diff --git a/emscripten/browserfs.js b/emscripten/browserfs.js index 9f4989497b..72a49aa597 100644 --- a/emscripten/browserfs.js +++ b/emscripten/browserfs.js @@ -1,8903 +1,38 @@ -(function() { -/** -* This file installs all of the polyfills that BrowserFS requires. -*/ -// IE < 9 does not define this function. -if (!Date.now) { - Date.now = function now() { - return new Date().getTime(); - }; -} - -// IE < 9 does not define this function. -if (!Array.isArray) { - Array.isArray = function (vArg) { - return Object.prototype.toString.call(vArg) === "[object Array]"; - }; -} - -// IE < 9 does not define this function. -// From https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/keys -if (!Object.keys) { - Object.keys = (function () { - - var hasOwnProperty = Object.prototype.hasOwnProperty, hasDontEnumBug = !({ toString: null }).propertyIsEnumerable('toString'), dontEnums = [ - 'toString', - 'toLocaleString', - 'valueOf', - 'hasOwnProperty', - 'isPrototypeOf', - 'propertyIsEnumerable', - 'constructor' - ], dontEnumsLength = dontEnums.length; - - return function (obj) { - if (typeof obj !== 'object' && (typeof obj !== 'function' || obj === null)) { - throw new TypeError('Object.keys called on non-object'); - } - - var result = [], prop, i; - - for (prop in obj) { - if (hasOwnProperty.call(obj, prop)) { - result.push(prop); - } - } - - if (hasDontEnumBug) { - for (i = 0; i < dontEnumsLength; i++) { - if (hasOwnProperty.call(obj, dontEnums[i])) { - result.push(dontEnums[i]); - } - } - } - return result; - }; - }()); -} - -// IE substr does not support negative indices -if ('ab'.substr(-1) !== 'b') { - String.prototype.substr = function (substr) { - return function (start, length) { - // did we get a negative start, calculate how much it is from the - // beginning of the string - if (start < 0) - start = this.length + start; - - // call the original function - return substr.call(this, start, length); - }; - }(String.prototype.substr); -} - -// IE < 9 does not support forEach -if (!Array.prototype.forEach) { - Array.prototype.forEach = function (fn, scope) { - for (var i = 0; i < this.length; ++i) { - if (i in this) { - fn.call(scope, this[i], i, this); - } - } - }; -} - -// Only IE10 has setImmediate. -// @todo: Determine viability of switching to the 'proper' polyfill for this. -if (typeof setImmediate === 'undefined') { - // XXX avoid importing the global module. - var gScope = typeof window !== 'undefined' ? window : typeof self !== 'undefined' ? self : global; - var timeouts = []; - var messageName = "zero-timeout-message"; - var canUsePostMessage = function () { - if (typeof gScope.importScripts !== 'undefined' || !gScope.postMessage) { - return false; - } - var postMessageIsAsync = true; - var oldOnMessage = gScope.onmessage; - gScope.onmessage = function () { - postMessageIsAsync = false; - }; - gScope.postMessage('', '*'); - gScope.onmessage = oldOnMessage; - return postMessageIsAsync; - }; - if (canUsePostMessage()) { - gScope.setImmediate = function (fn) { - timeouts.push(fn); - gScope.postMessage(messageName, "*"); - }; - var handleMessage = function (event) { - if (event.source === self && event.data === messageName) { - if (event.stopPropagation) { - event.stopPropagation(); - } else { - event.cancelBubble = true; - } - if (timeouts.length > 0) { - var fn = timeouts.shift(); - return fn(); - } - } - }; - if (gScope.addEventListener) { - gScope.addEventListener('message', handleMessage, true); - } else { - gScope.attachEvent('onmessage', handleMessage); - } - } else if (gScope.MessageChannel) { - // WebWorker MessageChannel - var channel = new gScope.MessageChannel(); - channel.port1.onmessage = function (event) { - if (timeouts.length > 0) { - return timeouts.shift()(); - } - }; - gScope.setImmediate = function (fn) { - timeouts.push(fn); - channel.port2.postMessage(''); - }; - } else { - gScope.setImmediate = function (fn) { - return setTimeout(fn, 0); - var scriptEl = window.document.createElement("script"); - scriptEl.onreadystatechange = function () { - fn(); - scriptEl.onreadystatechange = null; - scriptEl.parentNode.removeChild(scriptEl); - return scriptEl = null; - }; - gScope.document.documentElement.appendChild(scriptEl); - }; - } -} - -// IE<9 does not define indexOf. -// From: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/indexOf -if (!Array.prototype.indexOf) { - Array.prototype.indexOf = function (searchElement, fromIndex) { - if (typeof fromIndex === "undefined") { fromIndex = 0; } - if (!this) { - throw new TypeError(); - } - - var length = this.length; - if (length === 0 || pivot >= length) { - return -1; - } - - var pivot = fromIndex; - if (pivot < 0) { - pivot = length + pivot; - } - - for (var i = pivot; i < length; i++) { - if (this[i] === searchElement) { - return i; - } - } - return -1; - }; -} - -// IE<9 does not support forEach -// From: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/forEach -if (!Array.prototype.forEach) { - Array.prototype.forEach = function (fn, scope) { - var i, len; - for (i = 0, len = this.length; i < len; ++i) { - if (i in this) { - fn.call(scope, this[i], i, this); - } - } - }; -} - -// IE<9 does not support map -// From: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/map -if (!Array.prototype.map) { - Array.prototype.map = function (callback, thisArg) { - var T, A, k; - if (this == null) { - throw new TypeError(" this is null or not defined"); - } - - // 1. Let O be the result of calling ToObject passing the |this| value as the argument. - var O = Object(this); - - // 2. Let lenValue be the result of calling the Get internal method of O with the argument "length". - // 3. Let len be ToUint32(lenValue). - var len = O.length >>> 0; - - // 4. If IsCallable(callback) is false, throw a TypeError exception. - // See: http://es5.github.com/#x9.11 - if (typeof callback !== "function") { - throw new TypeError(callback + " is not a function"); - } - - // 5. If thisArg was supplied, let T be thisArg; else let T be undefined. - if (thisArg) { - T = thisArg; - } - - // 6. Let A be a new array created as if by the expression new Array(len) where Array is - // the standard built-in constructor with that name and len is the value of len. - A = new Array(len); - - // 7. Let k be 0 - k = 0; - - while (k < len) { - var kValue, mappedValue; - - // a. Let Pk be ToString(k). - // This is implicit for LHS operands of the in operator - // b. Let kPresent be the result of calling the HasProperty internal method of O with argument Pk. - // This step can be combined with c - // c. If kPresent is true, then - if (k in O) { - // i. Let kValue be the result of calling the Get internal method of O with argument Pk. - kValue = O[k]; - - // ii. Let mappedValue be the result of calling the Call internal method of callback - // with T as the this value and argument list containing kValue, k, and O. - mappedValue = callback.call(T, kValue, k, O); - - // iii. Call the DefineOwnProperty internal method of A with arguments - // Pk, Property Descriptor {Value: mappedValue, : true, Enumerable: true, Configurable: true}, - // and false. - // In browsers that support Object.defineProperty, use the following: - // Object.defineProperty(A, Pk, { value: mappedValue, writable: true, enumerable: true, configurable: true }); - // For best browser support, use the following: - A[k] = mappedValue; - } - - // d. Increase k by 1. - k++; - } - - // 9. return A - return A; - }; -} - -/** -* IE9 and below only: Injects a VBScript function that converts the -* 'responseBody' attribute of an XMLHttpRequest into a bytestring. -* From: http://miskun.com/javascript/internet-explorer-and-binary-files-data-access/#comment-17 -* -* This must be performed *before* the page finishes loading, otherwise -* document.write will refresh the page. :( -* -* This is harmless to inject into non-IE browsers. -*/ -if (typeof document !== 'undefined' && window['chrome'] === undefined) { - document.write("\r\n" + "\r\n"); -} -//# sourceMappingURL=polyfills.js.map - - - -/** - * @license almond 0.3.0 Copyright (c) 2011-2014, The Dojo Foundation All Rights Reserved. - * Available via the MIT or new BSD license. - * see: http://github.com/jrburke/almond for details +(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.BrowserFS = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o 0) { - name.splice(i - 1, 2); - i -= 2; - } - } - } - //end trimDots - - name = name.join("/"); - } else if (name.indexOf('./') === 0) { - // No baseName, so this is ID is resolved relative - // to baseUrl, pull off the leading dot. - name = name.substring(2); - } - } - - //Apply map config if available. - if ((baseParts || starMap) && map) { - nameParts = name.split('/'); - - for (i = nameParts.length; i > 0; i -= 1) { - nameSegment = nameParts.slice(0, i).join("/"); - - if (baseParts) { - //Find the longest baseName segment match in the config. - //So, do joins on the biggest to smallest lengths of baseParts. - for (j = baseParts.length; j > 0; j -= 1) { - mapValue = map[baseParts.slice(0, j).join('/')]; - - //baseName segment has config, find if it has one for - //this name. - if (mapValue) { - mapValue = mapValue[nameSegment]; - if (mapValue) { - //Match, update name to the new value. - foundMap = mapValue; - foundI = i; - break; - } - } - } - } - - if (foundMap) { - break; - } - - //Check for a star map match, but just hold on to it, - //if there is a shorter segment match later in a matching - //config, then favor over this star map. - if (!foundStarMap && starMap && starMap[nameSegment]) { - foundStarMap = starMap[nameSegment]; - starI = i; - } - } - - if (!foundMap && foundStarMap) { - foundMap = foundStarMap; - foundI = starI; - } - - if (foundMap) { - nameParts.splice(0, foundI, foundMap); - name = nameParts.join('/'); - } - } - - return name; - } - - function makeRequire(relName, forceSync) { - return function () { - //A version of a require function that passes a moduleName - //value for items that may need to - //look up paths relative to the moduleName - var args = aps.call(arguments, 0); - - //If first arg is not require('string'), and there is only - //one arg, it is the array form without a callback. Insert - //a null so that the following concat is correct. - if (typeof args[0] !== 'string' && args.length === 1) { - args.push(null); - } - return req.apply(undef, args.concat([relName, forceSync])); - }; - } - - function makeNormalize(relName) { - return function (name) { - return normalize(name, relName); - }; - } - - function makeLoad(depName) { - return function (value) { - defined[depName] = value; - }; - } - - function callDep(name) { - if (hasProp(waiting, name)) { - var args = waiting[name]; - delete waiting[name]; - defining[name] = true; - main.apply(undef, args); - } - - if (!hasProp(defined, name) && !hasProp(defining, name)) { - throw new Error('No ' + name); - } - return defined[name]; - } - - //Turns a plugin!resource to [plugin, resource] - //with the plugin being undefined if the name - //did not have a plugin prefix. - function splitPrefix(name) { - var prefix, - index = name ? name.indexOf('!') : -1; - if (index > -1) { - prefix = name.substring(0, index); - name = name.substring(index + 1, name.length); - } - return [prefix, name]; - } - - /** - * Makes a name map, normalizing the name, and using a plugin - * for normalization if necessary. Grabs a ref to plugin - * too, as an optimization. - */ - makeMap = function (name, relName) { - var plugin, - parts = splitPrefix(name), - prefix = parts[0]; - - name = parts[1]; - - if (prefix) { - prefix = normalize(prefix, relName); - plugin = callDep(prefix); - } - - //Normalize according - if (prefix) { - if (plugin && plugin.normalize) { - name = plugin.normalize(name, makeNormalize(relName)); - } else { - name = normalize(name, relName); - } - } else { - name = normalize(name, relName); - parts = splitPrefix(name); - prefix = parts[0]; - name = parts[1]; - if (prefix) { - plugin = callDep(prefix); - } - } - - //Using ridiculous property names for space reasons - return { - f: prefix ? prefix + '!' + name : name, //fullName - n: name, - pr: prefix, - p: plugin - }; - }; - - function makeConfig(name) { - return function () { - return (config && config.config && config.config[name]) || {}; - }; - } - - handlers = { - require: function (name) { - return makeRequire(name); - }, - exports: function (name) { - var e = defined[name]; - if (typeof e !== 'undefined') { - return e; - } else { - return (defined[name] = {}); - } - }, - module: function (name) { - return { - id: name, - uri: '', - exports: defined[name], - config: makeConfig(name) - }; - } - }; - - main = function (name, deps, callback, relName) { - var cjsModule, depName, ret, map, i, - args = [], - callbackType = typeof callback, - usingExports; - - //Use name if no relName - relName = relName || name; - - //Call the callback to define the module, if necessary. - if (callbackType === 'undefined' || callbackType === 'function') { - //Pull out the defined dependencies and pass the ordered - //values to the callback. - //Default to [require, exports, module] if no deps - deps = !deps.length && callback.length ? ['require', 'exports', 'module'] : deps; - for (i = 0; i < deps.length; i += 1) { - map = makeMap(deps[i], relName); - depName = map.f; - - //Fast path CommonJS standard dependencies. - if (depName === "require") { - args[i] = handlers.require(name); - } else if (depName === "exports") { - //CommonJS module spec 1.1 - args[i] = handlers.exports(name); - usingExports = true; - } else if (depName === "module") { - //CommonJS module spec 1.1 - cjsModule = args[i] = handlers.module(name); - } else if (hasProp(defined, depName) || - hasProp(waiting, depName) || - hasProp(defining, depName)) { - args[i] = callDep(depName); - } else if (map.p) { - map.p.load(map.n, makeRequire(relName, true), makeLoad(depName), {}); - args[i] = defined[depName]; - } else { - throw new Error(name + ' missing ' + depName); - } - } - - ret = callback ? callback.apply(defined[name], args) : undefined; - - if (name) { - //If setting exports via "module" is in play, - //favor that over return value and exports. After that, - //favor a non-undefined return value over exports use. - if (cjsModule && cjsModule.exports !== undef && - cjsModule.exports !== defined[name]) { - defined[name] = cjsModule.exports; - } else if (ret !== undef || !usingExports) { - //Use the return value from the function. - defined[name] = ret; - } - } - } else if (name) { - //May just be an object definition for the module. Only - //worry about defining if have a module name. - defined[name] = callback; - } - }; - - requirejs = require = req = function (deps, callback, relName, forceSync, alt) { - if (typeof deps === "string") { - if (handlers[deps]) { - //callback in this case is really relName - return handlers[deps](callback); - } - //Just return the module wanted. In this scenario, the - //deps arg is the module name, and second arg (if passed) - //is just the relName. - //Normalize module name, if it contains . or .. - return callDep(makeMap(deps, callback).f); - } else if (!deps.splice) { - //deps is a config object, not an array. - config = deps; - if (config.deps) { - req(config.deps, config.callback); - } - if (!callback) { - return; - } - - if (callback.splice) { - //callback is an array, which means it is a dependency list. - //Adjust args if there are dependencies - deps = callback; - callback = relName; - relName = null; - } else { - deps = undef; - } - } - - //Support require(['a']) - callback = callback || function () {}; - - //If relName is a function, it is an errback handler, - //so remove it. - if (typeof relName === 'function') { - relName = forceSync; - forceSync = alt; - } - - //Simulate async callback; - if (forceSync) { - main(undef, deps, callback, relName); - } else { - //Using a non-zero value because of concern for what old browsers - //do, and latest browsers "upgrade" to 4 if lower value is used: - //http://www.whatwg.org/specs/web-apps/current-work/multipage/timers.html#dom-windowtimers-settimeout: - //If want a value immediately, use require('id') instead -- something - //that works in almond on the global level, but not guaranteed and - //unlikely to work in other AMD implementations. - setTimeout(function () { - main(undef, deps, callback, relName); - }, 4); - } - - return req; - }; - - /** - * Just drops the config on the floor, but returns req in case - * the config return value is used. - */ - req.config = function (cfg) { - return req(cfg); - }; - - /** - * Expose module registry for debugging and tooling - */ - requirejs._defined = defined; - - define = function (name, deps, callback) { - - //This module may not have dependencies - if (!deps.splice) { - //deps is not an array, so probably means - //an object literal or factory function for - //the value. Adjust args. - callback = deps; - deps = []; - } - - if (!hasProp(defined, name) && !hasProp(waiting, name)) { - waiting[name] = [name, deps, callback]; - } - }; - - define.amd = { - jQuery: true - }; -}()); - -define("../../vendor/almond/almond", function(){}); - -/** -* @module core/api_error -*/ -define('core/api_error',["require", "exports"], function(require, exports) { - /** - * Standard libc error codes. Add more to this enum and ErrorStrings as they are - * needed. - * @url http://www.gnu.org/software/libc/manual/html_node/Error-Codes.html - */ - (function (ErrorCode) { - ErrorCode[ErrorCode["EPERM"] = 0] = "EPERM"; - ErrorCode[ErrorCode["ENOENT"] = 1] = "ENOENT"; - ErrorCode[ErrorCode["EIO"] = 2] = "EIO"; - ErrorCode[ErrorCode["EBADF"] = 3] = "EBADF"; - ErrorCode[ErrorCode["EACCES"] = 4] = "EACCES"; - ErrorCode[ErrorCode["EBUSY"] = 5] = "EBUSY"; - ErrorCode[ErrorCode["EEXIST"] = 6] = "EEXIST"; - ErrorCode[ErrorCode["ENOTDIR"] = 7] = "ENOTDIR"; - ErrorCode[ErrorCode["EISDIR"] = 8] = "EISDIR"; - ErrorCode[ErrorCode["EINVAL"] = 9] = "EINVAL"; - ErrorCode[ErrorCode["EFBIG"] = 10] = "EFBIG"; - ErrorCode[ErrorCode["ENOSPC"] = 11] = "ENOSPC"; - ErrorCode[ErrorCode["EROFS"] = 12] = "EROFS"; - ErrorCode[ErrorCode["ENOTEMPTY"] = 13] = "ENOTEMPTY"; - ErrorCode[ErrorCode["ENOTSUP"] = 14] = "ENOTSUP"; - })(exports.ErrorCode || (exports.ErrorCode = {})); - var ErrorCode = exports.ErrorCode; - - /** - * Strings associated with each error code. - */ - var ErrorStrings = {}; - ErrorStrings[0 /* EPERM */] = 'Operation not permitted.'; - ErrorStrings[1 /* ENOENT */] = 'No such file or directory.'; - ErrorStrings[2 /* EIO */] = 'Input/output error.'; - ErrorStrings[3 /* EBADF */] = 'Bad file descriptor.'; - ErrorStrings[4 /* EACCES */] = 'Permission denied.'; - ErrorStrings[5 /* EBUSY */] = 'Resource busy or locked.'; - ErrorStrings[6 /* EEXIST */] = 'File exists.'; - ErrorStrings[7 /* ENOTDIR */] = 'File is not a directory.'; - ErrorStrings[8 /* EISDIR */] = 'File is a directory.'; - ErrorStrings[9 /* EINVAL */] = 'Invalid argument.'; - ErrorStrings[10 /* EFBIG */] = 'File is too big.'; - ErrorStrings[11 /* ENOSPC */] = 'No space left on disk.'; - ErrorStrings[12 /* EROFS */] = 'Cannot modify a read-only file system.'; - ErrorStrings[13 /* ENOTEMPTY */] = 'Directory is not empty.'; - ErrorStrings[14 /* ENOTSUP */] = 'Operation is not supported.'; - - /** - * Represents a BrowserFS error. Passed back to applications after a failed - * call to the BrowserFS API. - */ - var ApiError = (function () { - /** - * Represents a BrowserFS error. Passed back to applications after a failed - * call to the BrowserFS API. - * - * Error codes mirror those returned by regular Unix file operations, which is - * what Node returns. - * @constructor ApiError - * @param type The type of the error. - * @param [message] A descriptive error message. - */ - function ApiError(type, message) { - this.type = type; - this.code = ErrorCode[type]; - if (message != null) { - this.message = message; - } else { - this.message = ErrorStrings[type]; - } - } - /** - * @return A friendly error message. - */ - ApiError.prototype.toString = function () { - return this.code + ": " + ErrorStrings[this.type] + " " + this.message; - }; - - ApiError.FileError = function (code, p) { - return new ApiError(code, p + ": " + ErrorStrings[code]); - }; - ApiError.ENOENT = function (path) { - return this.FileError(1 /* ENOENT */, path); - }; - - ApiError.EEXIST = function (path) { - return this.FileError(6 /* EEXIST */, path); - }; - - ApiError.EISDIR = function (path) { - return this.FileError(8 /* EISDIR */, path); - }; - - ApiError.ENOTDIR = function (path) { - return this.FileError(7 /* ENOTDIR */, path); - }; - - ApiError.EPERM = function (path) { - return this.FileError(0 /* EPERM */, path); - }; - return ApiError; - })(); - exports.ApiError = ApiError; -}); -//# sourceMappingURL=api_error.js.map -; -define('core/buffer_core',["require", "exports", './api_error'], function(require, exports, api_error) { - var FLOAT_POS_INFINITY = Math.pow(2, 128); - var FLOAT_NEG_INFINITY = -1 * FLOAT_POS_INFINITY; - var FLOAT_POS_INFINITY_AS_INT = 0x7F800000; - var FLOAT_NEG_INFINITY_AS_INT = -8388608; - var FLOAT_NaN_AS_INT = 0x7fc00000; - - - - /** - * Contains common definitions for most of the BufferCore classes. - * Subclasses only need to implement write/readUInt8 for full functionality. - */ - var BufferCoreCommon = (function () { - function BufferCoreCommon() { - } - BufferCoreCommon.prototype.getLength = function () { - throw new api_error.ApiError(14 /* ENOTSUP */, 'BufferCore implementations should implement getLength.'); - }; - BufferCoreCommon.prototype.writeInt8 = function (i, data) { - // Pack the sign bit as the highest bit. - // Note that we keep the highest bit in the value byte as the sign bit if it - // exists. - this.writeUInt8(i, (data & 0xFF) | ((data & 0x80000000) >>> 24)); - }; - BufferCoreCommon.prototype.writeInt16LE = function (i, data) { - this.writeUInt8(i, data & 0xFF); - - // Pack the sign bit as the highest bit. - // Note that we keep the highest bit in the value byte as the sign bit if it - // exists. - this.writeUInt8(i + 1, ((data >>> 8) & 0xFF) | ((data & 0x80000000) >>> 24)); - }; - BufferCoreCommon.prototype.writeInt16BE = function (i, data) { - this.writeUInt8(i + 1, data & 0xFF); - - // Pack the sign bit as the highest bit. - // Note that we keep the highest bit in the value byte as the sign bit if it - // exists. - this.writeUInt8(i, ((data >>> 8) & 0xFF) | ((data & 0x80000000) >>> 24)); - }; - BufferCoreCommon.prototype.writeInt32LE = function (i, data) { - this.writeUInt8(i, data & 0xFF); - this.writeUInt8(i + 1, (data >>> 8) & 0xFF); - this.writeUInt8(i + 2, (data >>> 16) & 0xFF); - this.writeUInt8(i + 3, (data >>> 24) & 0xFF); - }; - BufferCoreCommon.prototype.writeInt32BE = function (i, data) { - this.writeUInt8(i + 3, data & 0xFF); - this.writeUInt8(i + 2, (data >>> 8) & 0xFF); - this.writeUInt8(i + 1, (data >>> 16) & 0xFF); - this.writeUInt8(i, (data >>> 24) & 0xFF); - }; - BufferCoreCommon.prototype.writeUInt8 = function (i, data) { - throw new api_error.ApiError(14 /* ENOTSUP */, 'BufferCore implementations should implement writeUInt8.'); - }; - BufferCoreCommon.prototype.writeUInt16LE = function (i, data) { - this.writeUInt8(i, data & 0xFF); - this.writeUInt8(i + 1, (data >> 8) & 0xFF); - }; - BufferCoreCommon.prototype.writeUInt16BE = function (i, data) { - this.writeUInt8(i + 1, data & 0xFF); - this.writeUInt8(i, (data >> 8) & 0xFF); - }; - BufferCoreCommon.prototype.writeUInt32LE = function (i, data) { - this.writeInt32LE(i, data | 0); - }; - BufferCoreCommon.prototype.writeUInt32BE = function (i, data) { - this.writeInt32BE(i, data | 0); - }; - BufferCoreCommon.prototype.writeFloatLE = function (i, data) { - this.writeInt32LE(i, this.float2intbits(data)); - }; - BufferCoreCommon.prototype.writeFloatBE = function (i, data) { - this.writeInt32BE(i, this.float2intbits(data)); - }; - BufferCoreCommon.prototype.writeDoubleLE = function (i, data) { - var doubleBits = this.double2longbits(data); - this.writeInt32LE(i, doubleBits[0]); - this.writeInt32LE(i + 4, doubleBits[1]); - }; - BufferCoreCommon.prototype.writeDoubleBE = function (i, data) { - var doubleBits = this.double2longbits(data); - this.writeInt32BE(i + 4, doubleBits[0]); - this.writeInt32BE(i, doubleBits[1]); - }; - BufferCoreCommon.prototype.readInt8 = function (i) { - var val = this.readUInt8(i); - if (val & 0x80) { - // Sign bit is set, so perform sign extension. - return val | 0xFFFFFF80; - } else { - return val; - } - }; - BufferCoreCommon.prototype.readInt16LE = function (i) { - var val = this.readUInt16LE(i); - if (val & 0x8000) { - // Sign bit is set, so perform sign extension. - return val | 0xFFFF8000; - } else { - return val; - } - }; - BufferCoreCommon.prototype.readInt16BE = function (i) { - var val = this.readUInt16BE(i); - if (val & 0x8000) { - // Sign bit is set, so perform sign extension. - return val | 0xFFFF8000; - } else { - return val; - } - }; - BufferCoreCommon.prototype.readInt32LE = function (i) { - return this.readUInt32LE(i) | 0; - }; - BufferCoreCommon.prototype.readInt32BE = function (i) { - return this.readUInt32BE(i) | 0; - }; - BufferCoreCommon.prototype.readUInt8 = function (i) { - throw new api_error.ApiError(14 /* ENOTSUP */, 'BufferCore implementations should implement readUInt8.'); - }; - BufferCoreCommon.prototype.readUInt16LE = function (i) { - return (this.readUInt8(i + 1) << 8) | this.readUInt8(i); - }; - BufferCoreCommon.prototype.readUInt16BE = function (i) { - return (this.readUInt8(i) << 8) | this.readUInt8(i + 1); - }; - BufferCoreCommon.prototype.readUInt32LE = function (i) { - return ((this.readUInt8(i + 3) << 24) | (this.readUInt8(i + 2) << 16) | (this.readUInt8(i + 1) << 8) | this.readUInt8(i)) >>> 0; - }; - BufferCoreCommon.prototype.readUInt32BE = function (i) { - return ((this.readUInt8(i) << 24) | (this.readUInt8(i + 1) << 16) | (this.readUInt8(i + 2) << 8) | this.readUInt8(i + 3)) >>> 0; - }; - BufferCoreCommon.prototype.readFloatLE = function (i) { - return this.intbits2float(this.readInt32LE(i)); - }; - BufferCoreCommon.prototype.readFloatBE = function (i) { - return this.intbits2float(this.readInt32BE(i)); - }; - BufferCoreCommon.prototype.readDoubleLE = function (i) { - return this.longbits2double(this.readInt32LE(i + 4), this.readInt32LE(i)); - }; - BufferCoreCommon.prototype.readDoubleBE = function (i) { - return this.longbits2double(this.readInt32BE(i), this.readInt32BE(i + 4)); - }; - BufferCoreCommon.prototype.copy = function (start, end) { - throw new api_error.ApiError(14 /* ENOTSUP */, 'BufferCore implementations should implement copy.'); - }; - BufferCoreCommon.prototype.fill = function (value, start, end) { - for (var i = start; i < end; i++) { - this.writeUInt8(i, value); - } - }; - - BufferCoreCommon.prototype.float2intbits = function (f_val) { - var exp, f_view, i_view, sig, sign; - - // Special cases! - if (f_val === 0) { - return 0; - } - - // We map the infinities to JavaScript infinities. Map them back. - if (f_val === Number.POSITIVE_INFINITY) { - return FLOAT_POS_INFINITY_AS_INT; - } - if (f_val === Number.NEGATIVE_INFINITY) { - return FLOAT_NEG_INFINITY_AS_INT; - } - - // Convert JavaScript NaN to Float NaN value. - if (isNaN(f_val)) { - return FLOAT_NaN_AS_INT; - } - - // We have more bits of precision than a float, so below we round to - // the nearest significand. This appears to be what the x86 - // Java does for normal floating point operations. - sign = f_val < 0 ? 1 : 0; - f_val = Math.abs(f_val); - - // Subnormal zone! - // (−1)^signbits×2^−126×0.significandbits - // Largest subnormal magnitude: - // 0000 0000 0111 1111 1111 1111 1111 1111 - // Smallest subnormal magnitude: - // 0000 0000 0000 0000 0000 0000 0000 0001 - if (f_val <= 1.1754942106924411e-38 && f_val >= 1.4012984643248170e-45) { - exp = 0; - sig = Math.round((f_val / Math.pow(2, -126)) * Math.pow(2, 23)); - return (sign << 31) | (exp << 23) | sig; - } else { - // Regular FP numbers - exp = Math.floor(Math.log(f_val) / Math.LN2); - sig = Math.round((f_val / Math.pow(2, exp) - 1) * Math.pow(2, 23)); - return (sign << 31) | ((exp + 127) << 23) | sig; - } - }; - - BufferCoreCommon.prototype.double2longbits = function (d_val) { - var d_view, exp, high_bits, i_view, sig, sign; - - // Special cases - if (d_val === 0) { - return [0, 0]; - } - if (d_val === Number.POSITIVE_INFINITY) { - // High bits: 0111 1111 1111 0000 0000 0000 0000 0000 - // Low bits: 0000 0000 0000 0000 0000 0000 0000 0000 - return [0, 2146435072]; - } else if (d_val === Number.NEGATIVE_INFINITY) { - // High bits: 1111 1111 1111 0000 0000 0000 0000 0000 - // Low bits: 0000 0000 0000 0000 0000 0000 0000 0000 - return [0, -1048576]; - } else if (isNaN(d_val)) { - // High bits: 0111 1111 1111 1000 0000 0000 0000 0000 - // Low bits: 0000 0000 0000 0000 0000 0000 0000 0000 - return [0, 2146959360]; - } - sign = d_val < 0 ? 1 << 31 : 0; - d_val = Math.abs(d_val); - - // Check if it is a subnormal number. - // (-1)s × 0.f × 2-1022 - // Largest subnormal magnitude: - // 0000 0000 0000 1111 1111 1111 1111 1111 - // 1111 1111 1111 1111 1111 1111 1111 1111 - // Smallest subnormal magnitude: - // 0000 0000 0000 0000 0000 0000 0000 0000 - // 0000 0000 0000 0000 0000 0000 0000 0001 - if (d_val <= 2.2250738585072010e-308 && d_val >= 5.0000000000000000e-324) { - exp = 0; - sig = (d_val / Math.pow(2, -1022)) * Math.pow(2, 52); - } else { - exp = Math.floor(Math.log(d_val) / Math.LN2); - - // If d_val is close to a power of two, there's a chance that exp - // will be 1 greater than it should due to loss of accuracy in the - // log result. - if (d_val < Math.pow(2, exp)) { - exp = exp - 1; - } - sig = (d_val / Math.pow(2, exp) - 1) * Math.pow(2, 52); - exp = (exp + 1023) << 20; - } - - // Simulate >> 32 - high_bits = ((sig * Math.pow(2, -32)) | 0) | sign | exp; - return [sig & 0xFFFF, high_bits]; - }; - - BufferCoreCommon.prototype.intbits2float = function (int32) { - // Map +/- infinity to JavaScript equivalents - if (int32 === FLOAT_POS_INFINITY_AS_INT) { - return Number.POSITIVE_INFINITY; - } else if (int32 === FLOAT_NEG_INFINITY_AS_INT) { - return Number.NEGATIVE_INFINITY; - } - var sign = (int32 & 0x80000000) >>> 31; - var exponent = (int32 & 0x7F800000) >>> 23; - var significand = int32 & 0x007FFFFF; - var value; - if (exponent === 0) { - value = Math.pow(-1, sign) * significand * Math.pow(2, -149); - } else { - value = Math.pow(-1, sign) * (1 + significand * Math.pow(2, -23)) * Math.pow(2, exponent - 127); - } - - // NaN check - if (value < FLOAT_NEG_INFINITY || value > FLOAT_POS_INFINITY) { - value = NaN; - } - return value; - }; - - BufferCoreCommon.prototype.longbits2double = function (uint32_a, uint32_b) { - var sign = (uint32_a & 0x80000000) >>> 31; - var exponent = (uint32_a & 0x7FF00000) >>> 20; - var significand = ((uint32_a & 0x000FFFFF) * Math.pow(2, 32)) + uint32_b; - - // Special values! - if (exponent === 0 && significand === 0) { - return 0; - } - if (exponent === 2047) { - if (significand === 0) { - if (sign === 1) { - return Number.NEGATIVE_INFINITY; - } - return Number.POSITIVE_INFINITY; - } else { - return NaN; - } - } - if (exponent === 0) - return Math.pow(-1, sign) * significand * Math.pow(2, -1074); - return Math.pow(-1, sign) * (1 + significand * Math.pow(2, -52)) * Math.pow(2, exponent - 1023); - }; - return BufferCoreCommon; - })(); - exports.BufferCoreCommon = BufferCoreCommon; -}); -//# sourceMappingURL=buffer_core.js.map -; -var __extends = this.__extends || function (d, b) { - for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; - function __() { this.constructor = d; } - __.prototype = b.prototype; - d.prototype = new __(); -}; -define('core/buffer_core_array',["require", "exports", './buffer_core'], function(require, exports, buffer_core) { - // Used to clear segments of an array index. - var clearMasks = [0xFFFFFF00, 0xFFFF00FF, 0xFF00FFFF, 0x00FFFFFF]; - - /** - * Implementation of BufferCore that is backed by an array of 32-bit ints. - * Data is stored little endian. - * Example: Bytes 0 through 3 are present in the first int: - * BYTE 3 BYTE 2 BYTE 1 BYTE 0 - * 0000 0000 | 0000 0000 | 0000 0000 | 0000 0000 - */ - var BufferCoreArray = (function (_super) { - __extends(BufferCoreArray, _super); - function BufferCoreArray(length) { - _super.call(this); - this.length = length; - this.buff = new Array(Math.ceil(length / 4)); - - // Zero-fill the array. - var bufflen = this.buff.length; - for (var i = 0; i < bufflen; i++) { - this.buff[i] = 0; - } - } - BufferCoreArray.isAvailable = function () { - return true; - }; - - BufferCoreArray.prototype.getLength = function () { - return this.length; - }; - BufferCoreArray.prototype.writeUInt8 = function (i, data) { - data &= 0xFF; - - // Which int? (Equivalent to (i/4)|0) - var arrIdx = i >> 2; - - // Which offset? (Equivalent to i - arrIdx*4) - var intIdx = i & 3; - this.buff[arrIdx] = this.buff[arrIdx] & clearMasks[intIdx]; - this.buff[arrIdx] = this.buff[arrIdx] | (data << (intIdx << 3)); - }; - BufferCoreArray.prototype.readUInt8 = function (i) { - // Which int? - var arrIdx = i >> 2; - - // Which offset? - var intIdx = i & 3; - - // Bring the data we want into the lowest 8 bits, and truncate. - return (this.buff[arrIdx] >> (intIdx << 3)) & 0xFF; - }; - BufferCoreArray.prototype.copy = function (start, end) { - // Stupid unoptimized copy. Later, we could do optimizations when aligned. - var newBC = new BufferCoreArray(end - start); - for (var i = start; i < end; i++) { - newBC.writeUInt8(i - start, this.readUInt8(i)); - } - return newBC; - }; - return BufferCoreArray; - })(buffer_core.BufferCoreCommon); - exports.BufferCoreArray = BufferCoreArray; - - // Type-check the class. - var _ = BufferCoreArray; -}); -//# sourceMappingURL=buffer_core_array.js.map -; -var __extends = this.__extends || function (d, b) { - for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; - function __() { this.constructor = d; } - __.prototype = b.prototype; - d.prototype = new __(); -}; -define('core/buffer_core_arraybuffer',["require", "exports", './buffer_core'], function(require, exports, buffer_core) { - /** - * Represents data using an ArrayBuffer. - */ - var BufferCoreArrayBuffer = (function (_super) { - __extends(BufferCoreArrayBuffer, _super); - function BufferCoreArrayBuffer(arg1) { - _super.call(this); - if (typeof arg1 === 'number') { - this.buff = new DataView(new ArrayBuffer(arg1)); - } else if (arg1 instanceof DataView) { - this.buff = arg1; - } else { - this.buff = new DataView(arg1); - } - this.length = this.buff.byteLength; - } - BufferCoreArrayBuffer.isAvailable = function () { - return typeof DataView !== 'undefined'; - }; - - BufferCoreArrayBuffer.prototype.getLength = function () { - return this.length; - }; - BufferCoreArrayBuffer.prototype.writeInt8 = function (i, data) { - this.buff.setInt8(i, data); - }; - BufferCoreArrayBuffer.prototype.writeInt16LE = function (i, data) { - this.buff.setInt16(i, data, true); - }; - BufferCoreArrayBuffer.prototype.writeInt16BE = function (i, data) { - this.buff.setInt16(i, data, false); - }; - BufferCoreArrayBuffer.prototype.writeInt32LE = function (i, data) { - this.buff.setInt32(i, data, true); - }; - BufferCoreArrayBuffer.prototype.writeInt32BE = function (i, data) { - this.buff.setInt32(i, data, false); - }; - BufferCoreArrayBuffer.prototype.writeUInt8 = function (i, data) { - this.buff.setUint8(i, data); - }; - BufferCoreArrayBuffer.prototype.writeUInt16LE = function (i, data) { - this.buff.setUint16(i, data, true); - }; - BufferCoreArrayBuffer.prototype.writeUInt16BE = function (i, data) { - this.buff.setUint16(i, data, false); - }; - BufferCoreArrayBuffer.prototype.writeUInt32LE = function (i, data) { - this.buff.setUint32(i, data, true); - }; - BufferCoreArrayBuffer.prototype.writeUInt32BE = function (i, data) { - this.buff.setUint32(i, data, false); - }; - BufferCoreArrayBuffer.prototype.writeFloatLE = function (i, data) { - this.buff.setFloat32(i, data, true); - }; - BufferCoreArrayBuffer.prototype.writeFloatBE = function (i, data) { - this.buff.setFloat32(i, data, false); - }; - BufferCoreArrayBuffer.prototype.writeDoubleLE = function (i, data) { - this.buff.setFloat64(i, data, true); - }; - BufferCoreArrayBuffer.prototype.writeDoubleBE = function (i, data) { - this.buff.setFloat64(i, data, false); - }; - BufferCoreArrayBuffer.prototype.readInt8 = function (i) { - return this.buff.getInt8(i); - }; - BufferCoreArrayBuffer.prototype.readInt16LE = function (i) { - return this.buff.getInt16(i, true); - }; - BufferCoreArrayBuffer.prototype.readInt16BE = function (i) { - return this.buff.getInt16(i, false); - }; - BufferCoreArrayBuffer.prototype.readInt32LE = function (i) { - return this.buff.getInt32(i, true); - }; - BufferCoreArrayBuffer.prototype.readInt32BE = function (i) { - return this.buff.getInt32(i, false); - }; - BufferCoreArrayBuffer.prototype.readUInt8 = function (i) { - return this.buff.getUint8(i); - }; - BufferCoreArrayBuffer.prototype.readUInt16LE = function (i) { - return this.buff.getUint16(i, true); - }; - BufferCoreArrayBuffer.prototype.readUInt16BE = function (i) { - return this.buff.getUint16(i, false); - }; - BufferCoreArrayBuffer.prototype.readUInt32LE = function (i) { - return this.buff.getUint32(i, true); - }; - BufferCoreArrayBuffer.prototype.readUInt32BE = function (i) { - return this.buff.getUint32(i, false); - }; - BufferCoreArrayBuffer.prototype.readFloatLE = function (i) { - return this.buff.getFloat32(i, true); - }; - BufferCoreArrayBuffer.prototype.readFloatBE = function (i) { - return this.buff.getFloat32(i, false); - }; - BufferCoreArrayBuffer.prototype.readDoubleLE = function (i) { - return this.buff.getFloat64(i, true); - }; - BufferCoreArrayBuffer.prototype.readDoubleBE = function (i) { - return this.buff.getFloat64(i, false); - }; - BufferCoreArrayBuffer.prototype.copy = function (start, end) { - var aBuff = this.buff.buffer; - var newBuff; - - // Some ArrayBuffer implementations (IE10) do not have 'slice'. - // XXX: Type hacks - the typings don't have slice either. - if (ArrayBuffer.prototype.slice) { - // ArrayBuffer.slice is copying; exactly what we want. - newBuff = aBuff.slice(start, end); - } else { - var len = end - start; - newBuff = new ArrayBuffer(len); - - // Copy the old contents in. - var newUintArray = new Uint8Array(newBuff); - var oldUintArray = new Uint8Array(aBuff); - newUintArray.set(oldUintArray.subarray(start, end)); - } - return new BufferCoreArrayBuffer(newBuff); - }; - BufferCoreArrayBuffer.prototype.fill = function (value, start, end) { - // Value must be a byte wide. - value = value & 0xFF; - var i; - var len = end - start; - var intBytes = (((len) / 4) | 0) * 4; - - // Optimization: Write 4 bytes at a time. - // TODO: Could we copy 8 bytes at a time using Float64, or could we - // lose precision? - var intVal = (value << 24) | (value << 16) | (value << 8) | value; - for (i = 0; i < intBytes; i += 4) { - this.writeInt32LE(i + start, intVal); - } - for (i = intBytes; i < len; i++) { - this.writeUInt8(i + start, value); - } - }; - - /** - * Custom method for this buffer core. Get the backing object. - */ - BufferCoreArrayBuffer.prototype.getDataView = function () { - return this.buff; - }; - return BufferCoreArrayBuffer; - })(buffer_core.BufferCoreCommon); - exports.BufferCoreArrayBuffer = BufferCoreArrayBuffer; - - // Type-check the class. - var _ = BufferCoreArrayBuffer; -}); -//# sourceMappingURL=buffer_core_arraybuffer.js.map -; -var __extends = this.__extends || function (d, b) { - for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; - function __() { this.constructor = d; } - __.prototype = b.prototype; - d.prototype = new __(); -}; -define('core/buffer_core_imagedata',["require", "exports", './buffer_core'], function(require, exports, buffer_core) { - - - /** - * Implementation of BufferCore that is backed by an ImageData object. - * Useful in browsers with HTML5 canvas support, but no TypedArray support - * (IE9). - */ - var BufferCoreImageData = (function (_super) { - __extends(BufferCoreImageData, _super); - function BufferCoreImageData(length) { - _super.call(this); - this.length = length; - this.buff = BufferCoreImageData.getCanvasPixelArray(length); - } - /** - * Constructs a CanvasPixelArray that represents the given amount of bytes. - */ - BufferCoreImageData.getCanvasPixelArray = function (bytes) { - var ctx = BufferCoreImageData.imageDataFactory; - - // Lazily initialize, otherwise every browser (even those that will never - // use this code) will create a canvas on script load. - if (ctx === undefined) { - BufferCoreImageData.imageDataFactory = ctx = document.createElement('canvas').getContext('2d'); - } - - // You cannot create image data with size 0, so up it to size 1. - if (bytes === 0) - bytes = 1; - return ctx.createImageData(Math.ceil(bytes / 4), 1).data; - }; - BufferCoreImageData.isAvailable = function () { - // Modern browsers have removed this deprecated API, so it is not always around. - return typeof CanvasPixelArray !== 'undefined'; - }; - - BufferCoreImageData.prototype.getLength = function () { - return this.length; - }; - BufferCoreImageData.prototype.writeUInt8 = function (i, data) { - this.buff[i] = data; - }; - BufferCoreImageData.prototype.readUInt8 = function (i) { - return this.buff[i]; - }; - BufferCoreImageData.prototype.copy = function (start, end) { - // AFAIK, there's no efficient way to clone ImageData. - var newBC = new BufferCoreImageData(end - start); - for (var i = start; i < end; i++) { - newBC.writeUInt8(i - start, this.buff[i]); - } - return newBC; - }; - return BufferCoreImageData; - })(buffer_core.BufferCoreCommon); - exports.BufferCoreImageData = BufferCoreImageData; - - // Type-check the class. - var _ = BufferCoreImageData; -}); -//# sourceMappingURL=buffer_core_imagedata.js.map -; -define('core/string_util',["require", "exports"], function(require, exports) { - - - /** - * Find the 'utility' object for the given string encoding. Throws an exception - * if the encoding is invalid. - * @param [String] encoding a string encoding - * @return [BrowserFS.StringUtil.*] The StringUtil object for the given encoding - */ - function FindUtil(encoding) { - encoding = (function () { - switch (typeof encoding) { - case 'object': - return "" + encoding; - case 'string': - return encoding; - default: - throw new Error('Invalid encoding argument specified'); - } - })(); - encoding = encoding.toLowerCase(); - - switch (encoding) { - case 'utf8': - case 'utf-8': - return UTF8; - case 'ascii': - return ASCII; - case 'binary': - return BINARY; - case 'ucs2': - case 'ucs-2': - case 'utf16le': - case 'utf-16le': - return UCS2; - case 'hex': - return HEX; - case 'base64': - return BASE64; - - case 'binary_string': - return BINSTR; - case 'binary_string_ie': - return BINSTRIE; - case 'extended_ascii': - return ExtendedASCII; - - default: - throw new Error("Unknown encoding: " + encoding); - } - } - exports.FindUtil = FindUtil; - - /** - * String utility functions for UTF-8. Note that some UTF-8 strings *cannot* be - * expressed in terms of JavaScript UTF-16 strings. - * @see http://en.wikipedia.org/wiki/UTF-8 - */ - var UTF8 = (function () { - function UTF8() { - } - UTF8.str2byte = function (str, buf) { - var length = buf.length; - var i = 0; - var j = 0; - var maxJ = length; - var rv = []; - var numChars = 0; - while (i < str.length && j < maxJ) { - var code = str.charCodeAt(i++); - var next = str.charCodeAt(i); - if (0xD800 <= code && code <= 0xDBFF && 0xDC00 <= next && next <= 0xDFFF) { - // 4 bytes: Surrogate pairs! UTF-16 fun time. - if (j + 3 >= maxJ) { - break; - } else { - numChars++; - } - - // First pair: 10 bits of data, with an implicitly set 11th bit - // Second pair: 10 bits of data - var codePoint = (((code & 0x3FF) | 0x400) << 10) | (next & 0x3FF); - - // Highest 3 bits in first byte - buf.writeUInt8((codePoint >> 18) | 0xF0, j++); - - // Rest are all 6 bits - buf.writeUInt8(((codePoint >> 12) & 0x3F) | 0x80, j++); - buf.writeUInt8(((codePoint >> 6) & 0x3F) | 0x80, j++); - buf.writeUInt8((codePoint & 0x3F) | 0x80, j++); - i++; - } else if (code < 0x80) { - // One byte - buf.writeUInt8(code, j++); - numChars++; - } else if (code < 0x800) { - // Two bytes - if (j + 1 >= maxJ) { - break; - } else { - numChars++; - } - - // Highest 5 bits in first byte - buf.writeUInt8((code >> 6) | 0xC0, j++); - - // Lower 6 bits in second byte - buf.writeUInt8((code & 0x3F) | 0x80, j++); - } else if (code < 0x10000) { - // Three bytes - if (j + 2 >= maxJ) { - break; - } else { - numChars++; - } - - // Highest 4 bits in first byte - buf.writeUInt8((code >> 12) | 0xE0, j++); - - // Middle 6 bits in second byte - buf.writeUInt8(((code >> 6) & 0x3F) | 0x80, j++); - - // Lowest 6 bits in third byte - buf.writeUInt8((code & 0x3F) | 0x80, j++); - } - } - return j; - }; - - UTF8.byte2str = function (buff) { - var chars = []; - var i = 0; - while (i < buff.length) { - var code = buff.readUInt8(i++); - if (code < 0x80) { - chars.push(String.fromCharCode(code)); - } else if (code < 0xC0) { - throw new Error('Found incomplete part of character in string.'); - } else if (code < 0xE0) { - // 2 bytes: 5 and 6 bits - chars.push(String.fromCharCode(((code & 0x1F) << 6) | (buff.readUInt8(i++) & 0x3F))); - } else if (code < 0xF0) { - // 3 bytes: 4, 6, and 6 bits - chars.push(String.fromCharCode(((code & 0xF) << 12) | ((buff.readUInt8(i++) & 0x3F) << 6) | (buff.readUInt8(i++) & 0x3F))); - } else if (code < 0xF8) { - // 4 bytes: 3, 6, 6, 6 bits; surrogate pairs time! - // First 11 bits; remove 11th bit as per UTF-16 standard - var byte3 = buff.readUInt8(i + 2); - chars.push(String.fromCharCode(((((code & 0x7) << 8) | ((buff.readUInt8(i++) & 0x3F) << 2) | ((buff.readUInt8(i++) & 0x3F) >> 4)) & 0x3FF) | 0xD800)); - - // Final 10 bits - chars.push(String.fromCharCode((((byte3 & 0xF) << 6) | (buff.readUInt8(i++) & 0x3F)) | 0xDC00)); - } else { - throw new Error('Unable to represent UTF-8 string as UTF-16 JavaScript string.'); - } - } - return chars.join(''); - }; - - UTF8.byteLength = function (str) { - // Matches only the 10.. bytes that are non-initial characters in a - // multi-byte sequence. - // @todo This may be slower than iterating through the string in some cases. - var m = encodeURIComponent(str).match(/%[89ABab]/g); - return str.length + (m ? m.length : 0); - }; - return UTF8; - })(); - exports.UTF8 = UTF8; - - /** - * String utility functions for 8-bit ASCII. Like Node, we mask the high bits of - * characters in JavaScript UTF-16 strings. - * @see http://en.wikipedia.org/wiki/ASCII - */ - var ASCII = (function () { - function ASCII() { - } - ASCII.str2byte = function (str, buf) { - var length = str.length > buf.length ? buf.length : str.length; - for (var i = 0; i < length; i++) { - buf.writeUInt8(str.charCodeAt(i) % 256, i); - } - return length; - }; - - ASCII.byte2str = function (buff) { - var chars = new Array(buff.length); - for (var i = 0; i < buff.length; i++) { - chars[i] = String.fromCharCode(buff.readUInt8(i) & 0x7F); - } - return chars.join(''); - }; - - ASCII.byteLength = function (str) { - return str.length; - }; - return ASCII; - })(); - exports.ASCII = ASCII; - - /** - * (Nonstandard) String utility function for 8-bit ASCII with the extended - * character set. Unlike the ASCII above, we do not mask the high bits. - * @see http://en.wikipedia.org/wiki/Extended_ASCII - */ - var ExtendedASCII = (function () { - function ExtendedASCII() { - } - ExtendedASCII.str2byte = function (str, buf) { - var length = str.length > buf.length ? buf.length : str.length; - for (var i = 0; i < length; i++) { - var charCode = str.charCodeAt(i); - if (charCode > 0x7F) { - // Check if extended ASCII. - var charIdx = ExtendedASCII.extendedChars.indexOf(str.charAt(i)); - if (charIdx > -1) { - charCode = charIdx + 0x80; - } - // Otherwise, keep it as-is. - } - buf.writeUInt8(charCode, i); - } - return length; - }; - - ExtendedASCII.byte2str = function (buff) { - var chars = new Array(buff.length); - for (var i = 0; i < buff.length; i++) { - var charCode = buff.readUInt8(i); - if (charCode > 0x7F) { - chars[i] = ExtendedASCII.extendedChars[charCode - 128]; - } else { - chars[i] = String.fromCharCode(charCode); - } - } - return chars.join(''); - }; - - ExtendedASCII.byteLength = function (str) { - return str.length; - }; - ExtendedASCII.extendedChars = [ - '\u00C7', '\u00FC', '\u00E9', '\u00E2', '\u00E4', - '\u00E0', '\u00E5', '\u00E7', '\u00EA', '\u00EB', '\u00E8', '\u00EF', - '\u00EE', '\u00EC', '\u00C4', '\u00C5', '\u00C9', '\u00E6', '\u00C6', - '\u00F4', '\u00F6', '\u00F2', '\u00FB', '\u00F9', '\u00FF', '\u00D6', - '\u00DC', '\u00F8', '\u00A3', '\u00D8', '\u00D7', '\u0192', '\u00E1', - '\u00ED', '\u00F3', '\u00FA', '\u00F1', '\u00D1', '\u00AA', '\u00BA', - '\u00BF', '\u00AE', '\u00AC', '\u00BD', '\u00BC', '\u00A1', '\u00AB', - '\u00BB', '_', '_', '_', '\u00A6', '\u00A6', '\u00C1', '\u00C2', '\u00C0', - '\u00A9', '\u00A6', '\u00A6', '+', '+', '\u00A2', '\u00A5', '+', '+', '-', - '-', '+', '-', '+', '\u00E3', '\u00C3', '+', '+', '-', '-', '\u00A6', '-', - '+', '\u00A4', '\u00F0', '\u00D0', '\u00CA', '\u00CB', '\u00C8', 'i', - '\u00CD', '\u00CE', '\u00CF', '+', '+', '_', '_', '\u00A6', '\u00CC', '_', - '\u00D3', '\u00DF', '\u00D4', '\u00D2', '\u00F5', '\u00D5', '\u00B5', - '\u00FE', '\u00DE', '\u00DA', '\u00DB', '\u00D9', '\u00FD', '\u00DD', - '\u00AF', '\u00B4', '\u00AD', '\u00B1', '_', '\u00BE', '\u00B6', '\u00A7', - '\u00F7', '\u00B8', '\u00B0', '\u00A8', '\u00B7', '\u00B9', '\u00B3', - '\u00B2', '_', ' ']; - return ExtendedASCII; - })(); - exports.ExtendedASCII = ExtendedASCII; - - /** - * String utility functions for Node's BINARY strings, which represent a single - * byte per character. - */ - var BINARY = (function () { - function BINARY() { - } - BINARY.str2byte = function (str, buf) { - var length = str.length > buf.length ? buf.length : str.length; - for (var i = 0; i < length; i++) { - buf.writeUInt8(str.charCodeAt(i) & 0xFF, i); - } - return length; - }; - - BINARY.byte2str = function (buff) { - var chars = new Array(buff.length); - for (var i = 0; i < buff.length; i++) { - chars[i] = String.fromCharCode(buff.readUInt8(i) & 0xFF); - } - return chars.join(''); - }; - - BINARY.byteLength = function (str) { - return str.length; - }; - return BINARY; - })(); - exports.BINARY = BINARY; - - /** - * Contains string utility functions for base-64 encoding. - * - * Adapted from the StackOverflow comment linked below. - * @see http://stackoverflow.com/questions/246801/how-can-you-encode-to-base64-using-javascript#246813 - * @see http://en.wikipedia.org/wiki/Base64 - * @todo Bake in support for btoa() and atob() if available. - */ - var BASE64 = (function () { - function BASE64() { - } - BASE64.byte2str = function (buff) { - var output = ''; - var i = 0; - while (i < buff.length) { - var chr1 = buff.readUInt8(i++); - var chr2 = i < buff.length ? buff.readUInt8(i++) : NaN; - var chr3 = i < buff.length ? buff.readUInt8(i++) : NaN; - var enc1 = chr1 >> 2; - var enc2 = ((chr1 & 3) << 4) | (chr2 >> 4); - var enc3 = ((chr2 & 15) << 2) | (chr3 >> 6); - var enc4 = chr3 & 63; - if (isNaN(chr2)) { - enc3 = enc4 = 64; - } else if (isNaN(chr3)) { - enc4 = 64; - } - output = output + BASE64.num2b64[enc1] + BASE64.num2b64[enc2] + BASE64.num2b64[enc3] + BASE64.num2b64[enc4]; - } - return output; - }; - - BASE64.str2byte = function (str, buf) { - var length = buf.length; - var output = ''; - var i = 0; - str = str.replace(/[^A-Za-z0-9\+\/\=\-\_]/g, ''); - var j = 0; - while (i < str.length) { - var enc1 = BASE64.b642num[str.charAt(i++)]; - var enc2 = BASE64.b642num[str.charAt(i++)]; - var enc3 = BASE64.b642num[str.charAt(i++)]; - var enc4 = BASE64.b642num[str.charAt(i++)]; - var chr1 = (enc1 << 2) | (enc2 >> 4); - var chr2 = ((enc2 & 15) << 4) | (enc3 >> 2); - var chr3 = ((enc3 & 3) << 6) | enc4; - buf.writeUInt8(chr1, j++); - if (j === length) { - break; - } - if (enc3 !== 64) { - output += buf.writeUInt8(chr2, j++); - } - if (j === length) { - break; - } - if (enc4 !== 64) { - output += buf.writeUInt8(chr3, j++); - } - if (j === length) { - break; - } - } - return j; - }; - - BASE64.byteLength = function (str) { - return Math.floor(((str.replace(/[^A-Za-z0-9\+\/\-\_]/g, '')).length * 6) / 8); - }; - BASE64.b64chars = ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '+', '/', '=']; - BASE64.num2b64 = (function () { - var obj = new Array(BASE64.b64chars.length); - for (var idx = 0; idx < BASE64.b64chars.length; idx++) { - var i = BASE64.b64chars[idx]; - obj[idx] = i; - } - return obj; - })(); - - BASE64.b642num = (function () { - var obj = {}; - for (var idx = 0; idx < BASE64.b64chars.length; idx++) { - var i = BASE64.b64chars[idx]; - obj[i] = idx; - } - obj['-'] = 62; - obj['_'] = 63; - return obj; - })(); - return BASE64; - })(); - exports.BASE64 = BASE64; - - /** - * String utility functions for the UCS-2 encoding. Note that our UCS-2 handling - * is identical to our UTF-16 handling. - * - * Note: UCS-2 handling is identical to UTF-16. - * @see http://en.wikipedia.org/wiki/UCS2 - */ - var UCS2 = (function () { - function UCS2() { - } - UCS2.str2byte = function (str, buf) { - var len = str.length; - - // Clip length to longest string of valid characters that can fit in the - // byte range. - if (len * 2 > buf.length) { - len = buf.length % 2 === 1 ? (buf.length - 1) / 2 : buf.length / 2; - } - for (var i = 0; i < len; i++) { - buf.writeUInt16LE(str.charCodeAt(i), i * 2); - } - return len * 2; - }; - - UCS2.byte2str = function (buff) { - if (buff.length % 2 !== 0) { - throw new Error('Invalid UCS2 byte array.'); - } - var chars = new Array(buff.length / 2); - for (var i = 0; i < buff.length; i += 2) { - chars[i / 2] = String.fromCharCode(buff.readUInt8(i) | (buff.readUInt8(i + 1) << 8)); - } - return chars.join(''); - }; - - UCS2.byteLength = function (str) { - return str.length * 2; - }; - return UCS2; - })(); - exports.UCS2 = UCS2; - - /** - * Contains string utility functions for hex encoding. - * @see http://en.wikipedia.org/wiki/Hexadecimal - */ - var HEX = (function () { - function HEX() { - } - HEX.str2byte = function (str, buf) { - if (str.length % 2 === 1) { - throw new Error('Invalid hex string'); - } - - // Each character is 1 byte encoded as two hex characters; so 1 byte becomes - // 2 bytes. - var numBytes = str.length >> 1; - if (numBytes > buf.length) { - numBytes = buf.length; - } - for (var i = 0; i < numBytes; i++) { - var char1 = this.hex2num[str.charAt(i << 1)]; - var char2 = this.hex2num[str.charAt((i << 1) + 1)]; - buf.writeUInt8((char1 << 4) | char2, i); - } - return numBytes; - }; - - HEX.byte2str = function (buff) { - var len = buff.length; - var chars = new Array(len << 1); - var j = 0; - for (var i = 0; i < len; i++) { - var hex2 = buff.readUInt8(i) & 0xF; - var hex1 = buff.readUInt8(i) >> 4; - chars[j++] = this.num2hex[hex1]; - chars[j++] = this.num2hex[hex2]; - } - return chars.join(''); - }; - - HEX.byteLength = function (str) { - // Assuming a valid string. - return str.length >> 1; - }; - HEX.HEXCHARS = '0123456789abcdef'; - - HEX.num2hex = (function () { - var obj = new Array(HEX.HEXCHARS.length); - for (var idx = 0; idx < HEX.HEXCHARS.length; idx++) { - var i = HEX.HEXCHARS[idx]; - obj[idx] = i; - } - return obj; - })(); - - HEX.hex2num = (function () { - var idx, i; - var obj = {}; - for (idx = 0; idx < HEX.HEXCHARS.length; idx++) { - i = HEX.HEXCHARS[idx]; - obj[i] = idx; - } - var capitals = 'ABCDEF'; - for (idx = 0; idx < capitals.length; idx++) { - i = capitals[idx]; - obj[i] = idx + 10; - } - return obj; - })(); - return HEX; - })(); - exports.HEX = HEX; - - /** - * Contains string utility functions for binary string encoding. This is where we - * pack arbitrary binary data as a UTF-16 string. - * - * Each character in the string is two bytes. The first character in the string - * is special: The first byte specifies if the binary data is of odd byte length. - * If it is, then it is a 1 and the second byte is the first byte of data; if - * not, it is a 0 and the second byte is 0. - * - * Everything is little endian. - */ - var BINSTR = (function () { - function BINSTR() { - } - BINSTR.str2byte = function (str, buf) { - // Special case: Empty string - if (str.length === 0) { - return 0; - } - var numBytes = BINSTR.byteLength(str); - if (numBytes > buf.length) { - numBytes = buf.length; - } - var j = 0; - var startByte = 0; - var endByte = startByte + numBytes; - - // Handle first character separately - var firstChar = str.charCodeAt(j++); - if (firstChar !== 0) { - buf.writeUInt8(firstChar & 0xFF, 0); - startByte = 1; - } - for (var i = startByte; i < endByte; i += 2) { - var chr = str.charCodeAt(j++); - if (endByte - i === 1) { - // Write first byte of character - buf.writeUInt8(chr >> 8, i); - } - if (endByte - i >= 2) { - // Write both bytes in character - buf.writeUInt16BE(chr, i); - } - } - return numBytes; - }; - - BINSTR.byte2str = function (buff) { - var len = buff.length; - - // Special case: Empty string - if (len === 0) { - return ''; - } - var chars = new Array((len >> 1) + 1); - var j = 0; - for (var i = 0; i < chars.length; i++) { - if (i === 0) { - if (len % 2 === 1) { - chars[i] = String.fromCharCode((1 << 8) | buff.readUInt8(j++)); - } else { - chars[i] = String.fromCharCode(0); - } - } else { - chars[i] = String.fromCharCode((buff.readUInt8(j++) << 8) | buff.readUInt8(j++)); - } - } - return chars.join(''); - }; - - BINSTR.byteLength = function (str) { - if (str.length === 0) { - // Special case: Empty string. - return 0; - } - var firstChar = str.charCodeAt(0); - var bytelen = (str.length - 1) << 1; - if (firstChar !== 0) { - bytelen++; - } - return bytelen; - }; - return BINSTR; - })(); - exports.BINSTR = BINSTR; - - /** - * IE/older FF version of binary string. One byte per character, offset by 0x20. - */ - var BINSTRIE = (function () { - function BINSTRIE() { - } - BINSTRIE.str2byte = function (str, buf) { - var length = str.length > buf.length ? buf.length : str.length; - for (var i = 0; i < length; i++) { - buf.writeUInt8(str.charCodeAt(i) - 0x20, i); - } - return length; - }; - - BINSTRIE.byte2str = function (buff) { - var chars = new Array(buff.length); - for (var i = 0; i < buff.length; i++) { - chars[i] = String.fromCharCode(buff.readUInt8(i) + 0x20); - } - return chars.join(''); - }; - - BINSTRIE.byteLength = function (str) { - return str.length; - }; - return BINSTRIE; - })(); - exports.BINSTRIE = BINSTRIE; -}); -//# sourceMappingURL=string_util.js.map -; -define('core/buffer',["require", "exports", './buffer_core', './buffer_core_array', './buffer_core_arraybuffer', './buffer_core_imagedata', './string_util'], function(require, exports, buffer_core, buffer_core_array, buffer_core_arraybuffer, buffer_core_imagedata, string_util) { - // BC implementations earlier in the array are preferred. - var BufferCorePreferences = [ - buffer_core_arraybuffer.BufferCoreArrayBuffer, - buffer_core_imagedata.BufferCoreImageData, - buffer_core_array.BufferCoreArray - ]; - - var PreferredBufferCore = (function () { - var i, bci; - for (i = 0; i < BufferCorePreferences.length; i++) { - bci = BufferCorePreferences[i]; - if (bci.isAvailable()) - return bci; - } - - throw new Error("This browser does not support any available BufferCore implementations."); - })(); - - - - - - /** - * Emulates Node's Buffer API. Wraps a BufferCore object that is responsible - * for actually writing/reading data from some data representation in memory. - */ - var Buffer = (function () { - function Buffer(arg1, arg2, arg3) { - if (typeof arg2 === "undefined") { arg2 = 'utf8'; } - this.offset = 0; - var i; - - // Node apparently allows you to construct buffers w/o 'new'. - if (!(this instanceof Buffer)) { - return new Buffer(arg1, arg2); - } - - if (arg1 instanceof buffer_core.BufferCoreCommon) { - // constructor (data: buffer_core.BufferCore, start?: number, end?: number) - this.data = arg1; - var start = typeof arg2 === 'number' ? arg2 : 0; - var end = typeof arg3 === 'number' ? arg3 : this.data.getLength(); - this.offset = start; - this.length = end - start; - } else if (typeof arg1 === 'number') { - // constructor (size: number); - if (arg1 !== (arg1 >>> 0)) { - throw new TypeError('Buffer size must be a uint32.'); - } - this.length = arg1; - this.data = new PreferredBufferCore(arg1); - } else if (typeof DataView !== 'undefined' && arg1 instanceof DataView) { - // constructor (data: DataView); - this.data = new buffer_core_arraybuffer.BufferCoreArrayBuffer(arg1); - this.length = arg1.byteLength; - } else if (typeof ArrayBuffer !== 'undefined' && arg1 instanceof ArrayBuffer) { - // constructor (data: ArrayBuffer); - this.data = new buffer_core_arraybuffer.BufferCoreArrayBuffer(arg1); - this.length = arg1.byteLength; - } else if (arg1 instanceof Buffer) { - // constructor (data: Buffer); - var argBuff = arg1; - this.data = new PreferredBufferCore(arg1.length); - this.length = arg1.length; - argBuff.copy(this); - } else if (Array.isArray(arg1) || (arg1 != null && typeof arg1 === 'object' && typeof arg1[0] === 'number')) { - // constructor (data: number[]); - this.data = new PreferredBufferCore(arg1.length); - for (i = 0; i < arg1.length; i++) { - this.data.writeUInt8(i, arg1[i]); - } - this.length = arg1.length; - } else if (typeof arg1 === 'string') { - // constructor (data: string, encoding?: string); - this.length = Buffer.byteLength(arg1, arg2); - this.data = new PreferredBufferCore(this.length); - this.write(arg1, 0, this.length, arg2); - } else { - throw new Error("Invalid argument to Buffer constructor: " + arg1); - } - } - Buffer.prototype.getBufferCore = function () { - return this.data; - }; - - Buffer.prototype.getOffset = function () { - return this.offset; - }; - - /** - * **NONSTANDARD**: Set the octet at index. Emulates NodeJS buffer's index - * operation. Octet can be signed or unsigned. - * @param {number} index - the index to set the value at - * @param {number} value - the value to set at the given index - */ - Buffer.prototype.set = function (index, value) { - // In Node, the following happens: - // buffer[0] = -1; - // buffer[0]; // 255 - if (value < 0) { - return this.writeInt8(value, index); - } else { - return this.writeUInt8(value, index); - } - }; - - /** - * **NONSTANDARD**: Get the octet at index. - * @param {number} index - index to fetch the value at - * @return {number} the value at the given index - */ - Buffer.prototype.get = function (index) { - return this.readUInt8(index); - }; - - /** - * Writes string to the buffer at offset using the given encoding. - * If buffer did not contain enough space to fit the entire string, it will - * write a partial amount of the string. - * @param {string} str - Data to be written to buffer - * @param {number} [offset=0] - Offset in the buffer to write to - * @param {number} [length=this.length] - Number of bytes to write - * @param {string} [encoding=utf8] - Character encoding - * @return {number} Number of octets written. - */ - Buffer.prototype.write = function (str, offset, length, encoding) { - if (typeof offset === "undefined") { offset = 0; } - if (typeof length === "undefined") { length = this.length; } - if (typeof encoding === "undefined") { encoding = 'utf8'; } - // I hate Node's optional arguments. - if (typeof offset === 'string') { - // 'str' and 'encoding' specified - encoding = "" + offset; - offset = 0; - length = this.length; - } else if (typeof length === 'string') { - // 'str', 'offset', and 'encoding' specified - encoding = "" + length; - length = this.length; - } - - // Don't waste our time if the offset is beyond the buffer length - if (offset >= this.length) { - return 0; - } - var strUtil = string_util.FindUtil(encoding); - - // Are we trying to write past the buffer? - length = length + offset > this.length ? this.length - offset : length; - offset += this.offset; - return strUtil.str2byte(str, offset === 0 && length === this.length ? this : new Buffer(this.data, offset, length + offset)); - }; - - /** - * Decodes a portion of the Buffer into a String. - * @param {string} encoding - Character encoding to decode to - * @param {number} [start=0] - Start position in the buffer - * @param {number} [end=this.length] - Ending position in the buffer - * @return {string} A string from buffer data encoded with encoding, beginning - * at start, and ending at end. - */ - Buffer.prototype.toString = function (encoding, start, end) { - if (typeof encoding === "undefined") { encoding = 'utf8'; } - if (typeof start === "undefined") { start = 0; } - if (typeof end === "undefined") { end = this.length; } - if (!(start <= end)) { - throw new Error("Invalid start/end positions: " + start + " - " + end); - } - if (start === end) { - return ''; - } - if (end > this.length) { - end = this.length; - } - var strUtil = string_util.FindUtil(encoding); - - // Get the string representation of the given slice. Create a new buffer - // if need be. - return strUtil.byte2str(start === 0 && end === this.length ? this : new Buffer(this.data, start + this.offset, end + this.offset)); - }; - - /** - * Returns a JSON-representation of the Buffer instance, which is identical to - * the output for JSON Arrays. JSON.stringify implicitly calls this function - * when stringifying a Buffer instance. - * @return {object} An object that can be used for JSON stringification. - */ - Buffer.prototype.toJSON = function () { - // Construct a byte array for the JSON 'data'. - var len = this.length; - var byteArr = new Array(len); - for (var i = 0; i < len; i++) { - byteArr[i] = this.readUInt8(i); - } - return { - type: 'Buffer', - data: byteArr - }; - }; - - /** - * Does copy between buffers. The source and target regions can be overlapped. - * All values passed that are undefined/NaN or are out of bounds are set equal - * to their respective defaults. - * @param {Buffer} target - Buffer to copy into - * @param {number} [targetStart=0] - Index to start copying to in the targetBuffer - * @param {number} [sourceStart=0] - Index in this buffer to start copying from - * @param {number} [sourceEnd=this.length] - Index in this buffer stop copying at - * @return {number} The number of bytes copied into the target buffer. - */ - Buffer.prototype.copy = function (target, targetStart, sourceStart, sourceEnd) { - if (typeof targetStart === "undefined") { targetStart = 0; } - if (typeof sourceStart === "undefined") { sourceStart = 0; } - if (typeof sourceEnd === "undefined") { sourceEnd = this.length; } - // The Node code is weird. It sets some out-of-bounds args to their defaults - // and throws exceptions for others (sourceEnd). - targetStart = targetStart < 0 ? 0 : targetStart; - sourceStart = sourceStart < 0 ? 0 : sourceStart; - - // Need to sanity check all of the input. Node has really odd rules regarding - // when to apply default arguments. I decided to copy Node's logic. - if (sourceEnd < sourceStart) { - throw new RangeError('sourceEnd < sourceStart'); - } - if (sourceEnd === sourceStart) { - return 0; - } - if (targetStart >= target.length) { - throw new RangeError('targetStart out of bounds'); - } - if (sourceStart >= this.length) { - throw new RangeError('sourceStart out of bounds'); - } - if (sourceEnd > this.length) { - throw new RangeError('sourceEnd out of bounds'); - } - var bytesCopied = Math.min(sourceEnd - sourceStart, target.length - targetStart, this.length - sourceStart); - - for (var i = 0; i < bytesCopied; i++) { - target.writeUInt8(this.readUInt8(sourceStart + i), targetStart + i); - } - return bytesCopied; - }; - - /** - * Returns a slice of this buffer. - * @param {number} [start=0] - Index to start slicing from - * @param {number} [end=this.length] - Index to stop slicing at - * @return {Buffer} A new buffer which references the same - * memory as the old, but offset and cropped by the start (defaults to 0) and - * end (defaults to buffer.length) indexes. Negative indexes start from the end - * of the buffer. - */ - Buffer.prototype.slice = function (start, end) { - if (typeof start === "undefined") { start = 0; } - if (typeof end === "undefined") { end = this.length; } - // Translate negative indices to positive ones. - if (start < 0) { - start += this.length; - if (start < 0) { - start = 0; - } - } - if (end < 0) { - end += this.length; - if (end < 0) { - end = 0; - } - } - if (end > this.length) { - end = this.length; - } - if (start > end) { - start = end; - } - - // Sanity check. - if (start < 0 || end < 0 || start >= this.length || end > this.length) { - throw new Error("Invalid slice indices."); - } - - // Create a new buffer backed by the same BufferCore. - return new Buffer(this.data, start + this.offset, end + this.offset); - }; - - /** - * [NONSTANDARD] A copy-based version of Buffer.slice. - */ - Buffer.prototype.sliceCopy = function (start, end) { - if (typeof start === "undefined") { start = 0; } - if (typeof end === "undefined") { end = this.length; } - // Translate negative indices to positive ones. - if (start < 0) { - start += this.length; - if (start < 0) { - start = 0; - } - } - if (end < 0) { - end += this.length; - if (end < 0) { - end = 0; - } - } - if (end > this.length) { - end = this.length; - } - if (start > end) { - start = end; - } - - // Sanity check. - if (start < 0 || end < 0 || start >= this.length || end > this.length) { - throw new Error("Invalid slice indices."); - } - - // Copy the BufferCore. - return new Buffer(this.data.copy(start + this.offset, end + this.offset)); - }; - - /** - * Fills the buffer with the specified value. If the offset and end are not - * given it will fill the entire buffer. - * @param {(string|number)} value - The value to fill the buffer with - * @param {number} [offset=0] - * @param {number} [end=this.length] - */ - Buffer.prototype.fill = function (value, offset, end) { - if (typeof offset === "undefined") { offset = 0; } - if (typeof end === "undefined") { end = this.length; } - var i; - var valType = typeof value; - switch (valType) { - case "string": - // Trim to a byte. - value = value.charCodeAt(0) & 0xFF; - break; - case "number": - break; - default: - throw new Error('Invalid argument to fill.'); - } - offset += this.offset; - end += this.offset; - this.data.fill(value, offset, end); - }; - - Buffer.prototype.readUInt8 = function (offset, noAssert) { - if (typeof noAssert === "undefined") { noAssert = false; } - offset += this.offset; - return this.data.readUInt8(offset); - }; - - Buffer.prototype.readUInt16LE = function (offset, noAssert) { - if (typeof noAssert === "undefined") { noAssert = false; } - offset += this.offset; - return this.data.readUInt16LE(offset); - }; - - Buffer.prototype.readUInt16BE = function (offset, noAssert) { - if (typeof noAssert === "undefined") { noAssert = false; } - offset += this.offset; - return this.data.readUInt16BE(offset); - }; - - Buffer.prototype.readUInt32LE = function (offset, noAssert) { - if (typeof noAssert === "undefined") { noAssert = false; } - offset += this.offset; - return this.data.readUInt32LE(offset); - }; - - Buffer.prototype.readUInt32BE = function (offset, noAssert) { - if (typeof noAssert === "undefined") { noAssert = false; } - offset += this.offset; - return this.data.readUInt32BE(offset); - }; - - Buffer.prototype.readInt8 = function (offset, noAssert) { - if (typeof noAssert === "undefined") { noAssert = false; } - offset += this.offset; - return this.data.readInt8(offset); - }; - - Buffer.prototype.readInt16LE = function (offset, noAssert) { - if (typeof noAssert === "undefined") { noAssert = false; } - offset += this.offset; - return this.data.readInt16LE(offset); - }; - - Buffer.prototype.readInt16BE = function (offset, noAssert) { - if (typeof noAssert === "undefined") { noAssert = false; } - offset += this.offset; - return this.data.readInt16BE(offset); - }; - - Buffer.prototype.readInt32LE = function (offset, noAssert) { - if (typeof noAssert === "undefined") { noAssert = false; } - offset += this.offset; - return this.data.readInt32LE(offset); - }; - - Buffer.prototype.readInt32BE = function (offset, noAssert) { - if (typeof noAssert === "undefined") { noAssert = false; } - offset += this.offset; - return this.data.readInt32BE(offset); - }; - - Buffer.prototype.readFloatLE = function (offset, noAssert) { - if (typeof noAssert === "undefined") { noAssert = false; } - offset += this.offset; - return this.data.readFloatLE(offset); - }; - - Buffer.prototype.readFloatBE = function (offset, noAssert) { - if (typeof noAssert === "undefined") { noAssert = false; } - offset += this.offset; - return this.data.readFloatBE(offset); - }; - - Buffer.prototype.readDoubleLE = function (offset, noAssert) { - if (typeof noAssert === "undefined") { noAssert = false; } - offset += this.offset; - return this.data.readDoubleLE(offset); - }; - - Buffer.prototype.readDoubleBE = function (offset, noAssert) { - if (typeof noAssert === "undefined") { noAssert = false; } - offset += this.offset; - return this.data.readDoubleBE(offset); - }; - - Buffer.prototype.writeUInt8 = function (value, offset, noAssert) { - if (typeof noAssert === "undefined") { noAssert = false; } - offset += this.offset; - this.data.writeUInt8(offset, value); - }; - - Buffer.prototype.writeUInt16LE = function (value, offset, noAssert) { - if (typeof noAssert === "undefined") { noAssert = false; } - offset += this.offset; - this.data.writeUInt16LE(offset, value); - }; - - Buffer.prototype.writeUInt16BE = function (value, offset, noAssert) { - if (typeof noAssert === "undefined") { noAssert = false; } - offset += this.offset; - this.data.writeUInt16BE(offset, value); - }; - - Buffer.prototype.writeUInt32LE = function (value, offset, noAssert) { - if (typeof noAssert === "undefined") { noAssert = false; } - offset += this.offset; - this.data.writeUInt32LE(offset, value); - }; - - Buffer.prototype.writeUInt32BE = function (value, offset, noAssert) { - if (typeof noAssert === "undefined") { noAssert = false; } - offset += this.offset; - this.data.writeUInt32BE(offset, value); - }; - - Buffer.prototype.writeInt8 = function (value, offset, noAssert) { - if (typeof noAssert === "undefined") { noAssert = false; } - offset += this.offset; - this.data.writeInt8(offset, value); - }; - - Buffer.prototype.writeInt16LE = function (value, offset, noAssert) { - if (typeof noAssert === "undefined") { noAssert = false; } - offset += this.offset; - this.data.writeInt16LE(offset, value); - }; - - Buffer.prototype.writeInt16BE = function (value, offset, noAssert) { - if (typeof noAssert === "undefined") { noAssert = false; } - offset += this.offset; - this.data.writeInt16BE(offset, value); - }; - - Buffer.prototype.writeInt32LE = function (value, offset, noAssert) { - if (typeof noAssert === "undefined") { noAssert = false; } - offset += this.offset; - this.data.writeInt32LE(offset, value); - }; - - Buffer.prototype.writeInt32BE = function (value, offset, noAssert) { - if (typeof noAssert === "undefined") { noAssert = false; } - offset += this.offset; - this.data.writeInt32BE(offset, value); - }; - - Buffer.prototype.writeFloatLE = function (value, offset, noAssert) { - if (typeof noAssert === "undefined") { noAssert = false; } - offset += this.offset; - this.data.writeFloatLE(offset, value); - }; - - Buffer.prototype.writeFloatBE = function (value, offset, noAssert) { - if (typeof noAssert === "undefined") { noAssert = false; } - offset += this.offset; - this.data.writeFloatBE(offset, value); - }; - - Buffer.prototype.writeDoubleLE = function (value, offset, noAssert) { - if (typeof noAssert === "undefined") { noAssert = false; } - offset += this.offset; - this.data.writeDoubleLE(offset, value); - }; - - Buffer.prototype.writeDoubleBE = function (value, offset, noAssert) { - if (typeof noAssert === "undefined") { noAssert = false; } - offset += this.offset; - this.data.writeDoubleBE(offset, value); - }; - - ///**************************STATIC METHODS********************************/// - /** - * Checks if enc is a valid string encoding type. - * @param {string} enc - Name of a string encoding type. - * @return {boolean} Whether or not enc is a valid encoding type. - */ - Buffer.isEncoding = function (enc) { - try { - string_util.FindUtil(enc); - } catch (e) { - return false; - } - return true; - }; - - /** - * Tests if obj is a Buffer. - * @param {object} obj - An arbitrary object - * @return {boolean} True if this object is a Buffer. - */ - Buffer.isBuffer = function (obj) { - return obj instanceof Buffer; - }; - - /** - * Gives the actual byte length of a string. This is not the same as - * String.prototype.length since that returns the number of characters in a - * string. - * @param {string} str - The string to get the byte length of - * @param {string} [encoding=utf8] - Character encoding of the string - * @return {number} The number of bytes in the string - */ - Buffer.byteLength = function (str, encoding) { - if (typeof encoding === "undefined") { encoding = 'utf8'; } - var strUtil = string_util.FindUtil(encoding); - return strUtil.byteLength(str); - }; - - /** - * Returns a buffer which is the result of concatenating all the buffers in the - * list together. - * If the list has no items, or if the totalLength is 0, then it returns a - * zero-length buffer. - * If the list has exactly one item, then the first item of the list is - * returned. - * If the list has more than one item, then a new Buffer is created. - * If totalLength is not provided, it is read from the buffers in the list. - * However, this adds an additional loop to the function, so it is faster to - * provide the length explicitly. - * @param {Buffer[]} list - List of Buffer objects to concat - * @param {number} [totalLength] - Total length of the buffers when concatenated - * @return {Buffer} - */ - Buffer.concat = function (list, totalLength) { - var item; - if (list.length === 0 || totalLength === 0) { - return new Buffer(0); - } else if (list.length === 1) { - return list[0]; - } else { - if (totalLength == null) { - // Calculate totalLength - totalLength = 0; - for (var i = 0; i < list.length; i++) { - item = list[i]; - totalLength += item.length; - } - } - var buf = new Buffer(totalLength); - var curPos = 0; - for (var j = 0; j < list.length; j++) { - item = list[j]; - curPos += item.copy(buf, curPos); - } - return buf; - } - }; - return Buffer; - })(); - exports.Buffer = Buffer; - - // Type-check the class. - var _ = Buffer; -}); -//# sourceMappingURL=buffer.js.map -; -define('core/file_flag',["require", "exports", './api_error'], function(require, exports, api_error) { - /** - * @class - */ - (function (ActionType) { - // Indicates that the code should not do anything. - ActionType[ActionType["NOP"] = 0] = "NOP"; - - // Indicates that the code should throw an exception. - ActionType[ActionType["THROW_EXCEPTION"] = 1] = "THROW_EXCEPTION"; - - // Indicates that the code should truncate the file, but only if it is a file. - ActionType[ActionType["TRUNCATE_FILE"] = 2] = "TRUNCATE_FILE"; - - // Indicates that the code should create the file. - ActionType[ActionType["CREATE_FILE"] = 3] = "CREATE_FILE"; - })(exports.ActionType || (exports.ActionType = {})); - var ActionType = exports.ActionType; - - /** - * Represents one of the following file flags. A convenience object. - * - * * `'r'` - Open file for reading. An exception occurs if the file does not exist. - * * `'r+'` - Open file for reading and writing. An exception occurs if the file does not exist. - * * `'rs'` - Open file for reading in synchronous mode. Instructs the filesystem to not cache writes. - * * `'rs+'` - Open file for reading and writing, and opens the file in synchronous mode. - * * `'w'` - Open file for writing. The file is created (if it does not exist) or truncated (if it exists). - * * `'wx'` - Like 'w' but opens the file in exclusive mode. - * * `'w+'` - Open file for reading and writing. The file is created (if it does not exist) or truncated (if it exists). - * * `'wx+'` - Like 'w+' but opens the file in exclusive mode. - * * `'a'` - Open file for appending. The file is created if it does not exist. - * * `'ax'` - Like 'a' but opens the file in exclusive mode. - * * `'a+'` - Open file for reading and appending. The file is created if it does not exist. - * * `'ax+'` - Like 'a+' but opens the file in exclusive mode. - * - * Exclusive mode ensures that the file path is newly created. - * @class - */ - var FileFlag = (function () { - /** - * This should never be called directly. - * @param [String] modeStr The string representing the mode - * @throw [BrowserFS.ApiError] when the mode string is invalid - */ - function FileFlag(flagStr) { - this.flagStr = flagStr; - if (FileFlag.validFlagStrs.indexOf(flagStr) < 0) { - throw new api_error.ApiError(9 /* EINVAL */, "Invalid flag: " + flagStr); - } - } - /** - * Get an object representing the given file mode. - * @param [String] modeStr The string representing the mode - * @return [BrowserFS.FileMode] The FileMode object representing the mode - * @throw [BrowserFS.ApiError] when the mode string is invalid - */ - FileFlag.getFileFlag = function (flagStr) { - // Check cache first. - if (FileFlag.flagCache.hasOwnProperty(flagStr)) { - return FileFlag.flagCache[flagStr]; - } - return FileFlag.flagCache[flagStr] = new FileFlag(flagStr); - }; - - /** - * Returns true if the file is readable. - * @return [Boolean] - */ - FileFlag.prototype.isReadable = function () { - return this.flagStr.indexOf('r') !== -1 || this.flagStr.indexOf('+') !== -1; - }; - - /** - * Returns true if the file is writeable. - * @return [Boolean] - */ - FileFlag.prototype.isWriteable = function () { - return this.flagStr.indexOf('w') !== -1 || this.flagStr.indexOf('a') !== -1 || this.flagStr.indexOf('+') !== -1; - }; - - /** - * Returns true if the file mode should truncate. - * @return [Boolean] - */ - FileFlag.prototype.isTruncating = function () { - return this.flagStr.indexOf('w') !== -1; - }; - - /** - * Returns true if the file is appendable. - * @return [Boolean] - */ - FileFlag.prototype.isAppendable = function () { - return this.flagStr.indexOf('a') !== -1; - }; - - /** - * Returns true if the file is open in synchronous mode. - * @return [Boolean] - */ - FileFlag.prototype.isSynchronous = function () { - return this.flagStr.indexOf('s') !== -1; - }; - - /** - * Returns true if the file is open in exclusive mode. - * @return [Boolean] - */ - FileFlag.prototype.isExclusive = function () { - return this.flagStr.indexOf('x') !== -1; - }; - - /** - * Returns one of the static fields on this object that indicates the - * appropriate response to the path existing. - * @return [Number] - */ - FileFlag.prototype.pathExistsAction = function () { - if (this.isExclusive()) { - return 1 /* THROW_EXCEPTION */; - } else if (this.isTruncating()) { - return 2 /* TRUNCATE_FILE */; - } else { - return 0 /* NOP */; - } - }; - - /** - * Returns one of the static fields on this object that indicates the - * appropriate response to the path not existing. - * @return [Number] - */ - FileFlag.prototype.pathNotExistsAction = function () { - if ((this.isWriteable() || this.isAppendable()) && this.flagStr !== 'r+') { - return 3 /* CREATE_FILE */; - } else { - return 1 /* THROW_EXCEPTION */; - } - }; - FileFlag.flagCache = {}; - - FileFlag.validFlagStrs = ['r', 'r+', 'rs', 'rs+', 'w', 'wx', 'w+', 'wx+', 'a', 'ax', 'a+', 'ax+']; - return FileFlag; - })(); - exports.FileFlag = FileFlag; -}); -//# sourceMappingURL=file_flag.js.map -; -var __extends = this.__extends || function (d, b) { - for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; - function __() { this.constructor = d; } - __.prototype = b.prototype; - d.prototype = new __(); -}; -define('core/node_eventemitter',["require", "exports", './buffer', './api_error'], function(require, exports, buffer, api_error) { - var Buffer = buffer.Buffer; - var ApiError = api_error.ApiError; - var ErrorCode = api_error.ErrorCode; - - /** - * Internal class. Represents a buffered event. - */ - var BufferedEvent = (function () { - function BufferedEvent(data, encoding, cb) { - this.data = data; - this.encoding = encoding; - this.cb = cb; - this.size = typeof (data) !== 'string' ? data.length : Buffer.byteLength(data, encoding != null ? encoding : undefined); - - // If data is a buffer, we need to copy it. - if (typeof (this.data) !== 'string') { - this.data = this.data.sliceCopy(); - } - } - BufferedEvent.prototype.getData = function (encoding) { - if (encoding == null) { - if (typeof (this.data) === 'string') { - return new Buffer(this.data, this.encoding != null ? this.encoding : undefined); - } else { - return this.data; - } - } else { - if (typeof (this.data) === 'string') { - if (encoding === this.encoding) { - return this.data; - } else { - return (new Buffer(this.data, this.encoding != null ? this.encoding : undefined)).toString(encoding); - } - } else { - return this.data.toString(encoding); - } - } - }; - return BufferedEvent; - })(); - - /** - * Provides an abstract implementation of the EventEmitter interface. - */ - var AbstractEventEmitter = (function () { - function AbstractEventEmitter() { - this._listeners = {}; - this.maxListeners = 10; - } - /** - * Adds a listener for the particular event. - */ - AbstractEventEmitter.prototype.addListener = function (event, listener) { - if (typeof (this._listeners[event]) === 'undefined') { - this._listeners[event] = []; - } - if (this._listeners[event].push(listener) > this.maxListeners) { - process.stdout.write("Warning: Event " + event + " has more than " + this.maxListeners + " listeners.\n"); - } - this.emit('newListener', event, listener); - return this; - }; - - /** - * Adds a listener for the particular event. - */ - AbstractEventEmitter.prototype.on = function (event, listener) { - return this.addListener(event, listener); - }; - - /** - * Adds a listener for the particular event that fires only once. - */ - AbstractEventEmitter.prototype.once = function (event, listener) { - // Create a new callback that will only fire once. - var fired = false, newListener = function () { - this.removeListener(event, newListener); - - if (!fired) { - fired = true; - listener.apply(this, arguments); - } - }; - return this.addListener(event, newListener); - }; - - /** - * Emits the 'removeListener' event for the specified listeners. - */ - AbstractEventEmitter.prototype._emitRemoveListener = function (event, listeners) { - var i; - - // Only emit the event if someone is listening. - if (this._listeners['removeListener'] && this._listeners['removeListener'].length > 0) { - for (i = 0; i < listeners.length; i++) { - this.emit('removeListener', event, listeners[i]); - } - } - }; - - /** - * Removes the particular listener for the given event. - */ - AbstractEventEmitter.prototype.removeListener = function (event, listener) { - var listeners = this._listeners[event]; - if (typeof (listeners) !== 'undefined') { - // Remove listener, if present. - var idx = listeners.indexOf(listener); - if (idx > -1) { - listeners.splice(idx, 1); - } - } - this.emit('removeListener', event, listener); - return this; - }; - - /** - * Removes all listeners, or those of the specified event. - */ - AbstractEventEmitter.prototype.removeAllListeners = function (event) { - var removed, keys, i; - if (typeof (event) !== 'undefined') { - removed = this._listeners[event]; - - // Clear one event. - this._listeners[event] = []; - this._emitRemoveListener(event, removed); - } else { - // Clear all events. - keys = Object.keys(this._listeners); - for (i = 0; i < keys.length; i++) { - this.removeAllListeners(keys[i]); - } - } - return this; - }; - - /** - * EventEmitters print a warning when an event has greater than this specified - * number of listeners. - */ - AbstractEventEmitter.prototype.setMaxListeners = function (n) { - this.maxListeners = n; - }; - - /** - * Returns the listeners for the given event. - */ - AbstractEventEmitter.prototype.listeners = function (event) { - if (typeof (this._listeners[event]) === 'undefined') { - this._listeners[event] = []; - } - - // Return a *copy* of our internal structure. - return this._listeners[event].slice(0); - }; - - /** - * Emits the specified event to all listeners of the particular event. - */ - AbstractEventEmitter.prototype.emit = function (event) { - var args = []; - for (var _i = 0; _i < (arguments.length - 1); _i++) { - args[_i] = arguments[_i + 1]; - } - var listeners = this._listeners[event], rv = false; - if (typeof (listeners) !== 'undefined') { - var i; - for (i = 0; i < listeners.length; i++) { - rv = true; - listeners[i].apply(this, args); - } - } - return rv; - }; - return AbstractEventEmitter; - })(); - exports.AbstractEventEmitter = AbstractEventEmitter; - - /** - * Provides an abstract implementation of the WritableStream and ReadableStream - * interfaces. - * @todo: Check readable/writable status. - */ - var AbstractDuplexStream = (function (_super) { - __extends(AbstractDuplexStream, _super); - /** - * Abstract stream implementation that can be configured to be readable and/or - * writable. - */ - function AbstractDuplexStream(writable, readable) { - _super.call(this); - this.writable = writable; - this.readable = readable; - /** - * How should the data output be encoded? 'null' means 'Buffer'. - */ - this.encoding = null; - /** - * Is this stream currently flowing (resumed) or non-flowing (paused)? - */ - this.flowing = false; - /** - * Event buffer. Simply queues up all write requests. - */ - this.buffer = []; - /** - * Once set, the stream is closed. Emitted once 'buffer' is empty. - */ - this.endEvent = null; - /** - * Has the stream ended? - */ - this.ended = false; - /** - * The last time we checked, was the buffer empty? - * We emit 'readable' events when this transitions from 'true' -> 'false'. - */ - this.drained = true; - } - /** - * Adds a listener for the particular event. - * Implemented here so that we can capture data EventListeners, which trigger - * us to 'resume'. - */ - AbstractDuplexStream.prototype.addListener = function (event, listener) { - var rv = _super.prototype.addListener.call(this, event, listener), _this = this; - if (event === 'data' && !this.flowing) { - this.resume(); - } else if (event === 'readable' && this.buffer.length > 0) { - setTimeout(function () { - _this.emit('readable'); - }, 0); - } - return rv; - }; - - /** - * Helper function for 'write' and 'end' functions. - */ - AbstractDuplexStream.prototype._processArgs = function (data, arg2, arg3) { - if (typeof (arg2) === 'string') { - // data, encoding, cb? - return new BufferedEvent(data, arg2, arg3); - } else { - // data, cb? - return new BufferedEvent(data, null, arg2); - } - }; - - /** - * If flowing, this will process pending events. - */ - AbstractDuplexStream.prototype._processEvents = function () { - var drained = this.buffer.length === 0; - if (this.drained !== drained) { - if (this.drained) { - // Went from drained to not drained. New stuff is available. - // @todo: Is this event relevant in flowing mode? - this.emit('readable'); - } - } - - if (this.flowing && this.buffer.length !== 0) { - this.emit('data', this.read()); - } - - // Are we drained? Check. - this.drained = this.buffer.length === 0; - }; - - /** - * Emits the given buffered event. - */ - AbstractDuplexStream.prototype.emitEvent = function (type, event) { - this.emit(type, event.getData(this.encoding)); - if (event.cb) { - event.cb(); - } - }; - - AbstractDuplexStream.prototype.write = function (data, arg2, arg3) { - if (this.ended) { - throw new ApiError(0 /* EPERM */, 'Cannot write to an ended stream.'); - } - var event = this._processArgs(data, arg2, arg3); - this._push(event); - return this.flowing; - }; - - AbstractDuplexStream.prototype.end = function (data, arg2, arg3) { - if (this.ended) { - throw new ApiError(0 /* EPERM */, 'Stream is already closed.'); - } - var event = this._processArgs(data, arg2, arg3); - this.ended = true; - this.endEvent = event; - this._processEvents(); - }; - - /**** Readable Interface ****/ - /** - * Read a given number of bytes from the buffer. Should only be called in - * non-flowing mode. - * If we do not have `size` bytes available, return null. - */ - AbstractDuplexStream.prototype.read = function (size) { - var events = [], eventsCbs = [], lastCb, eventsSize = 0, event, buff, trueSize, i = 0, sizeUnspecified = typeof (size) !== 'number'; - - // I do this so I do not need to specialize the loop below. - if (sizeUnspecified) - size = 4294967295; - - for (i = 0; i < this.buffer.length && eventsSize < size; i++) { - event = this.buffer[i]; - events.push(event.getData()); - if (event.cb) { - eventsCbs.push(event.cb); - } - eventsSize += event.size; - lastCb = event.cb; - } - - if (!sizeUnspecified && eventsSize < size) { - // For some reason, the Node stream API specifies that we either return - // 'size' bytes of data, or nothing at all. - return null; - } - - // Remove all of the events we are processing from the buffer. - this.buffer = this.buffer.slice(events.length); - - // The 'true size' of the final event we're going to send out. - trueSize = eventsSize > size ? size : eventsSize; - - // Concat at all of the events into one buffer. - buff = Buffer.concat(events); - if (eventsSize > size) { - // If last event had a cb, ignore it -- we trigger it when that *entire* - // write finishes. - if (lastCb) - eventsCbs.pop(); - - // Make a new event for the remaining data. - this._push(new BufferedEvent(buff.slice(size), null, lastCb)); - } - - // Schedule the relevant cbs to fire *after* we've returned these values. - if (eventsCbs.length > 0) { - setTimeout(function () { - var i; - for (i = 0; i < eventsCbs.length; i++) { - eventsCbs[i](); - } - }, 0); - } - - // If we're at the end of the buffer and an endEvent is specified, schedule - // the event to fire. - if (this.ended && this.buffer.length === 0 && this.endEvent !== null) { - var endEvent = this.endEvent, _this = this; - - // Erase it so we don't accidentally trigger it again. - this.endEvent = null; - setTimeout(function () { - _this.emitEvent('end', endEvent); - }, 0); - } - - // Return in correct encoding. - if (events.length === 0) { - // Buffer was empty. We're supposed to return 'null', as opposed to an - // empty buffer or string. - // [BFS] Emit a '_read' event to signal that maybe the write-end of this - // should push some data into the pipe. - this.emit('_read'); - return null; - } else if (this.encoding === null) { - return buff.slice(0, trueSize); - } else { - return buff.toString(this.encoding, 0, trueSize); - } - }; - - /** - * Set the encoding for the 'data' event. - */ - AbstractDuplexStream.prototype.setEncoding = function (encoding) { - this.encoding = encoding; - }; - - /** - * Pause the stream. - */ - AbstractDuplexStream.prototype.pause = function () { - this.flowing = false; - }; - - /** - * Resume the stream. - */ - AbstractDuplexStream.prototype.resume = function () { - this.flowing = true; - - // Process any buffered writes. - this._processEvents(); - }; - - /** - * Pipe a readable stream into a writable stream. Currently unimplemented. - */ - AbstractDuplexStream.prototype.pipe = function (destination, options) { - throw new ApiError(0 /* EPERM */, "Unimplemented."); - }; - AbstractDuplexStream.prototype.unpipe = function (destination) { - }; - - AbstractDuplexStream.prototype.unshift = function (chunk) { - if (this.ended) { - throw new ApiError(0 /* EPERM */, "Stream has ended."); - } - this.buffer.unshift(new BufferedEvent(chunk, this.encoding)); - this._processEvents(); - }; - - /** - * 'Push' the given piece of data to the back of the buffer. - * Returns true if the event was sent out, false if buffered. - */ - AbstractDuplexStream.prototype._push = function (event) { - this.buffer.push(event); - this._processEvents(); - }; - - /** - * Enables backwards-compatibility with older versions of Node and their - * stream interface. Unimplemented. - */ - AbstractDuplexStream.prototype.wrap = function (stream) { - throw new ApiError(0 /* EPERM */, "Unimplemented."); - }; - return AbstractDuplexStream; - })(AbstractEventEmitter); - exports.AbstractDuplexStream = AbstractDuplexStream; -}); -//# sourceMappingURL=node_eventemitter.js.map -; -var __extends = this.__extends || function (d, b) { - for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; - function __() { this.constructor = d; } - __.prototype = b.prototype; - d.prototype = new __(); -}; -define('core/node_process',["require", "exports", './node_eventemitter'], function(require, exports, eventemitter) { - var path = null; - - var TTY = (function (_super) { - __extends(TTY, _super); - function TTY() { - _super.call(this, true, true); - this.isRaw = false; - this.columns = 80; - this.rows = 120; - this.isTTY = true; - } - /** - * Set read mode to 'true' to enable raw mode. - */ - TTY.prototype.setReadMode = function (mode) { - if (this.isRaw !== mode) { - this.isRaw = mode; - - // [BFS] TTY implementations can use this to change their event emitting - // patterns. - this.emit('modeChange'); - } - }; - - /** - * [BFS] Update the number of columns available on the terminal. - */ - TTY.prototype.changeColumns = function (columns) { - if (columns !== this.columns) { - this.columns = columns; - - // Resize event. - this.emit('resize'); - } - }; - - /** - * [BFS] Update the number of rows available on the terminal. - */ - TTY.prototype.changeRows = function (rows) { - if (rows !== this.rows) { - this.rows = rows; - - // Resize event. - this.emit('resize'); - } - }; - - /** - * Returns 'true' if the given object is a TTY. - */ - TTY.isatty = function (fd) { - return fd instanceof TTY; - }; - return TTY; - })(eventemitter.AbstractDuplexStream); - exports.TTY = TTY; - - /** - * Partial implementation of Node's `process` module. - * We implement the portions that are relevant for the filesystem. - * @see http://nodejs.org/api/process.html - * @class - */ - var Process = (function () { - function Process() { - this.startTime = Date.now(); - this._cwd = '/'; - /** - * Returns what platform you are running on. - * @return [String] - */ - this.platform = 'browser'; - this.argv = []; - this.stdout = new TTY(); - this.stderr = new TTY(); - this.stdin = new TTY(); - } - /** - * Changes the current working directory. - * - * **Note**: BrowserFS does not validate that the directory actually exists. - * - * @example Usage example - * console.log('Starting directory: ' + process.cwd()); - * process.chdir('/tmp'); - * console.log('New directory: ' + process.cwd()); - * @param [String] dir The directory to change to. - */ - Process.prototype.chdir = function (dir) { - // XXX: Circular dependency hack. - if (path === null) { - path = require('./node_path').path; - } - this._cwd = path.resolve(dir); - }; - - /** - * Returns the current working directory. - * @example Usage example - * console.log('Current directory: ' + process.cwd()); - * @return [String] The current working directory. - */ - Process.prototype.cwd = function () { - return this._cwd; - }; - - /** - * Number of seconds BrowserFS has been running. - * @return [Number] - */ - Process.prototype.uptime = function () { - return ((Date.now() - this.startTime) / 1000) | 0; - }; - return Process; - })(); - exports.Process = Process; - - // process is a singleton. - exports.process = new Process(); -}); -//# sourceMappingURL=node_process.js.map -; -define('core/node_path',["require", "exports", './node_process'], function(require, exports, node_process) { - var process = node_process.process; - - /** - * Emulates Node's `path` module. This module contains utilities for handling and - * transforming file paths. **All** of these methods perform only string - * transformations. The file system is not consulted to check whether paths are - * valid. - * @see http://nodejs.org/api/path.html - * @class - */ - var path = (function () { - function path() { - } - /** - * Normalize a string path, taking care of '..' and '.' parts. - * - * When multiple slashes are found, they're replaced by a single one; when the path contains a trailing slash, it is preserved. On Windows backslashes are used. - * @example Usage example - * path.normalize('/foo/bar//baz/asdf/quux/..') - * // returns - * '/foo/bar/baz/asdf' - * @param [String] p The path to normalize. - * @return [String] - */ - path.normalize = function (p) { - // Special case: '' -> '.' - if (p === '') { - p = '.'; - } - - // It's very important to know if the path is relative or not, since it - // changes how we process .. and reconstruct the split string. - var absolute = p.charAt(0) === path.sep; - - // Remove repeated //s - p = path._removeDuplicateSeps(p); - - // Try to remove as many '../' as possible, and remove '.' completely. - var components = p.split(path.sep); - var goodComponents = []; - for (var idx = 0; idx < components.length; idx++) { - var c = components[idx]; - if (c === '.') { - continue; - } else if (c === '..' && (absolute || (!absolute && goodComponents.length > 0 && goodComponents[0] !== '..'))) { - // In the absolute case: Path is relative to root, so we may pop even if - // goodComponents is empty (e.g. /../ => /) - // In the relative case: We're getting rid of a directory that preceded - // it (e.g. /foo/../bar -> /bar) - goodComponents.pop(); - } else { - goodComponents.push(c); - } - } - - // Add in '.' when it's a relative path with no other nonempty components. - // Possible results: '.' and './' (input: [''] or []) - // @todo Can probably simplify this logic. - if (!absolute && goodComponents.length < 2) { - switch (goodComponents.length) { - case 1: - if (goodComponents[0] === '') { - goodComponents.unshift('.'); - } - break; - default: - goodComponents.push('.'); - } - } - p = goodComponents.join(path.sep); - if (absolute && p.charAt(0) !== path.sep) { - p = path.sep + p; - } - return p; - }; - - /** - * Join all arguments together and normalize the resulting path. - * - * Arguments must be strings. - * @example Usage - * path.join('/foo', 'bar', 'baz/asdf', 'quux', '..') - * // returns - * '/foo/bar/baz/asdf' - * - * path.join('foo', {}, 'bar') - * // throws exception - * TypeError: Arguments to path.join must be strings - * @param [String,...] paths Each component of the path - * @return [String] - */ - path.join = function () { - var paths = []; - for (var _i = 0; _i < (arguments.length - 0); _i++) { - paths[_i] = arguments[_i + 0]; - } - // Required: Prune any non-strings from the path. I also prune empty segments - // so we can do a simple join of the array. - var processed = []; - for (var i = 0; i < paths.length; i++) { - var segment = paths[i]; - if (typeof segment !== 'string') { - throw new TypeError("Invalid argument type to path.join: " + (typeof segment)); - } else if (segment !== '') { - processed.push(segment); - } - } - return path.normalize(processed.join(path.sep)); - }; - - /** - * Resolves to to an absolute path. - * - * If to isn't already absolute from arguments are prepended in right to left - * order, until an absolute path is found. If after using all from paths still - * no absolute path is found, the current working directory is used as well. - * The resulting path is normalized, and trailing slashes are removed unless - * the path gets resolved to the root directory. Non-string arguments are - * ignored. - * - * Another way to think of it is as a sequence of cd commands in a shell. - * - * path.resolve('foo/bar', '/tmp/file/', '..', 'a/../subfile') - * - * Is similar to: - * - * cd foo/bar - * cd /tmp/file/ - * cd .. - * cd a/../subfile - * pwd - * - * The difference is that the different paths don't need to exist and may also - * be files. - * @example Usage example - * path.resolve('/foo/bar', './baz') - * // returns - * '/foo/bar/baz' - * - * path.resolve('/foo/bar', '/tmp/file/') - * // returns - * '/tmp/file' - * - * path.resolve('wwwroot', 'static_files/png/', '../gif/image.gif') - * // if currently in /home/myself/node, it returns - * '/home/myself/node/wwwroot/static_files/gif/image.gif' - * @param [String,...] paths - * @return [String] - */ - path.resolve = function () { - var paths = []; - for (var _i = 0; _i < (arguments.length - 0); _i++) { - paths[_i] = arguments[_i + 0]; - } - // Monitor for invalid paths, throw out empty paths, and look for the *last* - // absolute path that we see. - var processed = []; - for (var i = 0; i < paths.length; i++) { - var p = paths[i]; - if (typeof p !== 'string') { - throw new TypeError("Invalid argument type to path.join: " + (typeof p)); - } else if (p !== '') { - // Remove anything that has occurred before this absolute path, as it - // doesn't matter. - if (p.charAt(0) === path.sep) { - processed = []; - } - processed.push(p); - } - } - - // Special: Remove trailing slash unless it's the root - var resolved = path.normalize(processed.join(path.sep)); - if (resolved.length > 1 && resolved.charAt(resolved.length - 1) === path.sep) { - return resolved.substr(0, resolved.length - 1); - } - - // Special: If it doesn't start with '/', it's relative and we need to append - // the current directory. - if (resolved.charAt(0) !== path.sep) { - // Remove ./, since we're going to append the current directory. - if (resolved.charAt(0) === '.' && (resolved.length === 1 || resolved.charAt(1) === path.sep)) { - resolved = resolved.length === 1 ? '' : resolved.substr(2); - } - - // Append the current directory, which *must* be an absolute path. - var cwd = process.cwd(); - if (resolved !== '') { - // cwd will never end in a /... unless it's the root. - resolved = this.normalize(cwd + (cwd !== '/' ? path.sep : '') + resolved); - } else { - resolved = cwd; - } - } - return resolved; - }; - - /** - * Solve the relative path from from to to. - * - * At times we have two absolute paths, and we need to derive the relative path - * from one to the other. This is actually the reverse transform of - * path.resolve, which means we see that: - * - * path.resolve(from, path.relative(from, to)) == path.resolve(to) - * - * @example Usage example - * path.relative('C:\\orandea\\test\\aaa', 'C:\\orandea\\impl\\bbb') - * // returns - * '..\\..\\impl\\bbb' - * - * path.relative('/data/orandea/test/aaa', '/data/orandea/impl/bbb') - * // returns - * '../../impl/bbb' - * @param [String] from - * @param [String] to - * @return [String] - */ - path.relative = function (from, to) { - var i; - - // Alright. Let's resolve these two to absolute paths and remove any - // weirdness. - from = path.resolve(from); - to = path.resolve(to); - var fromSegs = from.split(path.sep); - var toSegs = to.split(path.sep); - - // Remove the first segment on both, as it's '' (both are absolute paths) - toSegs.shift(); - fromSegs.shift(); - - // There are two segments to this path: - // * Going *up* the directory hierarchy with '..' - // * Going *down* the directory hierarchy with foo/baz/bat. - var upCount = 0; - var downSegs = []; - - for (i = 0; i < fromSegs.length; i++) { - var seg = fromSegs[i]; - if (seg === toSegs[i]) { - continue; - } - - // The rest of 'from', including the current element, indicates how many - // directories we need to go up. - upCount = fromSegs.length - i; - break; - } - - // The rest of 'to' indicates where we need to change to. We place this - // outside of the loop, as toSegs.length may be greater than fromSegs.length. - downSegs = toSegs.slice(i); - - // Special case: If 'from' is '/' - if (fromSegs.length === 1 && fromSegs[0] === '') { - upCount = 0; - } - - // upCount can't be greater than the number of fromSegs - // (cd .. from / is still /) - if (upCount > fromSegs.length) { - upCount = fromSegs.length; - } - - // Create the final string! - var rv = ''; - for (i = 0; i < upCount; i++) { - rv += '../'; - } - rv += downSegs.join(path.sep); - - // Special case: Remove trailing '/'. Happens if it's all up and no down. - if (rv.length > 1 && rv.charAt(rv.length - 1) === path.sep) { - rv = rv.substr(0, rv.length - 1); - } - return rv; - }; - - /** - * Return the directory name of a path. Similar to the Unix `dirname` command. - * - * Note that BrowserFS does not validate if the path is actually a valid - * directory. - * @example Usage example - * path.dirname('/foo/bar/baz/asdf/quux') - * // returns - * '/foo/bar/baz/asdf' - * @param [String] p The path to get the directory name of. - * @return [String] - */ - path.dirname = function (p) { - // We get rid of //, but we don't modify anything else (e.g. any extraneous . - // and ../ are kept intact) - p = path._removeDuplicateSeps(p); - var absolute = p.charAt(0) === path.sep; - var sections = p.split(path.sep); - - // Do 1 if it's /foo/bar, 2 if it's /foo/bar/ - if (sections.pop() === '' && sections.length > 0) { - sections.pop(); - } - if (sections.length > 1) { - return sections.join(path.sep); - } else if (absolute) { - return path.sep; - } else { - return '.'; - } - }; - - /** - * Return the last portion of a path. Similar to the Unix basename command. - * @example Usage example - * path.basename('/foo/bar/baz/asdf/quux.html') - * // returns - * 'quux.html' - * - * path.basename('/foo/bar/baz/asdf/quux.html', '.html') - * // returns - * 'quux' - * @param [String] p - * @param [String?] ext - * @return [String] - */ - path.basename = function (p, ext) { - if (typeof ext === "undefined") { ext = ""; } - // Special case: Normalize will modify this to '.' - if (p === '') { - return p; - } - - // Normalize the string first to remove any weirdness. - p = path.normalize(p); - - // Get the last part of the string. - var sections = p.split(path.sep); - var lastPart = sections[sections.length - 1]; - - // Special case: If it's empty, then we have a string like so: foo/ - // Meaning, 'foo' is guaranteed to be a directory. - if (lastPart === '' && sections.length > 1) { - return sections[sections.length - 2]; - } - - // Remove the extension, if need be. - if (ext.length > 0) { - var lastPartExt = lastPart.substr(lastPart.length - ext.length); - if (lastPartExt === ext) { - return lastPart.substr(0, lastPart.length - ext.length); - } - } - return lastPart; - }; - - /** - * Return the extension of the path, from the last '.' to end of string in the - * last portion of the path. If there is no '.' in the last portion of the path - * or the first character of it is '.', then it returns an empty string. - * @example Usage example - * path.extname('index.html') - * // returns - * '.html' - * - * path.extname('index.') - * // returns - * '.' - * - * path.extname('index') - * // returns - * '' - * @param [String] p - * @return [String] - */ - path.extname = function (p) { - p = path.normalize(p); - var sections = p.split(path.sep); - p = sections.pop(); - - // Special case: foo/file.ext/ should return '.ext' - if (p === '' && sections.length > 0) { - p = sections.pop(); - } - if (p === '..') { - return ''; - } - var i = p.lastIndexOf('.'); - if (i === -1 || i === 0) { - return ''; - } - return p.substr(i); - }; - - /** - * Checks if the given path is an absolute path. - * - * Despite not being documented, this is a tested part of Node's path API. - * @param [String] p - * @return [Boolean] True if the path appears to be an absolute path. - */ - path.isAbsolute = function (p) { - return p.length > 0 && p.charAt(0) === path.sep; - }; - - /** - * Unknown. Undocumented. - */ - path._makeLong = function (p) { - return p; - }; - - path._removeDuplicateSeps = function (p) { - p = p.replace(this._replaceRegex, this.sep); - return p; - }; - path.sep = '/'; - - path._replaceRegex = new RegExp("//+", 'g'); - - path.delimiter = ':'; - return path; - })(); - exports.path = path; -}); -//# sourceMappingURL=node_path.js.map -; -define('core/node_fs',["require", "exports", './api_error', './file_flag', './buffer', './node_path'], function(require, exports, api_error, file_flag, buffer, node_path) { - var ApiError = api_error.ApiError; - var ErrorCode = api_error.ErrorCode; - var FileFlag = file_flag.FileFlag; - var Buffer = buffer.Buffer; - var path = node_path.path; - - /** - * Wraps a callback with a setImmediate call. - * @param [Function] cb The callback to wrap. - * @param [Number] numArgs The number of arguments that the callback takes. - * @return [Function] The wrapped callback. - */ - function wrapCb(cb, numArgs) { - if (typeof cb !== 'function') { - throw new ApiError(9 /* EINVAL */, 'Callback must be a function.'); - } - - // @todo This is used for unit testing. Maybe we should inject this logic - // dynamically rather than bundle it in 'production' code. - if (typeof __numWaiting === 'undefined') { - __numWaiting = 0; - } - __numWaiting++; - - switch (numArgs) { - case 1: - return function (arg1) { - setImmediate(function () { - __numWaiting--; - return cb(arg1); - }); - }; - case 2: - return function (arg1, arg2) { - setImmediate(function () { - __numWaiting--; - return cb(arg1, arg2); - }); - }; - case 3: - return function (arg1, arg2, arg3) { - setImmediate(function () { - __numWaiting--; - return cb(arg1, arg2, arg3); - }); - }; - default: - throw new Error('Invalid invocation of wrapCb.'); - } - } - - /** - * Checks if the fd is valid. - * @param [BrowserFS.File] fd A file descriptor (in BrowserFS, it's a File object) - * @return [Boolean, BrowserFS.ApiError] Returns `true` if the FD is OK, - * otherwise returns an ApiError. - */ - function checkFd(fd) { - if (typeof fd['write'] !== 'function') { - throw new ApiError(3 /* EBADF */, 'Invalid file descriptor.'); - } - } - - function normalizeMode(mode, def) { - switch (typeof mode) { - case 'number': - // (path, flag, mode, cb?) - return mode; - case 'string': - // (path, flag, modeString, cb?) - var trueMode = parseInt(mode, 8); - if (trueMode !== NaN) { - return trueMode; - } - - default: - return def; - } - } - - function normalizePath(p) { - // Node doesn't allow null characters in paths. - if (p.indexOf('\u0000') >= 0) { - throw new ApiError(9 /* EINVAL */, 'Path must be a string without null bytes.'); - } else if (p === '') { - throw new ApiError(9 /* EINVAL */, 'Path must not be empty.'); - } - return path.resolve(p); - } - - function normalizeOptions(options, defEnc, defFlag, defMode) { - switch (typeof options) { - case 'object': - return { - encoding: typeof options['encoding'] !== 'undefined' ? options['encoding'] : defEnc, - flag: typeof options['flag'] !== 'undefined' ? options['flag'] : defFlag, - mode: normalizeMode(options['mode'], defMode) - }; - case 'string': - return { - encoding: options, - flag: defFlag, - mode: defMode - }; - default: - return { - encoding: defEnc, - flag: defFlag, - mode: defMode - }; - } - } - - // The default callback is a NOP. - function nopCb() { - } - ; - - /** - * The node frontend to all filesystems. - * This layer handles: - * - * * Sanity checking inputs. - * * Normalizing paths. - * * Resetting stack depth for asynchronous operations which may not go through - * the browser by wrapping all input callbacks using `setImmediate`. - * * Performing the requested operation through the filesystem or the file - * descriptor, as appropriate. - * * Handling optional arguments and setting default arguments. - * @see http://nodejs.org/api/fs.html - * @class - */ - var fs = (function () { - function fs() { - } - fs._initialize = function (rootFS) { - if (!rootFS.constructor.isAvailable()) { - throw new ApiError(9 /* EINVAL */, 'Tried to instantiate BrowserFS with an unavailable file system.'); - } - return fs.root = rootFS; - }; - - fs._toUnixTimestamp = function (time) { - if (typeof time === 'number') { - return time; - } else if (time instanceof Date) { - return time.getTime() / 1000; - } - throw new Error("Cannot parse time: " + time); - }; - - /** - * **NONSTANDARD**: Grab the FileSystem instance that backs this API. - * @return [BrowserFS.FileSystem | null] Returns null if the file system has - * not been initialized. - */ - fs.getRootFS = function () { - if (fs.root) { - return fs.root; - } else { - return null; - } - }; - - // FILE OR DIRECTORY METHODS - /** - * Asynchronous rename. No arguments other than a possible exception are given - * to the completion callback. - * @param [String] oldPath - * @param [String] newPath - * @param [Function(BrowserFS.ApiError)] callback - */ - fs.rename = function (oldPath, newPath, cb) { - if (typeof cb === "undefined") { cb = nopCb; } - var newCb = wrapCb(cb, 1); - try { - fs.root.rename(normalizePath(oldPath), normalizePath(newPath), newCb); - } catch (e) { - newCb(e); - } - }; - - /** - * Synchronous rename. - * @param [String] oldPath - * @param [String] newPath - */ - fs.renameSync = function (oldPath, newPath) { - fs.root.renameSync(normalizePath(oldPath), normalizePath(newPath)); - }; - - /** - * Test whether or not the given path exists by checking with the file system. - * Then call the callback argument with either true or false. - * @example Sample invocation - * fs.exists('/etc/passwd', function (exists) { - * util.debug(exists ? "it's there" : "no passwd!"); - * }); - * @param [String] path - * @param [Function(Boolean)] callback - */ - fs.exists = function (path, cb) { - if (typeof cb === "undefined") { cb = nopCb; } - var newCb = wrapCb(cb, 1); - try { - return fs.root.exists(normalizePath(path), newCb); - } catch (e) { - // Doesn't return an error. If something bad happens, we assume it just - // doesn't exist. - return newCb(false); - } - }; - - /** - * Test whether or not the given path exists by checking with the file system. - * @param [String] path - * @return [boolean] - */ - fs.existsSync = function (path) { - try { - return fs.root.existsSync(normalizePath(path)); - } catch (e) { - // Doesn't return an error. If something bad happens, we assume it just - // doesn't exist. - return false; - } - }; - - /** - * Asynchronous `stat`. - * @param [String] path - * @param [Function(BrowserFS.ApiError, BrowserFS.node.fs.Stats)] callback - */ - fs.stat = function (path, cb) { - if (typeof cb === "undefined") { cb = nopCb; } - var newCb = wrapCb(cb, 2); - try { - return fs.root.stat(normalizePath(path), false, newCb); - } catch (e) { - return newCb(e, null); - } - }; - - /** - * Synchronous `stat`. - * @param [String] path - * @return [BrowserFS.node.fs.Stats] - */ - fs.statSync = function (path) { - return fs.root.statSync(normalizePath(path), false); - }; - - /** - * Asynchronous `lstat`. - * `lstat()` is identical to `stat()`, except that if path is a symbolic link, - * then the link itself is stat-ed, not the file that it refers to. - * @param [String] path - * @param [Function(BrowserFS.ApiError, BrowserFS.node.fs.Stats)] callback - */ - fs.lstat = function (path, cb) { - if (typeof cb === "undefined") { cb = nopCb; } - var newCb = wrapCb(cb, 2); - try { - return fs.root.stat(normalizePath(path), true, newCb); - } catch (e) { - return newCb(e, null); - } - }; - - /** - * Synchronous `lstat`. - * `lstat()` is identical to `stat()`, except that if path is a symbolic link, - * then the link itself is stat-ed, not the file that it refers to. - * @param [String] path - * @return [BrowserFS.node.fs.Stats] - */ - fs.lstatSync = function (path) { - return fs.root.statSync(normalizePath(path), true); - }; - - fs.truncate = function (path, arg2, cb) { - if (typeof arg2 === "undefined") { arg2 = 0; } - if (typeof cb === "undefined") { cb = nopCb; } - var len = 0; - if (typeof arg2 === 'function') { - cb = arg2; - } else if (typeof arg2 === 'number') { - len = arg2; - } - - var newCb = wrapCb(cb, 1); - try { - if (len < 0) { - throw new ApiError(9 /* EINVAL */); - } - return fs.root.truncate(normalizePath(path), len, newCb); - } catch (e) { - return newCb(e); - } - }; - - /** - * Synchronous `truncate`. - * @param [String] path - * @param [Number] len - */ - fs.truncateSync = function (path, len) { - if (typeof len === "undefined") { len = 0; } - if (len < 0) { - throw new ApiError(9 /* EINVAL */); - } - return fs.root.truncateSync(normalizePath(path), len); - }; - - /** - * Asynchronous `unlink`. - * @param [String] path - * @param [Function(BrowserFS.ApiError)] callback - */ - fs.unlink = function (path, cb) { - if (typeof cb === "undefined") { cb = nopCb; } - var newCb = wrapCb(cb, 1); - try { - return fs.root.unlink(normalizePath(path), newCb); - } catch (e) { - return newCb(e); - } - }; - - /** - * Synchronous `unlink`. - * @param [String] path - */ - fs.unlinkSync = function (path) { - return fs.root.unlinkSync(normalizePath(path)); - }; - - fs.open = function (path, flag, arg2, cb) { - if (typeof cb === "undefined") { cb = nopCb; } - var mode = normalizeMode(arg2, 0x1a4); - cb = typeof arg2 === 'function' ? arg2 : cb; - var newCb = wrapCb(cb, 2); - try { - return fs.root.open(normalizePath(path), FileFlag.getFileFlag(flag), mode, newCb); - } catch (e) { - return newCb(e, null); - } - }; - - fs.openSync = function (path, flag, mode) { - if (typeof mode === "undefined") { mode = 0x1a4; } - return fs.root.openSync(normalizePath(path), FileFlag.getFileFlag(flag), mode); - }; - - fs.readFile = function (filename, arg2, cb) { - if (typeof arg2 === "undefined") { arg2 = {}; } - if (typeof cb === "undefined") { cb = nopCb; } - var options = normalizeOptions(arg2, null, 'r', null); - cb = typeof arg2 === 'function' ? arg2 : cb; - var newCb = wrapCb(cb, 2); - try { - var flag = FileFlag.getFileFlag(options['flag']); - if (!flag.isReadable()) { - return newCb(new ApiError(9 /* EINVAL */, 'Flag passed to readFile must allow for reading.')); - } - return fs.root.readFile(normalizePath(filename), options.encoding, flag, newCb); - } catch (e) { - return newCb(e, null); - } - }; - - fs.readFileSync = function (filename, arg2) { - if (typeof arg2 === "undefined") { arg2 = {}; } - var options = normalizeOptions(arg2, null, 'r', null); - var flag = FileFlag.getFileFlag(options.flag); - if (!flag.isReadable()) { - throw new ApiError(9 /* EINVAL */, 'Flag passed to readFile must allow for reading.'); - } - return fs.root.readFileSync(normalizePath(filename), options.encoding, flag); - }; - - fs.writeFile = function (filename, data, arg3, cb) { - if (typeof arg3 === "undefined") { arg3 = {}; } - if (typeof cb === "undefined") { cb = nopCb; } - var options = normalizeOptions(arg3, 'utf8', 'w', 0x1a4); - cb = typeof arg3 === 'function' ? arg3 : cb; - var newCb = wrapCb(cb, 1); - try { - var flag = FileFlag.getFileFlag(options.flag); - if (!flag.isWriteable()) { - return newCb(new ApiError(9 /* EINVAL */, 'Flag passed to writeFile must allow for writing.')); - } - return fs.root.writeFile(normalizePath(filename), data, options.encoding, flag, options.mode, newCb); - } catch (e) { - return newCb(e); - } - }; - - fs.writeFileSync = function (filename, data, arg3) { - var options = normalizeOptions(arg3, 'utf8', 'w', 0x1a4); - var flag = FileFlag.getFileFlag(options.flag); - if (!flag.isWriteable()) { - throw new ApiError(9 /* EINVAL */, 'Flag passed to writeFile must allow for writing.'); - } - return fs.root.writeFileSync(normalizePath(filename), data, options.encoding, flag, options.mode); - }; - - fs.appendFile = function (filename, data, arg3, cb) { - if (typeof cb === "undefined") { cb = nopCb; } - var options = normalizeOptions(arg3, 'utf8', 'a', 0x1a4); - cb = typeof arg3 === 'function' ? arg3 : cb; - var newCb = wrapCb(cb, 1); - try { - var flag = FileFlag.getFileFlag(options.flag); - if (!flag.isAppendable()) { - return newCb(new ApiError(9 /* EINVAL */, 'Flag passed to appendFile must allow for appending.')); - } - fs.root.appendFile(normalizePath(filename), data, options.encoding, flag, options.mode, newCb); - } catch (e) { - newCb(e); - } - }; - - fs.appendFileSync = function (filename, data, arg3) { - var options = normalizeOptions(arg3, 'utf8', 'a', 0x1a4); - var flag = FileFlag.getFileFlag(options.flag); - if (!flag.isAppendable()) { - throw new ApiError(9 /* EINVAL */, 'Flag passed to appendFile must allow for appending.'); - } - return fs.root.appendFileSync(normalizePath(filename), data, options.encoding, flag, options.mode); - }; - - // FILE DESCRIPTOR METHODS - /** - * Asynchronous `fstat`. - * `fstat()` is identical to `stat()`, except that the file to be stat-ed is - * specified by the file descriptor `fd`. - * @param [BrowserFS.File] fd - * @param [Function(BrowserFS.ApiError, BrowserFS.node.fs.Stats)] callback - */ - fs.fstat = function (fd, cb) { - if (typeof cb === "undefined") { cb = nopCb; } - var newCb = wrapCb(cb, 2); - try { - checkFd(fd); - fd.stat(newCb); - } catch (e) { - newCb(e); - } - }; - - /** - * Synchronous `fstat`. - * `fstat()` is identical to `stat()`, except that the file to be stat-ed is - * specified by the file descriptor `fd`. - * @param [BrowserFS.File] fd - * @return [BrowserFS.node.fs.Stats] - */ - fs.fstatSync = function (fd) { - checkFd(fd); - return fd.statSync(); - }; - - /** - * Asynchronous close. - * @param [BrowserFS.File] fd - * @param [Function(BrowserFS.ApiError)] callback - */ - fs.close = function (fd, cb) { - if (typeof cb === "undefined") { cb = nopCb; } - var newCb = wrapCb(cb, 1); - try { - checkFd(fd); - fd.close(newCb); - } catch (e) { - newCb(e); - } - }; - - /** - * Synchronous close. - * @param [BrowserFS.File] fd - */ - fs.closeSync = function (fd) { - checkFd(fd); - return fd.closeSync(); - }; - - fs.ftruncate = function (fd, arg2, cb) { - if (typeof cb === "undefined") { cb = nopCb; } - var length = typeof arg2 === 'number' ? arg2 : 0; - cb = typeof arg2 === 'function' ? arg2 : cb; - var newCb = wrapCb(cb, 1); - try { - checkFd(fd); - if (length < 0) { - throw new ApiError(9 /* EINVAL */); - } - fd.truncate(length, newCb); - } catch (e) { - newCb(e); - } - }; - - /** - * Synchronous ftruncate. - * @param [BrowserFS.File] fd - * @param [Number] len - */ - fs.ftruncateSync = function (fd, len) { - if (typeof len === "undefined") { len = 0; } - checkFd(fd); - return fd.truncateSync(len); - }; - - /** - * Asynchronous fsync. - * @param [BrowserFS.File] fd - * @param [Function(BrowserFS.ApiError)] callback - */ - fs.fsync = function (fd, cb) { - if (typeof cb === "undefined") { cb = nopCb; } - var newCb = wrapCb(cb, 1); - try { - checkFd(fd); - fd.sync(newCb); - } catch (e) { - newCb(e); - } - }; - - /** - * Synchronous fsync. - * @param [BrowserFS.File] fd - */ - fs.fsyncSync = function (fd) { - checkFd(fd); - return fd.syncSync(); - }; - - /** - * Asynchronous fdatasync. - * @param [BrowserFS.File] fd - * @param [Function(BrowserFS.ApiError)] callback - */ - fs.fdatasync = function (fd, cb) { - if (typeof cb === "undefined") { cb = nopCb; } - var newCb = wrapCb(cb, 1); - try { - checkFd(fd); - fd.datasync(newCb); - } catch (e) { - newCb(e); - } - }; - - /** - * Synchronous fdatasync. - * @param [BrowserFS.File] fd - */ - fs.fdatasyncSync = function (fd) { - checkFd(fd); - fd.datasyncSync(); - }; - - fs.write = function (fd, arg2, arg3, arg4, arg5, cb) { - if (typeof cb === "undefined") { cb = nopCb; } - var buffer, offset, length, position = null; - if (typeof arg2 === 'string') { - // Signature 1: (fd, string, [position?, [encoding?]], cb?) - var encoding = 'utf8'; - switch (typeof arg3) { - case 'function': - // (fd, string, cb) - cb = arg3; - break; - case 'number': - // (fd, string, position, encoding?, cb?) - position = arg3; - encoding = typeof arg4 === 'string' ? arg4 : 'utf8'; - cb = typeof arg5 === 'function' ? arg5 : cb; - break; - default: - // ...try to find the callback and get out of here! - cb = typeof arg4 === 'function' ? arg4 : typeof arg5 === 'function' ? arg5 : cb; - return cb(new ApiError(9 /* EINVAL */, 'Invalid arguments.')); - } - buffer = new Buffer(arg2, encoding); - offset = 0; - length = buffer.length; - } else { - // Signature 2: (fd, buffer, offset, length, position?, cb?) - buffer = arg2; - offset = arg3; - length = arg4; - position = typeof arg5 === 'number' ? arg5 : null; - cb = typeof arg5 === 'function' ? arg5 : cb; - } - - var newCb = wrapCb(cb, 3); - try { - checkFd(fd); - if (position == null) { - position = fd.getPos(); - } - fd.write(buffer, offset, length, position, newCb); - } catch (e) { - newCb(e); - } - }; - - fs.writeSync = function (fd, arg2, arg3, arg4, arg5) { - var buffer, offset = 0, length, position; - if (typeof arg2 === 'string') { - // Signature 1: (fd, string, [position?, [encoding?]]) - position = typeof arg3 === 'number' ? arg3 : null; - var encoding = typeof arg4 === 'string' ? arg4 : 'utf8'; - offset = 0; - buffer = new Buffer(arg2, encoding); - length = buffer.length; - } else { - // Signature 2: (fd, buffer, offset, length, position?) - buffer = arg2; - offset = arg3; - length = arg4; - position = typeof arg5 === 'number' ? arg5 : null; - } - - checkFd(fd); - if (position == null) { - position = fd.getPos(); - } - return fd.writeSync(buffer, offset, length, position); - }; - - fs.read = function (fd, arg2, arg3, arg4, arg5, cb) { - if (typeof cb === "undefined") { cb = nopCb; } - var position, offset, length, buffer, newCb; - if (typeof arg2 === 'number') { - // legacy interface - // (fd, length, position, encoding, callback) - length = arg2; - position = arg3; - var encoding = arg4; - cb = typeof arg5 === 'function' ? arg5 : cb; - offset = 0; - buffer = new Buffer(length); - - // XXX: Inefficient. - // Wrap the cb so we shelter upper layers of the API from these - // shenanigans. - newCb = wrapCb((function (err, bytesRead, buf) { - if (err) { - return cb(err); - } - cb(err, buf.toString(encoding), bytesRead); - }), 3); - } else { - buffer = arg2; - offset = arg3; - length = arg4; - position = arg5; - newCb = wrapCb(cb, 3); - } - - try { - checkFd(fd); - if (position == null) { - position = fd.getPos(); - } - fd.read(buffer, offset, length, position, newCb); - } catch (e) { - newCb(e); - } - }; - - fs.readSync = function (fd, arg2, arg3, arg4, arg5) { - var shenanigans = false; - var buffer, offset, length, position; - if (typeof arg2 === 'number') { - length = arg2; - position = arg3; - var encoding = arg4; - offset = 0; - buffer = new Buffer(length); - shenanigans = true; - } else { - buffer = arg2; - offset = arg3; - length = arg4; - position = arg5; - } - checkFd(fd); - if (position == null) { - position = fd.getPos(); - } - - var rv = fd.readSync(buffer, offset, length, position); - if (!shenanigans) { - return rv; - } else { - return [buffer.toString(encoding), rv]; - } - }; - - /** - * Asynchronous `fchown`. - * @param [BrowserFS.File] fd - * @param [Number] uid - * @param [Number] gid - * @param [Function(BrowserFS.ApiError)] callback - */ - fs.fchown = function (fd, uid, gid, callback) { - if (typeof callback === "undefined") { callback = nopCb; } - var newCb = wrapCb(callback, 1); - try { - checkFd(fd); - fd.chown(uid, gid, newCb); - } catch (e) { - newCb(e); - } - }; - - /** - * Synchronous `fchown`. - * @param [BrowserFS.File] fd - * @param [Number] uid - * @param [Number] gid - */ - fs.fchownSync = function (fd, uid, gid) { - checkFd(fd); - return fd.chownSync(uid, gid); - }; - - fs.fchmod = function (fd, mode, cb) { - if (typeof cb === "undefined") { cb = nopCb; } - var newCb = wrapCb(cb, 1); - try { - mode = typeof mode === 'string' ? parseInt(mode, 8) : mode; - checkFd(fd); - fd.chmod(mode, newCb); - } catch (e) { - newCb(e); - } - }; - - fs.fchmodSync = function (fd, mode) { - mode = typeof mode === 'string' ? parseInt(mode, 8) : mode; - checkFd(fd); - return fd.chmodSync(mode); - }; - - fs.futimes = function (fd, atime, mtime, cb) { - if (typeof cb === "undefined") { cb = nopCb; } - var newCb = wrapCb(cb, 1); - try { - checkFd(fd); - if (typeof atime === 'number') { - atime = new Date(atime * 1000); - } - if (typeof mtime === 'number') { - mtime = new Date(mtime * 1000); - } - fd.utimes(atime, mtime, newCb); - } catch (e) { - newCb(e); - } - }; - - fs.futimesSync = function (fd, atime, mtime) { - checkFd(fd); - if (typeof atime === 'number') { - atime = new Date(atime * 1000); - } - if (typeof mtime === 'number') { - mtime = new Date(mtime * 1000); - } - return fd.utimesSync(atime, mtime); - }; - - // DIRECTORY-ONLY METHODS - /** - * Asynchronous `rmdir`. - * @param [String] path - * @param [Function(BrowserFS.ApiError)] callback - */ - fs.rmdir = function (path, cb) { - if (typeof cb === "undefined") { cb = nopCb; } - var newCb = wrapCb(cb, 1); - try { - path = normalizePath(path); - fs.root.rmdir(path, newCb); - } catch (e) { - newCb(e); - } - }; - - /** - * Synchronous `rmdir`. - * @param [String] path - */ - fs.rmdirSync = function (path) { - path = normalizePath(path); - return fs.root.rmdirSync(path); - }; - - /** - * Asynchronous `mkdir`. - * @param [String] path - * @param [Number?] mode defaults to `0777` - * @param [Function(BrowserFS.ApiError)] callback - */ - fs.mkdir = function (path, mode, cb) { - if (typeof cb === "undefined") { cb = nopCb; } - if (typeof mode === 'function') { - cb = mode; - mode = 0x1ff; - } - var newCb = wrapCb(cb, 1); - try { - path = normalizePath(path); - fs.root.mkdir(path, mode, newCb); - } catch (e) { - newCb(e); - } - }; - - fs.mkdirSync = function (path, mode) { - if (typeof mode === "undefined") { mode = 0x1ff; } - mode = typeof mode === 'string' ? parseInt(mode, 8) : mode; - path = normalizePath(path); - return fs.root.mkdirSync(path, mode); - }; - - /** - * Asynchronous `readdir`. Reads the contents of a directory. - * The callback gets two arguments `(err, files)` where `files` is an array of - * the names of the files in the directory excluding `'.'` and `'..'`. - * @param [String] path - * @param [Function(BrowserFS.ApiError, String[])] callback - */ - fs.readdir = function (path, cb) { - if (typeof cb === "undefined") { cb = nopCb; } - var newCb = wrapCb(cb, 2); - try { - path = normalizePath(path); - fs.root.readdir(path, newCb); - } catch (e) { - newCb(e); - } - }; - - /** - * Synchronous `readdir`. Reads the contents of a directory. - * @param [String] path - * @return [String[]] - */ - fs.readdirSync = function (path) { - path = normalizePath(path); - return fs.root.readdirSync(path); - }; - - // SYMLINK METHODS - /** - * Asynchronous `link`. - * @param [String] srcpath - * @param [String] dstpath - * @param [Function(BrowserFS.ApiError)] callback - */ - fs.link = function (srcpath, dstpath, cb) { - if (typeof cb === "undefined") { cb = nopCb; } - var newCb = wrapCb(cb, 1); - try { - srcpath = normalizePath(srcpath); - dstpath = normalizePath(dstpath); - fs.root.link(srcpath, dstpath, newCb); - } catch (e) { - newCb(e); - } - }; - - /** - * Synchronous `link`. - * @param [String] srcpath - * @param [String] dstpath - */ - fs.linkSync = function (srcpath, dstpath) { - srcpath = normalizePath(srcpath); - dstpath = normalizePath(dstpath); - return fs.root.linkSync(srcpath, dstpath); - }; - - fs.symlink = function (srcpath, dstpath, arg3, cb) { - if (typeof cb === "undefined") { cb = nopCb; } - var type = typeof arg3 === 'string' ? arg3 : 'file'; - cb = typeof arg3 === 'function' ? arg3 : cb; - var newCb = wrapCb(cb, 1); - try { - if (type !== 'file' && type !== 'dir') { - return newCb(new ApiError(9 /* EINVAL */, "Invalid type: " + type)); - } - srcpath = normalizePath(srcpath); - dstpath = normalizePath(dstpath); - fs.root.symlink(srcpath, dstpath, type, newCb); - } catch (e) { - newCb(e); - } - }; - - /** - * Synchronous `symlink`. - * @param [String] srcpath - * @param [String] dstpath - * @param [String?] type can be either `'dir'` or `'file'` (default is `'file'`) - */ - fs.symlinkSync = function (srcpath, dstpath, type) { - if (type == null) { - type = 'file'; - } else if (type !== 'file' && type !== 'dir') { - throw new ApiError(9 /* EINVAL */, "Invalid type: " + type); - } - srcpath = normalizePath(srcpath); - dstpath = normalizePath(dstpath); - return fs.root.symlinkSync(srcpath, dstpath, type); - }; - - /** - * Asynchronous readlink. - * @param [String] path - * @param [Function(BrowserFS.ApiError, String)] callback - */ - fs.readlink = function (path, cb) { - if (typeof cb === "undefined") { cb = nopCb; } - var newCb = wrapCb(cb, 2); - try { - path = normalizePath(path); - fs.root.readlink(path, newCb); - } catch (e) { - newCb(e); - } - }; - - /** - * Synchronous readlink. - * @param [String] path - * @return [String] - */ - fs.readlinkSync = function (path) { - path = normalizePath(path); - return fs.root.readlinkSync(path); - }; - - // PROPERTY OPERATIONS - /** - * Asynchronous `chown`. - * @param [String] path - * @param [Number] uid - * @param [Number] gid - * @param [Function(BrowserFS.ApiError)] callback - */ - fs.chown = function (path, uid, gid, cb) { - if (typeof cb === "undefined") { cb = nopCb; } - var newCb = wrapCb(cb, 1); - try { - path = normalizePath(path); - fs.root.chown(path, false, uid, gid, newCb); - } catch (e) { - newCb(e); - } - }; - - /** - * Synchronous `chown`. - * @param [String] path - * @param [Number] uid - * @param [Number] gid - */ - fs.chownSync = function (path, uid, gid) { - path = normalizePath(path); - fs.root.chownSync(path, false, uid, gid); - }; - - /** - * Asynchronous `lchown`. - * @param [String] path - * @param [Number] uid - * @param [Number] gid - * @param [Function(BrowserFS.ApiError)] callback - */ - fs.lchown = function (path, uid, gid, cb) { - if (typeof cb === "undefined") { cb = nopCb; } - var newCb = wrapCb(cb, 1); - try { - path = normalizePath(path); - fs.root.chown(path, true, uid, gid, newCb); - } catch (e) { - newCb(e); - } - }; - - /** - * Synchronous `lchown`. - * @param [String] path - * @param [Number] uid - * @param [Number] gid - */ - fs.lchownSync = function (path, uid, gid) { - path = normalizePath(path); - return fs.root.chownSync(path, true, uid, gid); - }; - - fs.chmod = function (path, mode, cb) { - if (typeof cb === "undefined") { cb = nopCb; } - var newCb = wrapCb(cb, 1); - try { - mode = typeof mode === 'string' ? parseInt(mode, 8) : mode; - path = normalizePath(path); - fs.root.chmod(path, false, mode, newCb); - } catch (e) { - newCb(e); - } - }; - - fs.chmodSync = function (path, mode) { - mode = typeof mode === 'string' ? parseInt(mode, 8) : mode; - path = normalizePath(path); - return fs.root.chmodSync(path, false, mode); - }; - - fs.lchmod = function (path, mode, cb) { - if (typeof cb === "undefined") { cb = nopCb; } - var newCb = wrapCb(cb, 1); - try { - mode = typeof mode === 'string' ? parseInt(mode, 8) : mode; - path = normalizePath(path); - fs.root.chmod(path, true, mode, newCb); - } catch (e) { - newCb(e); - } - }; - - fs.lchmodSync = function (path, mode) { - path = normalizePath(path); - mode = typeof mode === 'string' ? parseInt(mode, 8) : mode; - return fs.root.chmodSync(path, true, mode); - }; - - fs.utimes = function (path, atime, mtime, cb) { - if (typeof cb === "undefined") { cb = nopCb; } - var newCb = wrapCb(cb, 1); - try { - path = normalizePath(path); - if (typeof atime === 'number') { - atime = new Date(atime * 1000); - } - if (typeof mtime === 'number') { - mtime = new Date(mtime * 1000); - } - fs.root.utimes(path, atime, mtime, newCb); - } catch (e) { - newCb(e); - } - }; - - fs.utimesSync = function (path, atime, mtime) { - path = normalizePath(path); - if (typeof atime === 'number') { - atime = new Date(atime * 1000); - } - if (typeof mtime === 'number') { - mtime = new Date(mtime * 1000); - } - return fs.root.utimesSync(path, atime, mtime); - }; - - fs.realpath = function (path, arg2, cb) { - if (typeof cb === "undefined") { cb = nopCb; } - var cache = typeof arg2 === 'object' ? arg2 : {}; - cb = typeof arg2 === 'function' ? arg2 : nopCb; - var newCb = wrapCb(cb, 2); - try { - path = normalizePath(path); - fs.root.realpath(path, cache, newCb); - } catch (e) { - newCb(e); - } - }; - - /** - * Synchronous `realpath`. - * @param [String] path - * @param [Object?] cache An object literal of mapped paths that can be used to - * force a specific path resolution or avoid additional `fs.stat` calls for - * known real paths. - * @return [String] - */ - fs.realpathSync = function (path, cache) { - if (typeof cache === "undefined") { cache = {}; } - path = normalizePath(path); - return fs.root.realpathSync(path, cache); - }; - fs.root = null; - return fs; - })(); - exports.fs = fs; -}); -//# sourceMappingURL=node_fs.js.map -; -define('core/browserfs',["require", "exports", './buffer', './node_fs', './node_path', './node_process'], function(require, exports, buffer, node_fs, node_path, node_process) { - /** - * Installs BrowserFS onto the given object. - * We recommend that you run install with the 'window' object to make things - * global, as in Node. - * - * Properties installed: - * - * * Buffer - * * process - * * require (we monkey-patch it) - * - * This allows you to write code as if you were running inside Node. - * @param {object} obj - The object to install things onto (e.g. window) - */ - function install(obj) { - obj.Buffer = buffer.Buffer; - obj.process = node_process.process; - var oldRequire = obj.require != null ? obj.require : null; - - // Monkey-patch require for Node-style code. - obj.require = function (arg) { - var rv = exports.BFSRequire(arg); - if (rv == null) { - return oldRequire.apply(null, Array.prototype.slice.call(arguments, 0)); - } else { - return rv; - } - }; - } - exports.install = install; - - exports.FileSystem = {}; - function registerFileSystem(name, fs) { - exports.FileSystem[name] = fs; - } - exports.registerFileSystem = registerFileSystem; - - function BFSRequire(module) { - switch (module) { - case 'fs': - return node_fs.fs; - case 'path': - return node_path.path; - case 'buffer': - // The 'buffer' module has 'Buffer' as a property. - return buffer; - case 'process': - return node_process.process; - default: - return exports.FileSystem[module]; - } - } - exports.BFSRequire = BFSRequire; - - /** - * You must call this function with a properly-instantiated root file system - * before using any file system API method. - * @param {BrowserFS.FileSystem} rootFS - The root filesystem to use for the - * entire BrowserFS file system. - */ - function initialize(rootfs) { - return node_fs.fs._initialize(rootfs); - } - exports.initialize = initialize; -}); -//# sourceMappingURL=browserfs.js.map -; -define('generic/emscripten_fs',["require", "exports", '../core/browserfs', '../core/node_fs', '../core/buffer', '../core/buffer_core_arraybuffer'], function(require, exports, BrowserFS, node_fs, buffer, buffer_core_arraybuffer) { - var Buffer = buffer.Buffer; - var BufferCoreArrayBuffer = buffer_core_arraybuffer.BufferCoreArrayBuffer; - var fs = node_fs.fs; - - var BFSEmscriptenStreamOps = (function () { - function BFSEmscriptenStreamOps(fs) { - this.fs = fs; - } - BFSEmscriptenStreamOps.prototype.open = function (stream) { - var path = this.fs.realPath(stream.node); - try { - if (FS.isFile(stream.node.mode)) { - stream.nfd = fs.openSync(path, this.fs.flagsToPermissionString(stream.flags)); - } - } catch (e) { - if (!e.code) - throw e; - throw new FS.ErrnoError(ERRNO_CODES[e.code]); - } - }; - - BFSEmscriptenStreamOps.prototype.close = function (stream) { - try { - if (FS.isFile(stream.node.mode) && stream.nfd) { - fs.closeSync(stream.nfd); - } - } catch (e) { - if (!e.code) - throw e; - throw new FS.ErrnoError(ERRNO_CODES[e.code]); - } - }; - - BFSEmscriptenStreamOps.prototype.read = function (stream, buffer, offset, length, position) { - // Avoid copying overhead by reading directly into buffer. - var bcore = new BufferCoreArrayBuffer(buffer.buffer); - var nbuffer = new Buffer(bcore, buffer.byteOffset + offset, buffer.byteOffset + offset + length); - var res; - try { - res = fs.readSync(stream.nfd, nbuffer, 0, length, position); - } catch (e) { - throw new FS.ErrnoError(ERRNO_CODES[e.code]); - } - - // No copying needed, since we wrote directly into UintArray. - return res; - }; - - BFSEmscriptenStreamOps.prototype.write = function (stream, buffer, offset, length, position) { - // Avoid copying overhead; plug the buffer directly into a BufferCore. - var bcore = new BufferCoreArrayBuffer(buffer.buffer); - var nbuffer = new Buffer(bcore, buffer.byteOffset + offset, buffer.byteOffset + offset + length); - var res; - try { - res = fs.writeSync(stream.nfd, nbuffer, 0, length, position); - } catch (e) { - throw new FS.ErrnoError(ERRNO_CODES[e.code]); - } - return res; - }; - - BFSEmscriptenStreamOps.prototype.llseek = function (stream, offset, whence) { - var position = offset; - if (whence === 1) { - position += stream.position; - } else if (whence === 2) { - if (FS.isFile(stream.node.mode)) { - try { - var stat = fs.fstatSync(stream.nfd); - position += stat.size; - } catch (e) { - throw new FS.ErrnoError(ERRNO_CODES[e.code]); - } - } - } - - if (position < 0) { - throw new FS.ErrnoError(ERRNO_CODES.EINVAL); - } - - stream.position = position; - return position; - }; - return BFSEmscriptenStreamOps; - })(); - - var BFSEmscriptenNodeOps = (function () { - function BFSEmscriptenNodeOps(fs) { - this.fs = fs; - } - BFSEmscriptenNodeOps.prototype.getattr = function (node) { - var path = this.fs.realPath(node); - var stat; - try { - stat = fs.lstatSync(path); - } catch (e) { - if (!e.code) - throw e; - throw new FS.ErrnoError(ERRNO_CODES[e.code]); - } - return { - dev: stat.dev, - ino: stat.ino, - mode: stat.mode, - nlink: stat.nlink, - uid: stat.uid, - gid: stat.gid, - rdev: stat.rdev, - size: stat.size, - atime: stat.atime, - mtime: stat.mtime, - ctime: stat.ctime, - blksize: stat.blksize, - blocks: stat.blocks - }; - }; - - BFSEmscriptenNodeOps.prototype.setattr = function (node, attr) { - var path = this.fs.realPath(node); - try { - if (attr.mode !== undefined) { - fs.chmodSync(path, attr.mode); - - // update the common node structure mode as well - node.mode = attr.mode; - } - if (attr.timestamp !== undefined) { - var date = new Date(attr.timestamp); - fs.utimesSync(path, date, date); - } - if (attr.size !== undefined) { - fs.truncateSync(path, attr.size); - } - } catch (e) { - if (!e.code) - throw e; - if (e.code === "ENOTSUP") { - // Ignore not supported errors. Emscripten does utimesSync when it - // writes files, but never really requires the value to be set. - return; - } - throw new FS.ErrnoError(ERRNO_CODES[e.code]); - } - }; - - BFSEmscriptenNodeOps.prototype.lookup = function (parent, name) { - var path = PATH.join2(this.fs.realPath(parent), name); - var mode = this.fs.getMode(path); - return this.fs.createNode(parent, name, mode); - }; - - BFSEmscriptenNodeOps.prototype.mknod = function (parent, name, mode, dev) { - var node = this.fs.createNode(parent, name, mode, dev); - - // create the backing node for this in the fs root as well - var path = this.fs.realPath(node); - try { - if (FS.isDir(node.mode)) { - fs.mkdirSync(path, node.mode); - } else { - fs.writeFileSync(path, '', { mode: node.mode }); - } - } catch (e) { - if (!e.code) - throw e; - throw new FS.ErrnoError(ERRNO_CODES[e.code]); - } - return node; - }; - - BFSEmscriptenNodeOps.prototype.rename = function (oldNode, newDir, newName) { - var oldPath = this.fs.realPath(oldNode); - var newPath = PATH.join2(this.fs.realPath(newDir), newName); - try { - fs.renameSync(oldPath, newPath); - } catch (e) { - if (!e.code) - throw e; - throw new FS.ErrnoError(ERRNO_CODES[e.code]); - } - }; - - BFSEmscriptenNodeOps.prototype.unlink = function (parent, name) { - var path = PATH.join2(this.fs.realPath(parent), name); - try { - fs.unlinkSync(path); - } catch (e) { - if (!e.code) - throw e; - throw new FS.ErrnoError(ERRNO_CODES[e.code]); - } - }; - - BFSEmscriptenNodeOps.prototype.rmdir = function (parent, name) { - var path = PATH.join2(this.fs.realPath(parent), name); - try { - fs.rmdirSync(path); - } catch (e) { - if (!e.code) - throw e; - throw new FS.ErrnoError(ERRNO_CODES[e.code]); - } - }; - - BFSEmscriptenNodeOps.prototype.readdir = function (node) { - var path = this.fs.realPath(node); - try { - return fs.readdirSync(path); - } catch (e) { - if (!e.code) - throw e; - throw new FS.ErrnoError(ERRNO_CODES[e.code]); - } - }; - - BFSEmscriptenNodeOps.prototype.symlink = function (parent, newName, oldPath) { - var newPath = PATH.join2(this.fs.realPath(parent), newName); - try { - fs.symlinkSync(oldPath, newPath); - } catch (e) { - if (!e.code) - throw e; - throw new FS.ErrnoError(ERRNO_CODES[e.code]); - } - }; - - BFSEmscriptenNodeOps.prototype.readlink = function (node) { - var path = this.fs.realPath(node); - try { - return fs.readlinkSync(path); - } catch (e) { - if (!e.code) - throw e; - throw new FS.ErrnoError(ERRNO_CODES[e.code]); - } - }; - return BFSEmscriptenNodeOps; - })(); - - var BFSEmscriptenFS = (function () { - function BFSEmscriptenFS() { - // This maps the integer permission modes from http://linux.die.net/man/3/open - // to node.js-specific file open permission strings at http://nodejs.org/api/fs.html#fs_fs_open_path_flags_mode_callback - this.flagsToPermissionStringMap = { - 0: 'r', - 1: 'r+', - 2: 'r+', - 64: 'r', - 65: 'r+', - 66: 'r+', - 129: 'rx+', - 193: 'rx+', - 514: 'w+', - 577: 'w', - 578: 'w+', - 705: 'wx', - 706: 'wx+', - 1024: 'a', - 1025: 'a', - 1026: 'a+', - 1089: 'a', - 1090: 'a+', - 1153: 'ax', - 1154: 'ax+', - 1217: 'ax', - 1218: 'ax+', - 4096: 'rs', - 4098: 'rs+' - }; - this.node_ops = new BFSEmscriptenNodeOps(this); - this.stream_ops = new BFSEmscriptenStreamOps(this); - if (typeof BrowserFS === 'undefined') { - throw new Error("BrowserFS is not loaded. Please load it before this library."); - } - } - BFSEmscriptenFS.prototype.mount = function (mount) { - return this.createNode(null, '/', this.getMode(mount.opts.root), 0); - }; - - BFSEmscriptenFS.prototype.createNode = function (parent, name, mode, dev) { - if (!FS.isDir(mode) && !FS.isFile(mode) && !FS.isLink(mode)) { - throw new FS.ErrnoError(ERRNO_CODES.EINVAL); - } - var node = FS.createNode(parent, name, mode); - node.node_ops = this.node_ops; - node.stream_ops = this.stream_ops; - return node; - }; - - BFSEmscriptenFS.prototype.getMode = function (path) { - var stat; - try { - stat = fs.lstatSync(path); - } catch (e) { - if (!e.code) - throw e; - throw new FS.ErrnoError(ERRNO_CODES[e.code]); - } - return stat.mode; - }; - - BFSEmscriptenFS.prototype.realPath = function (node) { - var parts = []; - while (node.parent !== node) { - parts.push(node.name); - node = node.parent; - } - parts.push(node.mount.opts.root); - parts.reverse(); - return PATH.join.apply(null, parts); - }; - - BFSEmscriptenFS.prototype.flagsToPermissionString = function (flags) { - if (flags in this.flagsToPermissionStringMap) { - return this.flagsToPermissionStringMap[flags]; - } else { - return flags; - } - }; - return BFSEmscriptenFS; - })(); - exports.BFSEmscriptenFS = BFSEmscriptenFS; - - // Make it available on the global BrowserFS object. - BrowserFS['EmscriptenFS'] = BFSEmscriptenFS; -}); -//# sourceMappingURL=emscripten_fs.js.map -; -var __extends = this.__extends || function (d, b) { - for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; - function __() { this.constructor = d; } - __.prototype = b.prototype; - d.prototype = new __(); -}; -define('core/file_system',["require", "exports", './api_error', './file_flag', './node_path', './buffer'], function(require, exports, api_error, file_flag, node_path, buffer) { - var ApiError = api_error.ApiError; - var ErrorCode = api_error.ErrorCode; - var path = node_path.path; - var Buffer = buffer.Buffer; - var ActionType = file_flag.ActionType; - - - - - - /** - * Basic filesystem class. Most filesystems should extend this class, as it - * provides default implementations for a handful of methods. - */ - var BaseFileSystem = (function () { - function BaseFileSystem() { - } - BaseFileSystem.prototype.supportsLinks = function () { - return false; - }; - BaseFileSystem.prototype.diskSpace = function (p, cb) { - cb(0, 0); - }; - - /** - * Opens the file at path p with the given flag. The file must exist. - * @param p The path to open. - * @param flag The flag to use when opening the file. - */ - BaseFileSystem.prototype.openFile = function (p, flag, cb) { - throw new ApiError(14 /* ENOTSUP */); - }; - - /** - * Create the file at path p with the given mode. Then, open it with the given - * flag. - */ - BaseFileSystem.prototype.createFile = function (p, flag, mode, cb) { - throw new ApiError(14 /* ENOTSUP */); - }; - BaseFileSystem.prototype.open = function (p, flag, mode, cb) { - var _this = this; - var must_be_file = function (e, stats) { - if (e) { - switch (flag.pathNotExistsAction()) { - case 3 /* CREATE_FILE */: - // Ensure parent exists. - return _this.stat(path.dirname(p), false, function (e, parentStats) { - if (e) { - cb(e); - } else if (!parentStats.isDirectory()) { - cb(new ApiError(7 /* ENOTDIR */, path.dirname(p) + " is not a directory.")); - } else { - _this.createFile(p, flag, mode, cb); - } - }); - case 1 /* THROW_EXCEPTION */: - return cb(new ApiError(1 /* ENOENT */, "" + p + " doesn't exist.")); - default: - return cb(new ApiError(9 /* EINVAL */, 'Invalid FileFlag object.')); - } - } else { - // File exists. - if (stats.isDirectory()) { - return cb(new ApiError(8 /* EISDIR */, p + " is a directory.")); - } - switch (flag.pathExistsAction()) { - case 1 /* THROW_EXCEPTION */: - return cb(new ApiError(6 /* EEXIST */, p + " already exists.")); - case 2 /* TRUNCATE_FILE */: - // NOTE: In a previous implementation, we deleted the file and - // re-created it. However, this created a race condition if another - // asynchronous request was trying to read the file, as the file - // would not exist for a small period of time. - return _this.openFile(p, flag, function (e, fd) { - if (e) { - cb(e); - } else { - fd.truncate(0, function () { - fd.sync(function () { - cb(null, fd); - }); - }); - } - }); - case 0 /* NOP */: - return _this.openFile(p, flag, cb); - default: - return cb(new ApiError(9 /* EINVAL */, 'Invalid FileFlag object.')); - } - } - }; - this.stat(p, false, must_be_file); - }; - BaseFileSystem.prototype.rename = function (oldPath, newPath, cb) { - cb(new ApiError(14 /* ENOTSUP */)); - }; - BaseFileSystem.prototype.renameSync = function (oldPath, newPath) { - throw new ApiError(14 /* ENOTSUP */); - }; - BaseFileSystem.prototype.stat = function (p, isLstat, cb) { - cb(new ApiError(14 /* ENOTSUP */)); - }; - BaseFileSystem.prototype.statSync = function (p, isLstat) { - throw new ApiError(14 /* ENOTSUP */); - }; - - /** - * Opens the file at path p with the given flag. The file must exist. - * @param p The path to open. - * @param flag The flag to use when opening the file. - * @return A File object corresponding to the opened file. - */ - BaseFileSystem.prototype.openFileSync = function (p, flag) { - throw new ApiError(14 /* ENOTSUP */); - }; - - /** - * Create the file at path p with the given mode. Then, open it with the given - * flag. - */ - BaseFileSystem.prototype.createFileSync = function (p, flag, mode) { - throw new ApiError(14 /* ENOTSUP */); - }; - BaseFileSystem.prototype.openSync = function (p, flag, mode) { - // Check if the path exists, and is a file. - var stats; - try { - stats = this.statSync(p, false); - } catch (e) { - switch (flag.pathNotExistsAction()) { - case 3 /* CREATE_FILE */: - // Ensure parent exists. - var parentStats = this.statSync(path.dirname(p), false); - if (!parentStats.isDirectory()) { - throw new ApiError(7 /* ENOTDIR */, path.dirname(p) + " is not a directory."); - } - return this.createFileSync(p, flag, mode); - case 1 /* THROW_EXCEPTION */: - throw new ApiError(1 /* ENOENT */, "" + p + " doesn't exist."); - default: - throw new ApiError(9 /* EINVAL */, 'Invalid FileFlag object.'); - } - } - - // File exists. - if (stats.isDirectory()) { - throw new ApiError(8 /* EISDIR */, p + " is a directory."); - } - switch (flag.pathExistsAction()) { - case 1 /* THROW_EXCEPTION */: - throw new ApiError(6 /* EEXIST */, p + " already exists."); - case 2 /* TRUNCATE_FILE */: - // Delete file. - this.unlinkSync(p); - - // Create file. Use the same mode as the old file. - // Node itself modifies the ctime when this occurs, so this action - // will preserve that behavior if the underlying file system - // supports those properties. - return this.createFileSync(p, flag, stats.mode); - case 0 /* NOP */: - return this.openFileSync(p, flag); - default: - throw new ApiError(9 /* EINVAL */, 'Invalid FileFlag object.'); - } - }; - BaseFileSystem.prototype.unlink = function (p, cb) { - cb(new ApiError(14 /* ENOTSUP */)); - }; - BaseFileSystem.prototype.unlinkSync = function (p) { - throw new ApiError(14 /* ENOTSUP */); - }; - BaseFileSystem.prototype.rmdir = function (p, cb) { - cb(new ApiError(14 /* ENOTSUP */)); - }; - BaseFileSystem.prototype.rmdirSync = function (p) { - throw new ApiError(14 /* ENOTSUP */); - }; - BaseFileSystem.prototype.mkdir = function (p, mode, cb) { - cb(new ApiError(14 /* ENOTSUP */)); - }; - BaseFileSystem.prototype.mkdirSync = function (p, mode) { - throw new ApiError(14 /* ENOTSUP */); - }; - BaseFileSystem.prototype.readdir = function (p, cb) { - cb(new ApiError(14 /* ENOTSUP */)); - }; - BaseFileSystem.prototype.readdirSync = function (p) { - throw new ApiError(14 /* ENOTSUP */); - }; - BaseFileSystem.prototype.exists = function (p, cb) { - this.stat(p, null, function (err) { - cb(err == null); - }); - }; - BaseFileSystem.prototype.existsSync = function (p) { - try { - this.statSync(p, true); - return true; - } catch (e) { - return false; - } - }; - BaseFileSystem.prototype.realpath = function (p, cache, cb) { - if (this.supportsLinks()) { - // The path could contain symlinks. Split up the path, - // resolve any symlinks, return the resolved string. - var splitPath = p.split(path.sep); - - for (var i = 0; i < splitPath.length; i++) { - var addPaths = splitPath.slice(0, i + 1); - splitPath[i] = path.join.apply(null, addPaths); - } - } else { - // No symlinks. We just need to verify that it exists. - this.exists(p, function (doesExist) { - if (doesExist) { - cb(null, p); - } else { - cb(new ApiError(1 /* ENOENT */, "File " + p + " not found.")); - } - }); - } - }; - BaseFileSystem.prototype.realpathSync = function (p, cache) { - if (this.supportsLinks()) { - // The path could contain symlinks. Split up the path, - // resolve any symlinks, return the resolved string. - var splitPath = p.split(path.sep); - - for (var i = 0; i < splitPath.length; i++) { - var addPaths = splitPath.slice(0, i + 1); - splitPath[i] = path.join.apply(null, addPaths); - } - } else { - // No symlinks. We just need to verify that it exists. - if (this.existsSync(p)) { - return p; - } else { - throw new ApiError(1 /* ENOENT */, "File " + p + " not found."); - } - } - }; - BaseFileSystem.prototype.truncate = function (p, len, cb) { - this.open(p, file_flag.FileFlag.getFileFlag('r+'), 0x1a4, (function (er, fd) { - if (er) { - return cb(er); - } - fd.truncate(len, (function (er) { - fd.close((function (er2) { - cb(er || er2); - })); - })); - })); - }; - BaseFileSystem.prototype.truncateSync = function (p, len) { - var fd = this.openSync(p, file_flag.FileFlag.getFileFlag('r+'), 0x1a4); - - try { - fd.truncateSync(len); - } catch (e) { - throw e; - } finally { - fd.closeSync(); - } - }; - BaseFileSystem.prototype.readFile = function (fname, encoding, flag, cb) { - // Wrap cb in file closing code. - var oldCb = cb; - - // Get file. - this.open(fname, flag, 0x1a4, function (err, fd) { - if (err) { - return cb(err); - } - cb = function (err, arg) { - fd.close(function (err2) { - if (err == null) { - err = err2; - } - return oldCb(err, arg); - }); - }; - fd.stat(function (err, stat) { - if (err != null) { - return cb(err); - } - - // Allocate buffer. - var buf = new Buffer(stat.size); - fd.read(buf, 0, stat.size, 0, function (err) { - if (err != null) { - return cb(err); - } else if (encoding === null) { - return cb(err, buf); - } - try { - cb(null, buf.toString(encoding)); - } catch (e) { - cb(e); - } - }); - }); - }); - }; - BaseFileSystem.prototype.readFileSync = function (fname, encoding, flag) { - // Get file. - var fd = this.openSync(fname, flag, 0x1a4); - try { - var stat = fd.statSync(); - - // Allocate buffer. - var buf = new Buffer(stat.size); - fd.readSync(buf, 0, stat.size, 0); - fd.closeSync(); - if (encoding === null) { - return buf; - } - return buf.toString(encoding); - } finally { - fd.closeSync(); - } - }; - BaseFileSystem.prototype.writeFile = function (fname, data, encoding, flag, mode, cb) { - // Wrap cb in file closing code. - var oldCb = cb; - - // Get file. - this.open(fname, flag, 0x1a4, function (err, fd) { - if (err != null) { - return cb(err); - } - cb = function (err) { - fd.close(function (err2) { - oldCb(err != null ? err : err2); - }); - }; - - try { - if (typeof data === 'string') { - data = new Buffer(data, encoding); - } - } catch (e) { - return cb(e); - } - - // Write into file. - fd.write(data, 0, data.length, 0, cb); - }); - }; - BaseFileSystem.prototype.writeFileSync = function (fname, data, encoding, flag, mode) { - // Get file. - var fd = this.openSync(fname, flag, mode); - try { - if (typeof data === 'string') { - data = new Buffer(data, encoding); - } - - // Write into file. - fd.writeSync(data, 0, data.length, 0); - } finally { - fd.closeSync(); - } - }; - BaseFileSystem.prototype.appendFile = function (fname, data, encoding, flag, mode, cb) { - // Wrap cb in file closing code. - var oldCb = cb; - this.open(fname, flag, mode, function (err, fd) { - if (err != null) { - return cb(err); - } - cb = function (err) { - fd.close(function (err2) { - oldCb(err != null ? err : err2); - }); - }; - if (typeof data === 'string') { - data = new Buffer(data, encoding); - } - fd.write(data, 0, data.length, null, cb); - }); - }; - BaseFileSystem.prototype.appendFileSync = function (fname, data, encoding, flag, mode) { - var fd = this.openSync(fname, flag, mode); - try { - if (typeof data === 'string') { - data = new Buffer(data, encoding); - } - fd.writeSync(data, 0, data.length, null); - } finally { - fd.closeSync(); - } - }; - BaseFileSystem.prototype.chmod = function (p, isLchmod, mode, cb) { - cb(new ApiError(14 /* ENOTSUP */)); - }; - BaseFileSystem.prototype.chmodSync = function (p, isLchmod, mode) { - throw new ApiError(14 /* ENOTSUP */); - }; - BaseFileSystem.prototype.chown = function (p, isLchown, uid, gid, cb) { - cb(new ApiError(14 /* ENOTSUP */)); - }; - BaseFileSystem.prototype.chownSync = function (p, isLchown, uid, gid) { - throw new ApiError(14 /* ENOTSUP */); - }; - BaseFileSystem.prototype.utimes = function (p, atime, mtime, cb) { - cb(new ApiError(14 /* ENOTSUP */)); - }; - BaseFileSystem.prototype.utimesSync = function (p, atime, mtime) { - throw new ApiError(14 /* ENOTSUP */); - }; - BaseFileSystem.prototype.link = function (srcpath, dstpath, cb) { - cb(new ApiError(14 /* ENOTSUP */)); - }; - BaseFileSystem.prototype.linkSync = function (srcpath, dstpath) { - throw new ApiError(14 /* ENOTSUP */); - }; - BaseFileSystem.prototype.symlink = function (srcpath, dstpath, type, cb) { - cb(new ApiError(14 /* ENOTSUP */)); - }; - BaseFileSystem.prototype.symlinkSync = function (srcpath, dstpath, type) { - throw new ApiError(14 /* ENOTSUP */); - }; - BaseFileSystem.prototype.readlink = function (p, cb) { - cb(new ApiError(14 /* ENOTSUP */)); - }; - BaseFileSystem.prototype.readlinkSync = function (p) { - throw new ApiError(14 /* ENOTSUP */); - }; - return BaseFileSystem; - })(); - exports.BaseFileSystem = BaseFileSystem; - - /** - * Implements the asynchronous API in terms of the synchronous API. - * @class SynchronousFileSystem - */ - var SynchronousFileSystem = (function (_super) { - __extends(SynchronousFileSystem, _super); - function SynchronousFileSystem() { - _super.apply(this, arguments); - } - SynchronousFileSystem.prototype.supportsSynch = function () { - return true; - }; - - SynchronousFileSystem.prototype.rename = function (oldPath, newPath, cb) { - try { - this.renameSync(oldPath, newPath); - cb(); - } catch (e) { - cb(e); - } - }; - - SynchronousFileSystem.prototype.stat = function (p, isLstat, cb) { - try { - cb(null, this.statSync(p, isLstat)); - } catch (e) { - cb(e); - } - }; - - SynchronousFileSystem.prototype.open = function (p, flags, mode, cb) { - try { - cb(null, this.openSync(p, flags, mode)); - } catch (e) { - cb(e); - } - }; - - SynchronousFileSystem.prototype.unlink = function (p, cb) { - try { - this.unlinkSync(p); - cb(); - } catch (e) { - cb(e); - } - }; - - SynchronousFileSystem.prototype.rmdir = function (p, cb) { - try { - this.rmdirSync(p); - cb(); - } catch (e) { - cb(e); - } - }; - - SynchronousFileSystem.prototype.mkdir = function (p, mode, cb) { - try { - this.mkdirSync(p, mode); - cb(); - } catch (e) { - cb(e); - } - }; - - SynchronousFileSystem.prototype.readdir = function (p, cb) { - try { - cb(null, this.readdirSync(p)); - } catch (e) { - cb(e); - } - }; - - SynchronousFileSystem.prototype.chmod = function (p, isLchmod, mode, cb) { - try { - this.chmodSync(p, isLchmod, mode); - cb(); - } catch (e) { - cb(e); - } - }; - - SynchronousFileSystem.prototype.chown = function (p, isLchown, uid, gid, cb) { - try { - this.chownSync(p, isLchown, uid, gid); - cb(); - } catch (e) { - cb(e); - } - }; - - SynchronousFileSystem.prototype.utimes = function (p, atime, mtime, cb) { - try { - this.utimesSync(p, atime, mtime); - cb(); - } catch (e) { - cb(e); - } - }; - - SynchronousFileSystem.prototype.link = function (srcpath, dstpath, cb) { - try { - this.linkSync(srcpath, dstpath); - cb(); - } catch (e) { - cb(e); - } - }; - - SynchronousFileSystem.prototype.symlink = function (srcpath, dstpath, type, cb) { - try { - this.symlinkSync(srcpath, dstpath, type); - cb(); - } catch (e) { - cb(e); - } - }; - - SynchronousFileSystem.prototype.readlink = function (p, cb) { - try { - cb(null, this.readlinkSync(p)); - } catch (e) { - cb(e); - } - }; - return SynchronousFileSystem; - })(BaseFileSystem); - exports.SynchronousFileSystem = SynchronousFileSystem; -}); -//# sourceMappingURL=file_system.js.map -; -define('core/node_fs_stats',["require", "exports"], function(require, exports) { - /** - * Indicates the type of the given file. Applied to 'mode'. - */ - (function (FileType) { - FileType[FileType["FILE"] = 0x8000] = "FILE"; - FileType[FileType["DIRECTORY"] = 0x4000] = "DIRECTORY"; - FileType[FileType["SYMLINK"] = 0xA000] = "SYMLINK"; - })(exports.FileType || (exports.FileType = {})); - var FileType = exports.FileType; - - /** - * Emulation of Node's `fs.Stats` object. - * - * Attribute descriptions are from `man 2 stat' - * @see http://nodejs.org/api/fs.html#fs_class_fs_stats - * @see http://man7.org/linux/man-pages/man2/stat.2.html - * @class - */ - var Stats = (function () { - /** - * Provides information about a particular entry in the file system. - * @param [Number] item_type type of the item (FILE, DIRECTORY, SYMLINK, or SOCKET) - * @param [Number] size Size of the item in bytes. For directories/symlinks, - * this is normally the size of the struct that represents the item. - * @param [Number] mode Unix-style file mode (e.g. 0o644) - * @param [Date?] atime time of last access - * @param [Date?] mtime time of last modification - * @param [Date?] ctime time of creation - */ - function Stats(item_type, size, mode, atime, mtime, ctime) { - if (typeof atime === "undefined") { atime = new Date(); } - if (typeof mtime === "undefined") { mtime = new Date(); } - if (typeof ctime === "undefined") { ctime = new Date(); } - this.size = size; - this.mode = mode; - this.atime = atime; - this.mtime = mtime; - this.ctime = ctime; - /** - * UNSUPPORTED ATTRIBUTES - * I assume no one is going to need these details, although we could fake - * appropriate values if need be. - */ - // ID of device containing file - this.dev = 0; - // inode number - this.ino = 0; - // device ID (if special file) - this.rdev = 0; - // number of hard links - this.nlink = 1; - // blocksize for file system I/O - this.blksize = 4096; - // @todo Maybe support these? atm, it's a one-user filesystem. - // user ID of owner - this.uid = 0; - // group ID of owner - this.gid = 0; - if (this.mode == null) { - switch (item_type) { - case 32768 /* FILE */: - this.mode = 0x1a4; - break; - case 16384 /* DIRECTORY */: - default: - this.mode = 0x1ff; - } - } - - // number of 512B blocks allocated - this.blocks = Math.ceil(size / 512); - - // Check if mode also includes top-most bits, which indicate the file's - // type. - if (this.mode < 0x1000) { - this.mode |= item_type; - } - } - /** - * **Nonstandard**: Clone the stats object. - * @return [BrowserFS.node.fs.Stats] - */ - Stats.prototype.clone = function () { - return new Stats(this.mode & 0xF000, this.size, this.mode & 0xFFF, this.atime, this.mtime, this.ctime); - }; - - /** - * @return [Boolean] True if this item is a file. - */ - Stats.prototype.isFile = function () { - return (this.mode & 0xF000) === 32768 /* FILE */; - }; - - /** - * @return [Boolean] True if this item is a directory. - */ - Stats.prototype.isDirectory = function () { - return (this.mode & 0xF000) === 16384 /* DIRECTORY */; - }; - - /** - * @return [Boolean] True if this item is a symbolic link (only valid through lstat) - */ - Stats.prototype.isSymbolicLink = function () { - return (this.mode & 0xF000) === 40960 /* SYMLINK */; - }; - - /** - * Change the mode of the file. We use this helper function to prevent messing - * up the type of the file, which is encoded in mode. - */ - Stats.prototype.chmod = function (mode) { - this.mode = (this.mode & 0xF000) | mode; - }; - - // We don't support the following types of files. - Stats.prototype.isSocket = function () { - return false; - }; - - Stats.prototype.isBlockDevice = function () { - return false; - }; - - Stats.prototype.isCharacterDevice = function () { - return false; - }; - - Stats.prototype.isFIFO = function () { - return false; - }; - return Stats; - })(); - exports.Stats = Stats; -}); -//# sourceMappingURL=node_fs_stats.js.map -; -define('generic/inode',["require", "exports", '../core/node_fs_stats', '../core/buffer'], function(require, exports, node_fs_stats, buffer) { - /** - * Generic inode definition that can easily be serialized. - */ - var Inode = (function () { - function Inode(id, size, mode, atime, mtime, ctime) { - this.id = id; - this.size = size; - this.mode = mode; - this.atime = atime; - this.mtime = mtime; - this.ctime = ctime; - } - /** - * Handy function that converts the Inode to a Node Stats object. - */ - Inode.prototype.toStats = function () { - return new node_fs_stats.Stats((this.mode & 0xF000) === 16384 /* DIRECTORY */ ? 16384 /* DIRECTORY */ : 32768 /* FILE */, this.size, this.mode, new Date(this.atime), new Date(this.mtime), new Date(this.ctime)); - }; - - /** - * Get the size of this Inode, in bytes. - */ - Inode.prototype.getSize = function () { - // ASSUMPTION: ID is ASCII (1 byte per char). - return 30 + this.id.length; - }; - - /** - * Writes the inode into the start of the buffer. - */ - Inode.prototype.toBuffer = function (buff) { - if (typeof buff === "undefined") { buff = new buffer.Buffer(this.getSize()); } - buff.writeUInt32LE(this.size, 0); - buff.writeUInt16LE(this.mode, 4); - buff.writeDoubleLE(this.atime, 6); - buff.writeDoubleLE(this.mtime, 14); - buff.writeDoubleLE(this.ctime, 22); - buff.write(this.id, 30, this.id.length, 'ascii'); - return buff; - }; - - /** - * Updates the Inode using information from the stats object. Used by file - * systems at sync time, e.g.: - * - Program opens file and gets a File object. - * - Program mutates file. File object is responsible for maintaining - * metadata changes locally -- typically in a Stats object. - * - Program closes file. File object's metadata changes are synced with the - * file system. - * @return True if any changes have occurred. - */ - Inode.prototype.update = function (stats) { - var hasChanged = false; - if (this.size !== stats.size) { - this.size = stats.size; - hasChanged = true; - } - - if (this.mode !== stats.mode) { - this.mode = stats.mode; - hasChanged = true; - } - - var atimeMs = stats.atime.getTime(); - if (this.atime !== atimeMs) { - this.atime = atimeMs; - hasChanged = true; - } - - var mtimeMs = stats.mtime.getTime(); - if (this.mtime !== mtimeMs) { - this.mtime = mtimeMs; - hasChanged = true; - } - - var ctimeMs = stats.ctime.getTime(); - if (this.ctime !== ctimeMs) { - this.ctime = ctimeMs; - hasChanged = true; - } - - return hasChanged; - }; - - /** - * Converts the buffer into an Inode. - */ - Inode.fromBuffer = function (buffer) { - if (buffer === undefined) { - throw new Error("NO"); - } - return new Inode(buffer.toString('ascii', 30), buffer.readUInt32LE(0), buffer.readUInt16LE(4), buffer.readDoubleLE(6), buffer.readDoubleLE(14), buffer.readDoubleLE(22)); - }; - - // XXX: Copied from Stats. Should reconcile these two into something more - // compact. - /** - * @return [Boolean] True if this item is a file. - */ - Inode.prototype.isFile = function () { - return (this.mode & 0xF000) === 32768 /* FILE */; - }; - - /** - * @return [Boolean] True if this item is a directory. - */ - Inode.prototype.isDirectory = function () { - return (this.mode & 0xF000) === 16384 /* DIRECTORY */; - }; - return Inode; - })(); - - - return Inode; -}); -//# sourceMappingURL=inode.js.map -; -define('core/file',["require", "exports", './api_error'], function(require, exports, api_error) { - var ApiError = api_error.ApiError; - var ErrorCode = api_error.ErrorCode; - - /** - * Base class that contains shared implementations of functions for the file - * object. - * @class - */ - var BaseFile = (function () { - function BaseFile() { - } - BaseFile.prototype.sync = function (cb) { - cb(new ApiError(14 /* ENOTSUP */)); - }; - BaseFile.prototype.syncSync = function () { - throw new ApiError(14 /* ENOTSUP */); - }; - BaseFile.prototype.datasync = function (cb) { - this.sync(cb); - }; - BaseFile.prototype.datasyncSync = function () { - return this.syncSync(); - }; - BaseFile.prototype.chown = function (uid, gid, cb) { - cb(new ApiError(14 /* ENOTSUP */)); - }; - BaseFile.prototype.chownSync = function (uid, gid) { - throw new ApiError(14 /* ENOTSUP */); - }; - BaseFile.prototype.chmod = function (mode, cb) { - cb(new ApiError(14 /* ENOTSUP */)); - }; - BaseFile.prototype.chmodSync = function (mode) { - throw new ApiError(14 /* ENOTSUP */); - }; - BaseFile.prototype.utimes = function (atime, mtime, cb) { - cb(new ApiError(14 /* ENOTSUP */)); - }; - BaseFile.prototype.utimesSync = function (atime, mtime) { - throw new ApiError(14 /* ENOTSUP */); - }; - return BaseFile; - })(); - exports.BaseFile = BaseFile; -}); -//# sourceMappingURL=file.js.map -; -var __extends = this.__extends || function (d, b) { - for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; - function __() { this.constructor = d; } - __.prototype = b.prototype; - d.prototype = new __(); -}; -define('generic/preload_file',["require", "exports", '../core/file', '../core/buffer', '../core/api_error', '../core/node_fs'], function(require, exports, file, buffer, api_error, node_fs) { - var ApiError = api_error.ApiError; - var ErrorCode = api_error.ErrorCode; - var fs = node_fs.fs; - var Buffer = buffer.Buffer; - - /** - * An implementation of the File interface that operates on a file that is - * completely in-memory. PreloadFiles are backed by a Buffer. - * - * This is also an abstract class, as it lacks an implementation of 'sync' and - * 'close'. Each filesystem that wishes to use this file representation must - * extend this class and implement those two methods. - * @todo 'close' lever that disables functionality once closed. - */ - var PreloadFile = (function (_super) { - __extends(PreloadFile, _super); - /** - * Creates a file with the given path and, optionally, the given contents. Note - * that, if contents is specified, it will be mutated by the file! - * @param [BrowserFS.FileSystem] _fs The file system that created the file. - * @param [String] _path - * @param [BrowserFS.FileMode] _mode The mode that the file was opened using. - * Dictates permissions and where the file pointer starts. - * @param [BrowserFS.node.fs.Stats] _stat The stats object for the given file. - * PreloadFile will mutate this object. Note that this object must contain - * the appropriate mode that the file was opened as. - * @param [BrowserFS.node.Buffer?] contents A buffer containing the entire - * contents of the file. PreloadFile will mutate this buffer. If not - * specified, we assume it is a new file. - */ - function PreloadFile(_fs, _path, _flag, _stat, contents) { - _super.call(this); - this._pos = 0; - this._fs = _fs; - this._path = _path; - this._flag = _flag; - this._stat = _stat; - if (contents != null) { - this._buffer = contents; - } else { - // Empty buffer. It'll expand once we write stuff to it. - this._buffer = new Buffer(0); - } - - // Note: This invariant is *not* maintained once the file starts getting - // modified. - if (this._stat.size !== this._buffer.length) { - throw new Error("Invalid buffer: Buffer is " + this._buffer.length + " long, yet Stats object specifies that file is " + this._stat.size + " long."); - } - } - /** - * Get the path to this file. - * @return [String] The path to the file. - */ - PreloadFile.prototype.getPath = function () { - return this._path; - }; - - /** - * Get the current file position. - * - * We emulate the following bug mentioned in the Node documentation: - * > On Linux, positional writes don't work when the file is opened in append - * mode. The kernel ignores the position argument and always appends the data - * to the end of the file. - * @return [Number] The current file position. - */ - PreloadFile.prototype.getPos = function () { - if (this._flag.isAppendable()) { - return this._stat.size; - } - return this._pos; - }; - - /** - * Advance the current file position by the indicated number of positions. - * @param [Number] delta - */ - PreloadFile.prototype.advancePos = function (delta) { - return this._pos += delta; - }; - - /** - * Set the file position. - * @param [Number] newPos - */ - PreloadFile.prototype.setPos = function (newPos) { - return this._pos = newPos; - }; - - /** - * **Core**: Asynchronous sync. Must be implemented by subclasses of this - * class. - * @param [Function(BrowserFS.ApiError)] cb - */ - PreloadFile.prototype.sync = function (cb) { - try { - this.syncSync(); - cb(); - } catch (e) { - cb(e); - } - }; - - /** - * **Core**: Synchronous sync. - */ - PreloadFile.prototype.syncSync = function () { - throw new ApiError(14 /* ENOTSUP */); - }; - - /** - * **Core**: Asynchronous close. Must be implemented by subclasses of this - * class. - * @param [Function(BrowserFS.ApiError)] cb - */ - PreloadFile.prototype.close = function (cb) { - try { - this.closeSync(); - cb(); - } catch (e) { - cb(e); - } - }; - - /** - * **Core**: Synchronous close. - */ - PreloadFile.prototype.closeSync = function () { - throw new ApiError(14 /* ENOTSUP */); - }; - - /** - * Asynchronous `stat`. - * @param [Function(BrowserFS.ApiError, BrowserFS.node.fs.Stats)] cb - */ - PreloadFile.prototype.stat = function (cb) { - try { - cb(null, this._stat.clone()); - } catch (e) { - cb(e); - } - }; - - /** - * Synchronous `stat`. - */ - PreloadFile.prototype.statSync = function () { - return this._stat.clone(); - }; - - /** - * Asynchronous truncate. - * @param [Number] len - * @param [Function(BrowserFS.ApiError)] cb - */ - PreloadFile.prototype.truncate = function (len, cb) { - try { - this.truncateSync(len); - if (this._flag.isSynchronous() && !fs.getRootFS().supportsSynch()) { - this.sync(cb); - } - cb(); - } catch (e) { - return cb(e); - } - }; - - /** - * Synchronous truncate. - * @param [Number] len - */ - PreloadFile.prototype.truncateSync = function (len) { - if (!this._flag.isWriteable()) { - throw new ApiError(0 /* EPERM */, 'File not opened with a writeable mode.'); - } - this._stat.mtime = new Date(); - if (len > this._buffer.length) { - var buf = new Buffer(len - this._buffer.length); - buf.fill(0); - - // Write will set @_stat.size for us. - this.writeSync(buf, 0, buf.length, this._buffer.length); - if (this._flag.isSynchronous() && fs.getRootFS().supportsSynch()) { - this.syncSync(); - } - return; - } - this._stat.size = len; - - // Truncate buffer to 'len'. - var newBuff = new Buffer(len); - this._buffer.copy(newBuff, 0, 0, len); - this._buffer = newBuff; - if (this._flag.isSynchronous() && fs.getRootFS().supportsSynch()) { - this.syncSync(); - } - }; - - /** - * Write buffer to the file. - * Note that it is unsafe to use fs.write multiple times on the same file - * without waiting for the callback. - * @param [BrowserFS.node.Buffer] buffer Buffer containing the data to write to - * the file. - * @param [Number] offset Offset in the buffer to start reading data from. - * @param [Number] length The amount of bytes to write to the file. - * @param [Number] position Offset from the beginning of the file where this - * data should be written. If position is null, the data will be written at - * the current position. - * @param [Function(BrowserFS.ApiError, Number, BrowserFS.node.Buffer)] - * cb The number specifies the number of bytes written into the file. - */ - PreloadFile.prototype.write = function (buffer, offset, length, position, cb) { - try { - cb(null, this.writeSync(buffer, offset, length, position), buffer); - } catch (e) { - cb(e); - } - }; - - /** - * Write buffer to the file. - * Note that it is unsafe to use fs.writeSync multiple times on the same file - * without waiting for the callback. - * @param [BrowserFS.node.Buffer] buffer Buffer containing the data to write to - * the file. - * @param [Number] offset Offset in the buffer to start reading data from. - * @param [Number] length The amount of bytes to write to the file. - * @param [Number] position Offset from the beginning of the file where this - * data should be written. If position is null, the data will be written at - * the current position. - * @return [Number] - */ - PreloadFile.prototype.writeSync = function (buffer, offset, length, position) { - if (position == null) { - position = this.getPos(); - } - if (!this._flag.isWriteable()) { - throw new ApiError(0 /* EPERM */, 'File not opened with a writeable mode.'); - } - var endFp = position + length; - if (endFp > this._stat.size) { - this._stat.size = endFp; - if (endFp > this._buffer.length) { - // Extend the buffer! - var newBuff = new Buffer(endFp); - this._buffer.copy(newBuff); - this._buffer = newBuff; - } - } - var len = buffer.copy(this._buffer, position, offset, offset + length); - this._stat.mtime = new Date(); - if (this._flag.isSynchronous()) { - this.syncSync(); - return len; - } - this.setPos(position + len); - return len; - }; - - /** - * Read data from the file. - * @param [BrowserFS.node.Buffer] buffer The buffer that the data will be - * written to. - * @param [Number] offset The offset within the buffer where writing will - * start. - * @param [Number] length An integer specifying the number of bytes to read. - * @param [Number] position An integer specifying where to begin reading from - * in the file. If position is null, data will be read from the current file - * position. - * @param [Function(BrowserFS.ApiError, Number, BrowserFS.node.Buffer)] cb The - * number is the number of bytes read - */ - PreloadFile.prototype.read = function (buffer, offset, length, position, cb) { - try { - cb(null, this.readSync(buffer, offset, length, position), buffer); - } catch (e) { - cb(e); - } - }; - - /** - * Read data from the file. - * @param [BrowserFS.node.Buffer] buffer The buffer that the data will be - * written to. - * @param [Number] offset The offset within the buffer where writing will - * start. - * @param [Number] length An integer specifying the number of bytes to read. - * @param [Number] position An integer specifying where to begin reading from - * in the file. If position is null, data will be read from the current file - * position. - * @return [Number] - */ - PreloadFile.prototype.readSync = function (buffer, offset, length, position) { - if (!this._flag.isReadable()) { - throw new ApiError(0 /* EPERM */, 'File not opened with a readable mode.'); - } - if (position == null) { - position = this.getPos(); - } - var endRead = position + length; - if (endRead > this._stat.size) { - length = this._stat.size - position; - } - var rv = this._buffer.copy(buffer, offset, position, position + length); - this._stat.atime = new Date(); - this._pos = position + length; - return rv; - }; - - /** - * Asynchronous `fchmod`. - * @param [Number|String] mode - * @param [Function(BrowserFS.ApiError)] cb - */ - PreloadFile.prototype.chmod = function (mode, cb) { - try { - this.chmodSync(mode); - cb(); - } catch (e) { - cb(e); - } - }; - - /** - * Asynchronous `fchmod`. - * @param [Number] mode - */ - PreloadFile.prototype.chmodSync = function (mode) { - if (!this._fs.supportsProps()) { - throw new ApiError(14 /* ENOTSUP */); - } - this._stat.chmod(mode); - this.syncSync(); - }; - return PreloadFile; - })(file.BaseFile); - exports.PreloadFile = PreloadFile; - - /** - * File class for the InMemory and XHR file systems. - * Doesn't sync to anything, so it works nicely for memory-only files. - */ - var NoSyncFile = (function (_super) { - __extends(NoSyncFile, _super); - function NoSyncFile(_fs, _path, _flag, _stat, contents) { - _super.call(this, _fs, _path, _flag, _stat, contents); - } - /** - * Asynchronous sync. Doesn't do anything, simply calls the cb. - * @param [Function(BrowserFS.ApiError)] cb - */ - NoSyncFile.prototype.sync = function (cb) { - cb(); - }; - - /** - * Synchronous sync. Doesn't do anything. - */ - NoSyncFile.prototype.syncSync = function () { - }; - - /** - * Asynchronous close. Doesn't do anything, simply calls the cb. - * @param [Function(BrowserFS.ApiError)] cb - */ - NoSyncFile.prototype.close = function (cb) { - cb(); - }; - - /** - * Synchronous close. Doesn't do anything. - */ - NoSyncFile.prototype.closeSync = function () { - }; - return NoSyncFile; - })(PreloadFile); - exports.NoSyncFile = NoSyncFile; -}); -//# sourceMappingURL=preload_file.js.map -; -var __extends = this.__extends || function (d, b) { - for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; - function __() { this.constructor = d; } - __.prototype = b.prototype; - d.prototype = new __(); -}; -define('generic/key_value_filesystem',["require", "exports", '../core/file_system', '../core/api_error', '../core/node_fs_stats', '../core/node_path', '../generic/inode', '../core/buffer', '../generic/preload_file'], function(require, exports, file_system, api_error, node_fs_stats, node_path, Inode, buffer, preload_file) { - var ROOT_NODE_ID = "/", path = node_path.path, ApiError = api_error.ApiError, Buffer = buffer.Buffer; - - /** - * Generates a random ID. - */ - function GenerateRandomID() { - // From http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript - return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function (c) { - var r = Math.random() * 16 | 0, v = c == 'x' ? r : (r & 0x3 | 0x8); - return v.toString(16); - }); - } - - /** - * Helper function. Checks if 'e' is defined. If so, it triggers the callback - * with 'e' and returns false. Otherwise, returns true. - */ - function noError(e, cb) { - if (e) { - cb(e); - return false; - } - return true; - } - - /** - * Helper function. Checks if 'e' is defined. If so, it aborts the transaction, - * triggers the callback with 'e', and returns false. Otherwise, returns true. - */ - function noErrorTx(e, tx, cb) { - if (e) { - tx.abort(function () { - cb(e); - }); - return false; - } - return true; - } - - - - - - - - - - /** - * A simple RW transaction for simple synchronous key-value stores. - */ - var SimpleSyncRWTransaction = (function () { - function SimpleSyncRWTransaction(store) { - this.store = store; - /** - * Stores data in the keys we modify prior to modifying them. - * Allows us to roll back commits. - */ - this.originalData = {}; - /** - * List of keys modified in this transaction, if any. - */ - this.modifiedKeys = []; - } - /** - * Stashes given key value pair into `originalData` if it doesn't already - * exist. Allows us to stash values the program is requesting anyway to - * prevent needless `get` requests if the program modifies the data later - * on during the transaction. - */ - SimpleSyncRWTransaction.prototype.stashOldValue = function (key, value) { - // Keep only the earliest value in the transaction. - if (!this.originalData.hasOwnProperty(key)) { - this.originalData[key] = value; - } - }; - - /** - * Marks the given key as modified, and stashes its value if it has not been - * stashed already. - */ - SimpleSyncRWTransaction.prototype.markModified = function (key) { - if (this.modifiedKeys.indexOf(key) === -1) { - this.modifiedKeys.push(key); - if (!this.originalData.hasOwnProperty(key)) { - this.originalData[key] = this.store.get(key); - } - } - }; - - SimpleSyncRWTransaction.prototype.get = function (key) { - var val = this.store.get(key); - this.stashOldValue(key, val); - return val; - }; - - SimpleSyncRWTransaction.prototype.put = function (key, data, overwrite) { - this.markModified(key); - return this.store.put(key, data, overwrite); - }; - - SimpleSyncRWTransaction.prototype.delete = function (key) { - this.markModified(key); - this.store.delete(key); - }; - - SimpleSyncRWTransaction.prototype.commit = function () { - }; - SimpleSyncRWTransaction.prototype.abort = function () { - // Rollback old values. - var i, key, value; - for (i = 0; i < this.modifiedKeys.length; i++) { - key = this.modifiedKeys[i]; - value = this.originalData[key]; - if (value === null) { - // Key didn't exist. - this.store.delete(key); - } else { - // Key existed. Store old value. - this.store.put(key, value, true); - } - } - }; - return SimpleSyncRWTransaction; - })(); - exports.SimpleSyncRWTransaction = SimpleSyncRWTransaction; - - var SyncKeyValueFile = (function (_super) { - __extends(SyncKeyValueFile, _super); - function SyncKeyValueFile(_fs, _path, _flag, _stat, contents) { - _super.call(this, _fs, _path, _flag, _stat, contents); - } - SyncKeyValueFile.prototype.syncSync = function () { - this._fs._syncSync(this._path, this._buffer, this._stat); - }; - - SyncKeyValueFile.prototype.closeSync = function () { - this.syncSync(); - }; - return SyncKeyValueFile; - })(preload_file.PreloadFile); - exports.SyncKeyValueFile = SyncKeyValueFile; - - /** - * A "Synchronous key-value file system". Stores data to/retrieves data from an - * underlying key-value store. - * - * We use a unique ID for each node in the file system. The root node has a - * fixed ID. - * @todo Introduce Node ID caching. - * @todo Check modes. - */ - var SyncKeyValueFileSystem = (function (_super) { - __extends(SyncKeyValueFileSystem, _super); - function SyncKeyValueFileSystem(options) { - _super.call(this); - this.store = options.store; - - // INVARIANT: Ensure that the root exists. - this.makeRootDirectory(); - } - SyncKeyValueFileSystem.isAvailable = function () { - return true; - }; - SyncKeyValueFileSystem.prototype.getName = function () { - return this.store.name(); - }; - SyncKeyValueFileSystem.prototype.isReadOnly = function () { - return false; - }; - SyncKeyValueFileSystem.prototype.supportsSymlinks = function () { - return false; - }; - SyncKeyValueFileSystem.prototype.supportsProps = function () { - return false; - }; - SyncKeyValueFileSystem.prototype.supportsSynch = function () { - return true; - }; - - /** - * Checks if the root directory exists. Creates it if it doesn't. - */ - SyncKeyValueFileSystem.prototype.makeRootDirectory = function () { - var tx = this.store.beginTransaction('readwrite'); - if (tx.get(ROOT_NODE_ID) === undefined) { - // Create new inode. - var currTime = (new Date()).getTime(), dirInode = new Inode(GenerateRandomID(), 4096, 511 | 16384 /* DIRECTORY */, currTime, currTime, currTime); - - // If the root doesn't exist, the first random ID shouldn't exist, - // either. - tx.put(dirInode.id, new Buffer("{}"), false); - tx.put(ROOT_NODE_ID, dirInode.toBuffer(), false); - tx.commit(); - } - }; - - /** - * Helper function for findINode. - * @param parent The parent directory of the file we are attempting to find. - * @param filename The filename of the inode we are attempting to find, minus - * the parent. - * @return string The ID of the file's inode in the file system. - */ - SyncKeyValueFileSystem.prototype._findINode = function (tx, parent, filename) { - var _this = this; - var read_directory = function (inode) { - // Get the root's directory listing. - var dirList = _this.getDirListing(tx, parent, inode); - - // Get the file's ID. - if (dirList[filename]) { - return dirList[filename]; - } else { - throw ApiError.ENOENT(path.resolve(parent, filename)); - } - }; - if (parent === '/') { - if (filename === '') { - // BASE CASE #1: Return the root's ID. - return ROOT_NODE_ID; - } else { - // BASE CASE #2: Find the item in the root ndoe. - return read_directory(this.getINode(tx, parent, ROOT_NODE_ID)); - } - } else { - return read_directory(this.getINode(tx, parent + path.sep + filename, this._findINode(tx, path.dirname(parent), path.basename(parent)))); - } - }; - - /** - * Finds the Inode of the given path. - * @param p The path to look up. - * @return The Inode of the path p. - * @todo memoize/cache - */ - SyncKeyValueFileSystem.prototype.findINode = function (tx, p) { - return this.getINode(tx, p, this._findINode(tx, path.dirname(p), path.basename(p))); - }; - - /** - * Given the ID of a node, retrieves the corresponding Inode. - * @param tx The transaction to use. - * @param p The corresponding path to the file (used for error messages). - * @param id The ID to look up. - */ - SyncKeyValueFileSystem.prototype.getINode = function (tx, p, id) { - var inode = tx.get(id); - if (inode === undefined) { - throw ApiError.ENOENT(p); - } - return Inode.fromBuffer(inode); - }; - - /** - * Given the Inode of a directory, retrieves the corresponding directory - * listing. - */ - SyncKeyValueFileSystem.prototype.getDirListing = function (tx, p, inode) { - if (!inode.isDirectory()) { - throw ApiError.ENOTDIR(p); - } - var data = tx.get(inode.id); - if (data === undefined) { - throw ApiError.ENOENT(p); - } - return JSON.parse(data.toString()); - }; - - /** - * Creates a new node under a random ID. Retries 5 times before giving up in - * the exceedingly unlikely chance that we try to reuse a random GUID. - * @return The GUID that the data was stored under. - */ - SyncKeyValueFileSystem.prototype.addNewNode = function (tx, data) { - var retries = 0, currId; - while (retries < 5) { - try { - currId = GenerateRandomID(); - tx.put(currId, data, false); - return currId; - } catch (e) { - // Ignore and reroll. - } - } - throw new ApiError(2 /* EIO */, 'Unable to commit data to key-value store.'); - }; - - /** - * Commits a new file (well, a FILE or a DIRECTORY) to the file system with - * the given mode. - * Note: This will commit the transaction. - * @param p The path to the new file. - * @param type The type of the new file. - * @param mode The mode to create the new file with. - * @param data The data to store at the file's data node. - * @return The Inode for the new file. - */ - SyncKeyValueFileSystem.prototype.commitNewFile = function (tx, p, type, mode, data) { - var parentDir = path.dirname(p), fname = path.basename(p), parentNode = this.findINode(tx, parentDir), dirListing = this.getDirListing(tx, parentDir, parentNode), currTime = (new Date()).getTime(); - - // Invariant: The root always exists. - // If we don't check this prior to taking steps below, we will create a - // file with name '' in root should p == '/'. - if (p === '/') { - throw ApiError.EEXIST(p); - } - - // Check if file already exists. - if (dirListing[fname]) { - throw ApiError.EEXIST(p); - } - - try { - // Commit data. - var dataId = this.addNewNode(tx, data), fileNode = new Inode(dataId, data.length, mode | type, currTime, currTime, currTime), fileNodeId = this.addNewNode(tx, fileNode.toBuffer()); - - // Update and commit parent directory listing. - dirListing[fname] = fileNodeId; - tx.put(parentNode.id, new Buffer(JSON.stringify(dirListing)), true); - } catch (e) { - tx.abort(); - throw e; - } - tx.commit(); - return fileNode; - }; - - /** - * Delete all contents stored in the file system. - */ - SyncKeyValueFileSystem.prototype.empty = function () { - this.store.clear(); - - // INVARIANT: Root always exists. - this.makeRootDirectory(); - }; - - SyncKeyValueFileSystem.prototype.renameSync = function (oldPath, newPath) { - var tx = this.store.beginTransaction('readwrite'), oldParent = path.dirname(oldPath), oldName = path.basename(oldPath), newParent = path.dirname(newPath), newName = path.basename(newPath), oldDirNode = this.findINode(tx, oldParent), oldDirList = this.getDirListing(tx, oldParent, oldDirNode); - if (!oldDirList[oldName]) { - throw ApiError.ENOENT(oldPath); - } - var nodeId = oldDirList[oldName]; - delete oldDirList[oldName]; - - // Invariant: Can't move a folder inside itself. - // This funny little hack ensures that the check passes only if oldPath - // is a subpath of newParent. We append '/' to avoid matching folders that - // are a substring of the bottom-most folder in the path. - if ((newParent + '/').indexOf(oldPath + '/') === 0) { - throw new ApiError(5 /* EBUSY */, oldParent); - } - - // Add newPath to parent's directory listing. - var newDirNode, newDirList; - if (newParent === oldParent) { - // Prevent us from re-grabbing the same directory listing, which still - // contains oldName. - newDirNode = oldDirNode; - newDirList = oldDirList; - } else { - newDirNode = this.findINode(tx, newParent); - newDirList = this.getDirListing(tx, newParent, newDirNode); - } - - if (newDirList[newName]) { - // If it's a file, delete it. - var newNameNode = this.getINode(tx, newPath, newDirList[newName]); - if (newNameNode.isFile()) { - try { - tx.delete(newNameNode.id); - tx.delete(newDirList[newName]); - } catch (e) { - tx.abort(); - throw e; - } - } else { - throw ApiError.EPERM(newPath); - } - } - newDirList[newName] = nodeId; - - try { - tx.put(oldDirNode.id, new Buffer(JSON.stringify(oldDirList)), true); - tx.put(newDirNode.id, new Buffer(JSON.stringify(newDirList)), true); - } catch (e) { - tx.abort(); - throw e; - } - - tx.commit(); - }; - - SyncKeyValueFileSystem.prototype.statSync = function (p, isLstat) { - // Get the inode to the item, convert it into a Stats object. - return this.findINode(this.store.beginTransaction('readonly'), p).toStats(); - }; - - SyncKeyValueFileSystem.prototype.createFileSync = function (p, flag, mode) { - var tx = this.store.beginTransaction('readwrite'), data = new Buffer(0), newFile = this.commitNewFile(tx, p, 32768 /* FILE */, mode, data); - - // Open the file. - return new SyncKeyValueFile(this, p, flag, newFile.toStats(), data); - }; - - SyncKeyValueFileSystem.prototype.openFileSync = function (p, flag) { - var tx = this.store.beginTransaction('readonly'), node = this.findINode(tx, p), data = tx.get(node.id); - if (data === undefined) { - throw ApiError.ENOENT(p); - } - return new SyncKeyValueFile(this, p, flag, node.toStats(), data); - }; - - /** - * Remove all traces of the given path from the file system. - * @param p The path to remove from the file system. - * @param isDir Does the path belong to a directory, or a file? - * @todo Update mtime. - */ - SyncKeyValueFileSystem.prototype.removeEntry = function (p, isDir) { - var tx = this.store.beginTransaction('readwrite'), parent = path.dirname(p), parentNode = this.findINode(tx, parent), parentListing = this.getDirListing(tx, parent, parentNode), fileName = path.basename(p); - - if (!parentListing[fileName]) { - throw ApiError.ENOENT(p); - } - - // Remove from directory listing of parent. - var fileNodeId = parentListing[fileName]; - delete parentListing[fileName]; - - // Get file inode. - var fileNode = this.getINode(tx, p, fileNodeId); - if (!isDir && fileNode.isDirectory()) { - throw ApiError.EISDIR(p); - } else if (isDir && !fileNode.isDirectory()) { - throw ApiError.ENOTDIR(p); - } - - try { - // Delete data. - tx.delete(fileNode.id); - - // Delete node. - tx.delete(fileNodeId); - - // Update directory listing. - tx.put(parentNode.id, new Buffer(JSON.stringify(parentListing)), true); - } catch (e) { - tx.abort(); - throw e; - } - - // Success. - tx.commit(); - }; - - SyncKeyValueFileSystem.prototype.unlinkSync = function (p) { - this.removeEntry(p, false); - }; - - SyncKeyValueFileSystem.prototype.rmdirSync = function (p) { - this.removeEntry(p, true); - }; - - SyncKeyValueFileSystem.prototype.mkdirSync = function (p, mode) { - var tx = this.store.beginTransaction('readwrite'), data = new Buffer('{}'); - this.commitNewFile(tx, p, 16384 /* DIRECTORY */, mode, data); - }; - - SyncKeyValueFileSystem.prototype.readdirSync = function (p) { - var tx = this.store.beginTransaction('readonly'); - return Object.keys(this.getDirListing(tx, p, this.findINode(tx, p))); - }; - - SyncKeyValueFileSystem.prototype._syncSync = function (p, data, stats) { - // @todo Ensure mtime updates properly, and use that to determine if a data - // update is required. - var tx = this.store.beginTransaction('readwrite'), fileInodeId = this._findINode(tx, path.dirname(p), path.basename(p)), fileInode = this.getINode(tx, p, fileInodeId), inodeChanged = fileInode.update(stats); - - try { - // Sync data. - tx.put(fileInode.id, data, true); - - // Sync metadata. - if (inodeChanged) { - tx.put(fileInodeId, fileInode.toBuffer(), true); - } - } catch (e) { - tx.abort(); - throw e; - } - tx.commit(); - }; - return SyncKeyValueFileSystem; - })(file_system.SynchronousFileSystem); - exports.SyncKeyValueFileSystem = SyncKeyValueFileSystem; - - - - - - - - var AsyncKeyValueFile = (function (_super) { - __extends(AsyncKeyValueFile, _super); - function AsyncKeyValueFile(_fs, _path, _flag, _stat, contents) { - _super.call(this, _fs, _path, _flag, _stat, contents); - } - AsyncKeyValueFile.prototype.sync = function (cb) { - this._fs._sync(this._path, this._buffer, this._stat, cb); - }; - - AsyncKeyValueFile.prototype.close = function (cb) { - this.sync(cb); - }; - return AsyncKeyValueFile; - })(preload_file.PreloadFile); - exports.AsyncKeyValueFile = AsyncKeyValueFile; - - /** - * An "Asynchronous key-value file system". Stores data to/retrieves data from - * an underlying asynchronous key-value store. - */ - var AsyncKeyValueFileSystem = (function (_super) { - __extends(AsyncKeyValueFileSystem, _super); - function AsyncKeyValueFileSystem() { - _super.apply(this, arguments); - } - /** - * Initializes the file system. Typically called by subclasses' async - * constructors. - */ - AsyncKeyValueFileSystem.prototype.init = function (store, cb) { - this.store = store; - - // INVARIANT: Ensure that the root exists. - this.makeRootDirectory(cb); - }; - - AsyncKeyValueFileSystem.isAvailable = function () { - return true; - }; - AsyncKeyValueFileSystem.prototype.getName = function () { - return this.store.name(); - }; - AsyncKeyValueFileSystem.prototype.isReadOnly = function () { - return false; - }; - AsyncKeyValueFileSystem.prototype.supportsSymlinks = function () { - return false; - }; - AsyncKeyValueFileSystem.prototype.supportsProps = function () { - return false; - }; - AsyncKeyValueFileSystem.prototype.supportsSynch = function () { - return false; - }; - - /** - * Checks if the root directory exists. Creates it if it doesn't. - */ - AsyncKeyValueFileSystem.prototype.makeRootDirectory = function (cb) { - var tx = this.store.beginTransaction('readwrite'); - tx.get(ROOT_NODE_ID, function (e, data) { - if (e || data === undefined) { - // Create new inode. - var currTime = (new Date()).getTime(), dirInode = new Inode(GenerateRandomID(), 4096, 511 | 16384 /* DIRECTORY */, currTime, currTime, currTime); - - // If the root doesn't exist, the first random ID shouldn't exist, - // either. - tx.put(dirInode.id, new Buffer("{}"), false, function (e) { - if (noErrorTx(e, tx, cb)) { - tx.put(ROOT_NODE_ID, dirInode.toBuffer(), false, function (e) { - if (e) { - tx.abort(function () { - cb(e); - }); - } else { - tx.commit(cb); - } - }); - } - }); - } else { - // We're good. - tx.commit(cb); - } - }); - }; - - /** - * Helper function for findINode. - * @param parent The parent directory of the file we are attempting to find. - * @param filename The filename of the inode we are attempting to find, minus - * the parent. - * @param cb Passed an error or the ID of the file's inode in the file system. - */ - AsyncKeyValueFileSystem.prototype._findINode = function (tx, parent, filename, cb) { - var _this = this; - var handle_directory_listings = function (e, inode, dirList) { - if (e) { - cb(e); - } else if (dirList[filename]) { - cb(null, dirList[filename]); - } else { - cb(ApiError.ENOENT(path.resolve(parent, filename))); - } - }; - - if (parent === '/') { - if (filename === '') { - // BASE CASE #1: Return the root's ID. - cb(null, ROOT_NODE_ID); - } else { - // BASE CASE #2: Find the item in the root node. - this.getINode(tx, parent, ROOT_NODE_ID, function (e, inode) { - if (noError(e, cb)) { - _this.getDirListing(tx, parent, inode, function (e, dirList) { - // handle_directory_listings will handle e for us. - handle_directory_listings(e, inode, dirList); - }); - } - }); - } - } else { - // Get the parent directory's INode, and find the file in its directory - // listing. - this.findINodeAndDirListing(tx, parent, handle_directory_listings); - } - }; - - /** - * Finds the Inode of the given path. - * @param p The path to look up. - * @param cb Passed an error or the Inode of the path p. - * @todo memoize/cache - */ - AsyncKeyValueFileSystem.prototype.findINode = function (tx, p, cb) { - var _this = this; - this._findINode(tx, path.dirname(p), path.basename(p), function (e, id) { - if (noError(e, cb)) { - _this.getINode(tx, p, id, cb); - } - }); - }; - - /** - * Given the ID of a node, retrieves the corresponding Inode. - * @param tx The transaction to use. - * @param p The corresponding path to the file (used for error messages). - * @param id The ID to look up. - * @param cb Passed an error or the inode under the given id. - */ - AsyncKeyValueFileSystem.prototype.getINode = function (tx, p, id, cb) { - tx.get(id, function (e, data) { - if (noError(e, cb)) { - if (data === undefined) { - cb(ApiError.ENOENT(p)); - } else { - cb(null, Inode.fromBuffer(data)); - } - } - }); - }; - - /** - * Given the Inode of a directory, retrieves the corresponding directory - * listing. - */ - AsyncKeyValueFileSystem.prototype.getDirListing = function (tx, p, inode, cb) { - if (!inode.isDirectory()) { - cb(ApiError.ENOTDIR(p)); - } else { - tx.get(inode.id, function (e, data) { - if (noError(e, cb)) { - try { - cb(null, JSON.parse(data.toString())); - } catch (e) { - // Occurs when data is undefined, or corresponds to something other - // than a directory listing. The latter should never occur unless - // the file system is corrupted. - cb(ApiError.ENOENT(p)); - } - } - }); - } - }; - - /** - * Given a path to a directory, retrieves the corresponding INode and - * directory listing. - */ - AsyncKeyValueFileSystem.prototype.findINodeAndDirListing = function (tx, p, cb) { - var _this = this; - this.findINode(tx, p, function (e, inode) { - if (noError(e, cb)) { - _this.getDirListing(tx, p, inode, function (e, listing) { - if (noError(e, cb)) { - cb(null, inode, listing); - } - }); - } - }); - }; - - /** - * Adds a new node under a random ID. Retries 5 times before giving up in - * the exceedingly unlikely chance that we try to reuse a random GUID. - * @param cb Passed an error or the GUID that the data was stored under. - */ - AsyncKeyValueFileSystem.prototype.addNewNode = function (tx, data, cb) { - var retries = 0, currId, reroll = function () { - if (++retries === 5) { - // Max retries hit. Return with an error. - cb(new ApiError(2 /* EIO */, 'Unable to commit data to key-value store.')); - } else { - // Try again. - currId = GenerateRandomID(); - tx.put(currId, data, false, function (e, committed) { - if (e || !committed) { - reroll(); - } else { - // Successfully stored under 'currId'. - cb(null, currId); - } - }); - } - }; - reroll(); - }; - - /** - * Commits a new file (well, a FILE or a DIRECTORY) to the file system with - * the given mode. - * Note: This will commit the transaction. - * @param p The path to the new file. - * @param type The type of the new file. - * @param mode The mode to create the new file with. - * @param data The data to store at the file's data node. - * @param cb Passed an error or the Inode for the new file. - */ - AsyncKeyValueFileSystem.prototype.commitNewFile = function (tx, p, type, mode, data, cb) { - var _this = this; - var parentDir = path.dirname(p), fname = path.basename(p), currTime = (new Date()).getTime(); - - // Invariant: The root always exists. - // If we don't check this prior to taking steps below, we will create a - // file with name '' in root should p == '/'. - if (p === '/') { - return cb(ApiError.EEXIST(p)); - } - - // Let's build a pyramid of code! - // Step 1: Get the parent directory's inode and directory listing - this.findINodeAndDirListing(tx, parentDir, function (e, parentNode, dirListing) { - if (noErrorTx(e, tx, cb)) { - if (dirListing[fname]) { - // File already exists. - tx.abort(function () { - cb(ApiError.EEXIST(p)); - }); - } else { - // Step 2: Commit data to store. - _this.addNewNode(tx, data, function (e, dataId) { - if (noErrorTx(e, tx, cb)) { - // Step 3: Commit the file's inode to the store. - var fileInode = new Inode(dataId, data.length, mode | type, currTime, currTime, currTime); - _this.addNewNode(tx, fileInode.toBuffer(), function (e, fileInodeId) { - if (noErrorTx(e, tx, cb)) { - // Step 4: Update parent directory's listing. - dirListing[fname] = fileInodeId; - tx.put(parentNode.id, new Buffer(JSON.stringify(dirListing)), true, function (e) { - if (noErrorTx(e, tx, cb)) { - // Step 5: Commit and return the new inode. - tx.commit(function (e) { - if (noErrorTx(e, tx, cb)) { - cb(null, fileInode); - } - }); - } - }); - } - }); - } - }); - } - } - }); - }; - - /** - * Delete all contents stored in the file system. - */ - AsyncKeyValueFileSystem.prototype.empty = function (cb) { - var _this = this; - this.store.clear(function (e) { - if (noError(e, cb)) { - // INVARIANT: Root always exists. - _this.makeRootDirectory(cb); - } - }); - }; - - AsyncKeyValueFileSystem.prototype.rename = function (oldPath, newPath, cb) { - var _this = this; - var tx = this.store.beginTransaction('readwrite'), oldParent = path.dirname(oldPath), oldName = path.basename(oldPath), newParent = path.dirname(newPath), newName = path.basename(newPath), inodes = {}, lists = {}, errorOccurred = false; - - // Invariant: Can't move a folder inside itself. - // This funny little hack ensures that the check passes only if oldPath - // is a subpath of newParent. We append '/' to avoid matching folders that - // are a substring of the bottom-most folder in the path. - if ((newParent + '/').indexOf(oldPath + '/') === 0) { - return cb(new ApiError(5 /* EBUSY */, oldParent)); - } - - /** - * Responsible for Phase 2 of the rename operation: Modifying and - * committing the directory listings. Called once we have successfully - * retrieved both the old and new parent's inodes and listings. - */ - var theOleSwitcharoo = function () { - // Sanity check: Ensure both paths are present, and no error has occurred. - if (errorOccurred || !lists.hasOwnProperty(oldParent) || !lists.hasOwnProperty(newParent)) { - return; - } - var oldParentList = lists[oldParent], oldParentINode = inodes[oldParent], newParentList = lists[newParent], newParentINode = inodes[newParent]; - - // Delete file from old parent. - if (!oldParentList[oldName]) { - cb(ApiError.ENOENT(oldPath)); - } else { - var fileId = oldParentList[oldName]; - delete oldParentList[oldName]; - - // Finishes off the renaming process by adding the file to the new - // parent. - var completeRename = function () { - newParentList[newName] = fileId; - - // Commit old parent's list. - tx.put(oldParentINode.id, new Buffer(JSON.stringify(oldParentList)), true, function (e) { - if (noErrorTx(e, tx, cb)) { - if (oldParent === newParent) { - // DONE! - tx.commit(cb); - } else { - // Commit new parent's list. - tx.put(newParentINode.id, new Buffer(JSON.stringify(newParentList)), true, function (e) { - if (noErrorTx(e, tx, cb)) { - tx.commit(cb); - } - }); - } - } - }); - }; - - if (newParentList[newName]) { - // 'newPath' already exists. Check if it's a file or a directory, and - // act accordingly. - _this.getINode(tx, newPath, newParentList[newName], function (e, inode) { - if (noErrorTx(e, tx, cb)) { - if (inode.isFile()) { - // Delete the file and continue. - tx.delete(inode.id, function (e) { - if (noErrorTx(e, tx, cb)) { - tx.delete(newParentList[newName], function (e) { - if (noErrorTx(e, tx, cb)) { - completeRename(); - } - }); - } - }); - } else { - // Can't overwrite a directory using rename. - tx.abort(function (e) { - cb(ApiError.EPERM(newPath)); - }); - } - } - }); - } else { - completeRename(); - } - } - }; - - /** - * Grabs a path's inode and directory listing, and shoves it into the - * inodes and lists hashes. - */ - var processInodeAndListings = function (p) { - _this.findINodeAndDirListing(tx, p, function (e, node, dirList) { - if (e) { - if (!errorOccurred) { - errorOccurred = true; - tx.abort(function () { - cb(e); - }); - } - // If error has occurred already, just stop here. - } else { - inodes[p] = node; - lists[p] = dirList; - theOleSwitcharoo(); - } - }); - }; - - processInodeAndListings(oldParent); - if (oldParent !== newParent) { - processInodeAndListings(newParent); - } - }; - - AsyncKeyValueFileSystem.prototype.stat = function (p, isLstat, cb) { - var tx = this.store.beginTransaction('readonly'); - this.findINode(tx, p, function (e, inode) { - if (noError(e, cb)) { - cb(null, inode.toStats()); - } - }); - }; - - AsyncKeyValueFileSystem.prototype.createFile = function (p, flag, mode, cb) { - var _this = this; - var tx = this.store.beginTransaction('readwrite'), data = new Buffer(0); - - this.commitNewFile(tx, p, 32768 /* FILE */, mode, data, function (e, newFile) { - if (noError(e, cb)) { - cb(null, new AsyncKeyValueFile(_this, p, flag, newFile.toStats(), data)); - } - }); - }; - - AsyncKeyValueFileSystem.prototype.openFile = function (p, flag, cb) { - var _this = this; - var tx = this.store.beginTransaction('readonly'); - - // Step 1: Grab the file's inode. - this.findINode(tx, p, function (e, inode) { - if (noError(e, cb)) { - // Step 2: Grab the file's data. - tx.get(inode.id, function (e, data) { - if (noError(e, cb)) { - if (data === undefined) { - cb(ApiError.ENOENT(p)); - } else { - cb(null, new AsyncKeyValueFile(_this, p, flag, inode.toStats(), data)); - } - } - }); - } - }); - }; - - /** - * Remove all traces of the given path from the file system. - * @param p The path to remove from the file system. - * @param isDir Does the path belong to a directory, or a file? - * @todo Update mtime. - */ - AsyncKeyValueFileSystem.prototype.removeEntry = function (p, isDir, cb) { - var _this = this; - var tx = this.store.beginTransaction('readwrite'), parent = path.dirname(p), fileName = path.basename(p); - - // Step 1: Get parent directory's node and directory listing. - this.findINodeAndDirListing(tx, parent, function (e, parentNode, parentListing) { - if (noErrorTx(e, tx, cb)) { - if (!parentListing[fileName]) { - tx.abort(function () { - cb(ApiError.ENOENT(p)); - }); - } else { - // Remove from directory listing of parent. - var fileNodeId = parentListing[fileName]; - delete parentListing[fileName]; - - // Step 2: Get file inode. - _this.getINode(tx, p, fileNodeId, function (e, fileNode) { - if (noErrorTx(e, tx, cb)) { - if (!isDir && fileNode.isDirectory()) { - tx.abort(function () { - cb(ApiError.EISDIR(p)); - }); - } else if (isDir && !fileNode.isDirectory()) { - tx.abort(function () { - cb(ApiError.ENOTDIR(p)); - }); - } else { - // Step 3: Delete data. - tx.delete(fileNode.id, function (e) { - if (noErrorTx(e, tx, cb)) { - // Step 4: Delete node. - tx.delete(fileNodeId, function (e) { - if (noErrorTx(e, tx, cb)) { - // Step 5: Update directory listing. - tx.put(parentNode.id, new Buffer(JSON.stringify(parentListing)), true, function (e) { - if (noErrorTx(e, tx, cb)) { - tx.commit(cb); - } - }); - } - }); - } - }); - } - } - }); - } - } - }); - }; - - AsyncKeyValueFileSystem.prototype.unlink = function (p, cb) { - this.removeEntry(p, false, cb); - }; - - AsyncKeyValueFileSystem.prototype.rmdir = function (p, cb) { - this.removeEntry(p, true, cb); - }; - - AsyncKeyValueFileSystem.prototype.mkdir = function (p, mode, cb) { - var tx = this.store.beginTransaction('readwrite'), data = new Buffer('{}'); - this.commitNewFile(tx, p, 16384 /* DIRECTORY */, mode, data, cb); - }; - - AsyncKeyValueFileSystem.prototype.readdir = function (p, cb) { - var _this = this; - var tx = this.store.beginTransaction('readonly'); - this.findINode(tx, p, function (e, inode) { - if (noError(e, cb)) { - _this.getDirListing(tx, p, inode, function (e, dirListing) { - if (noError(e, cb)) { - cb(null, Object.keys(dirListing)); - } - }); - } - }); - }; - - AsyncKeyValueFileSystem.prototype._sync = function (p, data, stats, cb) { - var _this = this; - // @todo Ensure mtime updates properly, and use that to determine if a data - // update is required. - var tx = this.store.beginTransaction('readwrite'); - - // Step 1: Get the file node's ID. - this._findINode(tx, path.dirname(p), path.basename(p), function (e, fileInodeId) { - if (noErrorTx(e, tx, cb)) { - // Step 2: Get the file inode. - _this.getINode(tx, p, fileInodeId, function (e, fileInode) { - if (noErrorTx(e, tx, cb)) { - var inodeChanged = fileInode.update(stats); - - // Step 3: Sync the data. - tx.put(fileInode.id, data, true, function (e) { - if (noErrorTx(e, tx, cb)) { - // Step 4: Sync the metadata (if it changed)! - if (inodeChanged) { - tx.put(fileInodeId, fileInode.toBuffer(), true, function (e) { - if (noErrorTx(e, tx, cb)) { - tx.commit(cb); - } - }); - } else { - // No need to sync metadata; return. - tx.commit(cb); - } - } - }); - } - }); - } - }); - }; - return AsyncKeyValueFileSystem; - })(file_system.BaseFileSystem); - exports.AsyncKeyValueFileSystem = AsyncKeyValueFileSystem; -}); -//# sourceMappingURL=key_value_filesystem.js.map -; -define('core/global',["require", "exports"], function(require, exports) { - /** - * Exports the global scope variable. - * In the main browser thread, this is "window". - * In a WebWorker, this is "self". - * In Node, this is "global". - */ - var toExport; - if (typeof (window) !== 'undefined') { - toExport = window; - } else if (typeof (self) !== 'undefined') { - toExport = self; - } else { - toExport = global; - } - - return toExport; -}); -//# sourceMappingURL=global.js.map -; -var __extends = this.__extends || function (d, b) { - for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; - function __() { this.constructor = d; } - __.prototype = b.prototype; - d.prototype = new __(); -}; -define('backend/IndexedDB',["require", "exports", '../core/buffer', '../core/browserfs', '../generic/key_value_filesystem', '../core/api_error', '../core/buffer_core_arraybuffer', '../core/global'], function(require, exports, buffer, browserfs, kvfs, api_error, buffer_core_arraybuffer, global) { - var Buffer = buffer.Buffer, ApiError = api_error.ApiError, ErrorCode = api_error.ErrorCode, indexedDB = global.indexedDB || global.mozIndexedDB || global.webkitIndexedDB || global.msIndexedDB; - - /** - * Converts a DOMException or a DOMError from an IndexedDB event into a - * standardized BrowserFS API error. - */ - function convertError(e, message) { - if (typeof message === "undefined") { message = e.toString(); } - switch (e.name) { - case "NotFoundError": - return new ApiError(1 /* ENOENT */, message); - case "QuotaExceededError": - return new ApiError(11 /* ENOSPC */, message); - default: - // The rest do not seem to map cleanly to standard error codes. - return new ApiError(2 /* EIO */, message); - } - } - - /** - * Produces a new onerror handler for IDB. Our errors are always fatal, so we - * handle them generically: Call the user-supplied callback with a translated - * version of the error, and let the error bubble up. - */ - function onErrorHandler(cb, code, message) { - if (typeof code === "undefined") { code = 2 /* EIO */; } - if (typeof message === "undefined") { message = null; } - return function (e) { - // Prevent the error from canceling the transaction. - e.preventDefault(); - cb(new ApiError(code, message)); - }; - } - - /** - * Converts a NodeBuffer into an ArrayBuffer. - */ - function buffer2arraybuffer(buffer) { - // XXX: Typing hack. - var backing_mem = buffer.getBufferCore(); - if (!(backing_mem instanceof buffer_core_arraybuffer.BufferCoreArrayBuffer)) { - // Copy into an ArrayBuffer-backed Buffer. - buffer = new Buffer(this._buffer.length); - this._buffer.copy(buffer); - backing_mem = buffer.getBufferCore(); - } - - // Reach into the BC, grab the DV. - var dv = backing_mem.getDataView(); - return dv.buffer; - } - - var IndexedDBROTransaction = (function () { - function IndexedDBROTransaction(tx, store) { - this.tx = tx; - this.store = store; - } - IndexedDBROTransaction.prototype.get = function (key, cb) { - try { - var r = this.store.get(key); - r.onerror = onErrorHandler(cb); - r.onsuccess = function (event) { - // IDB returns the value 'undefined' when you try to get keys that - // don't exist. The caller expects this behavior. - var result = event.target.result; - if (result === undefined) { - cb(null, result); - } else { - // IDB data is stored as an ArrayBuffer - cb(null, new Buffer(result)); - } - }; - } catch (e) { - cb(convertError(e)); - } - }; - return IndexedDBROTransaction; - })(); - exports.IndexedDBROTransaction = IndexedDBROTransaction; - - var IndexedDBRWTransaction = (function (_super) { - __extends(IndexedDBRWTransaction, _super); - function IndexedDBRWTransaction(tx, store) { - _super.call(this, tx, store); - } - IndexedDBRWTransaction.prototype.put = function (key, data, overwrite, cb) { - try { - var arraybuffer = buffer2arraybuffer(data), r; - if (overwrite) { - r = this.store.put(arraybuffer, key); - } else { - // 'add' will never overwrite an existing key. - r = this.store.add(arraybuffer, key); - } - - // XXX: NEED TO RETURN FALSE WHEN ADD HAS A KEY CONFLICT. NO ERROR. - r.onerror = onErrorHandler(cb); - r.onsuccess = function (event) { - cb(null, true); - }; - } catch (e) { - cb(convertError(e)); - } - }; - - IndexedDBRWTransaction.prototype.delete = function (key, cb) { - try { - var r = this.store.delete(key); - r.onerror = onErrorHandler(cb); - r.onsuccess = function (event) { - cb(); - }; - } catch (e) { - cb(convertError(e)); - } - }; - - IndexedDBRWTransaction.prototype.commit = function (cb) { - // Return to the event loop to commit the transaction. - setTimeout(cb, 0); - }; - - IndexedDBRWTransaction.prototype.abort = function (cb) { - var _e; - try { - this.tx.abort(); - } catch (e) { - _e = convertError(e); - } finally { - cb(_e); - } - }; - return IndexedDBRWTransaction; - })(IndexedDBROTransaction); - exports.IndexedDBRWTransaction = IndexedDBRWTransaction; - - var IndexedDBStore = (function () { - /** - * Constructs an IndexedDB file system. - * @param cb Called once the database is instantiated and ready for use. - * Passes an error if there was an issue instantiating the database. - * @param objectStoreName The name of this file system. You can have - * multiple IndexedDB file systems operating at once, but each must have - * a different name. - */ - function IndexedDBStore(cb, storeName) { - if (typeof storeName === "undefined") { storeName = 'browserfs'; } - var _this = this; - this.storeName = storeName; - var openReq = indexedDB.open(this.storeName, 1); - - openReq.onupgradeneeded = function (event) { - var db = event.target.result; - - // Huh. This should never happen; we're at version 1. Why does another - // database exist? - if (db.objectStoreNames.contains(_this.storeName)) { - db.deleteObjectStore(_this.storeName); - } - db.createObjectStore(_this.storeName); - }; - - openReq.onsuccess = function (event) { - _this.db = event.target.result; - cb(null, _this); - }; - - openReq.onerror = onErrorHandler(cb, 4 /* EACCES */); - } - IndexedDBStore.prototype.name = function () { - return "IndexedDB - " + this.storeName; - }; - - IndexedDBStore.prototype.clear = function (cb) { - try { - var tx = this.db.transaction(this.storeName, 'readwrite'), objectStore = tx.objectStore(this.storeName), r = objectStore.clear(); - r.onsuccess = function (event) { - // Use setTimeout to commit transaction. - setTimeout(cb, 0); - }; - r.onerror = onErrorHandler(cb); - } catch (e) { - cb(convertError(e)); - } - }; - - IndexedDBStore.prototype.beginTransaction = function (type) { - if (typeof type === "undefined") { type = 'readonly'; } - var tx = this.db.transaction(this.storeName, type), objectStore = tx.objectStore(this.storeName); - if (type === 'readwrite') { - return new IndexedDBRWTransaction(tx, objectStore); - } else if (type === 'readonly') { - return new IndexedDBROTransaction(tx, objectStore); - } else { - throw new ApiError(9 /* EINVAL */, 'Invalid transaction type.'); - } - }; - return IndexedDBStore; - })(); - exports.IndexedDBStore = IndexedDBStore; - - /** - * A file system that uses the IndexedDB key value file system. - */ - var IndexedDBFileSystem = (function (_super) { - __extends(IndexedDBFileSystem, _super); - function IndexedDBFileSystem(cb, storeName) { - var _this = this; - _super.call(this); - new IndexedDBStore(function (e, store) { - if (e) { - cb(e); - } else { - _this.init(store, function (e) { - cb(e, _this); - }); - } - }, storeName); - } - IndexedDBFileSystem.isAvailable = function () { - return typeof indexedDB !== 'undefined'; - }; - return IndexedDBFileSystem; - })(kvfs.AsyncKeyValueFileSystem); - exports.IndexedDBFileSystem = IndexedDBFileSystem; - - browserfs.registerFileSystem('IndexedDB', IndexedDBFileSystem); -}); -//# sourceMappingURL=IndexedDB.js.map -; -define('generic/file_index',["require", "exports", '../core/node_fs_stats', '../core/node_path'], function(require, exports, node_fs_stats, node_path) { - var Stats = node_fs_stats.Stats; - var path = node_path.path; - - /** - * A simple class for storing a filesystem index. Assumes that all paths passed - * to it are *absolute* paths. - * - * Can be used as a partial or a full index, although care must be taken if used - * for the former purpose, especially when directories are concerned. - */ - var FileIndex = (function () { - /** - * Constructs a new FileIndex. - */ - function FileIndex() { - // _index is a single-level key,value store that maps *directory* paths to - // DirInodes. File information is only contained in DirInodes themselves. - this._index = {}; - - // Create the root directory. - this.addPath('/', new DirInode()); - } - /** - * Split into a (directory path, item name) pair - */ - FileIndex.prototype._split_path = function (p) { - var dirpath = path.dirname(p); - var itemname = p.substr(dirpath.length + (dirpath === "/" ? 0 : 1)); - return [dirpath, itemname]; - }; - - /** - * Runs the given function over all files in the index. - */ - FileIndex.prototype.fileIterator = function (cb) { - for (var path in this._index) { - var dir = this._index[path]; - var files = dir.getListing(); - for (var i = 0; i < files.length; i++) { - var item = dir.getItem(files[i]); - if (item.isFile()) { - cb(item.getData()); - } - } - } - }; - - /** - * Adds the given absolute path to the index if it is not already in the index. - * Creates any needed parent directories. - * @param [String] path The path to add to the index. - * @param [BrowserFS.FileInode | BrowserFS.DirInode] inode The inode for the - * path to add. - * @return [Boolean] 'True' if it was added or already exists, 'false' if there - * was an issue adding it (e.g. item in path is a file, item exists but is - * different). - * @todo If adding fails and implicitly creates directories, we do not clean up - * the new empty directories. - */ - FileIndex.prototype.addPath = function (path, inode) { - if (inode == null) { - throw new Error('Inode must be specified'); - } - if (path[0] !== '/') { - throw new Error('Path must be absolute, got: ' + path); - } - - // Check if it already exists. - if (this._index.hasOwnProperty(path)) { - return this._index[path] === inode; - } - - var splitPath = this._split_path(path); - var dirpath = splitPath[0]; - var itemname = splitPath[1]; - - // Try to add to its parent directory first. - var parent = this._index[dirpath]; - if (parent === undefined && path !== '/') { - // Create parent. - parent = new DirInode(); - if (!this.addPath(dirpath, parent)) { - return false; - } - } - - // Add myself to my parent. - if (path !== '/') { - if (!parent.addItem(itemname, inode)) { - return false; - } - } - - // If I'm a directory, add myself to the index. - if (!inode.isFile()) { - this._index[path] = inode; - } - return true; - }; - - /** - * Removes the given path. Can be a file or a directory. - * @return [BrowserFS.FileInode | BrowserFS.DirInode | null] The removed item, - * or null if it did not exist. - */ - FileIndex.prototype.removePath = function (path) { - var splitPath = this._split_path(path); - var dirpath = splitPath[0]; - var itemname = splitPath[1]; - - // Try to remove it from its parent directory first. - var parent = this._index[dirpath]; - if (parent === undefined) { - return null; - } - - // Remove myself from my parent. - var inode = parent.remItem(itemname); - if (inode === null) { - return null; - } - - // If I'm a directory, remove myself from the index, and remove my children. - if (!inode.isFile()) { - var dirInode = inode; - var children = dirInode.getListing(); - for (var i = 0; i < children.length; i++) { - this.removePath(path + '/' + children[i]); - } - - // Remove the directory from the index, unless it's the root. - if (path !== '/') { - delete this._index[path]; - } - } - return inode; - }; - - /** - * Retrieves the directory listing of the given path. - * @return [String[]] An array of files in the given path, or 'null' if it does - * not exist. - */ - FileIndex.prototype.ls = function (path) { - var item = this._index[path]; - if (item === undefined) { - return null; - } - return item.getListing(); - }; - - /** - * Returns the inode of the given item. - * @param [String] path - * @return [BrowserFS.FileInode | BrowserFS.DirInode | null] Returns null if - * the item does not exist. - */ - FileIndex.prototype.getInode = function (path) { - var splitPath = this._split_path(path); - var dirpath = splitPath[0]; - var itemname = splitPath[1]; - - // Retrieve from its parent directory. - var parent = this._index[dirpath]; - if (parent === undefined) { - return null; - } - - // Root case - if (dirpath === path) { - return parent; - } - return parent.getItem(itemname); - }; - - /** - * Static method for constructing indices from a JSON listing. - * @param [Object] listing Directory listing generated by tools/XHRIndexer.coffee - * @return [BrowserFS.FileIndex] A new FileIndex object. - */ - FileIndex.from_listing = function (listing) { - var idx = new FileIndex(); - - // Add a root DirNode. - var rootInode = new DirInode(); - idx._index['/'] = rootInode; - var queue = [['', listing, rootInode]]; - while (queue.length > 0) { - var inode; - var next = queue.pop(); - var pwd = next[0]; - var tree = next[1]; - var parent = next[2]; - for (var node in tree) { - var children = tree[node]; - var name = "" + pwd + "/" + node; - if (children != null) { - idx._index[name] = inode = new DirInode(); - queue.push([name, children, inode]); - } else { - // This inode doesn't have correct size information, noted with -1. - inode = new FileInode(new Stats(32768 /* FILE */, -1, 0x16D)); - } - if (parent != null) { - parent._ls[node] = inode; - } - } - } - return idx; - }; - return FileIndex; - })(); - exports.FileIndex = FileIndex; - - - - /** - * Inode for a file. Stores an arbitrary (filesystem-specific) data payload. - */ - var FileInode = (function () { - function FileInode(data) { - this.data = data; - } - FileInode.prototype.isFile = function () { - return true; - }; - FileInode.prototype.isDir = function () { - return false; - }; - FileInode.prototype.getData = function () { - return this.data; - }; - FileInode.prototype.setData = function (data) { - this.data = data; - }; - return FileInode; - })(); - exports.FileInode = FileInode; - - /** - * Inode for a directory. Currently only contains the directory listing. - */ - var DirInode = (function () { - /** - * Constructs an inode for a directory. - */ - function DirInode() { - this._ls = {}; - } - DirInode.prototype.isFile = function () { - return false; - }; - DirInode.prototype.isDir = function () { - return true; - }; - - /** - * Return a Stats object for this inode. - * @todo Should probably remove this at some point. This isn't the - * responsibility of the FileIndex. - * @return [BrowserFS.node.fs.Stats] - */ - DirInode.prototype.getStats = function () { - return new Stats(16384 /* DIRECTORY */, 4096, 0x16D); - }; - - /** - * Returns the directory listing for this directory. Paths in the directory are - * relative to the directory's path. - * @return [String[]] The directory listing for this directory. - */ - DirInode.prototype.getListing = function () { - return Object.keys(this._ls); - }; - - /** - * Returns the inode for the indicated item, or null if it does not exist. - * @param [String] p Name of item in this directory. - * @return [BrowserFS.FileInode | BrowserFS.DirInode | null] - */ - DirInode.prototype.getItem = function (p) { - var _ref; - return (_ref = this._ls[p]) != null ? _ref : null; - }; - - /** - * Add the given item to the directory listing. Note that the given inode is - * not copied, and will be mutated by the DirInode if it is a DirInode. - * @param [String] p Item name to add to the directory listing. - * @param [BrowserFS.FileInode | BrowserFS.DirInode] inode The inode for the - * item to add to the directory inode. - * @return [Boolean] True if it was added, false if it already existed. - */ - DirInode.prototype.addItem = function (p, inode) { - if (p in this._ls) { - return false; - } - this._ls[p] = inode; - return true; - }; - - /** - * Removes the given item from the directory listing. - * @param [String] p Name of item to remove from the directory listing. - * @return [BrowserFS.FileInode | BrowserFS.DirInode | null] Returns the item - * removed, or null if the item did not exist. - */ - DirInode.prototype.remItem = function (p) { - var item = this._ls[p]; - if (item === undefined) { - return null; - } - delete this._ls[p]; - return item; - }; - return DirInode; - })(); - exports.DirInode = DirInode; -}); -//# sourceMappingURL=file_index.js.map -; -/** -* Grab bag of utility functions used across the code. -*/ -define('core/util',["require", "exports"], function(require, exports) { - /** - * Estimates the size of a JS object. - * @param {Object} object - the object to measure. - * @return {Number} estimated object size. - * @see http://stackoverflow.com/a/11900218/10601 - */ - function roughSizeOfObject(object) { - var bytes, key, objectList, prop, stack, value; - objectList = []; - stack = [object]; - bytes = 0; - while (stack.length !== 0) { - value = stack.pop(); - if (typeof value === 'boolean') { - bytes += 4; - } else if (typeof value === 'string') { - bytes += value.length * 2; - } else if (typeof value === 'number') { - bytes += 8; - } else if (typeof value === 'object' && objectList.indexOf(value) < 0) { - objectList.push(value); - bytes += 4; - for (key in value) { - prop = value[key]; - bytes += key.length * 2; - stack.push(prop); - } - } - } - return bytes; - } - exports.roughSizeOfObject = roughSizeOfObject; - - /** - * Checks for any IE version, including IE11 which removed MSIE from the - * userAgent string. - */ - exports.isIE = (/(msie) ([\w.]+)/.exec(navigator.userAgent.toLowerCase()) != null || navigator.userAgent.indexOf('Trident') !== -1); -}); -//# sourceMappingURL=util.js.map -; -/** -* Contains utility methods for performing a variety of tasks with -* XmlHttpRequest across browsers. -*/ -define('generic/xhr',["require", "exports", '../core/util', '../core/buffer', '../core/api_error'], function(require, exports, util, buffer, api_error) { - var ApiError = api_error.ApiError; - var ErrorCode = api_error.ErrorCode; - var Buffer = buffer.Buffer; - - - - // Converts 'responseBody' in IE into the equivalent 'responseText' that other - // browsers would generate. - function getIEByteArray(IEByteArray) { - var rawBytes = IEBinaryToArray_ByteStr(IEByteArray); - var lastChr = IEBinaryToArray_ByteStr_Last(IEByteArray); - var data_str = rawBytes.replace(/[\s\S]/g, function (match) { - var v = match.charCodeAt(0); - return String.fromCharCode(v & 0xff, v >> 8); - }) + lastChr; - var data_array = new Array(data_str.length); - for (var i = 0; i < data_str.length; i++) { - data_array[i] = data_str.charCodeAt(i); - } - return data_array; - } - - function downloadFileIE(async, p, type, cb) { - switch (type) { - case 'buffer': - - case 'json': - break; - default: - return cb(new ApiError(9 /* EINVAL */, "Invalid download type: " + type)); - } - - var req = new XMLHttpRequest(); - req.open('GET', p, async); - req.setRequestHeader("Accept-Charset", "x-user-defined"); - req.onreadystatechange = function (e) { - var data_array; - if (req.readyState === 4) { - if (req.status === 200) { - switch (type) { - case 'buffer': - data_array = getIEByteArray(req.responseBody); - return cb(null, new Buffer(data_array)); - case 'json': - return cb(null, JSON.parse(req.responseText)); - } - } else { - return cb(new ApiError(req.status, "XHR error.")); - } - } - }; - req.send(); - } - - function asyncDownloadFileIE(p, type, cb) { - downloadFileIE(true, p, type, cb); - } - - function syncDownloadFileIE(p, type) { - var rv; - downloadFileIE(false, p, type, function (err, data) { - if (err) - throw err; - rv = data; - }); - return rv; - } - - function asyncDownloadFileModern(p, type, cb) { - var req = new XMLHttpRequest(); - req.open('GET', p, true); - var jsonSupported = true; - switch (type) { - case 'buffer': - req.responseType = 'arraybuffer'; - break; - case 'json': - try { - req.responseType = 'json'; - jsonSupported = req.responseType === 'json'; - } catch (e) { - jsonSupported = false; - } - break; - default: - return cb(new ApiError(9 /* EINVAL */, "Invalid download type: " + type)); - } - req.onreadystatechange = function (e) { - if (req.readyState === 4) { - if (req.status === 200) { - switch (type) { - case 'buffer': - // XXX: WebKit-based browsers return *null* when XHRing an empty file. - return cb(null, new Buffer(req.response ? req.response : 0)); - case 'json': - if (jsonSupported) { - return cb(null, req.response); - } else { - return cb(null, JSON.parse(req.responseText)); - } - } - } else { - return cb(new ApiError(req.status, "XHR error.")); - } - } - }; - req.send(); - } - - function syncDownloadFileModern(p, type) { - var req = new XMLHttpRequest(); - req.open('GET', p, false); - - // On most platforms, we cannot set the responseType of synchronous downloads. - // @todo Test for this; IE10 allows this, as do older versions of Chrome/FF. - var data = null; - var err = null; - - // Classic hack to download binary data as a string. - req.overrideMimeType('text/plain; charset=x-user-defined'); - req.onreadystatechange = function (e) { - if (req.readyState === 4) { - if (req.status === 200) { - switch (type) { - case 'buffer': - // Convert the text into a buffer. - var text = req.responseText; - data = new Buffer(text.length); - - for (var i = 0; i < text.length; i++) { - // This will automatically throw away the upper bit of each - // character for us. - data.writeUInt8(text.charCodeAt(i), i); - } - return; - case 'json': - data = JSON.parse(req.responseText); - return; - } - } else { - err = new ApiError(req.status, "XHR error."); - return; - } - } - }; - req.send(); - if (err) { - throw err; - } - return data; - } - - - - function syncDownloadFileIE10(p, type) { - var req = new XMLHttpRequest(); - req.open('GET', p, false); - switch (type) { - case 'buffer': - req.responseType = 'arraybuffer'; - break; - case 'json': - break; - default: - throw new ApiError(9 /* EINVAL */, "Invalid download type: " + type); - } - var data; - var err; - req.onreadystatechange = function (e) { - if (req.readyState === 4) { - if (req.status === 200) { - switch (type) { - case 'buffer': - data = new Buffer(req.response); - break; - case 'json': - data = JSON.parse(req.response); - break; - } - } else { - err = new ApiError(req.status, "XHR error."); - } - } - }; - req.send(); - if (err) { - throw err; - } - return data; - } - - function getFileSize(async, p, cb) { - var req = new XMLHttpRequest(); - req.open('HEAD', p, async); - req.onreadystatechange = function (e) { - if (req.readyState === 4) { - if (req.status == 200) { - try { - return cb(null, parseInt(req.getResponseHeader('Content-Length'), 10)); - } catch (e) { - // In the event that the header isn't present or there is an error... - return cb(new ApiError(2 /* EIO */, "XHR HEAD error: Could not read content-length.")); - } - } else { - return cb(new ApiError(req.status, "XHR HEAD error.")); - } - } - }; - req.send(); - } - - /** - * Asynchronously download a file as a buffer or a JSON object. - * Note that the third function signature with a non-specialized type is - * invalid, but TypeScript requires it when you specialize string arguments to - * constants. - */ - exports.asyncDownloadFile = (util.isIE && typeof Blob === 'undefined') ? asyncDownloadFileIE : asyncDownloadFileModern; - - /** - * Synchronously download a file as a buffer or a JSON object. - * Note that the third function signature with a non-specialized type is - * invalid, but TypeScript requires it when you specialize string arguments to - * constants. - */ - exports.syncDownloadFile = (util.isIE && typeof Blob === 'undefined') ? syncDownloadFileIE : (util.isIE && typeof Blob !== 'undefined') ? syncDownloadFileIE10 : syncDownloadFileModern; - - /** - * Synchronously retrieves the size of the given file in bytes. - */ - function getFileSizeSync(p) { - var rv; - getFileSize(false, p, function (err, size) { - if (err) { - throw err; - } - rv = size; - }); - return rv; - } - exports.getFileSizeSync = getFileSizeSync; - - /** - * Asynchronously retrieves the size of the given file in bytes. - */ - function getFileSizeAsync(p, cb) { - getFileSize(true, p, cb); - } - exports.getFileSizeAsync = getFileSizeAsync; -}); -//# sourceMappingURL=xhr.js.map -; -var __extends = this.__extends || function (d, b) { - for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; - function __() { this.constructor = d; } - __.prototype = b.prototype; - d.prototype = new __(); -}; -define('backend/XmlHttpRequest',["require", "exports", '../core/file_system', '../generic/file_index', '../core/buffer', '../core/api_error', '../core/file_flag', '../generic/preload_file', '../core/browserfs', '../generic/xhr'], function(require, exports, file_system, file_index, buffer, api_error, file_flag, preload_file, browserfs, xhr) { - var Buffer = buffer.Buffer; - var ApiError = api_error.ApiError; - var ErrorCode = api_error.ErrorCode; - var FileFlag = file_flag.FileFlag; - var ActionType = file_flag.ActionType; - - /** - * A simple filesystem backed by XmlHttpRequests. - */ - var XmlHttpRequest = (function (_super) { - __extends(XmlHttpRequest, _super); - /** - * Constructs the file system. - * @param [String] listing_url The path to the JSON file index generated by - * tools/XHRIndexer.coffee. This can be relative to the current webpage URL - * or absolutely specified. - * @param [String] prefix_url The url prefix to use for all web-server requests. - */ - function XmlHttpRequest(listing_url, prefix_url) { - if (typeof prefix_url === "undefined") { prefix_url = ''; } - _super.call(this); - this.prefix_url = prefix_url; - if (listing_url == null) { - listing_url = 'index.json'; - } - - // prefix_url must end in a directory separator. - if (prefix_url.length > 0 && prefix_url.charAt(prefix_url.length - 1) !== '/') { - prefix_url = prefix_url + '/'; - } - var listing = this._requestFileSync(listing_url, 'json'); - if (listing == null) { - throw new Error("Unable to find listing at URL: " + listing_url); - } - this._index = file_index.FileIndex.from_listing(listing); - } - XmlHttpRequest.prototype.empty = function () { - this._index.fileIterator(function (file) { - file.file_data = null; - }); - }; - - XmlHttpRequest.prototype.getXhrPath = function (filePath) { - if (filePath.charAt(0) === '/') { - filePath = filePath.slice(1); - } - return this.prefix_url + filePath; - }; - - /** - * Only requests the HEAD content, for the file size. - */ - XmlHttpRequest.prototype._requestFileSizeAsync = function (path, cb) { - xhr.getFileSizeAsync(this.getXhrPath(path), cb); - }; - XmlHttpRequest.prototype._requestFileSizeSync = function (path) { - return xhr.getFileSizeSync(this.getXhrPath(path)); - }; - - XmlHttpRequest.prototype._requestFileAsync = function (p, type, cb) { - xhr.asyncDownloadFile(this.getXhrPath(p), type, cb); - }; - - XmlHttpRequest.prototype._requestFileSync = function (p, type) { - return xhr.syncDownloadFile(this.getXhrPath(p), type); - }; - - XmlHttpRequest.prototype.getName = function () { - return 'XmlHttpRequest'; - }; - - XmlHttpRequest.isAvailable = function () { - // @todo Older browsers use a different name for XHR, iirc. - return typeof XMLHttpRequest !== "undefined" && XMLHttpRequest !== null; - }; - - XmlHttpRequest.prototype.diskSpace = function (path, cb) { - // Read-only file system. We could calculate the total space, but that's not - // important right now. - cb(0, 0); - }; - - XmlHttpRequest.prototype.isReadOnly = function () { - return true; - }; - - XmlHttpRequest.prototype.supportsLinks = function () { - return false; - }; - - XmlHttpRequest.prototype.supportsProps = function () { - return false; - }; - - XmlHttpRequest.prototype.supportsSynch = function () { - return true; - }; - - /** - * Special XHR function: Preload the given file into the index. - * @param [String] path - * @param [BrowserFS.Buffer] buffer - */ - XmlHttpRequest.prototype.preloadFile = function (path, buffer) { - var inode = this._index.getInode(path); - if (inode === null) { - throw ApiError.ENOENT(path); - } - var stats = inode.getData(); - stats.size = buffer.length; - stats.file_data = buffer; - }; - - XmlHttpRequest.prototype.stat = function (path, isLstat, cb) { - var inode = this._index.getInode(path); - if (inode === null) { - return cb(ApiError.ENOENT(path)); - } - var stats; - if (inode.isFile()) { - stats = inode.getData(); - - // At this point, a non-opened file will still have default stats from the listing. - if (stats.size < 0) { - this._requestFileSizeAsync(path, function (e, size) { - if (e) { - return cb(e); - } - stats.size = size; - cb(null, stats.clone()); - }); - } else { - cb(null, stats.clone()); - } - } else { - stats = inode.getStats(); - cb(null, stats); - } - }; - - XmlHttpRequest.prototype.statSync = function (path, isLstat) { - var inode = this._index.getInode(path); - if (inode === null) { - throw ApiError.ENOENT(path); - } - var stats; - if (inode.isFile()) { - stats = inode.getData(); - - // At this point, a non-opened file will still have default stats from the listing. - if (stats.size < 0) { - stats.size = this._requestFileSizeSync(path); - } - } else { - stats = inode.getStats(); - } - return stats; - }; - - XmlHttpRequest.prototype.open = function (path, flags, mode, cb) { - // INVARIANT: You can't write to files on this file system. - if (flags.isWriteable()) { - return cb(new ApiError(0 /* EPERM */, path)); - } - var _this = this; - - // Check if the path exists, and is a file. - var inode = this._index.getInode(path); - if (inode === null) { - return cb(ApiError.ENOENT(path)); - } - if (inode.isDir()) { - return cb(ApiError.EISDIR(path)); - } - var stats = inode.getData(); - switch (flags.pathExistsAction()) { - case 1 /* THROW_EXCEPTION */: - case 2 /* TRUNCATE_FILE */: - return cb(ApiError.EEXIST(path)); - case 0 /* NOP */: - // Use existing file contents. - // XXX: Uh, this maintains the previously-used flag. - if (stats.file_data != null) { - return cb(null, new preload_file.NoSyncFile(_this, path, flags, stats.clone(), stats.file_data)); - } - - // @todo be lazier about actually requesting the file - this._requestFileAsync(path, 'buffer', function (err, buffer) { - if (err) { - return cb(err); - } - - // we don't initially have file sizes - stats.size = buffer.length; - stats.file_data = buffer; - return cb(null, new preload_file.NoSyncFile(_this, path, flags, stats.clone(), buffer)); - }); - break; - default: - return cb(new ApiError(9 /* EINVAL */, 'Invalid FileMode object.')); - } - }; - - XmlHttpRequest.prototype.openSync = function (path, flags, mode) { - // INVARIANT: You can't write to files on this file system. - if (flags.isWriteable()) { - throw new ApiError(0 /* EPERM */, path); - } - - // Check if the path exists, and is a file. - var inode = this._index.getInode(path); - if (inode === null) { - throw ApiError.ENOENT(path); - } - if (inode.isDir()) { - throw ApiError.EISDIR(path); - } - var stats = inode.getData(); - switch (flags.pathExistsAction()) { - case 1 /* THROW_EXCEPTION */: - case 2 /* TRUNCATE_FILE */: - throw ApiError.EEXIST(path); - case 0 /* NOP */: - // Use existing file contents. - // XXX: Uh, this maintains the previously-used flag. - if (stats.file_data != null) { - return new preload_file.NoSyncFile(this, path, flags, stats.clone(), stats.file_data); - } - - // @todo be lazier about actually requesting the file - var buffer = this._requestFileSync(path, 'buffer'); - - // we don't initially have file sizes - stats.size = buffer.length; - stats.file_data = buffer; - return new preload_file.NoSyncFile(this, path, flags, stats.clone(), buffer); - default: - throw new ApiError(9 /* EINVAL */, 'Invalid FileMode object.'); - } - }; - - XmlHttpRequest.prototype.readdir = function (path, cb) { - try { - cb(null, this.readdirSync(path)); - } catch (e) { - cb(e); - } - }; - - XmlHttpRequest.prototype.readdirSync = function (path) { - // Check if it exists. - var inode = this._index.getInode(path); - if (inode === null) { - throw ApiError.ENOENT(path); - } else if (inode.isFile()) { - throw ApiError.ENOTDIR(path); - } - return inode.getListing(); - }; - - /** - * We have the entire file as a buffer; optimize readFile. - */ - XmlHttpRequest.prototype.readFile = function (fname, encoding, flag, cb) { - // Wrap cb in file closing code. - var oldCb = cb; - - // Get file. - this.open(fname, flag, 0x1a4, function (err, fd) { - if (err) { - return cb(err); - } - cb = function (err, arg) { - fd.close(function (err2) { - if (err == null) { - err = err2; - } - return oldCb(err, arg); - }); - }; - var fdCast = fd; - var fdBuff = fdCast._buffer; - if (encoding === null) { - if (fdBuff.length > 0) { - return cb(err, fdBuff.sliceCopy()); - } else { - return cb(err, new buffer.Buffer(0)); - } - } - try { - cb(null, fdBuff.toString(encoding)); - } catch (e) { - cb(e); - } - }); - }; - - /** - * Specially-optimized readfile. - */ - XmlHttpRequest.prototype.readFileSync = function (fname, encoding, flag) { - // Get file. - var fd = this.openSync(fname, flag, 0x1a4); - try { - var fdCast = fd; - var fdBuff = fdCast._buffer; - if (encoding === null) { - if (fdBuff.length > 0) { - return fdBuff.sliceCopy(); - } else { - return new buffer.Buffer(0); - } - } - return fdBuff.toString(encoding); - } finally { - fd.closeSync(); - } - }; - return XmlHttpRequest; - })(file_system.BaseFileSystem); - exports.XmlHttpRequest = XmlHttpRequest; - - browserfs.registerFileSystem('XmlHttpRequest', XmlHttpRequest); -}); -//# sourceMappingURL=XmlHttpRequest.js.map -; -/*global setImmediate: false, setTimeout: false, console: false */ (function () { var async = {}; + function noop() {} + function identity(v) { + return v; + } + function toBool(v) { + return !!v; + } + function notId(v) { + return !v; + } // global on the server, window in the browser - var root, previous_async; + var previous_async; + + // Establish the root object, `window` (`self`) in the browser, `global` + // on the server, or `this` in some virtual machines. We use `self` + // instead of `window` for `WebWorker` support. + var root = typeof self === 'object' && self.self === self && self || + typeof global === 'object' && global.global === global && global || + this; - root = this; if (root != null) { - previous_async = root.async; + previous_async = root.async; } async.noConflict = function () { @@ -8906,50 +41,89 @@ define('backend/XmlHttpRequest',["require", "exports", '../core/file_system', '. }; function only_once(fn) { - var called = false; return function() { - if (called) throw new Error("Callback was already called."); - called = true; - fn.apply(root, arguments); - } + if (fn === null) throw new Error("Callback was already called."); + fn.apply(this, arguments); + fn = null; + }; + } + + function _once(fn) { + return function() { + if (fn === null) return; + fn.apply(this, arguments); + fn = null; + }; } //// cross-browser compatiblity functions //// - var _each = function (arr, iterator) { - if (arr.forEach) { - return arr.forEach(iterator); - } - for (var i = 0; i < arr.length; i += 1) { - iterator(arr[i], i, arr); - } + var _toString = Object.prototype.toString; + + var _isArray = Array.isArray || function (obj) { + return _toString.call(obj) === '[object Array]'; }; - var _map = function (arr, iterator) { - if (arr.map) { - return arr.map(iterator); - } - var results = []; - _each(arr, function (x, i, a) { - results.push(iterator(x, i, a)); - }); - return results; + // Ported from underscore.js isObject + var _isObject = function(obj) { + var type = typeof obj; + return type === 'function' || type === 'object' && !!obj; }; - var _reduce = function (arr, iterator, memo) { - if (arr.reduce) { - return arr.reduce(iterator, memo); + function _isArrayLike(arr) { + return _isArray(arr) || ( + // has a positive integer length property + typeof arr.length === "number" && + arr.length >= 0 && + arr.length % 1 === 0 + ); + } + + function _arrayEach(arr, iterator) { + var index = -1, + length = arr.length; + + while (++index < length) { + iterator(arr[index], index, arr); } - _each(arr, function (x, i, a) { + } + + function _map(arr, iterator) { + var index = -1, + length = arr.length, + result = Array(length); + + while (++index < length) { + result[index] = iterator(arr[index], index, arr); + } + return result; + } + + function _range(count) { + return _map(Array(count), function (v, i) { return i; }); + } + + function _reduce(arr, iterator, memo) { + _arrayEach(arr, function (x, i, a) { memo = iterator(memo, x, i, a); }); return memo; - }; + } - var _keys = function (obj) { - if (Object.keys) { - return Object.keys(obj); + function _forEachOf(object, iterator) { + _arrayEach(_keys(object), function (key) { + iterator(object[key], key); + }); + } + + function _indexOf(arr, item) { + for (var i = 0; i < arr.length; i++) { + if (arr[i] === item) return i; } + return -1; + } + + var _keys = Object.keys || function (obj) { var keys = []; for (var k in obj) { if (obj.hasOwnProperty(k)) { @@ -8959,182 +133,247 @@ define('backend/XmlHttpRequest',["require", "exports", '../core/file_system', '. return keys; }; + function _keyIterator(coll) { + var i = -1; + var len; + var keys; + if (_isArrayLike(coll)) { + len = coll.length; + return function next() { + i++; + return i < len ? i : null; + }; + } else { + keys = _keys(coll); + len = keys.length; + return function next() { + i++; + return i < len ? keys[i] : null; + }; + } + } + + // Similar to ES6's rest param (http://ariya.ofilabs.com/2013/03/es6-and-rest-parameter.html) + // This accumulates the arguments passed into an array, after a given index. + // From underscore.js (https://github.com/jashkenas/underscore/pull/2140). + function _restParam(func, startIndex) { + startIndex = startIndex == null ? func.length - 1 : +startIndex; + return function() { + var length = Math.max(arguments.length - startIndex, 0); + var rest = Array(length); + for (var index = 0; index < length; index++) { + rest[index] = arguments[index + startIndex]; + } + switch (startIndex) { + case 0: return func.call(this, rest); + case 1: return func.call(this, arguments[0], rest); + } + // Currently unused but handle cases outside of the switch statement: + // var args = Array(startIndex + 1); + // for (index = 0; index < startIndex; index++) { + // args[index] = arguments[index]; + // } + // args[startIndex] = rest; + // return func.apply(this, args); + }; + } + + function _withoutIndex(iterator) { + return function (value, index, callback) { + return iterator(value, callback); + }; + } + //// exported async module functions //// //// nextTick implementation with browser-compatible fallback //// - if (typeof process === 'undefined' || !(process.nextTick)) { - if (typeof setImmediate === 'function') { - async.nextTick = function (fn) { - // not a direct alias for IE10 compatibility - setImmediate(fn); - }; - async.setImmediate = async.nextTick; - } - else { - async.nextTick = function (fn) { - setTimeout(fn, 0); - }; - async.setImmediate = async.nextTick; - } - } - else { - async.nextTick = process.nextTick; - if (typeof setImmediate !== 'undefined') { - async.setImmediate = function (fn) { - // not a direct alias for IE10 compatibility - setImmediate(fn); - }; - } - else { - async.setImmediate = async.nextTick; - } - } + // capture the global reference to guard against fakeTimer mocks + var _setImmediate = typeof setImmediate === 'function' && setImmediate; + + var _delay = _setImmediate ? function(fn) { + // not a direct alias for IE10 compatibility + _setImmediate(fn); + } : function(fn) { + setTimeout(fn, 0); + }; + + if (typeof process === 'object' && typeof process.nextTick === 'function') { + async.nextTick = process.nextTick; + } else { + async.nextTick = _delay; + } + async.setImmediate = _setImmediate ? _delay : async.nextTick; + + + async.forEach = async.each = function (arr, iterator, callback) { - callback = callback || function () {}; - if (!arr.length) { - return callback(); + return async.eachOf(arr, _withoutIndex(iterator), callback); + }; + + async.forEachSeries = + async.eachSeries = function (arr, iterator, callback) { + return async.eachOfSeries(arr, _withoutIndex(iterator), callback); + }; + + + async.forEachLimit = + async.eachLimit = function (arr, limit, iterator, callback) { + return _eachOfLimit(limit)(arr, _withoutIndex(iterator), callback); + }; + + async.forEachOf = + async.eachOf = function (object, iterator, callback) { + callback = _once(callback || noop); + object = object || []; + + var iter = _keyIterator(object); + var key, completed = 0; + + while ((key = iter()) != null) { + completed += 1; + iterator(object[key], key, only_once(done)); } - var completed = 0; - _each(arr, function (x) { - iterator(x, only_once(function (err) { + + if (completed === 0) callback(null); + + function done(err) { + completed--; + if (err) { + callback(err); + } + // Check key is null in case iterator isn't exhausted + // and done resolved synchronously. + else if (key === null && completed <= 0) { + callback(null); + } + } + }; + + async.forEachOfSeries = + async.eachOfSeries = function (obj, iterator, callback) { + callback = _once(callback || noop); + obj = obj || []; + var nextKey = _keyIterator(obj); + var key = nextKey(); + function iterate() { + var sync = true; + if (key === null) { + return callback(null); + } + iterator(obj[key], key, only_once(function (err) { if (err) { callback(err); - callback = function () {}; } else { - completed += 1; - if (completed >= arr.length) { - callback(null); + key = nextKey(); + if (key === null) { + return callback(null); + } else { + if (sync) { + async.setImmediate(iterate); + } else { + iterate(); + } } } })); - }); - }; - async.forEach = async.each; - - async.eachSeries = function (arr, iterator, callback) { - callback = callback || function () {}; - if (!arr.length) { - return callback(); + sync = false; } - var completed = 0; - var iterate = function () { - iterator(arr[completed], function (err) { - if (err) { - callback(err); - callback = function () {}; - } - else { - completed += 1; - if (completed >= arr.length) { - callback(null); - } - else { - iterate(); - } - } - }); - }; iterate(); }; - async.forEachSeries = async.eachSeries; - async.eachLimit = function (arr, limit, iterator, callback) { - var fn = _eachLimit(limit); - fn.apply(null, [arr, iterator, callback]); + + + async.forEachOfLimit = + async.eachOfLimit = function (obj, limit, iterator, callback) { + _eachOfLimit(limit)(obj, iterator, callback); }; - async.forEachLimit = async.eachLimit; - var _eachLimit = function (limit) { + function _eachOfLimit(limit) { - return function (arr, iterator, callback) { - callback = callback || function () {}; - if (!arr.length || limit <= 0) { - return callback(); + return function (obj, iterator, callback) { + callback = _once(callback || noop); + obj = obj || []; + var nextKey = _keyIterator(obj); + if (limit <= 0) { + return callback(null); } - var completed = 0; - var started = 0; + var done = false; var running = 0; + var errored = false; (function replenish () { - if (completed >= arr.length) { - return callback(); + if (done && running <= 0) { + return callback(null); } - while (running < limit && started < arr.length) { - started += 1; + while (running < limit && !errored) { + var key = nextKey(); + if (key === null) { + done = true; + if (running <= 0) { + callback(null); + } + return; + } running += 1; - iterator(arr[started - 1], function (err) { + iterator(obj[key], key, only_once(function (err) { + running -= 1; if (err) { callback(err); - callback = function () {}; + errored = true; } else { - completed += 1; - running -= 1; - if (completed >= arr.length) { - callback(); - } - else { - replenish(); - } + replenish(); } - }); + })); } })(); }; - }; + } - var doParallel = function (fn) { - return function () { - var args = Array.prototype.slice.call(arguments); - return fn.apply(null, [async.each].concat(args)); + function doParallel(fn) { + return function (obj, iterator, callback) { + return fn(async.eachOf, obj, iterator, callback); }; - }; - var doParallelLimit = function(limit, fn) { - return function () { - var args = Array.prototype.slice.call(arguments); - return fn.apply(null, [_eachLimit(limit)].concat(args)); + } + function doParallelLimit(fn) { + return function (obj, limit, iterator, callback) { + return fn(_eachOfLimit(limit), obj, iterator, callback); }; - }; - var doSeries = function (fn) { - return function () { - var args = Array.prototype.slice.call(arguments); - return fn.apply(null, [async.eachSeries].concat(args)); + } + function doSeries(fn) { + return function (obj, iterator, callback) { + return fn(async.eachOfSeries, obj, iterator, callback); }; - }; + } - - var _asyncMap = function (eachfn, arr, iterator, callback) { - var results = []; - arr = _map(arr, function (x, i) { - return {index: i, value: x}; - }); - eachfn(arr, function (x, callback) { - iterator(x.value, function (err, v) { - results[x.index] = v; + function _asyncMap(eachfn, arr, iterator, callback) { + callback = _once(callback || noop); + arr = arr || []; + var results = _isArrayLike(arr) ? [] : {}; + eachfn(arr, function (value, index, callback) { + iterator(value, function (err, v) { + results[index] = v; callback(err); }); }, function (err) { callback(err, results); }); - }; + } + async.map = doParallel(_asyncMap); async.mapSeries = doSeries(_asyncMap); - async.mapLimit = function (arr, limit, iterator, callback) { - return _mapLimit(limit)(arr, iterator, callback); - }; - - var _mapLimit = function(limit) { - return doParallelLimit(limit, _asyncMap); - }; + async.mapLimit = doParallelLimit(_asyncMap); // reduce only has a series version, as doing reduce in parallel won't // work in many situations. + async.inject = + async.foldl = async.reduce = function (arr, memo, iterator, callback) { - async.eachSeries(arr, function (x, callback) { + async.eachOfSeries(arr, function (x, i, callback) { iterator(memo, x, function (err, v) { memo = v; callback(err); @@ -9143,118 +382,106 @@ define('backend/XmlHttpRequest',["require", "exports", '../core/file_system', '. callback(err, memo); }); }; - // inject alias - async.inject = async.reduce; - // foldl alias - async.foldl = async.reduce; + async.foldr = async.reduceRight = function (arr, memo, iterator, callback) { - var reversed = _map(arr, function (x) { - return x; - }).reverse(); + var reversed = _map(arr, identity).reverse(); async.reduce(reversed, memo, iterator, callback); }; - // foldr alias - async.foldr = async.reduceRight; - var _filter = function (eachfn, arr, iterator, callback) { - var results = []; - arr = _map(arr, function (x, i) { - return {index: i, value: x}; + async.transform = function (arr, memo, iterator, callback) { + if (arguments.length === 3) { + callback = iterator; + iterator = memo; + memo = _isArray(arr) ? [] : {}; + } + + async.eachOf(arr, function(v, k, cb) { + iterator(memo, v, k, cb); + }, function(err) { + callback(err, memo); }); - eachfn(arr, function (x, callback) { - iterator(x.value, function (v) { + }; + + function _filter(eachfn, arr, iterator, callback) { + var results = []; + eachfn(arr, function (x, index, callback) { + iterator(x, function (v) { if (v) { - results.push(x); + results.push({index: index, value: x}); } callback(); }); - }, function (err) { + }, function () { callback(_map(results.sort(function (a, b) { return a.index - b.index; }), function (x) { return x.value; })); }); - }; - async.filter = doParallel(_filter); - async.filterSeries = doSeries(_filter); - // select alias - async.select = async.filter; - async.selectSeries = async.filterSeries; + } - var _reject = function (eachfn, arr, iterator, callback) { - var results = []; - arr = _map(arr, function (x, i) { - return {index: i, value: x}; - }); - eachfn(arr, function (x, callback) { - iterator(x.value, function (v) { - if (!v) { - results.push(x); - } - callback(); + async.select = + async.filter = doParallel(_filter); + + async.selectLimit = + async.filterLimit = doParallelLimit(_filter); + + async.selectSeries = + async.filterSeries = doSeries(_filter); + + function _reject(eachfn, arr, iterator, callback) { + _filter(eachfn, arr, function(value, cb) { + iterator(value, function(v) { + cb(!v); }); - }, function (err) { - callback(_map(results.sort(function (a, b) { - return a.index - b.index; - }), function (x) { - return x.value; - })); - }); - }; + }, callback); + } async.reject = doParallel(_reject); + async.rejectLimit = doParallelLimit(_reject); async.rejectSeries = doSeries(_reject); - var _detect = function (eachfn, arr, iterator, main_callback) { - eachfn(arr, function (x, callback) { - iterator(x, function (result) { - if (result) { - main_callback(x); - main_callback = function () {}; - } - else { + function _createTester(eachfn, check, getResult) { + return function(arr, limit, iterator, cb) { + function done() { + if (cb) cb(getResult(false, void 0)); + } + function iteratee(x, _, callback) { + if (!cb) return callback(); + iterator(x, function (v) { + if (cb && check(v)) { + cb(getResult(true, x)); + cb = iterator = false; + } callback(); - } - }); - }, function (err) { - main_callback(); - }); - }; - async.detect = doParallel(_detect); - async.detectSeries = doSeries(_detect); + }); + } + if (arguments.length > 3) { + eachfn(arr, limit, iteratee, done); + } else { + cb = iterator; + iterator = limit; + eachfn(arr, iteratee, done); + } + }; + } - async.some = function (arr, iterator, main_callback) { - async.each(arr, function (x, callback) { - iterator(x, function (v) { - if (v) { - main_callback(true); - main_callback = function () {}; - } - callback(); - }); - }, function (err) { - main_callback(false); - }); - }; - // any alias - async.any = async.some; + async.any = + async.some = _createTester(async.eachOf, toBool, identity); - async.every = function (arr, iterator, main_callback) { - async.each(arr, function (x, callback) { - iterator(x, function (v) { - if (!v) { - main_callback(false); - main_callback = function () {}; - } - callback(); - }); - }, function (err) { - main_callback(true); - }); - }; - // all alias - async.all = async.every; + async.someLimit = _createTester(async.eachOfLimit, toBool, identity); + + async.all = + async.every = _createTester(async.eachOf, notId, notId); + + async.everyLimit = _createTester(async.eachOfLimit, notId, notId); + + function _findGetResult(v, x) { + return x; + } + async.detect = _createTester(async.eachOf, identity, _findGetResult); + async.detectSeries = _createTester(async.eachOfSeries, identity, _findGetResult); + async.detectLimit = _createTester(async.eachOfLimit, identity, _findGetResult); async.sortBy = function (arr, iterator, callback) { async.map(arr, function (x, callback) { @@ -9271,111 +498,206 @@ define('backend/XmlHttpRequest',["require", "exports", '../core/file_system', '. return callback(err); } else { - var fn = function (left, right) { - var a = left.criteria, b = right.criteria; - return a < b ? -1 : a > b ? 1 : 0; - }; - callback(null, _map(results.sort(fn), function (x) { + callback(null, _map(results.sort(comparator), function (x) { return x.value; })); } + }); + + function comparator(left, right) { + var a = left.criteria, b = right.criteria; + return a < b ? -1 : a > b ? 1 : 0; + } }; - async.auto = function (tasks, callback) { - callback = callback || function () {}; + async.auto = function (tasks, concurrency, callback) { + if (typeof arguments[1] === 'function') { + // concurrency is optional, shift the args. + callback = concurrency; + concurrency = null; + } + callback = _once(callback || noop); var keys = _keys(tasks); - if (!keys.length) { + var remainingTasks = keys.length; + if (!remainingTasks) { return callback(null); } + if (!concurrency) { + concurrency = remainingTasks; + } var results = {}; + var runningTasks = 0; + + var hasError = false; var listeners = []; - var addListener = function (fn) { + function addListener(fn) { listeners.unshift(fn); - }; - var removeListener = function (fn) { - for (var i = 0; i < listeners.length; i += 1) { - if (listeners[i] === fn) { - listeners.splice(i, 1); - return; - } - } - }; - var taskComplete = function () { - _each(listeners.slice(0), function (fn) { + } + function removeListener(fn) { + var idx = _indexOf(listeners, fn); + if (idx >= 0) listeners.splice(idx, 1); + } + function taskComplete() { + remainingTasks--; + _arrayEach(listeners.slice(0), function (fn) { fn(); }); - }; + } addListener(function () { - if (_keys(results).length === keys.length) { + if (!remainingTasks) { callback(null, results); - callback = function () {}; } }); - _each(keys, function (k) { - var task = (tasks[k] instanceof Function) ? [tasks[k]]: tasks[k]; - var taskCallback = function (err) { - var args = Array.prototype.slice.call(arguments, 1); + _arrayEach(keys, function (k) { + if (hasError) return; + var task = _isArray(tasks[k]) ? tasks[k]: [tasks[k]]; + var taskCallback = _restParam(function(err, args) { + runningTasks--; if (args.length <= 1) { args = args[0]; } if (err) { var safeResults = {}; - _each(_keys(results), function(rkey) { - safeResults[rkey] = results[rkey]; + _forEachOf(results, function(val, rkey) { + safeResults[rkey] = val; }); safeResults[k] = args; + hasError = true; + callback(err, safeResults); - // stop subsequent errors hitting callback multiple times - callback = function () {}; } else { results[k] = args; async.setImmediate(taskComplete); } - }; - var requires = task.slice(0, Math.abs(task.length - 1)) || []; - var ready = function () { - return _reduce(requires, function (a, x) { + }); + var requires = task.slice(0, task.length - 1); + // prevent dead-locks + var len = requires.length; + var dep; + while (len--) { + if (!(dep = tasks[requires[len]])) { + throw new Error('Has nonexistent dependency in ' + requires.join(', ')); + } + if (_isArray(dep) && _indexOf(dep, k) >= 0) { + throw new Error('Has cyclic dependencies'); + } + } + function ready() { + return runningTasks < concurrency && _reduce(requires, function (a, x) { return (a && results.hasOwnProperty(x)); }, true) && !results.hasOwnProperty(k); - }; + } if (ready()) { + runningTasks++; task[task.length - 1](taskCallback, results); } else { - var listener = function () { - if (ready()) { - removeListener(listener); - task[task.length - 1](taskCallback, results); - } - }; addListener(listener); } + function listener() { + if (ready()) { + runningTasks++; + removeListener(listener); + task[task.length - 1](taskCallback, results); + } + } }); }; + + + async.retry = function(times, task, callback) { + var DEFAULT_TIMES = 5; + var DEFAULT_INTERVAL = 0; + + var attempts = []; + + var opts = { + times: DEFAULT_TIMES, + interval: DEFAULT_INTERVAL + }; + + function parseTimes(acc, t){ + if(typeof t === 'number'){ + acc.times = parseInt(t, 10) || DEFAULT_TIMES; + } else if(typeof t === 'object'){ + acc.times = parseInt(t.times, 10) || DEFAULT_TIMES; + acc.interval = parseInt(t.interval, 10) || DEFAULT_INTERVAL; + } else { + throw new Error('Unsupported argument type for \'times\': ' + typeof t); + } + } + + var length = arguments.length; + if (length < 1 || length > 3) { + throw new Error('Invalid arguments - must be either (task), (task, callback), (times, task) or (times, task, callback)'); + } else if (length <= 2 && typeof times === 'function') { + callback = task; + task = times; + } + if (typeof times !== 'function') { + parseTimes(opts, times); + } + opts.callback = callback; + opts.task = task; + + function wrappedTask(wrappedCallback, wrappedResults) { + function retryAttempt(task, finalAttempt) { + return function(seriesCallback) { + task(function(err, result){ + seriesCallback(!err || finalAttempt, {err: err, result: result}); + }, wrappedResults); + }; + } + + function retryInterval(interval){ + return function(seriesCallback){ + setTimeout(function(){ + seriesCallback(null); + }, interval); + }; + } + + while (opts.times) { + + var finalAttempt = !(opts.times-=1); + attempts.push(retryAttempt(opts.task, finalAttempt)); + if(!finalAttempt && opts.interval > 0){ + attempts.push(retryInterval(opts.interval)); + } + } + + async.series(attempts, function(done, data){ + data = data[data.length - 1]; + (wrappedCallback || opts.callback)(data.err, data.result); + }); + } + + // If a callback is passed, run this as a controll flow + return opts.callback ? wrappedTask() : wrappedTask; + }; + async.waterfall = function (tasks, callback) { - callback = callback || function () {}; - if (tasks.constructor !== Array) { - var err = new Error('First argument to waterfall must be an array of functions'); - return callback(err); + callback = _once(callback || noop); + if (!_isArray(tasks)) { + var err = new Error('First argument to waterfall must be an array of functions'); + return callback(err); } if (!tasks.length) { return callback(); } - var wrapIterator = function (iterator) { - return function (err) { + function wrapIterator(iterator) { + return _restParam(function (err, args) { if (err) { - callback.apply(null, arguments); - callback = function () {}; + callback.apply(null, [err].concat(args)); } else { - var args = Array.prototype.slice.call(arguments, 1); var next = iterator.next(); if (next) { args.push(wrapIterator(next)); @@ -9383,241 +705,254 @@ define('backend/XmlHttpRequest',["require", "exports", '../core/file_system', '. else { args.push(callback); } - async.setImmediate(function () { - iterator.apply(null, args); - }); + ensureAsync(iterator).apply(null, args); } - }; - }; + }); + } wrapIterator(async.iterator(tasks))(); }; - var _parallel = function(eachfn, tasks, callback) { - callback = callback || function () {}; - if (tasks.constructor === Array) { - eachfn.map(tasks, function (fn, callback) { - if (fn) { - fn(function (err) { - var args = Array.prototype.slice.call(arguments, 1); - if (args.length <= 1) { - args = args[0]; - } - callback.call(null, err, args); - }); + function _parallel(eachfn, tasks, callback) { + callback = callback || noop; + var results = _isArrayLike(tasks) ? [] : {}; + + eachfn(tasks, function (task, key, callback) { + task(_restParam(function (err, args) { + if (args.length <= 1) { + args = args[0]; } - }, callback); - } - else { - var results = {}; - eachfn.each(_keys(tasks), function (k, callback) { - tasks[k](function (err) { - var args = Array.prototype.slice.call(arguments, 1); - if (args.length <= 1) { - args = args[0]; - } - results[k] = args; - callback(err); - }); - }, function (err) { - callback(err, results); - }); - } - }; + results[key] = args; + callback(err); + })); + }, function (err) { + callback(err, results); + }); + } async.parallel = function (tasks, callback) { - _parallel({ map: async.map, each: async.each }, tasks, callback); + _parallel(async.eachOf, tasks, callback); }; async.parallelLimit = function(tasks, limit, callback) { - _parallel({ map: _mapLimit(limit), each: _eachLimit(limit) }, tasks, callback); + _parallel(_eachOfLimit(limit), tasks, callback); }; - async.series = function (tasks, callback) { - callback = callback || function () {}; - if (tasks.constructor === Array) { - async.mapSeries(tasks, function (fn, callback) { - if (fn) { - fn(function (err) { - var args = Array.prototype.slice.call(arguments, 1); - if (args.length <= 1) { - args = args[0]; - } - callback.call(null, err, args); - }); - } - }, callback); - } - else { - var results = {}; - async.eachSeries(_keys(tasks), function (k, callback) { - tasks[k](function (err) { - var args = Array.prototype.slice.call(arguments, 1); - if (args.length <= 1) { - args = args[0]; - } - results[k] = args; - callback(err); - }); - }, function (err) { - callback(err, results); - }); - } + async.series = function(tasks, callback) { + _parallel(async.eachOfSeries, tasks, callback); }; async.iterator = function (tasks) { - var makeCallback = function (index) { - var fn = function () { + function makeCallback(index) { + function fn() { if (tasks.length) { tasks[index].apply(null, arguments); } return fn.next(); - }; + } fn.next = function () { return (index < tasks.length - 1) ? makeCallback(index + 1): null; }; return fn; - }; + } return makeCallback(0); }; - async.apply = function (fn) { - var args = Array.prototype.slice.call(arguments, 1); - return function () { + async.apply = _restParam(function (fn, args) { + return _restParam(function (callArgs) { return fn.apply( - null, args.concat(Array.prototype.slice.call(arguments)) + null, args.concat(callArgs) ); - }; - }; + }); + }); - var _concat = function (eachfn, arr, fn, callback) { - var r = []; - eachfn(arr, function (x, cb) { + function _concat(eachfn, arr, fn, callback) { + var result = []; + eachfn(arr, function (x, index, cb) { fn(x, function (err, y) { - r = r.concat(y || []); + result = result.concat(y || []); cb(err); }); }, function (err) { - callback(err, r); + callback(err, result); }); - }; + } async.concat = doParallel(_concat); async.concatSeries = doSeries(_concat); async.whilst = function (test, iterator, callback) { + callback = callback || noop; if (test()) { - iterator(function (err) { + var next = _restParam(function(err, args) { if (err) { - return callback(err); + callback(err); + } else if (test.apply(this, args)) { + iterator(next); + } else { + callback.apply(null, [null].concat(args)); } - async.whilst(test, iterator, callback); }); - } - else { - callback(); + iterator(next); + } else { + callback(null); } }; async.doWhilst = function (iterator, test, callback) { - iterator(function (err) { - if (err) { - return callback(err); - } - if (test()) { - async.doWhilst(iterator, test, callback); - } - else { - callback(); - } - }); + var calls = 0; + return async.whilst(function() { + return ++calls <= 1 || test.apply(this, arguments); + }, iterator, callback); }; async.until = function (test, iterator, callback) { - if (!test()) { - iterator(function (err) { - if (err) { - return callback(err); - } - async.until(test, iterator, callback); - }); - } - else { - callback(); - } + return async.whilst(function() { + return !test.apply(this, arguments); + }, iterator, callback); }; async.doUntil = function (iterator, test, callback) { - iterator(function (err) { - if (err) { - return callback(err); - } - if (!test()) { - async.doUntil(iterator, test, callback); - } - else { - callback(); - } - }); + return async.doWhilst(iterator, function() { + return !test.apply(this, arguments); + }, callback); }; - async.queue = function (worker, concurrency) { - if (concurrency === undefined) { + async.during = function (test, iterator, callback) { + callback = callback || noop; + + var next = _restParam(function(err, args) { + if (err) { + callback(err); + } else { + args.push(check); + test.apply(this, args); + } + }); + + var check = function(err, truth) { + if (err) { + callback(err); + } else if (truth) { + iterator(next); + } else { + callback(null); + } + }; + + test(check); + }; + + async.doDuring = function (iterator, test, callback) { + var calls = 0; + async.during(function(next) { + if (calls++ < 1) { + next(null, true); + } else { + test.apply(this, arguments); + } + }, iterator, callback); + }; + + function _queue(worker, concurrency, payload) { + if (concurrency == null) { concurrency = 1; } + else if(concurrency === 0) { + throw new Error('Concurrency must not be zero'); + } function _insert(q, data, pos, callback) { - if(data.constructor !== Array) { - data = [data]; - } - _each(data, function(task) { - var item = { - data: task, - callback: typeof callback === 'function' ? callback : null - }; + if (callback != null && typeof callback !== "function") { + throw new Error("task callback must be a function"); + } + q.started = true; + if (!_isArray(data)) { + data = [data]; + } + if(data.length === 0 && q.idle()) { + // call drain immediately if there are no tasks + return async.setImmediate(function() { + q.drain(); + }); + } + _arrayEach(data, function(task) { + var item = { + data: task, + callback: callback || noop + }; - if (pos) { - q.tasks.unshift(item); - } else { - q.tasks.push(item); - } + if (pos) { + q.tasks.unshift(item); + } else { + q.tasks.push(item); + } - if (q.saturated && q.tasks.length === concurrency) { - q.saturated(); - } - async.setImmediate(q.process); - }); + if (q.tasks.length === q.concurrency) { + q.saturated(); + } + }); + async.setImmediate(q.process); + } + function _next(q, tasks) { + return function(){ + workers -= 1; + + var removed = false; + var args = arguments; + _arrayEach(tasks, function (task) { + _arrayEach(workersList, function (worker, index) { + if (worker === task && !removed) { + workersList.splice(index, 1); + removed = true; + } + }); + + task.callback.apply(task, args); + }); + if (q.tasks.length + workers === 0) { + q.drain(); + } + q.process(); + }; } var workers = 0; + var workersList = []; var q = { tasks: [], concurrency: concurrency, - saturated: null, - empty: null, - drain: null, + payload: payload, + saturated: noop, + empty: noop, + drain: noop, + started: false, + paused: false, push: function (data, callback) { - _insert(q, data, false, callback); + _insert(q, data, false, callback); + }, + kill: function () { + q.drain = noop; + q.tasks = []; }, unshift: function (data, callback) { - _insert(q, data, true, callback); + _insert(q, data, true, callback); }, process: function () { - if (workers < q.concurrency && q.tasks.length) { - var task = q.tasks.shift(); - if (q.empty && q.tasks.length === 0) { + while(!q.paused && workers < q.concurrency && q.tasks.length){ + + var tasks = q.payload ? + q.tasks.splice(0, q.payload) : + q.tasks.splice(0, q.tasks.length); + + var data = _map(tasks, function (task) { + return task.data; + }); + + if (q.tasks.length === 0) { q.empty(); } workers += 1; - var next = function () { - workers -= 1; - if (task.callback) { - task.callback.apply(task, arguments); - } - if (q.drain && q.tasks.length + workers === 0) { - q.drain(); - } - q.process(); - }; - var cb = only_once(next); - worker(task.data, cb); + workersList.push(tasks[0]); + var cb = only_once(_next(q, tasks)); + worker(data, cb); } }, length: function () { @@ -9625,96 +960,124 @@ define('backend/XmlHttpRequest',["require", "exports", '../core/file_system', '. }, running: function () { return workers; + }, + workersList: function () { + return workersList; + }, + idle: function() { + return q.tasks.length + workers === 0; + }, + pause: function () { + q.paused = true; + }, + resume: function () { + if (q.paused === false) { return; } + q.paused = false; + var resumeCount = Math.min(q.concurrency, q.tasks.length); + // Need to call q.process once per concurrent + // worker to preserve full concurrency after pause + for (var w = 1; w <= resumeCount; w++) { + async.setImmediate(q.process); + } } }; + return q; + } + + async.queue = function (worker, concurrency) { + var q = _queue(function (items, cb) { + worker(items[0], cb); + }, concurrency, 1); + + return q; + }; + + async.priorityQueue = function (worker, concurrency) { + + function _compareTasks(a, b){ + return a.priority - b.priority; + } + + function _binarySearch(sequence, item, compare) { + var beg = -1, + end = sequence.length - 1; + while (beg < end) { + var mid = beg + ((end - beg + 1) >>> 1); + if (compare(item, sequence[mid]) >= 0) { + beg = mid; + } else { + end = mid - 1; + } + } + return beg; + } + + function _insert(q, data, priority, callback) { + if (callback != null && typeof callback !== "function") { + throw new Error("task callback must be a function"); + } + q.started = true; + if (!_isArray(data)) { + data = [data]; + } + if(data.length === 0) { + // call drain immediately if there are no tasks + return async.setImmediate(function() { + q.drain(); + }); + } + _arrayEach(data, function(task) { + var item = { + data: task, + priority: priority, + callback: typeof callback === 'function' ? callback : noop + }; + + q.tasks.splice(_binarySearch(q.tasks, item, _compareTasks) + 1, 0, item); + + if (q.tasks.length === q.concurrency) { + q.saturated(); + } + async.setImmediate(q.process); + }); + } + + // Start with a normal queue + var q = async.queue(worker, concurrency); + + // Override push to accept second parameter representing priority + q.push = function (data, priority, callback) { + _insert(q, data, priority, callback); + }; + + // Remove unshift function + delete q.unshift; + return q; }; async.cargo = function (worker, payload) { - var working = false, - tasks = []; - - var cargo = { - tasks: tasks, - payload: payload, - saturated: null, - empty: null, - drain: null, - push: function (data, callback) { - if(data.constructor !== Array) { - data = [data]; - } - _each(data, function(task) { - tasks.push({ - data: task, - callback: typeof callback === 'function' ? callback : null - }); - if (cargo.saturated && tasks.length === payload) { - cargo.saturated(); - } - }); - async.setImmediate(cargo.process); - }, - process: function process() { - if (working) return; - if (tasks.length === 0) { - if(cargo.drain) cargo.drain(); - return; - } - - var ts = typeof payload === 'number' - ? tasks.splice(0, payload) - : tasks.splice(0); - - var ds = _map(ts, function (task) { - return task.data; - }); - - if(cargo.empty) cargo.empty(); - working = true; - worker(ds, function () { - working = false; - - var args = arguments; - _each(ts, function (data) { - if (data.callback) { - data.callback.apply(null, args); - } - }); - - process(); - }); - }, - length: function () { - return tasks.length; - }, - running: function () { - return working; - } - }; - return cargo; + return _queue(worker, 1, payload); }; - var _console_fn = function (name) { - return function (fn) { - var args = Array.prototype.slice.call(arguments, 1); - fn.apply(null, args.concat([function (err) { - var args = Array.prototype.slice.call(arguments, 1); - if (typeof console !== 'undefined') { + function _console_fn(name) { + return _restParam(function (fn, args) { + fn.apply(null, args.concat([_restParam(function (err, args) { + if (typeof console === 'object') { if (err) { if (console.error) { console.error(err); } } else if (console[name]) { - _each(args, function (x) { + _arrayEach(args, function (x) { console[name](x); }); } } - }])); - }; - }; + })])); + }); + } async.log = _console_fn('log'); async.dir = _console_fn('dir'); /*async.info = _console_fn('info'); @@ -9724,121 +1087,178 @@ define('backend/XmlHttpRequest',["require", "exports", '../core/file_system', '. async.memoize = function (fn, hasher) { var memo = {}; var queues = {}; - hasher = hasher || function (x) { - return x; - }; - var memoized = function () { - var args = Array.prototype.slice.call(arguments); + var has = Object.prototype.hasOwnProperty; + hasher = hasher || identity; + var memoized = _restParam(function memoized(args) { var callback = args.pop(); var key = hasher.apply(null, args); - if (key in memo) { - callback.apply(null, memo[key]); + if (has.call(memo, key)) { + async.setImmediate(function () { + callback.apply(null, memo[key]); + }); } - else if (key in queues) { + else if (has.call(queues, key)) { queues[key].push(callback); } else { queues[key] = [callback]; - fn.apply(null, args.concat([function () { - memo[key] = arguments; + fn.apply(null, args.concat([_restParam(function (args) { + memo[key] = args; var q = queues[key]; delete queues[key]; for (var i = 0, l = q.length; i < l; i++) { - q[i].apply(null, arguments); + q[i].apply(null, args); } - }])); + })])); } - }; + }); memoized.memo = memo; memoized.unmemoized = fn; return memoized; }; async.unmemoize = function (fn) { - return function () { - return (fn.unmemoized || fn).apply(null, arguments); - }; - }; - - async.times = function (count, iterator, callback) { - var counter = []; - for (var i = 0; i < count; i++) { - counter.push(i); - } - return async.map(counter, iterator, callback); - }; - - async.timesSeries = function (count, iterator, callback) { - var counter = []; - for (var i = 0; i < count; i++) { - counter.push(i); - } - return async.mapSeries(counter, iterator, callback); - }; - - async.compose = function (/* functions... */) { - var fns = Array.prototype.reverse.call(arguments); return function () { + return (fn.unmemoized || fn).apply(null, arguments); + }; + }; + + function _times(mapper) { + return function (count, iterator, callback) { + mapper(_range(count), iterator, callback); + }; + } + + async.times = _times(async.map); + async.timesSeries = _times(async.mapSeries); + async.timesLimit = function (count, limit, iterator, callback) { + return async.mapLimit(_range(count), limit, iterator, callback); + }; + + async.seq = function (/* functions... */) { + var fns = arguments; + return _restParam(function (args) { var that = this; - var args = Array.prototype.slice.call(arguments); - var callback = args.pop(); + + var callback = args[args.length - 1]; + if (typeof callback == 'function') { + args.pop(); + } else { + callback = noop; + } + async.reduce(fns, args, function (newargs, fn, cb) { - fn.apply(that, newargs.concat([function () { - var err = arguments[0]; - var nextargs = Array.prototype.slice.call(arguments, 1); + fn.apply(that, newargs.concat([_restParam(function (err, nextargs) { cb(err, nextargs); - }])) + })])); }, function (err, results) { callback.apply(that, [err].concat(results)); }); - }; + }); }; - var _applyEach = function (eachfn, fns /*args...*/) { - var go = function () { - var that = this; - var args = Array.prototype.slice.call(arguments); - var callback = args.pop(); - return eachfn(fns, function (fn, cb) { - fn.apply(that, args.concat([cb])); - }, - callback); - }; - if (arguments.length > 2) { - var args = Array.prototype.slice.call(arguments, 2); - return go.apply(this, args); - } - else { - return go; - } + async.compose = function (/* functions... */) { + return async.seq.apply(null, Array.prototype.reverse.call(arguments)); }; - async.applyEach = doParallel(_applyEach); - async.applyEachSeries = doSeries(_applyEach); + + + function _applyEach(eachfn) { + return _restParam(function(fns, args) { + var go = _restParam(function(args) { + var that = this; + var callback = args.pop(); + return eachfn(fns, function (fn, _, cb) { + fn.apply(that, args.concat([cb])); + }, + callback); + }); + if (args.length) { + return go.apply(this, args); + } + else { + return go; + } + }); + } + + async.applyEach = _applyEach(async.eachOf); + async.applyEachSeries = _applyEach(async.eachOfSeries); + async.forever = function (fn, callback) { + var done = only_once(callback || noop); + var task = ensureAsync(fn); function next(err) { if (err) { - if (callback) { - return callback(err); - } - throw err; + return done(err); } - fn(next); + task(next); } next(); }; - // AMD / RequireJS - if (typeof define !== 'undefined' && define.amd) { - define('async',[], function () { - return async; + function ensureAsync(fn) { + return _restParam(function (args) { + var callback = args.pop(); + args.push(function () { + var innerArgs = arguments; + if (sync) { + async.setImmediate(function () { + callback.apply(null, innerArgs); + }); + } else { + callback.apply(null, innerArgs); + } + }); + var sync = true; + fn.apply(this, args); + sync = false; }); } + + async.ensureAsync = ensureAsync; + + async.constant = _restParam(function(values) { + var args = [null].concat(values); + return function (callback) { + return callback.apply(this, args); + }; + }); + + async.wrapSync = + async.asyncify = function asyncify(func) { + return _restParam(function (args) { + var callback = args.pop(); + var result; + try { + result = func.apply(this, args); + } catch (e) { + return callback(e); + } + // if result is Promise object + if (_isObject(result) && typeof result.then === "function") { + result.then(function(value) { + callback(null, value); + })["catch"](function(err) { + callback(err.message ? err : new Error(err)); + }); + } else { + callback(null, result); + } + }); + }; + // Node.js - else if (typeof module !== 'undefined' && module.exports) { + if (typeof module === 'object' && module.exports) { module.exports = async; } + // AMD / RequireJS + else if (typeof define === 'function' && define.amd) { + define([], function () { + return async; + }); + } // included directly via \r\n"); +} +var bfs = _dereq_('./core/browserfs'); +module.exports = bfs; +},{"./core/browserfs":51,"./core/global":55}]},{},[47])(47) +}); +//# sourceMappingURL=browserfs.js.map diff --git a/emscripten/browserfs.min.js b/emscripten/browserfs.min.js index 545b655885..c99ac41bfe 100644 --- a/emscripten/browserfs.min.js +++ b/emscripten/browserfs.min.js @@ -1,6 +1,9 @@ -!function(){if(Date.now||(Date.now=function(){return(new Date).getTime()}),Array.isArray||(Array.isArray=function(t){return"[object Array]"===Object.prototype.toString.call(t)}),Object.keys||(Object.keys=function(){var 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2:return this.unlinkSync(t),this.createFileSync(t,e,r.mode);case 0:return this.openFileSync(t,e);default:throw new a(9,"Invalid FileFlag object.")}},t.prototype.unlink=function(t,e){e(new a(14))},t.prototype.unlinkSync=function(){throw new a(14)},t.prototype.rmdir=function(t,e){e(new a(14))},t.prototype.rmdirSync=function(){throw new a(14)},t.prototype.mkdir=function(t,e,n){n(new a(14))},t.prototype.mkdirSync=function(){throw new a(14)},t.prototype.readdir=function(t,e){e(new a(14))},t.prototype.readdirSync=function(){throw new a(14)},t.prototype.exists=function(t,e){this.stat(t,null,function(t){e(null==t)})},t.prototype.existsSync=function(t){try{return this.statSync(t,!0),!0}catch(e){return!1}},t.prototype.realpath=function(t,e,n){if(this.supportsLinks())for(var r=t.split(s.sep),i=0;ithis._buffer.length){var e=new u(t-this._buffer.length);return e.fill(0),this.writeSync(e,0,e.length,this._buffer.length),this._flag.isSynchronous()&&s.getRootFS().supportsSynch()&&this.syncSync(),void 0}this._stat.size=t;var n=new u(t);this._buffer.copy(n,0,0,t),this._buffer=n,this._flag.isSynchronous()&&s.getRootFS().supportsSynch()&&this.syncSync()},e.prototype.write=function(t,e,n,r,i){try{i(null,this.writeSync(t,e,n,r),t)}catch(o){i(o)}},e.prototype.writeSync=function(t,e,n,r){if(null==r&&(r=this.getPos()),!this._flag.isWriteable())throw new a(0,"File not opened with a writeable mode.");var i=r+n;if(i>this._stat.size&&(this._stat.size=i,i>this._buffer.length)){var o=new u(i);this._buffer.copy(o),this._buffer=o}var s=t.copy(this._buffer,r,e,e+n);return this._stat.mtime=new Date,this._flag.isSynchronous()?(this.syncSync(),s):(this.setPos(r+s),s)},e.prototype.read=function(t,e,n,r,i){try{i(null,this.readSync(t,e,n,r),t)}catch(o){i(o)}},e.prototype.readSync=function(t,e,n,r){if(!this._flag.isReadable())throw new a(0,"File not opened with a readable mode.");null==r&&(r=this.getPos());var i=r+n;i>this._stat.size&&(n=this._stat.size-r);var o=this._buffer.copy(t,e,r,r+n);return this._stat.atime=new Date,this._pos=r+n,o},e.prototype.chmod=function(t,e){try{this.chmodSync(t),e()}catch(n){e(n)}},e.prototype.chmodSync=function(t){if(!this._fs.supportsProps())throw new a(14);this._stat.chmod(t),this.syncSync()},e}(n.BaseFile);e.PreloadFile=c;var p=function(t){function e(e,n,r,i,o){t.call(this,e,n,r,i,o)}return f(e,t),e.prototype.sync=function(t){t()},e.prototype.syncSync=function(){},e.prototype.close=function(t){t()},e.prototype.closeSync=function(){},e}(c);e.NoSyncFile=p});var f=this.__extends||function(t,e){function n(){this.constructor=t}for(var r in e)e.hasOwnProperty(r)&&(t[r]=e[r]);n.prototype=e.prototype,t.prototype=new n};u("generic/key_value_filesystem",["require","exports","../core/file_system","../core/api_error","../core/node_fs_stats","../core/node_path","../generic/inode","../core/buffer","../generic/preload_file"],function(t,e,n,r,i,o,a,s,u){function c(){return"xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(/[xy]/g,function(t){var 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f(e,t),e.prototype.sync=function(t){this._fs._sync(this._path,this._buffer,this._stat,t)},e.prototype.close=function(t){this.sync(t)},e}(u.PreloadFile);e.AsyncKeyValueFile=b;var E=function(t){function e(){t.apply(this,arguments)}return f(e,t),e.prototype.init=function(t,e){this.store=t,this.makeRootDirectory(e)},e.isAvailable=function(){return!0},e.prototype.getName=function(){return this.store.name()},e.prototype.isReadOnly=function(){return!1},e.prototype.supportsSymlinks=function(){return!1},e.prototype.supportsProps=function(){return!1},e.prototype.supportsSynch=function(){return!1},e.prototype.makeRootDirectory=function(t){var e=this.store.beginTransaction("readwrite");e.get(l,function(n,r){if(n||void 0===r){var i=(new Date).getTime(),o=new a(c(),4096,16895,i,i,i);e.put(o.id,new g("{}"),!1,function(n){h(n,e,t)&&e.put(l,o.toBuffer(),!1,function(n){n?e.abort(function(){t(n)}):e.commit(t)})})}else e.commit(t)})},e.prototype._findINode=function(t,e,n,r){var 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l=c[o],d=f[o],w=c[s],m=f[s];if(l[a]){var v=l[a];delete l[a];var b=function(){w[u]=v,i.put(d.id,new g(JSON.stringify(l)),!0,function(t){h(t,i,n)&&(o===s?i.commit(n):i.put(m.id,new g(JSON.stringify(w)),!0,function(t){h(t,i,n)&&i.commit(n)}))})};w[u]?r.getINode(i,e,w[u],function(t,r){h(t,i,n)&&(r.isFile()?i.delete(r.id,function(t){h(t,i,n)&&i.delete(w[u],function(t){h(t,i,n)&&b()})}):i.abort(function(){n(y.EPERM(e))}))}):b()}else n(y.ENOENT(t))}},w=function(t){r.findINodeAndDirListing(i,t,function(e,r,o){e?p||(p=!0,i.abort(function(){n(e)})):(f[t]=r,c[t]=o,l())})};w(o),o!==s&&w(s)},e.prototype.stat=function(t,e,n){var r=this.store.beginTransaction("readonly");this.findINode(r,t,function(t,e){p(t,n)&&n(null,e.toStats())})},e.prototype.createFile=function(t,e,n,r){var i=this,o=this.store.beginTransaction("readwrite"),a=new g(0);this.commitNewFile(o,t,32768,n,a,function(n,o){p(n,r)&&r(null,new b(i,t,e,o.toStats(),a))})},e.prototype.openFile=function(t,e,n){var r=this,i=this.store.beginTransaction("readonly");this.findINode(i,t,function(o,a){p(o,n)&&i.get(a.id,function(i,o){p(i,n)&&(void 0===o?n(y.ENOENT(t)):n(null,new b(r,t,e,a.toStats(),o)))})})},e.prototype.removeEntry=function(t,e,n){var r=this,i=this.store.beginTransaction("readwrite"),o=d.dirname(t),a=d.basename(t);this.findINodeAndDirListing(i,o,function(o,s,u){if(h(o,i,n))if(u[a]){var f=u[a];delete u[a],r.getINode(i,t,f,function(r,o){h(r,i,n)&&(!e&&o.isDirectory()?i.abort(function(){n(y.EISDIR(t))}):e&&!o.isDirectory()?i.abort(function(){n(y.ENOTDIR(t))}):i.delete(o.id,function(t){h(t,i,n)&&i.delete(f,function(t){h(t,i,n)&&i.put(s.id,new g(JSON.stringify(u)),!0,function(t){h(t,i,n)&&i.commit(n)})})}))})}else i.abort(function(){n(y.ENOENT(t))})})},e.prototype.unlink=function(t,e){this.removeEntry(t,!1,e)},e.prototype.rmdir=function(t,e){this.removeEntry(t,!0,e)},e.prototype.mkdir=function(t,e,n){var r=this.store.beginTransaction("readwrite"),i=new g("{}");this.commitNewFile(r,t,16384,e,i,n)},e.prototype.readdir=function(t,e){var n=this,r=this.store.beginTransaction("readonly");this.findINode(r,t,function(i,o){p(i,e)&&n.getDirListing(r,t,o,function(t,n){p(t,e)&&e(null,Object.keys(n))})})},e.prototype._sync=function(t,e,n,r){var i=this,o=this.store.beginTransaction("readwrite");this._findINode(o,d.dirname(t),d.basename(t),function(a,s){h(a,o,r)&&i.getINode(o,t,s,function(t,i){if(h(t,o,r)){var a=i.update(n);o.put(i.id,e,!0,function(t){h(t,o,r)&&(a?o.put(s,i.toBuffer(),!0,function(t){h(t,o,r)&&o.commit(r)}):o.commit(r))})}})})},e}(n.BaseFileSystem);e.AsyncKeyValueFileSystem=E}),u("core/global",["require","exports"],function(){var t;return t="undefined"!=typeof window?window:"undefined"!=typeof self?self:global});var f=this.__extends||function(t,e){function n(){this.constructor=t}for(var r in e)e.hasOwnProperty(r)&&(t[r]=e[r]);n.prototype=e.prototype,t.prototype=new n};u("backend/IndexedDB",["require","exports","../core/buffer","../core/browserfs","../generic/key_value_filesystem","../core/api_error","../core/buffer_core_arraybuffer","../core/global"],function(t,e,n,r,i,o,a,s){function u(t,e){switch("undefined"==typeof e&&(e=t.toString()),t.name){case"NotFoundError":return new l(1,e);case"QuotaExceededError":return new l(11,e);default:return new l(2,e)}}function c(t,e,n){return"undefined"==typeof e&&(e=2),"undefined"==typeof n&&(n=null),function(r){r.preventDefault(),t(new l(e,n))}}function p(t){var e=t.getBufferCore();e instanceof a.BufferCoreArrayBuffer||(t=new h(this._buffer.length),this._buffer.copy(t),e=t.getBufferCore());var n=e.getDataView();return n.buffer}var h=n.Buffer,l=o.ApiError,d=(o.ErrorCode,s.indexedDB||s.mozIndexedDB||s.webkitIndexedDB||s.msIndexedDB),y=function(){function t(t,e){this.tx=t,this.store=e}return t.prototype.get=function(t,e){try{var n=this.store.get(t);n.onerror=c(e),n.onsuccess=function(t){var n=t.target.result;void 0===n?e(null,n):e(null,new h(n))}}catch(r){e(u(r))}},t}();e.IndexedDBROTransaction=y;var g=function(t){function e(e,n){t.call(this,e,n)}return f(e,t),e.prototype.put=function(t,e,n,r){try{var i,o=p(e);i=n?this.store.put(o,t):this.store.add(o,t),i.onerror=c(r),i.onsuccess=function(){r(null,!0)}}catch(a){r(u(a))}},e.prototype.delete=function(t,e){try{var n=this.store.delete(t);n.onerror=c(e),n.onsuccess=function(){e()}}catch(r){e(u(r))}},e.prototype.commit=function(t){setTimeout(t,0)},e.prototype.abort=function(t){var e;try{this.tx.abort()}catch(n){e=u(n)}finally{t(e)}},e}(y);e.IndexedDBRWTransaction=g;var w=function(){function t(t,e){"undefined"==typeof e&&(e="browserfs");var n=this;this.storeName=e;var r=d.open(this.storeName,1);r.onupgradeneeded=function(t){var e=t.target.result;e.objectStoreNames.contains(n.storeName)&&e.deleteObjectStore(n.storeName),e.createObjectStore(n.storeName)},r.onsuccess=function(e){n.db=e.target.result,t(null,n)},r.onerror=c(t,4)}return 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a=i._makeFile(t,e,n,o.result);r(null,a)},o.onerror=a,o.readAsArrayBuffer(n)};n.file(o,s)};this.fs.root.getFile(t,o,u,a)},e.prototype._statType=function(t){return t.isFile?32768:16384},e.prototype._makeFile=function(t,e,n,r){"undefined"==typeof r&&(r=new ArrayBuffer(0));var i=new g(32768,n.size),o=new y(r);return new b(this,t,e,i,o)},e.prototype._remove=function(t,e,n){var r=this,i=function(n){var i=function(){e()},o=function(n){e(r.convert(n,t))};n.remove(i,o)},o=function(n){e(r.convert(n,t))},a={create:!1};n?this.fs.root.getFile(t,a,i,o):this.fs.root.getDirectory(t,a,i,o)},e.prototype.unlink=function(t,e){this._remove(t,e,!0)},e.prototype.rmdir=function(t,e){this._remove(t,e,!1)},e.prototype.mkdir=function(t,e,n){var r=this,i={create:!0,exclusive:!0},o=function(){n()},a=function(e){n(r.convert(e,t))};this.fs.root.getDirectory(t,i,o,a)},e.prototype._readdir=function(t,e){var n=this;this.fs.root.getDirectory(t,{create:!1},function(r){var i=r.createReader(),o=[],a=function(r){e(n.convert(r,t))},s=function(){i.readEntries(function(t){t.length?(o=o.concat(d(t)),s()):e(null,o)},a)};s()})},e.prototype.readdir=function(t,e){this._readdir(t,function(t,n){if(null!=t)return e(t);for(var r=[],i=0;i0&&t[0]instanceof i.ApiError&&s.standardizeError(t[0],o.path,r),a.apply(null,t)}}return o.fs[t].apply(o.fs,e)}}var u=i.ApiError;i.ErrorCode;var c=o.fs,p=function(t){function e(){t.call(this),this.mntMap={},this.rootFs=new r.InMemoryFileSystem}return f(e,t),e.prototype.mount=function(t,e){if(this.mntMap[t])throw new u(9,"Mount point "+t+" is already taken.");this.rootFs.mkdirSync(t,511),this.mntMap[t]=e},e.prototype.umount=function(t){if(!this.mntMap[t])throw new u(9,"Mount point "+t+" is already unmounted.");delete this.mntMap[t],this.rootFs.rmdirSync(t)},e.prototype._get_fs=function(t){for(var e in this.mntMap){var n=this.mntMap[e];if(0===t.indexOf(e))return t=t.substr(e.length>1?e.length:0),""===t&&(t="/"),{fs:n,path:t}}return{fs:this.rootFs,path:t}},e.prototype.getName=function(){return"MountableFileSystem"},e.isAvailable=function(){return!0},e.prototype.diskSpace=function(t,e){e(0,0)},e.prototype.isReadOnly=function(){return!1},e.prototype.supportsLinks=function(){return!1},e.prototype.supportsProps=function(){return!1},e.prototype.supportsSynch=function(){return!0},e.prototype.standardizeError=function(t,e,n){var r;return-1!==(r=t.message.indexOf(e))&&(t.message=t.message.substr(0,r)+n+t.message.substr(r+e.length)),t},e.prototype.rename=function(t,e,n){var r=this._get_fs(t),i=this._get_fs(e);if(r.fs===i.fs){var o=this;return r.fs.rename(r.path,i.path,function(a){a&&o.standardizeError(o.standardizeError(a,r.path,t),i.path,e),n(a)})}return c.readFile(t,function(r,i){return r?n(r):(c.writeFile(e,i,function(e){return e?n(e):(c.unlink(t,n),void 0)}),void 0)})},e.prototype.renameSync=function(t,e){var n=this._get_fs(t),r=this._get_fs(e);if(n.fs===r.fs)try{return n.fs.renameSync(n.path,r.path)}catch(i){throw this.standardizeError(this.standardizeError(i,n.path,t),r.path,e),i}var o=c.readFileSync(t);return c.writeFileSync(e,o),c.unlinkSync(t)},e}(n.BaseFileSystem);e.MountableFileSystem=p;for(var h=[["readdir","exists","unlink","rmdir","readlink"],["stat","mkdir","realpath","truncate"],["open","readFile","chmod","utimes"],["chown"],["writeFile","appendFile"]],l=0;lf;++f)t[f]>h&&(h=t[f]),t[f]=r;){for(f=0;p>f;++f)if(t[f]===r){for(a=0,s=i,c=0;r>c;++c)a=a<<1|1&s,s>>=1;for(c=a;e>c;c+=o)n[c]=r<<16|f;++i}++r,i<<=1,o<<=1}return[n,h,l]}function n(t,e){switch(this.g=[],this.h=32768,this.c=this.f=this.d=this.k=0,this.input=u?new Uint8Array(t):t,this.l=!1,this.i=c,this.p=!1,(e||!(e={}))&&(e.index&&(this.d=e.index),e.bufferSize&&(this.h=e.bufferSize),e.bufferType&&(this.i=e.bufferType),e.resize&&(this.p=e.resize)),this.i){case f:this.a=32768,this.b=new(u?Uint8Array:Array)(32768+this.h+258);break;case c:this.a=0,this.b=new(u?Uint8Array:Array)(this.h),this.e=this.u,this.m=this.r,this.j=this.s;break;default:throw Error("invalid inflate mode")}}function r(t,e){for(var n,r=t.f,i=t.c,o=t.input,s=t.d;e>i;){if(n=o[s++],n===a)throw Error("input buffer is broken");r|=n<>>e,t.c=i-e,t.d=s,n}function i(t,e){for(var n,r,i,o=t.f,s=t.c,u=t.input,f=t.d,c=e[0],p=e[1];p>s&&(n=u[f++],n!==a);)o|=n<>>16,t.f=o>>i,t.c=s-i,t.d=f,65535&r}function o(t){function n(t,e,n){var o,a,s,u;for(u=0;t>u;)switch(o=i(this,e)){case 16:for(s=3+r(this,2);s--;)n[u++]=a;break;case 17:for(s=3+r(this,3);s--;)n[u++]=0;a=0;break;case 18:for(s=11+r(this,7);s--;)n[u++]=0;a=0;break;default:a=n[u++]=o}return n}var o,a,s,f,c=r(t,5)+257,p=r(t,5)+1,h=r(t,4)+4,l=new(u?Uint8Array:Array)(d.length);for(f=0;h>f;++f)l[d[f]]=r(t,3);o=e(l),a=new(u?Uint8Array:Array)(c),s=new(u?Uint8Array:Array)(p),t.j(e(n.call(t,c,o,a)),e(n.call(t,p,o,s)))}var a=void 0,s=this,u="undefined"!=typeof Uint8Array&&"undefined"!=typeof Uint16Array&&"undefined"!=typeof Uint32Array,f=0,c=1;n.prototype.t=function(){for(;!this.l;){var t=r(this,3);switch(1&t&&(this.l=!0),t>>>=1){case 0:var e=this.input,n=this.d,i=this.b,s=this.a,p=a,h=a,l=a,d=i.length,y=a;if(this.c=this.f=0,p=e[n++],p===a)throw Error("invalid uncompressed block header: LEN (first byte)");if(h=p,p=e[n++],p===a)throw Error("invalid uncompressed block header: LEN (second byte)");if(h|=p<<8,p=e[n++],p===a)throw Error("invalid uncompressed block header: NLEN (first byte)");if(l=p,p=e[n++],p===a)throw Error("invalid uncompressed block header: NLEN (second byte)");if(l|=p<<8,h===~l)throw Error("invalid uncompressed block header: length verify");if(n+h>e.length)throw Error("input buffer is broken");switch(this.i){case f:for(;s+h>i.length;){if(y=d-s,h-=y,u)i.set(e.subarray(n,n+y),s),s+=y,n+=y;else for(;y--;)i[s++]=e[n++];this.a=s,i=this.e(),s=this.a}break;case c:for(;s+h>i.length;)i=this.e({o:2});break;default:throw Error("invalid inflate mode")}if(u)i.set(e.subarray(n,n+h),s),s+=h,n+=h;else for(;h--;)i[s++]=e[n++];this.d=n,this.a=s,this.b=i;break;case 1:this.j(A,N);break;case 2:o(this);break;default:throw Error("unknown BTYPE: "+t)}}return this.m()};var p,h,l=[16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15],d=u?new Uint16Array(l):l,y=[3,4,5,6,7,8,9,10,11,13,15,17,19,23,27,31,35,43,51,59,67,83,99,115,131,163,195,227,258,258,258],g=u?new Uint16Array(y):y,w=[0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0,0,0],m=u?new Uint8Array(w):w,v=[1,2,3,4,5,7,9,13,17,25,33,49,65,97,129,193,257,385,513,769,1025,1537,2049,3073,4097,6145,8193,12289,16385,24577],b=u?new Uint16Array(v):v,E=[0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13],S=u?new Uint8Array(E):E,I=new(u?Uint8Array:Array)(288);for(p=0,h=I.length;h>p;++p)I[p]=143>=p?8:255>=p?9:279>=p?7:8;var _,F,A=e(I),x=new(u?Uint8Array:Array)(30);for(_=0,F=x.length;F>_;++_)x[_]=5;var N=e(x);n.prototype.j=function(t,e){var n=this.b,o=this.a;this.n=t;for(var a,s,u,f,c=n.length-258;256!==(a=i(this,t));)if(256>a)o>=c&&(this.a=o,n=this.e(),o=this.a),n[o++]=a;else for(s=a-257,f=g[s],0=c&&(this.a=o,n=this.e(),o=this.a);f--;)n[o]=n[o++-u];for(;8<=this.c;)this.c-=8,this.d--;this.a=o},n.prototype.s=function(t,e){var n=this.b,o=this.a;this.n=t;for(var a,s,u,f,c=n.length;256!==(a=i(this,t));)if(256>a)o>=c&&(n=this.e(),c=n.length),n[o++]=a;else for(s=a-257,f=g[s],0c&&(n=this.e(),c=n.length);f--;)n[o]=n[o++-u];for(;8<=this.c;)this.c-=8,this.d--;this.a=o},n.prototype.e=function(){var t,e,n=new(u?Uint8Array:Array)(this.a-32768),r=this.a-32768,i=this.b;if(u)n.set(i.subarray(32768,n.length));else for(t=0,e=n.length;e>t;++t)n[t]=i[t+32768];if(this.g.push(n),this.k+=n.length,u)i.set(i.subarray(r,r+32768));else for(t=0;32768>t;++t)i[t]=i[r+t];return this.a=32768,i},n.prototype.u=function(t){var e,n,r,i,o=0|this.input.length/this.d+1,a=this.input,s=this.b;return t&&("number"==typeof t.o&&(o=t.o),"number"==typeof t.q&&(o+=t.q)),2>o?(n=(a.length-this.d)/this.n[2],i=0|258*(n/2),r=ie;++e)for(t=s[e],r=0,i=t.length;i>r;++r)f[o++]=t[r];for(e=32768,n=this.a;n>e;++e)f[o++]=a[e];return this.g=[],this.buffer=f},n.prototype.r=function(){var t,e=this.a;return u?this.p?(t=new Uint8Array(e),t.set(this.b.subarray(0,e))):t=this.b.subarray(0,e):(this.b.length>e&&(this.b.length=e),t=this.b),this.buffer=t},t("Zlib.RawInflate",n),t("Zlib.RawInflate.prototype.decompress",n.prototype.t);var L,U,D,T,O={ADAPTIVE:c,BLOCK:f};if(Object.keys)L=Object.keys(O);else for(U in L=[],D=0,O)L[D++]=U;for(D=0,T=L.length;T>D;++D)U=L[D],t("Zlib.RawInflate.BufferType."+U,O[U])}.call(this),u("zlib",function(t){return function(){var e;return e||t.Zlib.RawInflate}}(this));var f=this.__extends||function(t,e){function n(){this.constructor=t}for(var r in e)e.hasOwnProperty(r)&&(t[r]=e[r]);n.prototype=e.prototype,t.prototype=new n};u("backend/zipfs",["require","exports","../core/buffer","../core/api_error","../generic/file_index","../core/browserfs","../core/node_fs_stats","../core/file_system","../core/file_flag","../core/buffer_core_arraybuffer","../generic/preload_file","zlib"],function(t,e,n,r,i,o,a,s,u,c,p){function h(t,e){var n=31&e,r=(15&e>>5)-1,i=(e>>9)+1980,o=31&t,a=63&t>>5,s=t>>11;return new Date(i,r,n,s,a,o)}function l(t,e,n,r){return 0===r?"":t.toString(e?"utf8":"extended_ascii",n,n+r)}var d=r.ApiError;r.ErrorCode,u.ActionType;var y=Zlib.RawInflate;!function(t){t[t.MSDOS=0]="MSDOS",t[t.AMIGA=1]="AMIGA",t[t.OPENVMS=2]="OPENVMS",t[t.UNIX=3]="UNIX",t[t.VM_CMS=4]="VM_CMS",t[t.ATARI_ST=5]="ATARI_ST",t[t.OS2_HPFS=6]="OS2_HPFS",t[t.MAC=7]="MAC",t[t.Z_SYSTEM=8]="Z_SYSTEM",t[t.CP_M=9]="CP_M",t[t.NTFS=10]="NTFS",t[t.MVS=11]="MVS",t[t.VSE=12]="VSE",t[t.ACORN_RISC=13]="ACORN_RISC",t[t.VFAT=14]="VFAT",t[t.ALT_MVS=15]="ALT_MVS",t[t.BEOS=16]="BEOS",t[t.TANDEM=17]="TANDEM",t[t.OS_400=18]="OS_400",t[t.OSX=19]="OSX" -}(e.ExternalFileAttributeType||(e.ExternalFileAttributeType={})),e.ExternalFileAttributeType,function(t){t[t.STORED=0]="STORED",t[t.SHRUNK=1]="SHRUNK",t[t.REDUCED_1=2]="REDUCED_1",t[t.REDUCED_2=3]="REDUCED_2",t[t.REDUCED_3=4]="REDUCED_3",t[t.REDUCED_4=5]="REDUCED_4",t[t.IMPLODE=6]="IMPLODE",t[t.DEFLATE=8]="DEFLATE",t[t.DEFLATE64=9]="DEFLATE64",t[t.TERSE_OLD=10]="TERSE_OLD",t[t.BZIP2=12]="BZIP2",t[t.LZMA=14]="LZMA",t[t.TERSE_NEW=18]="TERSE_NEW",t[t.LZ77=19]="LZ77",t[t.WAVPACK=97]="WAVPACK",t[t.PPMD=98]="PPMD"}(e.CompressionMethod||(e.CompressionMethod={}));var g=e.CompressionMethod,w=function(){function t(t){if(this.data=t,67324752!==t.readUInt32LE(0))throw new d(9,"Invalid Zip file: Local file header has invalid signature: "+this.data.readUInt32LE(0))}return t.prototype.versionNeeded=function(){return this.data.readUInt16LE(4)},t.prototype.flags=function(){return this.data.readUInt16LE(6)},t.prototype.compressionMethod=function(){return this.data.readUInt16LE(8)},t.prototype.lastModFileTime=function(){return h(this.data.readUInt16LE(10),this.data.readUInt16LE(12))},t.prototype.crc32=function(){return this.data.readUInt32LE(14)},t.prototype.fileNameLength=function(){return this.data.readUInt16LE(26)},t.prototype.extraFieldLength=function(){return this.data.readUInt16LE(28)},t.prototype.fileName=function(){return l(this.data,this.useUTF8(),30,this.fileNameLength())},t.prototype.extraField=function(){var t=30+this.fileNameLength();return this.data.slice(t,t+this.extraFieldLength())},t.prototype.totalSize=function(){return 30+this.fileNameLength()+this.extraFieldLength()},t.prototype.useUTF8=function(){return 2048===(2048&this.flags())},t}();e.FileHeader=w;var m=function(){function t(t,e,n){this.header=t,this.record=e,this.data=n}return t.prototype.decompress=function(){var t=this.data,e=this.header.compressionMethod();switch(e){case 8:if(t.getBufferCore()instanceof c.BufferCoreArrayBuffer){var r=t.getBufferCore(),i=r.getDataView(),o=i.byteOffset+t.getOffset(),a=new Uint8Array(i.buffer).subarray(o,o+this.record.compressedSize()),s=new y(a).decompress();return new n.Buffer(new c.BufferCoreArrayBuffer(s.buffer),s.byteOffset,s.byteOffset+s.length)}var u=t.slice(0,this.record.compressedSize());return new n.Buffer(new y(u.toJSON().data).decompress());case 0:return t.sliceCopy(0,this.record.uncompressedSize());default:var f=g[e];throw f=f?f:"Unknown: "+e,new d(9,"Invalid compression method on file '"+this.header.fileName()+"': "+f)}},t}();e.FileData=m;var v=function(){function t(t){this.data=t}return t.prototype.crc32=function(){return this.data.readUInt32LE(0)},t.prototype.compressedSize=function(){return this.data.readUInt32LE(4)},t.prototype.uncompressedSize=function(){return this.data.readUInt32LE(8)},t}();e.DataDescriptor=v;var b=function(){function t(t){if(this.data=t,134630224!==this.data.readUInt32LE(0))throw new d(9,"Invalid archive extra data record signature: "+this.data.readUInt32LE(0))}return t.prototype.length=function(){return this.data.readUInt32LE(4)},t.prototype.extraFieldData=function(){return this.data.slice(8,8+this.length())},t}();e.ArchiveExtraDataRecord=b;var E=function(){function t(t){if(this.data=t,84233040!==this.data.readUInt32LE(0))throw new d(9,"Invalid digital signature signature: "+this.data.readUInt32LE(0))}return t.prototype.size=function(){return this.data.readUInt16LE(4)},t.prototype.signatureData=function(){return this.data.slice(6,6+this.size())},t}();e.DigitalSignature=E;var S=function(){function t(t,e){if(this.zipData=t,this.data=e,33639248!==this.data.readUInt32LE(0))throw new d(9,"Invalid Zip file: Central directory record has invalid signature: "+this.data.readUInt32LE(0))}return t.prototype.versionMadeBy=function(){return this.data.readUInt16LE(4)},t.prototype.versionNeeded=function(){return this.data.readUInt16LE(6)},t.prototype.flag=function(){return this.data.readUInt16LE(8)},t.prototype.compressionMethod=function(){return this.data.readUInt16LE(10)},t.prototype.lastModFileTime=function(){return h(this.data.readUInt16LE(12),this.data.readUInt16LE(14))},t.prototype.crc32=function(){return this.data.readUInt32LE(16)},t.prototype.compressedSize=function(){return this.data.readUInt32LE(20)},t.prototype.uncompressedSize=function(){return this.data.readUInt32LE(24)},t.prototype.fileNameLength=function(){return this.data.readUInt16LE(28)},t.prototype.extraFieldLength=function(){return this.data.readUInt16LE(30)},t.prototype.fileCommentLength=function(){return this.data.readUInt16LE(32)},t.prototype.diskNumberStart=function(){return this.data.readUInt16LE(34)},t.prototype.internalAttributes=function(){return this.data.readUInt16LE(36)},t.prototype.externalAttributes=function(){return this.data.readUInt32LE(38)},t.prototype.headerRelativeOffset=function(){return this.data.readUInt32LE(42)},t.prototype.fileName=function(){var t=l(this.data,this.useUTF8(),46,this.fileNameLength());return t.replace(/\\/g,"/")},t.prototype.extraField=function(){var t=44+this.fileNameLength();return this.data.slice(t,t+this.extraFieldLength())},t.prototype.fileComment=function(){var t=46+this.fileNameLength()+this.extraFieldLength();return l(this.data,this.useUTF8(),t,this.fileCommentLength())},t.prototype.totalSize=function(){return 46+this.fileNameLength()+this.extraFieldLength()+this.fileCommentLength()},t.prototype.isDirectory=function(){var t=this.fileName();return(16&this.externalAttributes()?!0:!1)||"/"===t.charAt(t.length-1)},t.prototype.isFile=function(){return!this.isDirectory()},t.prototype.useUTF8=function(){return 2048===(2048&this.flag())},t.prototype.isEncrypted=function(){return 1===(1&this.flag())},t.prototype.getData=function(){var t=this.headerRelativeOffset(),e=new w(this.zipData.slice(t)),n=new m(e,this,this.zipData.slice(t+e.totalSize()));return n.decompress()},t.prototype.getStats=function(){return new 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0===c&&(c=this.length),b>>=0,c>>=0,0>b&&(b+=this.length,0>b&&(b=0)),0>c&&(c+=this.length,0>c&&(c=0)),c>this.length&&(c=this.length),b>c&&(b=c),0>b||0>c||b>this.length||c>this.length)throw new Error("Invalid slice indices.");return new a(this.data,b+this.offset,c+this.offset)},a.prototype.sliceCopy=function(b,c){if(void 0===b&&(b=0),void 0===c&&(c=this.length),0>b&&(b+=this.length,0>b&&(b=0)),0>c&&(c+=this.length,0>c&&(c=0)),c>this.length&&(c=this.length),b>c&&(b=c),0>b||0>c||b>=this.length||c>this.length)throw new Error("Invalid slice indices.");return new a(this.data.copy(b+this.offset,c+this.offset))},a.prototype.fill=function(b,c,d){void 0===c&&(c=0),void 0===d&&(d=this.length);if(c>>=0,d>>=0,0>c||d>this.length)throw new RangeError("out of range index");if(c>=d)return this;if("string"!=typeof b)b>>>=0;else if(1===b.length){var e=b.charCodeAt(0);256>e&&(b=e)}if("number"==typeof b)c+=this.offset,d+=this.offset,this.data.fill(b,c,d);else if(b.length>0){for(var f=a.byteLength(b,"utf8"),g=d-f;g>c;)this.write(b,c,f,"utf8"),c+=f;d>c&&this.write(b,c,d-c,"utf8")}return this},a.prototype.readUIntLE=function(a,b,c){void 0===c&&(c=!1),a>>>=0,b>>>=0,c||f(a,b,this.length),a+=this.offset;var d=0;switch(b){case 1:return this.data.readUInt8(a);case 2:return this.data.readUInt16LE(a);case 3:return this.data.readUInt8(a)|this.data.readUInt16LE(a+1)<<8;case 4:return this.data.readUInt32LE(a);case 6:d+=131072*(this.data.readUInt8(a+5)<<23);case 5:return d+=512*(this.data.readUInt8(a+4)<<23),d+this.data.readUInt32LE(a);default:throw new Error("Invalid byteLength: "+b)}},a.prototype.readUIntBE=function(a,b,c){void 0===c&&(c=!1),a>>>=0,b>>>=0,c||f(a,b,this.length),a+=this.offset;var d=0;switch(b){case 1:return this.data.readUInt8(a);case 2:return this.data.readUInt16BE(a);case 3:return this.data.readUInt8(a+2)|this.data.readUInt16BE(a)<<8;case 4:return this.data.readUInt32BE(a);case 6:d+=131072*(this.data.readUInt8(a)<<23),a++;case 5:return d+=512*(this.data.readUInt8(a)<<23),d+this.data.readUInt32BE(a+1);default:throw new Error("Invalid byteLength: "+b)}},a.prototype.readIntLE=function(a,b,c){switch(void 0===c&&(c=!1),a>>>=0,b>>>=0,c||f(a,b,this.length),a+=this.offset,b){case 1:return this.data.readInt8(a);case 2:return this.data.readInt16LE(a);case 3:return this.data.readUInt8(a)|this.data.readInt16LE(a+1)<<8;case 4:return this.data.readInt32LE(a);case 6:return 131072*(this.data.readInt8(a+5)<<23)+this.readUIntLE(a-this.offset,5,c);case 5:return 512*(this.data.readInt8(a+4)<<23)+this.data.readUInt32LE(a);default:throw new Error("Invalid byteLength: "+b)}},a.prototype.readIntBE=function(a,b,c){switch(void 0===c&&(c=!1),a>>>=0,b>>>=0,c||f(a,b,this.length),a+=this.offset,b){case 1:return this.data.readInt8(a);case 2:return this.data.readInt16BE(a);case 3:return this.data.readUInt8(a+2)|this.data.readInt16BE(a)<<8;case 4:return this.data.readInt32BE(a);case 6:return 131072*(this.data.readInt8(a)<<23)+this.readUIntBE(a-this.offset+1,5,c);case 5:return 512*(this.data.readInt8(a)<<23)+this.data.readUInt32BE(a+1);default:throw new Error("Invalid byteLength: "+b)}},a.prototype.readUInt8=function(a,b){return void 0===b&&(b=!1),a>>>=0,b||f(a,1,this.length),a+=this.offset,this.data.readUInt8(a)},a.prototype.readUInt16LE=function(a,b){return void 0===b&&(b=!1),a>>>=0,b||f(a,2,this.length),a+=this.offset,this.data.readUInt16LE(a)},a.prototype.readUInt16BE=function(a,b){return void 0===b&&(b=!1),a>>>=0,b||f(a,2,this.length),a+=this.offset,this.data.readUInt16BE(a)},a.prototype.readUInt32LE=function(a,b){return void 0===b&&(b=!1),a>>>=0,b||f(a,4,this.length),a+=this.offset,this.data.readUInt32LE(a)},a.prototype.readUInt32BE=function(a,b){return void 0===b&&(b=!1),a>>>=0,b||f(a,4,this.length),a+=this.offset,this.data.readUInt32BE(a)},a.prototype.readInt8=function(a,b){return void 0===b&&(b=!1),a>>>=0,b||f(a,1,this.length),a+=this.offset,this.data.readInt8(a)},a.prototype.readInt16LE=function(a,b){return void 0===b&&(b=!1),a>>>=0,b||f(a,2,this.length),a+=this.offset,this.data.readInt16LE(a)},a.prototype.readInt16BE=function(a,b){return void 0===b&&(b=!1),a>>>=0,b||f(a,2,this.length),a+=this.offset,this.data.readInt16BE(a)},a.prototype.readInt32LE=function(a,b){return void 0===b&&(b=!1),a>>>=0,b||f(a,4,this.length),a+=this.offset,this.data.readInt32LE(a)},a.prototype.readInt32BE=function(a,b){return void 0===b&&(b=!1),a>>>=0,b||f(a,4,this.length),a+=this.offset,this.data.readInt32BE(a)},a.prototype.readFloatLE=function(a,b){return void 0===b&&(b=!1),a>>>=0,b||f(a,4,this.length),a+=this.offset,this.data.readFloatLE(a)},a.prototype.readFloatBE=function(a,b){return void 0===b&&(b=!1),a>>>=0,b||f(a,4,this.length),a+=this.offset,this.data.readFloatBE(a)},a.prototype.readDoubleLE=function(a,b){return void 0===b&&(b=!1),a>>>=0,b||f(a,8,this.length),a+=this.offset,this.data.readDoubleLE(a)},a.prototype.readDoubleBE=function(a,b){return void 0===b&&(b=!1),a>>>=0,b||f(a,8,this.length),a+=this.offset,this.data.readDoubleBE(a)},a.prototype.writeUIntLE=function(a,b,c,e){void 0===e&&(e=!1),b>>>=0,e||d(this,a,b,c,r[c],0);var f=b+c;switch(b+=this.offset,c){case 1:this.data.writeUInt8(b,a);break;case 2:this.data.writeUInt16LE(b,a);break;case 3:this.data.writeUInt8(b,255&a),this.data.writeUInt16LE(b+1,a>>8);break;case 4:this.data.writeUInt32LE(b,a);break;case 6:this.data.writeUInt8(b,255&a),a=Math.floor(a/256),b++;case 5:this.data.writeUInt8(b,255&a),a=Math.floor(a/256),this.data.writeUInt32LE(b+1,a);break;default:throw new Error("Invalid byteLength: "+c)}return f},a.prototype.writeUIntBE=function(a,b,c,e){void 0===e&&(e=!1),b>>>=0,e||d(this,a,b,c,r[c],0);var f=b+c;switch(b+=this.offset,c){case 1:this.data.writeUInt8(b,a);break;case 2:this.data.writeUInt16BE(b,a);break;case 3:this.data.writeUInt8(b+2,255&a),this.data.writeUInt16BE(b,a>>8);break;case 4:this.data.writeUInt32BE(b,a);break;case 6:this.data.writeUInt8(b+5,255&a),a=Math.floor(a/256);case 5:this.data.writeUInt8(b+4,255&a),a=Math.floor(a/256),this.data.writeUInt32BE(b,a);break;default:throw new Error("Invalid byteLength: "+c)}return f},a.prototype.writeIntLE=function(a,b,c,e){void 0===e&&(e=!1),b>>>=0,e||d(this,a,b,c,p[c],q[c]);var f=b+c;switch(b+=this.offset,c){case 1:this.data.writeInt8(b,a);break;case 2:this.data.writeInt16LE(b,a);break;case 3:this.data.writeUInt8(b,255&a),this.data.writeInt16LE(b+1,a>>8);break;case 4:this.data.writeInt32LE(b,a);break;case 6:this.data.writeUInt8(b,255&a),a=Math.floor(a/256),b++;case 5:this.data.writeUInt8(b,255&a),a=Math.floor(a/256),this.data.writeInt32LE(b+1,a);break;default:throw new Error("Invalid byteLength: "+c)}return f},a.prototype.writeIntBE=function(a,b,c,e){void 0===e&&(e=!1),b>>>=0,e||d(this,a,b,c,p[c],q[c]);var f=b+c;switch(b+=this.offset,c){case 1:this.data.writeInt8(b,a);break;case 2:this.data.writeInt16BE(b,a);break;case 3:this.data.writeUInt8(b+2,255&a),this.data.writeInt16BE(b,a>>8);break;case 4:this.data.writeInt32BE(b,a);break;case 6:this.data.writeUInt8(b+5,255&a),a=Math.floor(a/256);case 5:this.data.writeUInt8(b+4,255&a),a=Math.floor(a/256),this.data.writeInt32BE(b,a);break;default:throw new Error("Invalid byteLength: "+c)}return f},a.prototype.writeUInt8=function(a,b,c){return void 0===c&&(c=!1),b>>>=0,c||d(this,a,b,1,255,0),this.data.writeUInt8(b+this.offset,a),b+1},a.prototype.writeUInt16LE=function(a,b,c){return void 0===c&&(c=!1),b>>>=0,c||d(this,a,b,2,65535,0),this.data.writeUInt16LE(b+this.offset,a),b+2},a.prototype.writeUInt16BE=function(a,b,c){return void 0===c&&(c=!1),b>>>=0,c||d(this,a,b,2,65535,0),this.data.writeUInt16BE(b+this.offset,a),b+2},a.prototype.writeUInt32LE=function(a,b,c){return void 0===c&&(c=!1),b>>>=0,c||d(this,a,b,4,4294967295,0),this.data.writeUInt32LE(b+this.offset,a),b+4},a.prototype.writeUInt32BE=function(a,b,c){return void 0===c&&(c=!1),b>>>=0,c||d(this,a,b,4,4294967295,0),this.data.writeUInt32BE(b+this.offset,a),b+4},a.prototype.writeInt8=function(a,b,c){return void 0===c&&(c=!1),b>>>=0,c||d(this,a,b,1,127,-128),this.data.writeInt8(b+this.offset,a),b+1},a.prototype.writeInt16LE=function(a,b,c){return void 0===c&&(c=!1),b>>>=0,c||d(this,a,b,2,32767,-32768),this.data.writeInt16LE(b+this.offset,a),b+2},a.prototype.writeInt16BE=function(a,b,c){return void 0===c&&(c=!1),b>>>=0,c||d(this,a,b,2,32767,-32768),this.data.writeInt16BE(b+this.offset,a),b+2},a.prototype.writeInt32LE=function(a,b,c){return void 0===c&&(c=!1),b>>>=0,c||d(this,a,b,4,2147483647,-2147483648),this.data.writeInt32LE(b+this.offset,a),b+4},a.prototype.writeInt32BE=function(a,b,c){return void 0===c&&(c=!1),b>>>=0,c||d(this,a,b,4,2147483647,-2147483648),this.data.writeInt32BE(b+this.offset,a),b+4},a.prototype.writeFloatLE=function(a,b,c){return void 0===c&&(c=!1),b>>>=0,c||e(this,a,b,4),this.data.writeFloatLE(b+this.offset,a),b+4},a.prototype.writeFloatBE=function(a,b,c){return void 0===c&&(c=!1),b>>>=0,c||e(this,a,b,4),this.data.writeFloatBE(b+this.offset,a),b+4},a.prototype.writeDoubleLE=function(a,b,c){return void 0===c&&(c=!1),b>>>=0,c||e(this,a,b,8),this.data.writeDoubleLE(b+this.offset,a),b+8},a.prototype.writeDoubleBE=function(a,b,c){return void 0===c&&(c=!1),b>>>=0,c||e(this,a,b,8),this.data.writeDoubleBE(b+this.offset,a),b+8},a.isEncoding=function(a){try{l.FindUtil(a)}catch(b){return!1}return!0},a.compare=function(a,b){if(a===b)return 0;var c,d,e,f=a.length,g=b.length,h=Math.min(f,g);for(c=0;h>c;c++)if(d=a.readUInt8(c),e=b.readUInt8(c),d!==e)return d>e?1:-1;return f===g?0:f>g?1:-1},a.isBuffer=function(b){return b instanceof a},a.byteLength=function(a,b){void 0===b&&(b="utf8");var c;try{c=l.FindUtil(b)}catch(d){c=l.FindUtil("utf8")}return"string"!=typeof a&&(a=""+a),c.byteLength(a)},a.concat=function(b,c){var d;if(0===b.length||0===c)return new a(0);if(void 0===c){c=0;for(var e=0;e>>24)},a.prototype.writeInt16LE=function(a,b){this.writeUInt8(a,255&b),this.writeUInt8(a+1,b>>>8&255|(2147483648&b)>>>24)},a.prototype.writeInt16BE=function(a,b){this.writeUInt8(a+1,255&b),this.writeUInt8(a,b>>>8&255|(2147483648&b)>>>24)},a.prototype.writeInt32LE=function(a,b){this.writeUInt8(a,255&b),this.writeUInt8(a+1,b>>>8&255),this.writeUInt8(a+2,b>>>16&255),this.writeUInt8(a+3,b>>>24&255)},a.prototype.writeInt32BE=function(a,b){this.writeUInt8(a+3,255&b),this.writeUInt8(a+2,b>>>8&255),this.writeUInt8(a+1,b>>>16&255),this.writeUInt8(a,b>>>24&255)},a.prototype.writeUInt8=function(a,b){throw new Error("BufferCore implementations should implement writeUInt8.")},a.prototype.writeUInt16LE=function(a,b){this.writeUInt8(a,255&b),this.writeUInt8(a+1,b>>8&255)},a.prototype.writeUInt16BE=function(a,b){this.writeUInt8(a+1,255&b),this.writeUInt8(a,b>>8&255)},a.prototype.writeUInt32LE=function(a,b){this.writeInt32LE(a,0|b)},a.prototype.writeUInt32BE=function(a,b){this.writeInt32BE(a,0|b)},a.prototype.writeFloatLE=function(a,b){this.writeInt32LE(a,this.float2intbits(b))},a.prototype.writeFloatBE=function(a,b){this.writeInt32BE(a,this.float2intbits(b))},a.prototype.writeDoubleLE=function(a,b){var c=this.double2longbits(b);this.writeInt32LE(a,c[0]),this.writeInt32LE(a+4,c[1])},a.prototype.writeDoubleBE=function(a,b){var c=this.double2longbits(b);this.writeInt32BE(a+4,c[0]),this.writeInt32BE(a,c[1])},a.prototype.readInt8=function(a){var b=this.readUInt8(a);return 128&b?4294967168|b:b},a.prototype.readInt16LE=function(a){var b=this.readUInt16LE(a);return 32768&b?4294934528|b:b},a.prototype.readInt16BE=function(a){var b=this.readUInt16BE(a);return 32768&b?4294934528|b:b},a.prototype.readInt32LE=function(a){return 0|this.readUInt32LE(a)},a.prototype.readInt32BE=function(a){return 0|this.readUInt32BE(a)},a.prototype.readUInt8=function(a){throw new Error("BufferCore implementations should implement readUInt8.")},a.prototype.readUInt16LE=function(a){return this.readUInt8(a+1)<<8|this.readUInt8(a); +},a.prototype.readUInt16BE=function(a){return this.readUInt8(a)<<8|this.readUInt8(a+1)},a.prototype.readUInt32LE=function(a){return(this.readUInt8(a+3)<<24|this.readUInt8(a+2)<<16|this.readUInt8(a+1)<<8|this.readUInt8(a))>>>0},a.prototype.readUInt32BE=function(a){return(this.readUInt8(a)<<24|this.readUInt8(a+1)<<16|this.readUInt8(a+2)<<8|this.readUInt8(a+3))>>>0},a.prototype.readFloatLE=function(a){return this.intbits2float(this.readInt32LE(a))},a.prototype.readFloatBE=function(a){return this.intbits2float(this.readInt32BE(a))},a.prototype.readDoubleLE=function(a){return this.longbits2double(this.readInt32LE(a+4),this.readInt32LE(a))},a.prototype.readDoubleBE=function(a){return this.longbits2double(this.readInt32BE(a),this.readInt32BE(a+4))},a.prototype.copy=function(a,b){throw new Error("BufferCore implementations should implement copy.")},a.prototype.fill=function(a,b,c){for(var d=b;c>d;d++)this.writeUInt8(d,a)},a.prototype.float2intbits=function(a){var b,c,d;return 0===a?0:a===Number.POSITIVE_INFINITY?f:a===Number.NEGATIVE_INFINITY?g:isNaN(a)?h:(d=0>a?1:0,a=Math.abs(a),1.1754942106924411e-38>=a&&a>=1.401298464324817e-45?(b=0,c=Math.round(a/Math.pow(2,-126)*Math.pow(2,23)),d<<31|b<<23|c):(b=Math.floor(Math.log(a)/Math.LN2),c=Math.round((a/Math.pow(2,b)-1)*Math.pow(2,23)),d<<31|b+127<<23|c))},a.prototype.double2longbits=function(a){var b,c,d,e;return 0===a?[0,0]:a===Number.POSITIVE_INFINITY?[0,2146435072]:a===Number.NEGATIVE_INFINITY?[0,-1048576]:isNaN(a)?[0,2146959360]:(e=0>a?1<<31:0,a=Math.abs(a),2.225073858507201e-308>=a&&a>=5e-324?(b=0,d=a/Math.pow(2,-1022)*Math.pow(2,52)):(b=Math.floor(Math.log(a)/Math.LN2),a>>31,h=(2139095040&a)>>>23,i=8388607&a;return b=0===h?Math.pow(-1,c)*i*Math.pow(2,-149):Math.pow(-1,c)*(1+i*Math.pow(2,-23))*Math.pow(2,h-127),(e>b||b>d)&&(b=NaN),b},a.prototype.longbits2double=function(a,b){var c=(2147483648&a)>>>31,d=(2146435072&a)>>>20,e=(1048575&a)*Math.pow(2,32)+b;return 0===d&&0===e?0:2047===d?0===e?1===c?Number.NEGATIVE_INFINITY:Number.POSITIVE_INFINITY:NaN:0===d?Math.pow(-1,c)*e*Math.pow(2,-1074):Math.pow(-1,c)*(1+e*Math.pow(2,-52))*Math.pow(2,d-1023)},a}();c.BufferCoreCommon=i},{}],4:[function(a,b,c){var d=this&&this.__extends||function(a,b){function c(){this.constructor=a}for(var d in b)b.hasOwnProperty(d)&&(a[d]=b[d]);a.prototype=null===b?Object.create(b):(c.prototype=b.prototype,new 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ca:if(i>=6&&j>=258){a.next_out=h,a.avail_out=j,a.next_in=g,a.avail_in=i,c.hold=m,c.bits=n,u(a,p),h=a.next_out,f=a.output,j=a.avail_out,g=a.next_in,e=a.input,i=a.avail_in,m=c.hold,n=c.bits,c.mode===V&&(c.back=-1);break}for(c.back=0;Aa=c.lencode[m&(1<>>24,ra=Aa>>>16&255,sa=65535&Aa,!(n>=qa);){if(0===i)break a;i--,m+=e[g++]<>ta)],qa=Aa>>>24,ra=Aa>>>16&255,sa=65535&Aa,!(n>=ta+qa);){if(0===i)break a;i--,m+=e[g++]<>>=ta,n-=ta,c.back+=ta}if(m>>>=qa,n-=qa,c.back+=qa,c.length=sa,0===ra){c.mode=ha;break}if(32&ra){c.back=-1,c.mode=V;break}if(64&ra){a.msg="invalid literal/length code",c.mode=la;break}c.extra=15&ra,c.mode=da;case da:if(c.extra){for(za=c.extra;za>n;){if(0===i)break a;i--,m+=e[g++]<>>=c.extra,n-=c.extra,c.back+=c.extra}c.was=c.length,c.mode=ea;case ea:for(;Aa=c.distcode[m&(1<>>24,ra=Aa>>>16&255,sa=65535&Aa,!(n>=qa);){if(0===i)break a;i--,m+=e[g++]<>ta)],qa=Aa>>>24,ra=Aa>>>16&255,sa=65535&Aa,!(n>=ta+qa);){if(0===i)break a;i--,m+=e[g++]<>>=ta,n-=ta,c.back+=ta}if(m>>>=qa,n-=qa,c.back+=qa,64&ra){a.msg="invalid distance code",c.mode=la;break}c.offset=sa,c.extra=15&ra,c.mode=fa;case fa:if(c.extra){for(za=c.extra;za>n;){if(0===i)break a;i--,m+=e[g++]<>>=c.extra,n-=c.extra,c.back+=c.extra}if(c.offset>c.dmax){a.msg="invalid distance too far back",c.mode=la;break}c.mode=ga;case ga:if(0===j)break a;if(q=p-j,c.offset>q){if(q=c.offset-q,q>c.whave&&c.sane){a.msg="invalid distance too far back",c.mode=la;break}q>c.wnext?(q-=c.wnext,oa=c.wsize-q):oa=c.wnext-q,q>c.length&&(q=c.length),pa=c.window}else pa=f,oa=h-c.offset,q=c.length;q>j&&(q=j),j-=q,c.length-=q;do f[h++]=pa[oa++];while(--q);0===c.length&&(c.mode=ca);break;case ha:if(0===j)break a;f[h++]=c.length,j--,c.mode=ca;break;case ia:if(c.wrap){for(;32>n;){if(0===i)break a;i--,m|=e[g++]<n;){if(0===i)break a;i--,m+=e[g++]<=D;D++)P[D]=0;for(E=0;o>E;E++)P[b[c+E]]++;for(H=C,G=e;G>=1&&0===P[G];G--);if(H>G&&(H=G),0===G)return 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f=2;if(e&&3>++c)switch(e.status){case Dropbox.ApiError.SERVER_ERROR:case Dropbox.ApiError.NETWORK_ERROR:case Dropbox.ApiError.RATE_LIMITED:setTimeout(function(){a(d)},1e3*f);break;default:b.apply(null,arguments)}else b.apply(null,arguments)};a(d)},a}(),r=function(a){function b(b,c,d,e,f){a.call(this,b,c,d,e,f)}return h(b,a),b.prototype.sync=function(a){var b=this;if(this.isDirty()){var c=this.getBuffer(),d=o.buffer2ArrayBuffer(c);this._fs._writeFileStrict(this.getPath(),d,function(c){c||b.resetDirty(),a(c)})}else a()},b.prototype.close=function(a){this.sync(a)},b}(i.PreloadFile);c.DropboxFile=r;var s=function(a){function c(b){a.call(this),this._client=new q(b),d()}return h(c,a),c.prototype.getName=function(){return"Dropbox"},c.isAvailable=function(){return"undefined"!=typeof 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c(null,f)}c(l.ApiError.FileError(l.ErrorCode.ENOENT,a))}})},c.prototype.open=function(a,c,d,e){var f=this;this._client.readFile(a,function(d,g,h){if(!d){var i;i=null===g?new b(0):o.arrayBuffer2Buffer(g);var j=f._makeFile(a,c,h,i);return e(null,j)}if(c.isReadable())e(f.convert(d,a));else switch(d.status){case Dropbox.ApiError.NOT_FOUND:var k=new ArrayBuffer(0);return f._writeFileStrict(a,k,function(b,d){if(b)e(b);else{var g=f._makeFile(a,c,d,o.arrayBuffer2Buffer(k));e(null,g)}});default:return e(f.convert(d,a))}})},c.prototype._writeFileStrict=function(a,b,c){var d=this,e=n.dirname(a);this.stat(e,!1,function(f,g){f?c(l.ApiError.FileError(l.ErrorCode.ENOENT,e)):d._client.writeFile(a,b,function(b,e){b?c(d.convert(b,a)):c(null,e)})})},c.prototype._statType=function(a){return a.isFile?k.FileType.FILE:k.FileType.DIRECTORY},c.prototype._makeFile=function(a,b,c,d){var e=this._statType(c),f=new k["default"](e,c.size);return new r(this,a,b,f,d)},c.prototype._remove=function(a,b,c){var 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l.ApiError(c):l.ApiError.FileError(c,b)},c}(j.BaseFileSystem);c.__esModule=!0,c["default"]=s}).call(this,a("bfs-buffer").Buffer)},{"../core/api_error":49,"../core/file_system":54,"../core/node_fs_stats":57,"../core/util":58,"../generic/preload_file":63,async:1,"bfs-buffer":2,path:10}],37:[function(a,b,c){function d(a,b){if(null!==b&&"object"==typeof b){var c=b,d=c.path;d&&(d="/"+i.relative(a,d),c.message=c.message.replace(c.path,d),c.path=d)}return b}function e(a,b){return"function"==typeof b?function(c){arguments.length>0&&(arguments[0]=d(a,c)),b.apply(null,arguments)}:b}function f(a,b,c){return"Sync"!==a.slice(a.length-4)?function(){return arguments.length>0&&(b&&(arguments[0]=i.join(this._folder,arguments[0])),c&&(arguments[1]=i.join(this._folder,arguments[1])),arguments[arguments.length-1]=e(this._folder,arguments[arguments.length-1])),this._wrapped[a].apply(this._wrapped,arguments)}:function(){try{return 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h=e._makeFile(a,b,c,g.result);d(null,h)},g.onerror=function(a){f(g.error)},g.readAsArrayBuffer(c)},f)},f)},b.prototype._statType=function(a){return a.isFile?l.FileType.FILE:l.FileType.DIRECTORY},b.prototype._makeFile=function(a,b,c,d){void 0===d&&(d=new ArrayBuffer(0));var e=new l["default"](l.FileType.FILE,c.size),f=p.arrayBuffer2Buffer(d);return new r(this,a,b,e,f)},b.prototype._remove=function(a,b,c){var d=this,e=function(e){var f=function(){b()},g=function(e){b(d.convert(e,a,!c))};e.remove(f,g)},f=function(e){b(d.convert(e,a,!c))},g={create:!1};c?this.fs.root.getFile(a,g,e,f):this.fs.root.getDirectory(a,g,e,f)},b.prototype.unlink=function(a,b){this._remove(a,b,!0)},b.prototype.rmdir=function(a,b){var c=this;this.readdir(a,function(d,e){d?b(d):e.length>0?b(j.ApiError.ENOTEMPTY(a)):c._remove(a,b,!1)})},b.prototype.mkdir=function(a,b,c){var d=this,e={create:!0,exclusive:!0},f=function(a){c()},g=function(b){c(d.convert(b,a,!0))};this.fs.root.getDirectory(a,e,f,g)},b.prototype._readdir=function(a,b){var c=this,d=function(d){b(c.convert(d,a,!0))};this.fs.root.getDirectory(a,{create:!1},function(a){var c=a.createReader(),e=[],g=function(){c.readEntries(function(a){a.length?(e=e.concat(f(a)),g()):b(null,e)},d)};g()},d)},b.prototype.readdir=function(a,b){this._readdir(a,function(a,c){if(a)return b(a);for(var d=[],e=0;e0&&a[0]instanceof h.ApiError&&d.standardizeError(a[0],f.path,e),g.apply(null,a)}}return f.fs[a].apply(f.fs,b)}}var e=this&&this.__extends||function(a,b){function c(){this.constructor=a}for(var d in b)b.hasOwnProperty(d)&&(a[d]=b[d]);a.prototype=null===b?Object.create(b):(c.prototype=b.prototype,new c)},f=a("../core/file_system"),g=a("./InMemory"),h=a("../core/api_error"),i=a("../core/node_fs"),j=a("path"),k=a("../core/util"),l=function(a){function b(){a.call(this),this.mountList=[],this.mntMap={},this.rootFs=new 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a=a.substr(e.length>1?e.length:0),""===a&&(a="/"),{fs:this.mntMap[e],path:a}}return{fs:this.rootFs,path:a}},b.prototype.getName=function(){return"MountableFileSystem"},b.isAvailable=function(){return!0},b.prototype.diskSpace=function(a,b){b(0,0)},b.prototype.isReadOnly=function(){return!1},b.prototype.supportsLinks=function(){return!1},b.prototype.supportsProps=function(){return!1},b.prototype.supportsSynch=function(){return!0},b.prototype.standardizeError=function(a,b,c){var d;return-1!==(d=a.message.indexOf(b))&&(a.message=a.message.substr(0,d)+c+a.message.substr(d+b.length),a.path=c),a},b.prototype.rename=function(a,b,c){var d=this._getFs(a),e=this._getFs(b);if(d.fs===e.fs){var f=this;return d.fs.rename(d.path,e.path,function(g){g&&f.standardizeError(f.standardizeError(g,d.path,a),e.path,b),c(g)})}return i.readFile(a,function(d,e){return d?c(d):void i.writeFile(b,e,function(b){return b?c(b):void i.unlink(a,c)})})},b.prototype.renameSync=function(a,b){var c=this._getFs(a),d=this._getFs(b);if(c.fs===d.fs)try{return c.fs.renameSync(c.path,d.path)}catch(e){throw this.standardizeError(this.standardizeError(e,c.path,a),d.path,b),e}var f=i.readFileSync(a);return i.writeFileSync(b,f),i.unlinkSync(a)},b.prototype.readdirSync=function(a){var b=this._getFs(a),c=null;if(b.fs!==this.rootFs)try{c=this.rootFs.readdirSync(a)}catch(d){}try{var e=b.fs.readdirSync(b.path);return null===c?e:e.concat(c.filter(function(a){return-1===e.indexOf(a)}))}catch(d){if(null===c)throw this.standardizeError(d,b.path,a);return c}},b.prototype.readdir=function(a,b){var c=this,d=this._getFs(a);d.fs.readdir(d.path,function(e,f){if(d.fs!==c.rootFs)try{var g=c.rootFs.readdirSync(a);f=f?f.concat(g.filter(function(a){return-1===f.indexOf(a)})):g}catch(h){if(e)return b(c.standardizeError(e,d.path,a))}else if(e)return b(c.standardizeError(e,d.path,a));b(null,f)})},b.prototype.rmdirSync=function(a){var b=this._getFs(a);if(this._containsMountPt(a))throw h.ApiError.ENOTEMPTY(a);try{b.fs.rmdirSync(b.path)}catch(c){throw this.standardizeError(c,b.path,a)}},b.prototype._containsMountPt=function(a){for(var b=this.mountList,c=b.length,d=0;c>d;d++){var e=b[d];if(e.length>=a.length&&e.slice(0,a.length)===a)return!0}return!1},b.prototype.rmdir=function(a,b){var c=this,d=this._getFs(a);this._containsMountPt(a)?b(h.ApiError.ENOTEMPTY(a)):d.fs.rmdir(d.path,function(e){b(e?c.standardizeError(e,d.path,a):null)})},b}(f.BaseFileSystem);c.__esModule=!0,c["default"]=l;for(var m=[["exists","unlink","readlink"],["stat","mkdir","realpath","truncate"],["open","readFile","chmod","utimes"],["chown"],["writeFile","appendFile"]],n=0;n0)throw g.ApiError.ENOTEMPTY(b)}this._writable.existsSync(a)?this._writable.renameSync(a,b):this._writable.existsSync(b)||this._writable.mkdirSync(b,e),this._readable.existsSync(a)&&this._readable.readdirSync(a).forEach(function(d){c.renameSync(j.resolve(a,d),j.resolve(b,d))})}else{if(this.existsSync(b)&&this.statSync(b,!1).isDirectory())throw g.ApiError.EISDIR(b);this.writeFileSync(b,this.readFileSync(a,null,h.FileFlag.getFileFlag("r")),null,h.FileFlag.getFileFlag("w"),d.mode)}a!==b&&this.existsSync(a)&&this.unlinkSync(a)},c.prototype.statSync=function(a,b){this.checkInitialized();try{return this._writable.statSync(a,b)}catch(c){if(this._deletedFiles[a])throw g.ApiError.ENOENT(a);var e=this._readable.statSync(a,b).clone();return e.mode=d(e.mode),e}},c.prototype.openSync=function(a,b,c){if(this.checkInitialized(),this.existsSync(a))switch(b.pathExistsAction()){case h.ActionType.TRUNCATE_FILE:return this.createParentDirectories(a),this._writable.openSync(a,b,c);case h.ActionType.NOP:if(this._writable.existsSync(a))return this._writable.openSync(a,b,c);var d=this._readable.statSync(a,!1).clone();return d.mode=c,new l(this,a,b,d,this._readable.readFileSync(a,null,h.FileFlag.getFileFlag("r")));default:throw g.ApiError.EEXIST(a)}else switch(b.pathNotExistsAction()){case h.ActionType.CREATE_FILE:return this.createParentDirectories(a),this._writable.openSync(a,b,c);default:throw g.ApiError.ENOENT(a)}},c.prototype.unlinkSync=function(a){if(this.checkInitialized(),!this.existsSync(a))throw g.ApiError.ENOENT(a);this._writable.existsSync(a)&&this._writable.unlinkSync(a),this.existsSync(a)&&this.deletePath(a)},c.prototype.rmdirSync=function(a){if(this.checkInitialized(),!this.existsSync(a))throw g.ApiError.ENOENT(a);if(this._writable.existsSync(a)&&this._writable.rmdirSync(a),this.existsSync(a)){if(this.readdirSync(a).length>0)throw g.ApiError.ENOTEMPTY(a);this.deletePath(a)}},c.prototype.mkdirSync=function(a,b){if(this.checkInitialized(),this.existsSync(a))throw g.ApiError.EEXIST(a);this.createParentDirectories(a),this._writable.mkdirSync(a,b)},c.prototype.readdirSync=function(a){var b=this;this.checkInitialized();var c=this.statSync(a,!1);if(!c.isDirectory())throw g.ApiError.ENOTDIR(a);var d=[];try{d=d.concat(this._writable.readdirSync(a))}catch(e){}try{d=d.concat(this._readable.readdirSync(a))}catch(e){}var f={};return d.filter(function(c){var d=void 0===f[c]&&b._deletedFiles[a+"/"+c]!==!0;return f[c]=!0,d})},c.prototype.existsSync=function(a){return this.checkInitialized(),this._writable.existsSync(a)||this._readable.existsSync(a)&&this._deletedFiles[a]!==!0},c.prototype.chmodSync=function(a,b,c){var d=this;this.checkInitialized(),this.operateOnWritable(a,function(){d._writable.chmodSync(a,b,c)})},c.prototype.chownSync=function(a,b,c,d){var e=this;this.checkInitialized(),this.operateOnWritable(a,function(){e._writable.chownSync(a,b,c,d)})},c.prototype.utimesSync=function(a,b,c){var d=this;this.checkInitialized(),this.operateOnWritable(a,function(){d._writable.utimesSync(a,b,c)})},c.prototype.operateOnWritable=function(a,b){if(!this.existsSync(a))throw g.ApiError.ENOENT(a);this._writable.existsSync(a)||this.copyToWritable(a),b()},c.prototype.copyToWritable=function(a){var b=this.statSync(a,!1);b.isDirectory()?this._writable.mkdirSync(a,b.mode):this.writeFileSync(a,this._readable.readFileSync(a,null,h.FileFlag.getFileFlag("r")),null,h.FileFlag.getFileFlag("w"),this.statSync(a,!1).mode)},c}(f.SynchronousFileSystem);c.__esModule=!0,c["default"]=m}).call(this,a("bfs-buffer").Buffer)},{"../core/api_error":49,"../core/file_flag":53,"../core/file_system":54,"../generic/preload_file":63,"bfs-buffer":2,path:10}],44:[function(a,b,c){(function(b){function d(a){return{type:r.API_ERROR,errorData:l(a.writeToBuffer())}}function 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b)b.hasOwnProperty(d)&&(a[d]=b[d]);a.prototype=null===b?Object.create(b):(c.prototype=b.prototype,new c)},t=a("../core/file_system"),u=a("../core/api_error"),v=a("../core/file_flag"),w=a("../core/util"),x=a("../core/file"),y=a("../core/node_fs_stats"),z=a("../generic/preload_file"),A=a("../core/global"),B=a("../core/node_fs");!function(a){a[a.CB=0]="CB",a[a.FD=1]="FD",a[a.API_ERROR=2]="API_ERROR",a[a.STATS=3]="STATS",a[a.PROBE=4]="PROBE",a[a.FILEFLAG=5]="FILEFLAG",a[a.BUFFER=6]="BUFFER",a[a.ERROR=7]="ERROR"}(r||(r={}));var C=function(){function a(){this._callbacks={},this._nextId=0}return a.prototype.toRemoteArg=function(a){var b=this._nextId++;return this._callbacks[b]=a,{type:r.CB,id:b}},a.prototype.toLocalArg=function(a){var b=this._callbacks[a];return delete this._callbacks[a],b},a}(),D=function(){function a(){this._fileDescriptors={},this._nextId=0}return a.prototype.toRemoteArg=function(a,c,d,e){var f,g,h=this._nextId++;this._fileDescriptors[h]=a,a.stat(function(i,j){i?e(i):(g=l(j.toBuffer()),d.isReadable()?a.read(new b(j.size),0,j.size,0,function(a,b,i){a?e(a):(f=l(i),e(null,{type:r.FD,id:h,data:f,stat:g,path:c,flag:d.getFlagString()}))}):e(null,{type:r.FD,id:h,data:new ArrayBuffer(0),stat:g,path:c,flag:d.getFlagString()}))})},a.prototype._applyFdChanges=function(a,b){var c=this._fileDescriptors[a.id],d=m(a.data),e=y["default"].fromBuffer(m(a.stat)),f=v.FileFlag.getFileFlag(a.flag);f.isWriteable()?c.write(d,0,d.length,f.isAppendable()?c.getPos():0,function(a){function g(){c.stat(function(a,d){a?b(a):d.mode!==e.mode?c.chmod(e.mode,function(a){b(a,c)}):b(a,c)})}a?b(a):f.isAppendable()?g():c.truncate(d.length,function(){g()})}):b(null,c)},a.prototype.applyFdAPIRequest=function(a,b){var c=this,d=a.args[0];this._applyFdChanges(d,function(e,f){e?b(e):f[a.method](function(e){"close"===a.method&&delete c._fileDescriptors[d.id],b(e)})})},a}(),E=function(a){function 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e,g,h=new Array(arguments.length),i=arguments.length;for(e=0;e0&&"/"!==c.charAt(c.length-1)&&(c+="/"),this.prefixUrl=c;var d=null;if("string"==typeof b){if(d=this._requestFileSync(b,"json"),!d)throw new Error("Unable to find listing at URL: ${listingUrlOrObj}")}else d=b;this._index=l.FileIndex.fromListing(d)}return e(b,a),b.prototype.empty=function(){this._index.fileIterator(function(a){a.file_data=null})},b.prototype.getXhrPath=function(a){return"/"===a.charAt(0)&&(a=a.slice(1)),this.prefixUrl+a},b.prototype._requestFileSizeAsync=function(a,b){k.getFileSizeAsync(this.getXhrPath(a),b)},b.prototype._requestFileSizeSync=function(a){return k.getFileSizeSync(this.getXhrPath(a))},b.prototype._requestFileAsync=function(a,b,c){k.asyncDownloadFile(this.getXhrPath(a),b,c)},b.prototype._requestFileSync=function(a,b){return k.syncDownloadFile(this.getXhrPath(a),b)},b.prototype.getName=function(){return"XmlHttpRequest"},b.isAvailable=function(){return"undefined"!=typeof XMLHttpRequest&&null!==XMLHttpRequest},b.prototype.diskSpace=function(a,b){b(0,0)},b.prototype.isReadOnly=function(){return!0},b.prototype.supportsLinks=function(){return!1},b.prototype.supportsProps=function(){return!1},b.prototype.supportsSynch=function(){return!0},b.prototype.preloadFile=function(a,b){var c=this._index.getInode(a);if(!l.isFileInode(c))throw g.ApiError.EISDIR(a);if(null===c)throw g.ApiError.ENOENT(a);var d=c.getData();d.size=b.length,d.file_data=b},b.prototype.stat=function(a,b,c){var d=this._index.getInode(a);if(null===d)return c(g.ApiError.ENOENT(a));var e;l.isFileInode(d)?(e=d.getData(),e.size<0?this._requestFileSizeAsync(a,function(a,b){return a?c(a):(e.size=b,void c(null,e.clone()))}):c(null,e.clone())):l.isDirInode(d)?(e=d.getStats(),c(null,e)):c(g.ApiError.FileError(g.ErrorCode.EINVAL,a))},b.prototype.statSync=function(a,b){var c=this._index.getInode(a);if(null===c)throw g.ApiError.ENOENT(a);var d;if(l.isFileInode(c))d=c.getData(),d.size<0&&(d.size=this._requestFileSizeSync(a));else{if(!l.isDirInode(c))throw g.ApiError.FileError(g.ErrorCode.EINVAL,a);d=c.getStats()}return d},b.prototype.open=function(a,b,c,d){if(b.isWriteable())return d(new g.ApiError(g.ErrorCode.EPERM,a));var e=this,f=this._index.getInode(a);if(null===f)return d(g.ApiError.ENOENT(a));if(!l.isFileInode(f))return d(g.ApiError.EISDIR(a));var i=f.getData();switch(b.pathExistsAction()){case h.ActionType.THROW_EXCEPTION:case h.ActionType.TRUNCATE_FILE:return d(g.ApiError.EEXIST(a));case h.ActionType.NOP:if(null!=i.file_data)return d(null,new j.NoSyncFile(e,a,b,i.clone(),i.file_data));this._requestFileAsync(a,"buffer",function(c,f){return c?d(c):(i.size=f.length,i.file_data=f,d(null,new j.NoSyncFile(e,a,b,i.clone(),f)))});break;default:return d(new g.ApiError(g.ErrorCode.EINVAL,"Invalid FileMode object."))}},b.prototype.openSync=function(a,b,c){if(b.isWriteable())throw new g.ApiError(g.ErrorCode.EPERM,a);var d=this._index.getInode(a);if(null===d)throw g.ApiError.ENOENT(a);if(!l.isFileInode(d))throw g.ApiError.EISDIR(a);var e=d.getData();switch(b.pathExistsAction()){case h.ActionType.THROW_EXCEPTION:case h.ActionType.TRUNCATE_FILE:throw g.ApiError.EEXIST(a);case h.ActionType.NOP:if(null!=e.file_data)return new j.NoSyncFile(this,a,b,e.clone(),e.file_data);var f=this._requestFileSync(a,"buffer");return e.size=f.length,e.file_data=f,new j.NoSyncFile(this,a,b,e.clone(),f);default:throw new g.ApiError(g.ErrorCode.EINVAL,"Invalid FileMode object.")}},b.prototype.readdir=function(a,b){try{b(null,this.readdirSync(a))}catch(c){b(c)}},b.prototype.readdirSync=function(a){var b=this._index.getInode(a);if(null===b)throw g.ApiError.ENOENT(a);if(l.isDirInode(b))return b.getListing();throw g.ApiError.ENOTDIR(a)},b.prototype.readFile=function(a,b,c,e){var f=e;this.open(a,c,420,function(a,c){if(a)return e(a);e=function(a,b){c.close(function(c){return null==a&&(a=c),f(a,b)})};var g=c,h=g.getBuffer();null===b?e(a,i.copyingSlice(h)):d(h,b,e)})},b.prototype.readFileSync=function(a,b,c){var d=this.openSync(a,c,420);try{var e=d,f=e.getBuffer();return null===b?i.copyingSlice(f):f.toString(b)}finally{d.closeSync()}},b}(f.BaseFileSystem);c.__esModule=!0,c["default"]=m},{"../core/api_error":49,"../core/file_flag":53,"../core/file_system":54,"../core/util":58,"../generic/file_index":60,"../generic/preload_file":63,"../generic/xhr":64}],46:[function(a,b,c){function d(a,b){var c=31&b,d=(b>>5&15)-1,e=(b>>9)+1980,f=31&a,g=a>>5&63,h=a>>11;return new Date(e,d,c,h,g,f)}function e(a,b,c,d){return 0===d?"":b?a.toString("utf8",c,c+d):m["default"].byte2str(a.slice(c,c+d))}var f=this&&this.__extends||function(a,b){function c(){this.constructor=a}for(var d in b)b.hasOwnProperty(d)&&(a[d]=b[d]);a.prototype=null===b?Object.create(b):(c.prototype=b.prototype,new c)},g=a("../core/api_error"),h=a("../core/node_fs_stats"),i=a("../core/file_system"),j=a("../core/file_flag"),k=a("../generic/preload_file"),l=a("../core/util"),m=a("bfs-buffer/js/extended_ascii"),n=a("pako/dist/pako_inflate.min").inflateRaw,o=a("../generic/file_index");!function(a){a[a.MSDOS=0]="MSDOS",a[a.AMIGA=1]="AMIGA",a[a.OPENVMS=2]="OPENVMS",a[a.UNIX=3]="UNIX",a[a.VM_CMS=4]="VM_CMS",a[a.ATARI_ST=5]="ATARI_ST",a[a.OS2_HPFS=6]="OS2_HPFS",a[a.MAC=7]="MAC",a[a.Z_SYSTEM=8]="Z_SYSTEM",a[a.CP_M=9]="CP_M",a[a.NTFS=10]="NTFS",a[a.MVS=11]="MVS",a[a.VSE=12]="VSE",a[a.ACORN_RISC=13]="ACORN_RISC",a[a.VFAT=14]="VFAT",a[a.ALT_MVS=15]="ALT_MVS",a[a.BEOS=16]="BEOS",a[a.TANDEM=17]="TANDEM",a[a.OS_400=18]="OS_400",a[a.OSX=19]="OSX"; +}(c.ExternalFileAttributeType||(c.ExternalFileAttributeType={}));c.ExternalFileAttributeType;!function(a){a[a.STORED=0]="STORED",a[a.SHRUNK=1]="SHRUNK",a[a.REDUCED_1=2]="REDUCED_1",a[a.REDUCED_2=3]="REDUCED_2",a[a.REDUCED_3=4]="REDUCED_3",a[a.REDUCED_4=5]="REDUCED_4",a[a.IMPLODE=6]="IMPLODE",a[a.DEFLATE=8]="DEFLATE",a[a.DEFLATE64=9]="DEFLATE64",a[a.TERSE_OLD=10]="TERSE_OLD",a[a.BZIP2=12]="BZIP2",a[a.LZMA=14]="LZMA",a[a.TERSE_NEW=18]="TERSE_NEW",a[a.LZ77=19]="LZ77",a[a.WAVPACK=97]="WAVPACK",a[a.PPMD=98]="PPMD"}(c.CompressionMethod||(c.CompressionMethod={}));var p=c.CompressionMethod,q=function(){function a(a){if(this.data=a,67324752!==a.readUInt32LE(0))throw new g.ApiError(g.ErrorCode.EINVAL,"Invalid Zip file: Local file header has invalid signature: "+this.data.readUInt32LE(0))}return a.prototype.versionNeeded=function(){return this.data.readUInt16LE(4)},a.prototype.flags=function(){return this.data.readUInt16LE(6)},a.prototype.compressionMethod=function(){return this.data.readUInt16LE(8)},a.prototype.lastModFileTime=function(){return d(this.data.readUInt16LE(10),this.data.readUInt16LE(12))},a.prototype.rawLastModFileTime=function(){return this.data.readUInt32LE(10)},a.prototype.crc32=function(){return this.data.readUInt32LE(14)},a.prototype.fileNameLength=function(){return this.data.readUInt16LE(26)},a.prototype.extraFieldLength=function(){return this.data.readUInt16LE(28)},a.prototype.fileName=function(){return e(this.data,this.useUTF8(),30,this.fileNameLength())},a.prototype.extraField=function(){var a=30+this.fileNameLength();return this.data.slice(a,a+this.extraFieldLength())},a.prototype.totalSize=function(){return 30+this.fileNameLength()+this.extraFieldLength()},a.prototype.useUTF8=function(){return 2048===(2048&this.flags())},a}();c.FileHeader=q;var r=function(){function a(a,b,c){this.header=a,this.record=b,this.data=c}return a.prototype.decompress=function(){var a=this.header.compressionMethod();switch(a){case p.DEFLATE:var b=n(l.buffer2Arrayish(this.data.slice(0,this.record.compressedSize())),{chunkSize:this.record.uncompressedSize()});return l.arrayish2Buffer(b);case p.STORED:return l.copyingSlice(this.data,0,this.record.uncompressedSize());default:var c=p[a];throw c=c?c:"Unknown: "+a,new g.ApiError(g.ErrorCode.EINVAL,"Invalid compression method on file '"+this.header.fileName()+"': "+c)}},a.prototype.getHeader=function(){return this.header},a.prototype.getRecord=function(){return this.record},a.prototype.getRawData=function(){return this.data},a}();c.FileData=r;var s=function(){function a(a){this.data=a}return a.prototype.crc32=function(){return this.data.readUInt32LE(0)},a.prototype.compressedSize=function(){return this.data.readUInt32LE(4)},a.prototype.uncompressedSize=function(){return this.data.readUInt32LE(8)},a}();c.DataDescriptor=s;var t=function(){function a(a){if(this.data=a,134630224!==this.data.readUInt32LE(0))throw new g.ApiError(g.ErrorCode.EINVAL,"Invalid archive extra data record signature: "+this.data.readUInt32LE(0))}return a.prototype.length=function(){return this.data.readUInt32LE(4)},a.prototype.extraFieldData=function(){return this.data.slice(8,8+this.length())},a}();c.ArchiveExtraDataRecord=t;var u=function(){function a(a){if(this.data=a,84233040!==this.data.readUInt32LE(0))throw new g.ApiError(g.ErrorCode.EINVAL,"Invalid digital signature signature: "+this.data.readUInt32LE(0))}return a.prototype.size=function(){return this.data.readUInt16LE(4)},a.prototype.signatureData=function(){return this.data.slice(6,6+this.size())},a}();c.DigitalSignature=u;var v=function(){function a(a,b){if(this.zipData=a,this.data=b,33639248!==this.data.readUInt32LE(0))throw new g.ApiError(g.ErrorCode.EINVAL,"Invalid Zip file: Central directory record has invalid signature: "+this.data.readUInt32LE(0));this._filename=this.produceFilename()}return a.prototype.versionMadeBy=function(){return this.data.readUInt16LE(4)},a.prototype.versionNeeded=function(){return this.data.readUInt16LE(6)},a.prototype.flag=function(){return this.data.readUInt16LE(8)},a.prototype.compressionMethod=function(){return this.data.readUInt16LE(10)},a.prototype.lastModFileTime=function(){return d(this.data.readUInt16LE(12),this.data.readUInt16LE(14))},a.prototype.rawLastModFileTime=function(){return this.data.readUInt32LE(12)},a.prototype.crc32=function(){return this.data.readUInt32LE(16)},a.prototype.compressedSize=function(){return this.data.readUInt32LE(20)},a.prototype.uncompressedSize=function(){return this.data.readUInt32LE(24)},a.prototype.fileNameLength=function(){return this.data.readUInt16LE(28)},a.prototype.extraFieldLength=function(){return this.data.readUInt16LE(30)},a.prototype.fileCommentLength=function(){return this.data.readUInt16LE(32)},a.prototype.diskNumberStart=function(){return this.data.readUInt16LE(34)},a.prototype.internalAttributes=function(){return this.data.readUInt16LE(36)},a.prototype.externalAttributes=function(){return this.data.readUInt32LE(38)},a.prototype.headerRelativeOffset=function(){return this.data.readUInt32LE(42)},a.prototype.produceFilename=function(){var a=e(this.data,this.useUTF8(),46,this.fileNameLength());return a.replace(/\\/g,"/")},a.prototype.fileName=function(){return this._filename},a.prototype.rawFileName=function(){return this.data.slice(46,46+this.fileNameLength())},a.prototype.extraField=function(){var a=44+this.fileNameLength();return this.data.slice(a,a+this.extraFieldLength())},a.prototype.fileComment=function(){var a=46+this.fileNameLength()+this.extraFieldLength();return e(this.data,this.useUTF8(),a,this.fileCommentLength())},a.prototype.rawFileComment=function(){var a=46+this.fileNameLength()+this.extraFieldLength();return this.data.slice(a,a+this.fileCommentLength())},a.prototype.totalSize=function(){return 46+this.fileNameLength()+this.extraFieldLength()+this.fileCommentLength()},a.prototype.isDirectory=function(){var a=this.fileName();return!!(16&this.externalAttributes())||"/"===a.charAt(a.length-1)},a.prototype.isFile=function(){return!this.isDirectory()},a.prototype.useUTF8=function(){return 2048===(2048&this.flag())},a.prototype.isEncrypted=function(){return 1===(1&this.flag())},a.prototype.getFileData=function(){var a=this.headerRelativeOffset(),b=new q(this.zipData.slice(a));return new r(b,this,this.zipData.slice(a+b.totalSize()))},a.prototype.getData=function(){return this.getFileData().decompress()},a.prototype.getRawData=function(){return this.getFileData().getRawData()},a.prototype.getStats=function(){return new h["default"](h.FileType.FILE,this.uncompressedSize(),365,new Date,this.lastModFileTime())},a}();c.CentralDirectory=v;var w=function(){function a(a){if(this.data=a,101010256!==this.data.readUInt32LE(0))throw new g.ApiError(g.ErrorCode.EINVAL,"Invalid Zip file: End of central directory record has invalid signature: "+this.data.readUInt32LE(0))}return a.prototype.diskNumber=function(){return this.data.readUInt16LE(4)},a.prototype.cdDiskNumber=function(){return this.data.readUInt16LE(6)},a.prototype.cdDiskEntryCount=function(){return this.data.readUInt16LE(8)},a.prototype.cdTotalEntryCount=function(){return this.data.readUInt16LE(10)},a.prototype.cdSize=function(){return this.data.readUInt32LE(12)},a.prototype.cdOffset=function(){return this.data.readUInt32LE(16)},a.prototype.cdZipCommentLength=function(){return this.data.readUInt16LE(20)},a.prototype.cdZipComment=function(){return e(this.data,!0,22,this.cdZipCommentLength())},a.prototype.rawCdZipComment=function(){return this.data.slice(22,22+this.cdZipCommentLength())},a}();c.EndOfCentralDirectory=w;var x=function(){function a(a,b,c,d){this.index=a,this.directoryEntries=b,this.eocd=c,this.data=d}return a}();c.ZipTOC=x;var y=function(a){function b(b,c){void 0===c&&(c=""),a.call(this),this.input=b,this.name=c,this._index=new o.FileIndex,this._directoryEntries=[],this._eocd=null,b instanceof x?(this._index=b.index,this._directoryEntries=b.directoryEntries,this._eocd=b.eocd,this.data=b.data):(this.data=b,this.populateIndex())}return f(b,a),b.prototype.getName=function(){return"ZipFS"+(""!==this.name?" "+this.name:"")},b.prototype.getCentralDirectoryEntry=function(a){var b=this._index.getInode(a);if(null===b)throw g.ApiError.ENOENT(a);return o.isFileInode(b)?b.getData():o.isDirInode(b)?b.getData():void 0},b.prototype.getCentralDirectoryEntryAt=function(a){var b=this._directoryEntries[a];if(!b)throw new RangeError("Invalid directory index: "+a+".");return b},b.prototype.getNumberOfCentralDirectoryEntries=function(){return this._directoryEntries.length},b.prototype.getEndOfCentralDirectory=function(){return this._eocd},b.isAvailable=function(){return!0},b.prototype.diskSpace=function(a,b){b(this.data.length,0)},b.prototype.isReadOnly=function(){return!0},b.prototype.supportsLinks=function(){return!1},b.prototype.supportsProps=function(){return!1},b.prototype.supportsSynch=function(){return!0},b.prototype.statSync=function(a,b){var c=this._index.getInode(a);if(null===c)throw g.ApiError.ENOENT(a);var d;if(o.isFileInode(c))d=c.getData().getStats();else{if(!o.isDirInode(c))throw new g.ApiError(g.ErrorCode.EINVAL,"Invalid inode.");d=c.getStats()}return d},b.prototype.openSync=function(a,b,c){if(b.isWriteable())throw new g.ApiError(g.ErrorCode.EPERM,a);var d=this._index.getInode(a);if(!d)throw g.ApiError.ENOENT(a);if(!o.isFileInode(d))throw g.ApiError.EISDIR(a);var e=d.getData(),f=e.getStats();switch(b.pathExistsAction()){case j.ActionType.THROW_EXCEPTION:case j.ActionType.TRUNCATE_FILE:throw g.ApiError.EEXIST(a);case j.ActionType.NOP:return new k.NoSyncFile(this,a,b,f,e.getData());default:throw new g.ApiError(g.ErrorCode.EINVAL,"Invalid FileMode object.")}},b.prototype.readdirSync=function(a){var b=this._index.getInode(a);if(b){if(o.isDirInode(b))return b.getListing();throw g.ApiError.ENOTDIR(a)}throw g.ApiError.ENOENT(a)},b.prototype.readFileSync=function(a,b,c){var d=this.openSync(a,c,420);try{var e=d,f=e.getBuffer();return null===b?l.copyingSlice(f):f.toString(b)}finally{d.closeSync()}},b.getEOCD=function(a){for(var b=22,c=Math.min(b+65535,a.length-1),d=b;c>d;d++)if(101010256===a.readUInt32LE(a.length-d))return new w(a.slice(a.length-d));throw new g.ApiError(g.ErrorCode.EINVAL,"Invalid ZIP file: Could not locate End of Central Directory signature.")},b.addToIndex=function(a,b){var c=a.fileName();if("/"===c.charAt(0))throw new Error("WHY IS THIS ABSOLUTE");"/"===c.charAt(c.length-1)&&(c=c.substr(0,c.length-1)),a.isDirectory()?b.addPathFast("/"+c,new o.DirInode(a)):b.addPathFast("/"+c,new o.FileInode(a))},b.computeIndexResponsive=function(a,c,d,e,f,g,h){if(e>d){for(var i=0;i++<200&&e>d;){var j=new v(a,a.slice(d));b.addToIndex(j,c),d+=j.totalSize(),g.push(j)}setImmediate(function(){b.computeIndexResponsive(a,c,d,e,f,g,h)})}else f(new x(c,g,h,a))},b.computeIndex=function(a,c){var d=new o.FileIndex,e=b.getEOCD(a);if(e.diskNumber()!==e.cdDiskNumber())throw new g.ApiError(g.ErrorCode.EINVAL,"ZipFS does not support spanned zip files.");var f=e.cdOffset();if(4294967295===f)throw new g.ApiError(g.ErrorCode.EINVAL,"ZipFS does not support Zip64.");var h=f+e.cdSize();b.computeIndexResponsive(a,d,f,h,c,[],e)},b.prototype.populateIndex=function(){var a=this._eocd=b.getEOCD(this.data);if(a.diskNumber()!==a.cdDiskNumber())throw new g.ApiError(g.ErrorCode.EINVAL,"ZipFS does not support spanned zip files.");var c=a.cdOffset();if(4294967295===c)throw new g.ApiError(g.ErrorCode.EINVAL,"ZipFS does not support Zip64.");for(var d=c+a.cdSize();d>c;){var e=new v(this.data,this.data.slice(c));c+=e.totalSize(),b.addToIndex(e,this._index),this._directoryEntries.push(e)}},b}(i.SynchronousFileSystem);c.__esModule=!0,c["default"]=y},{"../core/api_error":49,"../core/file_flag":53,"../core/file_system":54,"../core/node_fs_stats":57,"../core/util":58,"../generic/file_index":60,"../generic/preload_file":63,"bfs-buffer/js/extended_ascii":7,"pako/dist/pako_inflate.min":34}],47:[function(a,b,c){b.exports=a("./main")},{"./main":65}],48:[function(a,b,c){(function(b){function d(a,b){if("function"!=typeof a)throw new j.ApiError(j.ErrorCode.EINVAL,"Callback must be a function.");switch("undefined"==typeof __numWaiting&&(__numWaiting=0),__numWaiting++,b){case 1:return function(b){setImmediate(function(){return __numWaiting--,a(b)})};case 2:return function(b,c){setImmediate(function(){return __numWaiting--,a(b,c)})};case 3:return function(b,c,d){setImmediate(function(){return __numWaiting--,a(b,c,d)})};default:throw new Error("Invalid invocation of wrapCb.")}}function e(a,b){switch(typeof a){case"number":return a;case"string":var c=parseInt(a,8);if(NaN!==c)return c;default:return b}}function f(a){if(a instanceof Date)return a;if("number"==typeof a)return new Date(1e3*a);throw new j.ApiError(j.ErrorCode.EINVAL,"Invalid time.")}function g(a){if(a.indexOf("\x00")>=0)throw new j.ApiError(j.ErrorCode.EINVAL,"Path must be a string without null bytes.");if(""===a)throw new j.ApiError(j.ErrorCode.EINVAL,"Path must not be empty.");return l.resolve(a)}function h(a,b,c,d){switch(typeof a){case"object":return{encoding:"undefined"!=typeof a.encoding?a.encoding:b,flag:"undefined"!=typeof a.flag?a.flag:c,mode:e(a.mode,d)};case"string":return{encoding:a,flag:c,mode:d};default:return{encoding:b,flag:c,mode:d}}}function i(){}var j=a("./api_error"),k=a("./file_flag"),l=a("path"),m=a("./node_fs_stats"),n=function(){function a(){this.root=null,this.fdMap={},this.nextFd=100,this.F_OK=0,this.R_OK=4,this.W_OK=2,this.X_OK=1,this._wrapCb=d}return a.prototype.getFdForFile=function(a){var b=this.nextFd++;return this.fdMap[b]=a,b},a.prototype.fd2file=function(a){var b=this.fdMap[a];if(b)return b;throw new j.ApiError(j.ErrorCode.EBADF,"Invalid file descriptor.")},a.prototype.closeFd=function(a){delete this.fdMap[a]},a.prototype.initialize=function(a){if(!a.constructor.isAvailable())throw new j.ApiError(j.ErrorCode.EINVAL,"Tried to instantiate BrowserFS with an unavailable file system.");return this.root=a},a.prototype._toUnixTimestamp=function(a){if("number"==typeof a)return a;if(a instanceof Date)return a.getTime()/1e3;throw new Error("Cannot parse time: "+a)},a.prototype.getRootFS=function(){return this.root?this.root:null},a.prototype.rename=function(a,b,c){void 0===c&&(c=i);var e=d(c,1);try{this.root.rename(g(a),g(b),e)}catch(f){e(f)}},a.prototype.renameSync=function(a,b){this.root.renameSync(g(a),g(b))},a.prototype.exists=function(a,b){void 0===b&&(b=i);var c=d(b,1);try{return this.root.exists(g(a),c)}catch(e){return c(!1)}},a.prototype.existsSync=function(a){try{return this.root.existsSync(g(a))}catch(b){return!1}},a.prototype.stat=function(a,b){void 0===b&&(b=i);var c=d(b,2);try{return this.root.stat(g(a),!1,c)}catch(e){return c(e,null)}},a.prototype.statSync=function(a){return this.root.statSync(g(a),!1)},a.prototype.lstat=function(a,b){void 0===b&&(b=i);var c=d(b,2);try{return this.root.stat(g(a),!0,c)}catch(e){return c(e,null)}},a.prototype.lstatSync=function(a){return this.root.statSync(g(a),!0)},a.prototype.truncate=function(a,b,c){void 0===b&&(b=0),void 0===c&&(c=i);var e=0;"function"==typeof b?c=b:"number"==typeof b&&(e=b);var f=d(c,1);try{if(0>e)throw new j.ApiError(j.ErrorCode.EINVAL);return this.root.truncate(g(a),e,f)}catch(h){return f(h)}},a.prototype.truncateSync=function(a,b){if(void 0===b&&(b=0),0>b)throw new j.ApiError(j.ErrorCode.EINVAL);return this.root.truncateSync(g(a),b)},a.prototype.unlink=function(a,b){void 0===b&&(b=i);var c=d(b,1);try{return this.root.unlink(g(a),c)}catch(e){return c(e)}},a.prototype.unlinkSync=function(a){return this.root.unlinkSync(g(a))},a.prototype.open=function(a,b,c,f){var h=this;void 0===f&&(f=i);var j=e(c,420);f="function"==typeof c?c:f;var l=d(f,2);try{this.root.open(g(a),k.FileFlag.getFileFlag(b),j,function(a,b){b?l(a,h.getFdForFile(b)):l(a)})}catch(m){l(m,null)}},a.prototype.openSync=function(a,b,c){return void 0===c&&(c=420),this.getFdForFile(this.root.openSync(g(a),k.FileFlag.getFileFlag(b),e(c,420)))},a.prototype.readFile=function(a,b,c){void 0===b&&(b={}),void 0===c&&(c=i);var e=h(b,null,"r",null);c="function"==typeof b?b:c;var f=d(c,2);try{var l=k.FileFlag.getFileFlag(e.flag);return l.isReadable()?this.root.readFile(g(a),e.encoding,l,f):f(new j.ApiError(j.ErrorCode.EINVAL,"Flag passed to readFile must allow for reading."))}catch(m){return f(m,null)}},a.prototype.readFileSync=function(a,b){void 0===b&&(b={});var c=h(b,null,"r",null),d=k.FileFlag.getFileFlag(c.flag);if(!d.isReadable())throw new j.ApiError(j.ErrorCode.EINVAL,"Flag passed to readFile must allow for reading.");return this.root.readFileSync(g(a),c.encoding,d)},a.prototype.writeFile=function(a,b,c,e){void 0===c&&(c={}),void 0===e&&(e=i);var f=h(c,"utf8","w",420);e="function"==typeof c?c:e;var l=d(e,1);try{var m=k.FileFlag.getFileFlag(f.flag);return m.isWriteable()?this.root.writeFile(g(a),b,f.encoding,m,f.mode,l):l(new j.ApiError(j.ErrorCode.EINVAL,"Flag passed to writeFile must allow for writing."))}catch(n){return l(n)}},a.prototype.writeFileSync=function(a,b,c){var d=h(c,"utf8","w",420),e=k.FileFlag.getFileFlag(d.flag);if(!e.isWriteable())throw new j.ApiError(j.ErrorCode.EINVAL,"Flag passed to writeFile must allow for writing.");return this.root.writeFileSync(g(a),b,d.encoding,e,d.mode)},a.prototype.appendFile=function(a,b,c,e){void 0===e&&(e=i);var f=h(c,"utf8","a",420);e="function"==typeof c?c:e;var l=d(e,1);try{var m=k.FileFlag.getFileFlag(f.flag);if(!m.isAppendable())return l(new j.ApiError(j.ErrorCode.EINVAL,"Flag passed to appendFile must allow for appending."));this.root.appendFile(g(a),b,f.encoding,m,f.mode,l)}catch(n){l(n)}},a.prototype.appendFileSync=function(a,b,c){var d=h(c,"utf8","a",420),e=k.FileFlag.getFileFlag(d.flag);if(!e.isAppendable())throw new j.ApiError(j.ErrorCode.EINVAL,"Flag passed to appendFile must allow for appending.");return this.root.appendFileSync(g(a),b,d.encoding,e,d.mode)},a.prototype.fstat=function(a,b){void 0===b&&(b=i);var c=d(b,2);try{var e=this.fd2file(a);e.stat(c)}catch(f){c(f)}},a.prototype.fstatSync=function(a){return this.fd2file(a).statSync()},a.prototype.close=function(a,b){var c=this;void 0===b&&(b=i);var e=d(b,1);try{this.fd2file(a).close(function(b){b||c.closeFd(a),e(b)})}catch(f){e(f)}},a.prototype.closeSync=function(a){this.fd2file(a).closeSync(),this.closeFd(a)},a.prototype.ftruncate=function(a,b,c){void 0===c&&(c=i);var e="number"==typeof b?b:0;c="function"==typeof b?b:c;var f=d(c,1);try{var g=this.fd2file(a);if(0>e)throw new j.ApiError(j.ErrorCode.EINVAL);g.truncate(e,f)}catch(h){f(h)}},a.prototype.ftruncateSync=function(a,b){void 0===b&&(b=0);var c=this.fd2file(a);if(0>b)throw new j.ApiError(j.ErrorCode.EINVAL);c.truncateSync(b)},a.prototype.fsync=function(a,b){void 0===b&&(b=i);var c=d(b,1);try{this.fd2file(a).sync(c)}catch(e){c(e)}},a.prototype.fsyncSync=function(a){this.fd2file(a).syncSync()},a.prototype.fdatasync=function(a,b){void 0===b&&(b=i);var c=d(b,1);try{this.fd2file(a).datasync(c)}catch(e){c(e)}},a.prototype.fdatasyncSync=function(a){this.fd2file(a).datasyncSync()},a.prototype.write=function(a,c,e,f,g,h){void 0===h&&(h=i);var k,l,m,n=null;if("string"==typeof c){var o="utf8";switch(typeof e){case"function":h=e;break;case"number":n=e,o="string"==typeof f?f:"utf8",h="function"==typeof g?g:h;break;default:return(h="function"==typeof f?f:"function"==typeof g?g:h)(new j.ApiError(j.ErrorCode.EINVAL,"Invalid arguments."))}k=new b(c,o),l=0,m=k.length}else k=c,l=e,m=f,n="number"==typeof g?g:null,h="function"==typeof g?g:h;var p=d(h,3);try{var q=this.fd2file(a);null==n&&(n=q.getPos()),q.write(k,l,m,n,p)}catch(r){p(r)}},a.prototype.writeSync=function(a,c,d,e,f){var g,h,i,j=0;if("string"==typeof c){i="number"==typeof d?d:null;var k="string"==typeof 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c=d(b,2);try{a=g(a),this.root.readdir(a,c)}catch(e){c(e)}},a.prototype.readdirSync=function(a){return a=g(a),this.root.readdirSync(a)},a.prototype.link=function(a,b,c){void 0===c&&(c=i);var e=d(c,1);try{a=g(a),b=g(b),this.root.link(a,b,e)}catch(f){e(f)}},a.prototype.linkSync=function(a,b){return a=g(a),b=g(b),this.root.linkSync(a,b)},a.prototype.symlink=function(a,b,c,e){void 0===e&&(e=i);var f="string"==typeof c?c:"file";e="function"==typeof c?c:e;var h=d(e,1);try{if("file"!==f&&"dir"!==f)return h(new j.ApiError(j.ErrorCode.EINVAL,"Invalid type: "+f));a=g(a),b=g(b),this.root.symlink(a,b,f,h)}catch(k){h(k)}},a.prototype.symlinkSync=function(a,b,c){if(null==c)c="file";else if("file"!==c&&"dir"!==c)throw new j.ApiError(j.ErrorCode.EINVAL,"Invalid type: "+c);return a=g(a),b=g(b),this.root.symlinkSync(a,b,c)},a.prototype.readlink=function(a,b){void 0===b&&(b=i);var c=d(b,2);try{a=g(a),this.root.readlink(a,c)}catch(e){c(e)}},a.prototype.readlinkSync=function(a){return a=g(a),this.root.readlinkSync(a)},a.prototype.chown=function(a,b,c,e){void 0===e&&(e=i);var f=d(e,1);try{a=g(a),this.root.chown(a,!1,b,c,f)}catch(h){f(h)}},a.prototype.chownSync=function(a,b,c){a=g(a),this.root.chownSync(a,!1,b,c)},a.prototype.lchown=function(a,b,c,e){void 0===e&&(e=i);var f=d(e,1);try{a=g(a),this.root.chown(a,!0,b,c,f)}catch(h){f(h)}},a.prototype.lchownSync=function(a,b,c){a=g(a),this.root.chownSync(a,!0,b,c)},a.prototype.chmod=function(a,b,c){void 0===c&&(c=i);var f=d(c,1);try{var h=e(b,-1);if(0>h)throw new j.ApiError(j.ErrorCode.EINVAL,"Invalid mode.");this.root.chmod(g(a),!1,h,f)}catch(k){f(k)}},a.prototype.chmodSync=function(a,b){var c=e(b,-1);if(0>c)throw new j.ApiError(j.ErrorCode.EINVAL,"Invalid mode.");a=g(a),this.root.chmodSync(a,!1,c)},a.prototype.lchmod=function(a,b,c){void 0===c&&(c=i);var f=d(c,1);try{var h=e(b,-1);if(0>h)throw new j.ApiError(j.ErrorCode.EINVAL,"Invalid 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j.ApiError(j.ErrorCode.ENOTSUP)},a.prototype.access=function(a,b,c){throw void 0===c&&(c=i),new j.ApiError(j.ErrorCode.ENOTSUP)},a.prototype.accessSync=function(a,b){throw new j.ApiError(j.ErrorCode.ENOTSUP)},a.prototype.createReadStream=function(a,b){throw new j.ApiError(j.ErrorCode.ENOTSUP)},a.prototype.createWriteStream=function(a,b){throw new j.ApiError(j.ErrorCode.ENOTSUP)},a.Stats=m["default"],a}();c.__esModule=!0,c["default"]=n;new n}).call(this,a("bfs-buffer").Buffer)},{"./api_error":49,"./file_flag":53,"./node_fs_stats":57,"bfs-buffer":2,path:10}],49:[function(a,b,c){(function(a){var b=this&&this.__extends||function(a,b){function c(){this.constructor=a}for(var d in b)b.hasOwnProperty(d)&&(a[d]=b[d]);a.prototype=null===b?Object.create(b):(c.prototype=b.prototype,new c)};!function(a){a[a.EPERM=0]="EPERM",a[a.ENOENT=1]="ENOENT",a[a.EIO=2]="EIO",a[a.EBADF=3]="EBADF",a[a.EACCES=4]="EACCES",a[a.EBUSY=5]="EBUSY",a[a.EEXIST=6]="EEXIST",a[a.ENOTDIR=7]="ENOTDIR",a[a.EISDIR=8]="EISDIR",a[a.EINVAL=9]="EINVAL",a[a.EFBIG=10]="EFBIG",a[a.ENOSPC=11]="ENOSPC",a[a.EROFS=12]="EROFS",a[a.ENOTEMPTY=13]="ENOTEMPTY",a[a.ENOTSUP=14]="ENOTSUP"}(c.ErrorCode||(c.ErrorCode={}));var d=c.ErrorCode,e={};e[d.EPERM]="Operation not permitted.",e[d.ENOENT]="No such file or directory.",e[d.EIO]="Input/output error.",e[d.EBADF]="Bad file descriptor.",e[d.EACCES]="Permission denied.",e[d.EBUSY]="Resource busy or locked.",e[d.EEXIST]="File exists.",e[d.ENOTDIR]="File is not a directory.",e[d.EISDIR]="File is a directory.",e[d.EINVAL]="Invalid argument.",e[d.EFBIG]="File is too big.",e[d.ENOSPC]="No space left on disk.",e[d.EROFS]="Cannot modify a read-only file system.",e[d.ENOTEMPTY]="Directory is not empty.",e[d.ENOTSUP]="Operation is not supported.";var f=function(c){function f(a,b,f){void 0===b&&(b=e[a]),void 0===f&&(f=null),c.call(this,b),this.syscall="",this.errno=a,this.code=d[a],this.path=f,this.stack=(new Error).stack,this.message="Error: "+this.code+": "+b+(this.path?", '"+this.path+"'":"")}return b(f,c),f.prototype.toString=function(){return this.message},f.prototype.toJSON=function(){return{errno:this.errno,code:this.code,path:this.path,stack:this.stack,message:this.message}},f.fromJSON=function(a){var b=new f(0);return b.errno=a.errno,b.code=a.code,b.path=a.path,b.stack=a.stack,b.message=a.message,b},f.prototype.writeToBuffer=function(b,c){void 0===b&&(b=new a(this.bufferSize())),void 0===c&&(c=0);var d=b.write(JSON.stringify(this.toJSON()),c+4);return b.writeUInt32LE(d,c),b},f.fromBuffer=function(a,b){return void 0===b&&(b=0),f.fromJSON(JSON.parse(a.toString("utf8",b+4,b+4+a.readUInt32LE(b))))},f.prototype.bufferSize=function(){return 4+a.byteLength(JSON.stringify(this.toJSON()))},f.FileError=function(a,b){return new f(a,e[a],b)},f.ENOENT=function(a){return this.FileError(d.ENOENT,a)},f.EEXIST=function(a){return this.FileError(d.EEXIST,a)},f.EISDIR=function(a){return this.FileError(d.EISDIR,a)},f.ENOTDIR=function(a){return this.FileError(d.ENOTDIR,a)},f.EPERM=function(a){return this.FileError(d.EPERM,a)},f.ENOTEMPTY=function(a){return this.FileError(d.ENOTEMPTY,a)},f}(Error);c.ApiError=f}).call(this,a("bfs-buffer").Buffer)},{"bfs-buffer":2}],50:[function(a,b,c){var d=a("../backend/AsyncMirror");c.AsyncMirror=d["default"];var e=a("../backend/Dropbox");c.Dropbox=e["default"];var f=a("../backend/FolderAdapter");c.FolderAdapter=f["default"];var g=a("../backend/HTML5FS");c.HTML5FS=g["default"];var h=a("../backend/IndexedDB");c.IndexedDB=h["default"];var i=a("../backend/InMemory");c.InMemory=i["default"];var j=a("../backend/LocalStorage");c.LocalStorage=j["default"];var k=a("../backend/MountableFileSystem");c.MountableFileSystem=k["default"];var l=a("../backend/OverlayFS");c.OverlayFS=l["default"];var m=a("../backend/WorkerFS");c.WorkerFS=m["default"];var n=a("../backend/XmlHttpRequest");c.XmlHttpRequest=n["default"];var o=a("../backend/ZipFS");c.ZipFS=o["default"]},{"../backend/AsyncMirror":35,"../backend/Dropbox":36,"../backend/FolderAdapter":37,"../backend/HTML5FS":38,"../backend/InMemory":39,"../backend/IndexedDB":40,"../backend/LocalStorage":41,"../backend/MountableFileSystem":42,"../backend/OverlayFS":43,"../backend/WorkerFS":44,"../backend/XmlHttpRequest":45,"../backend/ZipFS":46}],51:[function(a,b,c){(function(b,d){function e(a){a.Buffer=d,a.process=b;var c=null!=a.require?a.require:null;a.require=function(a){var b=g(a);return null==b?c.apply(null,Array.prototype.slice.call(arguments,0)):b}}function f(a,b){m[a]=b}function g(a){switch(a){case"fs":return j;case"path":return k;case"buffer":return i;case"process":return b;case"bfs_utils":return n;default:return m[a]}}function h(a){return j.initialize(a)}var i=a("buffer"),j=a("./node_fs"),k=a("path"),l=a("../generic/emscripten_fs");c.EmscriptenFS=l["default"];var m=a("./backends");c.FileSystem=m;var n=a("./util");b.initializeTTYs&&b.initializeTTYs(),c.install=e,c.registerFileSystem=f,c.BFSRequire=g,c.initialize=h}).call(this,a("bfs-process"),a("bfs-buffer").Buffer)},{"../generic/emscripten_fs":59,"./backends":50,"./node_fs":56,"./util":58,"bfs-buffer":2,"bfs-process":11,buffer:2,path:10}],52:[function(a,b,c){var d=a("./api_error"),e=function(){function a(){}return a.prototype.sync=function(a){a(new d.ApiError(d.ErrorCode.ENOTSUP))},a.prototype.syncSync=function(){throw new d.ApiError(d.ErrorCode.ENOTSUP)},a.prototype.datasync=function(a){this.sync(a)},a.prototype.datasyncSync=function(){return this.syncSync()},a.prototype.chown=function(a,b,c){c(new d.ApiError(d.ErrorCode.ENOTSUP))},a.prototype.chownSync=function(a,b){throw new d.ApiError(d.ErrorCode.ENOTSUP)},a.prototype.chmod=function(a,b){b(new d.ApiError(d.ErrorCode.ENOTSUP))},a.prototype.chmodSync=function(a){throw new d.ApiError(d.ErrorCode.ENOTSUP)},a.prototype.utimes=function(a,b,c){c(new d.ApiError(d.ErrorCode.ENOTSUP))},a.prototype.utimesSync=function(a,b){throw new d.ApiError(d.ErrorCode.ENOTSUP)},a}();c.BaseFile=e},{"./api_error":49}],53:[function(a,b,c){var d=a("./api_error");!function(a){a[a.NOP=0]="NOP",a[a.THROW_EXCEPTION=1]="THROW_EXCEPTION",a[a.TRUNCATE_FILE=2]="TRUNCATE_FILE",a[a.CREATE_FILE=3]="CREATE_FILE"}(c.ActionType||(c.ActionType={}));var e=c.ActionType,f=function(){function a(b){if(this.flagStr=b,a.validFlagStrs.indexOf(b)<0)throw new d.ApiError(d.ErrorCode.EINVAL,"Invalid flag: "+b)}return a.getFileFlag=function(b){return a.flagCache.hasOwnProperty(b)?a.flagCache[b]:a.flagCache[b]=new a(b)},a.prototype.getFlagString=function(){return this.flagStr},a.prototype.isReadable=function(){return-1!==this.flagStr.indexOf("r")||-1!==this.flagStr.indexOf("+")},a.prototype.isWriteable=function(){return-1!==this.flagStr.indexOf("w")||-1!==this.flagStr.indexOf("a")||-1!==this.flagStr.indexOf("+")},a.prototype.isTruncating=function(){return-1!==this.flagStr.indexOf("w")},a.prototype.isAppendable=function(){return-1!==this.flagStr.indexOf("a")},a.prototype.isSynchronous=function(){return-1!==this.flagStr.indexOf("s")},a.prototype.isExclusive=function(){return-1!==this.flagStr.indexOf("x")},a.prototype.pathExistsAction=function(){return this.isExclusive()?e.THROW_EXCEPTION:this.isTruncating()?e.TRUNCATE_FILE:e.NOP},a.prototype.pathNotExistsAction=function(){return(this.isWriteable()||this.isAppendable())&&"r+"!==this.flagStr?e.CREATE_FILE:e.THROW_EXCEPTION},a.flagCache={},a.validFlagStrs=["r","r+","rs","rs+","w","wx","w+","wx+","a","ax","a+","ax+"],a}();c.FileFlag=f},{"./api_error":49}],54:[function(a,b,c){(function(b){var d=this&&this.__extends||function(a,b){function c(){this.constructor=a}for(var d in b)b.hasOwnProperty(d)&&(a[d]=b[d]);a.prototype=null===b?Object.create(b):(c.prototype=b.prototype, +new c)},e=a("./api_error"),f=a("./file_flag"),g=a("path"),h=function(){function a(){}return a.prototype.supportsLinks=function(){return!1},a.prototype.diskSpace=function(a,b){b(0,0)},a.prototype.openFile=function(a,b,c){throw new e.ApiError(e.ErrorCode.ENOTSUP)},a.prototype.createFile=function(a,b,c,d){throw new e.ApiError(e.ErrorCode.ENOTSUP)},a.prototype.open=function(a,b,c,d){var h=this,i=function(i,j){if(i)switch(b.pathNotExistsAction()){case f.ActionType.CREATE_FILE:return h.stat(g.dirname(a),!1,function(f,i){f?d(f):i.isDirectory()?h.createFile(a,b,c,d):d(e.ApiError.ENOTDIR(g.dirname(a)))});case f.ActionType.THROW_EXCEPTION:return d(e.ApiError.ENOENT(a));default:return d(new e.ApiError(e.ErrorCode.EINVAL,"Invalid FileFlag object."))}else{if(j.isDirectory())return d(e.ApiError.EISDIR(a));switch(b.pathExistsAction()){case f.ActionType.THROW_EXCEPTION:return d(e.ApiError.EEXIST(a));case f.ActionType.TRUNCATE_FILE:return h.openFile(a,b,function(a,b){a?d(a):b.truncate(0,function(){b.sync(function(){d(null,b)})})});case f.ActionType.NOP:return h.openFile(a,b,d);default:return d(new e.ApiError(e.ErrorCode.EINVAL,"Invalid FileFlag object."))}}};this.stat(a,!1,i)},a.prototype.rename=function(a,b,c){c(new e.ApiError(e.ErrorCode.ENOTSUP))},a.prototype.renameSync=function(a,b){throw new e.ApiError(e.ErrorCode.ENOTSUP)},a.prototype.stat=function(a,b,c){c(new e.ApiError(e.ErrorCode.ENOTSUP))},a.prototype.statSync=function(a,b){throw new e.ApiError(e.ErrorCode.ENOTSUP)},a.prototype.openFileSync=function(a,b){throw new e.ApiError(e.ErrorCode.ENOTSUP)},a.prototype.createFileSync=function(a,b,c){throw new e.ApiError(e.ErrorCode.ENOTSUP)},a.prototype.openSync=function(a,b,c){var d;try{d=this.statSync(a,!1)}catch(h){switch(b.pathNotExistsAction()){case f.ActionType.CREATE_FILE:var i=this.statSync(g.dirname(a),!1);if(!i.isDirectory())throw e.ApiError.ENOTDIR(g.dirname(a));return this.createFileSync(a,b,c);case f.ActionType.THROW_EXCEPTION:throw e.ApiError.ENOENT(a);default:throw new e.ApiError(e.ErrorCode.EINVAL,"Invalid FileFlag object.")}}if(d.isDirectory())throw e.ApiError.EISDIR(a);switch(b.pathExistsAction()){case f.ActionType.THROW_EXCEPTION:throw e.ApiError.EEXIST(a);case f.ActionType.TRUNCATE_FILE:return this.unlinkSync(a),this.createFileSync(a,b,d.mode);case f.ActionType.NOP:return this.openFileSync(a,b);default:throw new e.ApiError(e.ErrorCode.EINVAL,"Invalid FileFlag object.")}},a.prototype.unlink=function(a,b){b(new e.ApiError(e.ErrorCode.ENOTSUP))},a.prototype.unlinkSync=function(a){throw new e.ApiError(e.ErrorCode.ENOTSUP)},a.prototype.rmdir=function(a,b){b(new e.ApiError(e.ErrorCode.ENOTSUP))},a.prototype.rmdirSync=function(a){throw new e.ApiError(e.ErrorCode.ENOTSUP)},a.prototype.mkdir=function(a,b,c){c(new e.ApiError(e.ErrorCode.ENOTSUP))},a.prototype.mkdirSync=function(a,b){throw new e.ApiError(e.ErrorCode.ENOTSUP)},a.prototype.readdir=function(a,b){b(new e.ApiError(e.ErrorCode.ENOTSUP))},a.prototype.readdirSync=function(a){throw new e.ApiError(e.ErrorCode.ENOTSUP)},a.prototype.exists=function(a,b){this.stat(a,null,function(a){b(null==a)})},a.prototype.existsSync=function(a){try{return this.statSync(a,!0),!0}catch(b){return!1}},a.prototype.realpath=function(a,b,c){if(this.supportsLinks())for(var d=a.split(g.sep),f=0;fc||0>d||d>a.length||c>d)throw new TypeError("Invalid slice bounds on buffer of length "+a.length+": ["+c+", "+d+"]");if(0===a.length)return new b(0);if(m){var e=f(a),g=a.readUInt8(0),h=(g+1)%255;return a.writeUInt8(h,0),e[0]===h?(e[0]=g,i(e.slice(c,d))):(a.writeUInt8(g,0),i(e.subarray(c,d)))}var j=new b(d-c);return a.copy(j,0,c,d),j}var l=a("path"),m="undefined"!=typeof ArrayBuffer;c.isIE="undefined"!=typeof navigator&&(null!=/(msie) ([\w.]+)/.exec(navigator.userAgent.toLowerCase())||-1!==navigator.userAgent.indexOf("Trident")),c.isWebWorker="undefined"==typeof window,c.mkdirpSync=d,c.buffer2ArrayBuffer=e,c.buffer2Uint8array=f,c.buffer2Arrayish=g,c.arrayish2Buffer=h,c.uint8Array2Buffer=i,c.arrayBuffer2Buffer=j,"undefined"!=typeof ArrayBuffer&&"undefined"!=typeof Uint8Array&&(Uint8Array.prototype.slice||(Uint8Array.prototype.slice=function(a,b){void 0===a&&(a=0),void 0===b&&(b=this.length);var c=this;return 0>a&&(a=this.length+a,0>a&&(a=0)),0>b&&(b=this.length+b,0>b&&(b=0)),a>b&&(b=a),new Uint8Array(c.buffer,c.byteOffset+a,b-a)})),c.copyingSlice=k}).call(this,a("bfs-buffer").Buffer)},{"bfs-buffer":2,path:10}],59:[function(a,b,c){var d=a("../core/browserfs"),e=a("../core/node_fs"),f=a("../core/util"),g=function(){function a(a){this.fs=a,this.nodefs=a.getNodeFS(),this.FS=a.getFS(),this.PATH=a.getPATH(),this.ERRNO_CODES=a.getERRNO_CODES()}return a.prototype.open=function(a){var b=this.fs.realPath(a.node),c=this.FS;try{c.isFile(a.node.mode)&&(a.nfd=this.nodefs.openSync(b,this.fs.flagsToPermissionString(a.flags)))}catch(d){if(!d.code)throw d;throw new c.ErrnoError(this.ERRNO_CODES[d.code])}},a.prototype.close=function(a){var b=this.FS;try{b.isFile(a.node.mode)&&a.nfd&&this.nodefs.closeSync(a.nfd)}catch(c){if(!c.code)throw c;throw new b.ErrnoError(this.ERRNO_CODES[c.code])}},a.prototype.read=function(a,b,c,d,e){try{return this.nodefs.readSync(a.nfd,f.uint8Array2Buffer(b),c,d,e)}catch(g){throw new this.FS.ErrnoError(this.ERRNO_CODES[g.code])}},a.prototype.write=function(a,b,c,d,e){try{return this.nodefs.writeSync(a.nfd,f.uint8Array2Buffer(b),c,d,e)}catch(g){throw new this.FS.ErrnoError(this.ERRNO_CODES[g.code])}},a.prototype.llseek=function(a,b,c){var d=b;if(1===c)d+=a.position;else if(2===c&&this.FS.isFile(a.node.mode))try{var e=this.nodefs.fstatSync(a.nfd);d+=e.size}catch(f){throw new this.FS.ErrnoError(this.ERRNO_CODES[f.code])}if(0>d)throw new this.FS.ErrnoError(this.ERRNO_CODES.EINVAL);return a.position=d,d},a}(),h=function(){function a(a){this.fs=a,this.nodefs=a.getNodeFS(),this.FS=a.getFS(),this.PATH=a.getPATH(),this.ERRNO_CODES=a.getERRNO_CODES()}return a.prototype.getattr=function(a){var b,c=this.fs.realPath(a);try{b=this.nodefs.lstatSync(c)}catch(d){if(!d.code)throw d;throw new this.FS.ErrnoError(this.ERRNO_CODES[d.code])}return{dev:b.dev,ino:b.ino,mode:b.mode,nlink:b.nlink,uid:b.uid,gid:b.gid,rdev:b.rdev,size:b.size,atime:b.atime,mtime:b.mtime,ctime:b.ctime,blksize:b.blksize,blocks:b.blocks}},a.prototype.setattr=function(a,b){var c=this.fs.realPath(a);try{if(void 0!==b.mode&&(this.nodefs.chmodSync(c,b.mode),a.mode=b.mode),void 0!==b.timestamp){var d=new Date(b.timestamp);this.nodefs.utimesSync(c,d,d)}}catch(e){if(!e.code)throw e;if("ENOTSUP"!==e.code)throw new this.FS.ErrnoError(this.ERRNO_CODES[e.code])}if(void 0!==b.size)try{this.nodefs.truncateSync(c,b.size)}catch(e){if(!e.code)throw e;throw new this.FS.ErrnoError(this.ERRNO_CODES[e.code])}},a.prototype.lookup=function(a,b){var c=this.PATH.join2(this.fs.realPath(a),b),d=this.fs.getMode(c);return this.fs.createNode(a,b,d)},a.prototype.mknod=function(a,b,c,d){var e=this.fs.createNode(a,b,c,d),f=this.fs.realPath(e);try{this.FS.isDir(e.mode)?this.nodefs.mkdirSync(f,e.mode):this.nodefs.writeFileSync(f,"",{mode:e.mode})}catch(g){if(!g.code)throw g;throw new this.FS.ErrnoError(this.ERRNO_CODES[g.code])}return e},a.prototype.rename=function(a,b,c){var d=this.fs.realPath(a),e=this.PATH.join2(this.fs.realPath(b),c);try{this.nodefs.renameSync(d,e)}catch(f){if(!f.code)throw f;throw new this.FS.ErrnoError(this.ERRNO_CODES[f.code])}},a.prototype.unlink=function(a,b){var c=this.PATH.join2(this.fs.realPath(a),b);try{this.nodefs.unlinkSync(c)}catch(d){if(!d.code)throw d;throw new this.FS.ErrnoError(this.ERRNO_CODES[d.code])}},a.prototype.rmdir=function(a,b){var c=this.PATH.join2(this.fs.realPath(a),b);try{this.nodefs.rmdirSync(c)}catch(d){if(!d.code)throw d;throw new this.FS.ErrnoError(this.ERRNO_CODES[d.code])}},a.prototype.readdir=function(a){var b=this.fs.realPath(a);try{return this.nodefs.readdirSync(b)}catch(c){if(!c.code)throw c;throw new this.FS.ErrnoError(this.ERRNO_CODES[c.code])}},a.prototype.symlink=function(a,b,c){var d=this.PATH.join2(this.fs.realPath(a),b);try{this.nodefs.symlinkSync(c,d)}catch(e){if(!e.code)throw e;throw new this.FS.ErrnoError(this.ERRNO_CODES[e.code])}},a.prototype.readlink=function(a){var b=this.fs.realPath(a);try{return this.nodefs.readlinkSync(b)}catch(c){if(!c.code)throw c;throw new this.FS.ErrnoError(this.ERRNO_CODES[c.code])}},a}(),i=function(){function a(a,b,c,f){if(void 0===a&&(a=self.FS),void 0===b&&(b=self.PATH),void 0===c&&(c=self.ERRNO_CODES),void 0===f&&(f=e),this.flagsToPermissionStringMap={0:"r",1:"r+",2:"r+",64:"r",65:"r+",66:"r+",129:"rx+",193:"rx+",514:"w+",577:"w",578:"w+",705:"wx",706:"wx+",1024:"a",1025:"a",1026:"a+",1089:"a",1090:"a+",1153:"ax",1154:"ax+",1217:"ax",1218:"ax+",4096:"rs",4098:"rs+"},"undefined"==typeof d)throw new Error("BrowserFS is not loaded. Please load it before this library.");this.nodefs=f,this.FS=a,this.PATH=b,this.ERRNO_CODES=c,this.node_ops=new h(this),this.stream_ops=new g(this)}return a.prototype.mount=function(a){return this.createNode(null,"/",this.getMode(a.opts.root),0)},a.prototype.createNode=function(a,b,c,d){var e=this.FS;if(!e.isDir(c)&&!e.isFile(c)&&!e.isLink(c))throw new e.ErrnoError(this.ERRNO_CODES.EINVAL);var f=e.createNode(a,b,c);return f.node_ops=this.node_ops,f.stream_ops=this.stream_ops,f},a.prototype.getMode=function(a){var b;try{b=this.nodefs.lstatSync(a)}catch(c){if(!c.code)throw c;throw new this.FS.ErrnoError(this.ERRNO_CODES[c.code])}return b.mode},a.prototype.realPath=function(a){for(var b=[];a.parent!==a;)b.push(a.name),a=a.parent;return b.push(a.mount.opts.root),b.reverse(),this.PATH.join.apply(null,b)},a.prototype.flagsToPermissionString=function(a){var b="string"==typeof a?parseInt(a,10):a;return b&=8191,b in this.flagsToPermissionStringMap?this.flagsToPermissionStringMap[b]:a},a.prototype.getNodeFS=function(){return this.nodefs},a.prototype.getFS=function(){return this.FS},a.prototype.getPATH=function(){return this.PATH},a.prototype.getERRNO_CODES=function(){return this.ERRNO_CODES},a}();c.__esModule=!0,c["default"]=i},{"../core/browserfs":51,"../core/node_fs":56,"../core/util":58}],60:[function(a,b,c){function d(a){return a&&a.isFile()}function e(a){return a&&a.isDir()}var f=a("../core/node_fs_stats"),g=a("path"),h=function(){function a(){this._index={},this.addPath("/",new j)}return a.prototype._split_path=function(a){var b=g.dirname(a),c=a.substr(b.length+("/"===b?0:1));return[b,c]},a.prototype.fileIterator=function(a){for(var b in this._index)for(var c=this._index[b],e=c.getListing(),f=0;f0;){var g,h=e.pop(),k=h[0],l=h[1],m=h[2];for(var n in l){var o=l[n],p=""+k+"/"+n;null!=o?(c._index[p]=g=new j,e.push([p,o,g])):g=new i(new f["default"](f.FileType.FILE,-1,365)),null!=m&&(m._ls[n]=g)}}return c},a}();c.FileIndex=h;var i=function(){function a(a){this.data=a}return a.prototype.isFile=function(){return!0},a.prototype.isDir=function(){return!1},a.prototype.getData=function(){return this.data},a.prototype.setData=function(a){this.data=a},a}();c.FileInode=i;var j=function(){function a(a){void 0===a&&(a=null),this.data=a,this._ls={}}return a.prototype.isFile=function(){return!1},a.prototype.isDir=function(){return!0},a.prototype.getData=function(){return this.data},a.prototype.getStats=function(){return new f["default"](f.FileType.DIRECTORY,4096,365)},a.prototype.getListing=function(){return Object.keys(this._ls)},a.prototype.getItem=function(a){var b;return null!=(b=this._ls[a])?b:null},a.prototype.addItem=function(a,b){return a in this._ls?!1:(this._ls[a]=b,!0)},a.prototype.remItem=function(a){var b=this._ls[a];return void 0===b?null:(delete this._ls[a],b)},a}();c.DirInode=j,c.isFileInode=d,c.isDirInode=e},{"../core/node_fs_stats":57,path:10}],61:[function(a,b,c){(function(c){var d=a("../core/node_fs_stats"),e=function(){function a(a,b,c,d,e,f){this.id=a,this.size=b,this.mode=c,this.atime=d,this.mtime=e,this.ctime=f}return a.prototype.toStats=function(){return new d["default"]((61440&this.mode)===d.FileType.DIRECTORY?d.FileType.DIRECTORY:d.FileType.FILE,this.size,this.mode,new Date(this.atime),new Date(this.mtime),new Date(this.ctime))},a.prototype.getSize=function(){return 30+this.id.length},a.prototype.toBuffer=function(a){return void 0===a&&(a=new c(this.getSize())),a.writeUInt32LE(this.size,0),a.writeUInt16LE(this.mode,4),a.writeDoubleLE(this.atime,6),a.writeDoubleLE(this.mtime,14),a.writeDoubleLE(this.ctime,22),a.write(this.id,30,this.id.length,"ascii"),a},a.prototype.update=function(a){var b=!1;this.size!==a.size&&(this.size=a.size,b=!0),this.mode!==a.mode&&(this.mode=a.mode,b=!0);var c=a.atime.getTime();this.atime!==c&&(this.atime=c,b=!0);var d=a.mtime.getTime();this.mtime!==d&&(this.mtime=d,b=!0);var e=a.ctime.getTime();return this.ctime!==e&&(this.ctime=e,b=!0),b},a.fromBuffer=function(b){if(void 0===b)throw new Error("NO");return new a(b.toString("ascii",30),b.readUInt32LE(0),b.readUInt16LE(4),b.readDoubleLE(6),b.readDoubleLE(14),b.readDoubleLE(22))},a.prototype.isFile=function(){return(61440&this.mode)===d.FileType.FILE},a.prototype.isDirectory=function(){return(61440&this.mode)===d.FileType.DIRECTORY},a}();b.exports=e}).call(this,a("bfs-buffer").Buffer)},{"../core/node_fs_stats":57,"bfs-buffer":2}],62:[function(a,b,c){(function(b){function d(){return"xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(/[xy]/g,function(a){var b=16*Math.random()|0,c="x"==a?b:3&b|8;return c.toString(16)})}function e(a,b){return a?(b(a),!1):!0}function f(a,b,c){return a?(b.abort(function(){c(a)}),!1):!0}var g=this&&this.__extends||function(a,b){function c(){this.constructor=a}for(var d in b)b.hasOwnProperty(d)&&(a[d]=b[d]);a.prototype=null===b?Object.create(b):(c.prototype=b.prototype,new c)},h=a("../core/file_system"),i=a("../core/api_error"),j=a("../core/node_fs_stats"),k=a("path"),l=a("../generic/inode"),m=a("../generic/preload_file"),n="/",o=function(){function a(a){this.store=a,this.originalData={},this.modifiedKeys=[]}return a.prototype.stashOldValue=function(a,b){this.originalData.hasOwnProperty(a)||(this.originalData[a]=b)},a.prototype.markModified=function(a){-1===this.modifiedKeys.indexOf(a)&&(this.modifiedKeys.push(a),this.originalData.hasOwnProperty(a)||(this.originalData[a]=this.store.get(a)))},a.prototype.get=function(a){var b=this.store.get(a);return this.stashOldValue(a,b),b},a.prototype.put=function(a,b,c){return this.markModified(a),this.store.put(a,b,c)},a.prototype.del=function(a){this.markModified(a),this.store.del(a)},a.prototype.commit=function(){},a.prototype.abort=function(){var a,b,c;for(a=0;ae;)try{return c=d(),a.put(c,b,!1),c}catch(f){}throw new i.ApiError(i.ErrorCode.EIO,"Unable to commit data to key-value store.")},c.prototype.commitNewFile=function(a,c,d,e,f){var g=k.dirname(c),h=k.basename(c),j=this.findINode(a,g),m=this.getDirListing(a,g,j),n=(new Date).getTime();if("/"===c)throw i.ApiError.EEXIST(c);if(m[h])throw i.ApiError.EEXIST(c);try{var o=this.addNewNode(a,f),p=new l(o,f.length,e|d,n,n,n),q=this.addNewNode(a,p.toBuffer());m[h]=q,a.put(j.id,new b(JSON.stringify(m)),!0)}catch(r){throw a.abort(),r}return a.commit(),p},c.prototype.empty=function(){this.store.clear(),this.makeRootDirectory()},c.prototype.renameSync=function(a,c){var d=this.store.beginTransaction("readwrite"),e=k.dirname(a),f=k.basename(a),g=k.dirname(c),h=k.basename(c),j=this.findINode(d,e),l=this.getDirListing(d,e,j);if(!l[f])throw i.ApiError.ENOENT(a);var m=l[f];if(delete l[f],0===(g+"/").indexOf(a+"/"))throw new i.ApiError(i.ErrorCode.EBUSY,e);var n,o;if(g===e?(n=j,o=l):(n=this.findINode(d,g),o=this.getDirListing(d,g,n)),o[h]){var p=this.getINode(d,c,o[h]);if(!p.isFile())throw i.ApiError.EPERM(c);try{d.del(p.id),d.del(o[h])}catch(q){throw d.abort(),q}}o[h]=m;try{d.put(j.id,new b(JSON.stringify(l)),!0),d.put(n.id,new b(JSON.stringify(o)),!0)}catch(q){throw d.abort(),q}d.commit()},c.prototype.statSync=function(a,b){return this.findINode(this.store.beginTransaction("readonly"),a).toStats()},c.prototype.createFileSync=function(a,c,d){var e=this.store.beginTransaction("readwrite"),f=new b(0),g=this.commitNewFile(e,a,j.FileType.FILE,d,f);return new p(this,a,c,g.toStats(),f)},c.prototype.openFileSync=function(a,b){var c=this.store.beginTransaction("readonly"),d=this.findINode(c,a),e=c.get(d.id);if(void 0===e)throw i.ApiError.ENOENT(a);return new p(this,a,b,d.toStats(),e)},c.prototype.removeEntry=function(a,c){var d=this.store.beginTransaction("readwrite"),e=k.dirname(a),f=this.findINode(d,e),g=this.getDirListing(d,e,f),h=k.basename(a);if(!g[h])throw i.ApiError.ENOENT(a);var j=g[h];delete g[h];var l=this.getINode(d,a,j);if(!c&&l.isDirectory())throw i.ApiError.EISDIR(a);if(c&&!l.isDirectory())throw i.ApiError.ENOTDIR(a);try{d.del(l.id),d.del(j),d.put(f.id,new b(JSON.stringify(g)),!0)}catch(m){throw d.abort(),m}d.commit()},c.prototype.unlinkSync=function(a){this.removeEntry(a,!1)},c.prototype.rmdirSync=function(a){if(this.readdirSync(a).length>0)throw i.ApiError.ENOTEMPTY(a);this.removeEntry(a,!0)},c.prototype.mkdirSync=function(a,c){var d=this.store.beginTransaction("readwrite"),e=new b("{}");this.commitNewFile(d,a,j.FileType.DIRECTORY,c,e)},c.prototype.readdirSync=function(a){var b=this.store.beginTransaction("readonly");return Object.keys(this.getDirListing(b,a,this.findINode(b,a)))},c.prototype._syncSync=function(a,b,c){var d=this.store.beginTransaction("readwrite"),e=this._findINode(d,k.dirname(a),k.basename(a)),f=this.getINode(d,a,e),g=f.update(c);try{d.put(f.id,b,!0),g&&d.put(e,f.toBuffer(),!0)}catch(h){throw d.abort(),h}d.commit()},c}(h.SynchronousFileSystem);c.SyncKeyValueFileSystem=q;var r=function(a){function b(b,c,d,e,f){a.call(this,b,c,d,e,f)}return g(b,a),b.prototype.sync=function(a){var b=this;this.isDirty()?this._fs._sync(this.getPath(),this.getBuffer(),this.getStats(),function(c){c||b.resetDirty(),a(c)}):a()},b.prototype.close=function(a){this.sync(a)},b}(m.PreloadFile);c.AsyncKeyValueFile=r;var s=function(a){function c(){a.apply(this,arguments)}return g(c,a),c.prototype.init=function(a,b){this.store=a,this.makeRootDirectory(b)},c.isAvailable=function(){return!0},c.prototype.getName=function(){return this.store.name()},c.prototype.isReadOnly=function(){return!1},c.prototype.supportsSymlinks=function(){return!1},c.prototype.supportsProps=function(){return!1},c.prototype.supportsSynch=function(){return!1},c.prototype.makeRootDirectory=function(a){var c=this.store.beginTransaction("readwrite");c.get(n,function(e,g){if(e||void 0===g){var h=(new Date).getTime(),i=new l(d(),4096,511|j.FileType.DIRECTORY,h,h,h);c.put(i.id,new b("{}"),!1,function(b){f(b,c,a)&&c.put(n,i.toBuffer(),!1,function(b){b?c.abort(function(){a(b)}):c.commit(a)})})}else c.commit(a)})},c.prototype._findINode=function(a,b,c,d){var f=this,g=function(a,e,f){a?d(a):f[c]?d(null,f[c]):d(i.ApiError.ENOENT(k.resolve(b,c)))};"/"===b?""===c?d(null,n):this.getINode(a,b,n,function(c,h){e(c,d)&&f.getDirListing(a,b,h,function(a,b){g(a,h,b)})}):this.findINodeAndDirListing(a,b,g)},c.prototype.findINode=function(a,b,c){var d=this;this._findINode(a,k.dirname(b),k.basename(b),function(f,g){e(f,c)&&d.getINode(a,b,g,c)})},c.prototype.getINode=function(a,b,c,d){a.get(c,function(a,c){e(a,d)&&(void 0===c?d(i.ApiError.ENOENT(b)):d(null,l.fromBuffer(c)))})},c.prototype.getDirListing=function(a,b,c,d){c.isDirectory()?a.get(c.id,function(a,c){if(e(a,d))try{d(null,JSON.parse(c.toString()))}catch(a){d(i.ApiError.ENOENT(b))}}):d(i.ApiError.ENOTDIR(b))},c.prototype.findINodeAndDirListing=function(a,b,c){var d=this;this.findINode(a,b,function(f,g){e(f,c)&&d.getDirListing(a,b,g,function(a,b){e(a,c)&&c(null,g,b)})})},c.prototype.addNewNode=function(a,b,c){var e,f=0,g=function(){5===++f?c(new i.ApiError(i.ErrorCode.EIO,"Unable to commit data to key-value store.")):(e=d(),a.put(e,b,!1,function(a,b){a||!b?g():c(null,e)}))};g()},c.prototype.commitNewFile=function(a,c,d,e,g,h){var j=this,m=k.dirname(c),n=k.basename(c),o=(new Date).getTime();return"/"===c?h(i.ApiError.EEXIST(c)):void this.findINodeAndDirListing(a,m,function(k,m,p){f(k,a,h)&&(p[n]?a.abort(function(){h(i.ApiError.EEXIST(c))}):j.addNewNode(a,g,function(c,i){if(f(c,a,h)){var k=new l(i,g.length,e|d,o,o,o);j.addNewNode(a,k.toBuffer(),function(c,d){f(c,a,h)&&(p[n]=d,a.put(m.id,new b(JSON.stringify(p)),!0,function(b){f(b,a,h)&&a.commit(function(b){f(b,a,h)&&h(null,k)})}))})}}))})},c.prototype.empty=function(a){var b=this;this.store.clear(function(c){e(c,a)&&b.makeRootDirectory(a)})},c.prototype.rename=function(a,c,d){var e=this,g=this.store.beginTransaction("readwrite"),h=k.dirname(a),j=k.basename(a),l=k.dirname(c),m=k.basename(c),n={},o={},p=!1;if(0===(l+"/").indexOf(a+"/"))return d(new i.ApiError(i.ErrorCode.EBUSY,h));var q=function(){if(!p&&o.hasOwnProperty(h)&&o.hasOwnProperty(l)){var k=o[h],q=n[h],r=o[l],s=n[l];if(k[j]){var t=k[j];delete k[j];var u=function(){r[m]=t,g.put(q.id,new b(JSON.stringify(k)),!0,function(a){f(a,g,d)&&(h===l?g.commit(d):g.put(s.id,new b(JSON.stringify(r)),!0,function(a){f(a,g,d)&&g.commit(d)}))})};r[m]?e.getINode(g,c,r[m],function(a,b){f(a,g,d)&&(b.isFile()?g.del(b.id,function(a){f(a,g,d)&&g.del(r[m],function(a){f(a,g,d)&&u()})}):g.abort(function(a){d(i.ApiError.EPERM(c))}))}):u()}else d(i.ApiError.ENOENT(a))}},r=function(a){e.findINodeAndDirListing(g,a,function(b,c,e){b?p||(p=!0,g.abort(function(){d(b)})):(n[a]=c,o[a]=e,q())})};r(h),h!==l&&r(l)},c.prototype.stat=function(a,b,c){var d=this.store.beginTransaction("readonly");this.findINode(d,a,function(a,b){e(a,c)&&c(null,b.toStats())})},c.prototype.createFile=function(a,c,d,f){var g=this,h=this.store.beginTransaction("readwrite"),i=new b(0);this.commitNewFile(h,a,j.FileType.FILE,d,i,function(b,d){ +e(b,f)&&f(null,new r(g,a,c,d.toStats(),i))})},c.prototype.openFile=function(a,b,c){var d=this,f=this.store.beginTransaction("readonly");this.findINode(f,a,function(g,h){e(g,c)&&f.get(h.id,function(f,g){e(f,c)&&(void 0===g?c(i.ApiError.ENOENT(a)):c(null,new r(d,a,b,h.toStats(),g)))})})},c.prototype.removeEntry=function(a,c,d){var e=this,g=this.store.beginTransaction("readwrite"),h=k.dirname(a),j=k.basename(a);this.findINodeAndDirListing(g,h,function(h,k,l){if(f(h,g,d))if(l[j]){var m=l[j];delete l[j],e.getINode(g,a,m,function(e,h){f(e,g,d)&&(!c&&h.isDirectory()?g.abort(function(){d(i.ApiError.EISDIR(a))}):c&&!h.isDirectory()?g.abort(function(){d(i.ApiError.ENOTDIR(a))}):g.del(h.id,function(a){f(a,g,d)&&g.del(m,function(a){f(a,g,d)&&g.put(k.id,new b(JSON.stringify(l)),!0,function(a){f(a,g,d)&&g.commit(d)})})}))})}else g.abort(function(){d(i.ApiError.ENOENT(a))})})},c.prototype.unlink=function(a,b){this.removeEntry(a,!1,b)},c.prototype.rmdir=function(a,b){var c=this;this.readdir(a,function(d,e){d?b(d):e.length>0?b(i.ApiError.ENOTEMPTY(a)):c.removeEntry(a,!0,b)})},c.prototype.mkdir=function(a,c,d){var e=this.store.beginTransaction("readwrite"),f=new b("{}");this.commitNewFile(e,a,j.FileType.DIRECTORY,c,f,d)},c.prototype.readdir=function(a,b){var c=this,d=this.store.beginTransaction("readonly");this.findINode(d,a,function(f,g){e(f,b)&&c.getDirListing(d,a,g,function(a,c){e(a,b)&&b(null,Object.keys(c))})})},c.prototype._sync=function(a,b,c,d){var e=this,g=this.store.beginTransaction("readwrite");this._findINode(g,k.dirname(a),k.basename(a),function(h,i){f(h,g,d)&&e.getINode(g,a,i,function(a,e){if(f(a,g,d)){var h=e.update(c);g.put(e.id,b,!0,function(a){f(a,g,d)&&(h?g.put(i,e.toBuffer(),!0,function(a){f(a,g,d)&&g.commit(d)}):g.commit(d))})}})})},c}(h.BaseFileSystem);c.AsyncKeyValueFileSystem=s}).call(this,a("bfs-buffer").Buffer)},{"../core/api_error":49,"../core/file_system":54,"../core/node_fs_stats":57,"../generic/inode":61,"../generic/preload_file":63,"bfs-buffer":2,path:10}],63:[function(a,b,c){(function(b){var d=this&&this.__extends||function(a,b){function c(){this.constructor=a}for(var d in b)b.hasOwnProperty(d)&&(a[d]=b[d]);a.prototype=null===b?Object.create(b):(c.prototype=b.prototype,new c)},e=a("../core/file"),f=a("../core/api_error"),g=a("../core/node_fs"),h=function(a){function c(c,d,e,f,g){if(a.call(this),this._pos=0,this._dirty=!1,this._fs=c,this._path=d,this._flag=e,this._stat=f,null!=g?this._buffer=g:this._buffer=new b(0),this._stat.size!==this._buffer.length&&this._flag.isReadable())throw new Error("Invalid buffer: Buffer is "+this._buffer.length+" long, yet Stats object specifies that file is "+this._stat.size+" long.")}return d(c,a),c.prototype.isDirty=function(){return this._dirty},c.prototype.resetDirty=function(){this._dirty=!1},c.prototype.getBuffer=function(){return this._buffer},c.prototype.getStats=function(){return this._stat},c.prototype.getFlag=function(){return this._flag},c.prototype.getPath=function(){return this._path},c.prototype.getPos=function(){return this._flag.isAppendable()?this._stat.size:this._pos},c.prototype.advancePos=function(a){return this._pos+=a},c.prototype.setPos=function(a){return this._pos=a},c.prototype.sync=function(a){try{this.syncSync(),a()}catch(b){a(b)}},c.prototype.syncSync=function(){throw new f.ApiError(f.ErrorCode.ENOTSUP)},c.prototype.close=function(a){try{this.closeSync(),a()}catch(b){a(b)}},c.prototype.closeSync=function(){throw new f.ApiError(f.ErrorCode.ENOTSUP)},c.prototype.stat=function(a){try{a(null,this._stat.clone())}catch(b){a(b)}},c.prototype.statSync=function(){return this._stat.clone()},c.prototype.truncate=function(a,b){try{this.truncateSync(a),this._flag.isSynchronous()&&!g.getRootFS().supportsSynch()&&this.sync(b),b()}catch(c){return b(c)}},c.prototype.truncateSync=function(a){if(this._dirty=!0,!this._flag.isWriteable())throw new f.ApiError(f.ErrorCode.EPERM,"File not opened with a writeable mode.");if(this._stat.mtime=new Date,a>this._buffer.length){var c=new b(a-this._buffer.length);return c.fill(0),this.writeSync(c,0,c.length,this._buffer.length),void(this._flag.isSynchronous()&&g.getRootFS().supportsSynch()&&this.syncSync())}this._stat.size=a;var d=new b(a);this._buffer.copy(d,0,0,a),this._buffer=d,this._flag.isSynchronous()&&g.getRootFS().supportsSynch()&&this.syncSync()},c.prototype.write=function(a,b,c,d,e){try{e(null,this.writeSync(a,b,c,d),a)}catch(f){e(f)}},c.prototype.writeSync=function(a,c,d,e){if(this._dirty=!0,null==e&&(e=this.getPos()),!this._flag.isWriteable())throw new f.ApiError(f.ErrorCode.EPERM,"File not opened with a writeable mode.");var g=e+d;if(g>this._stat.size&&(this._stat.size=g,g>this._buffer.length)){var h=new b(g);this._buffer.copy(h),this._buffer=h}var i=a.copy(this._buffer,e,c,c+d);return this._stat.mtime=new Date,this._flag.isSynchronous()?(this.syncSync(),i):(this.setPos(e+i),i)},c.prototype.read=function(a,b,c,d,e){try{e(null,this.readSync(a,b,c,d),a)}catch(f){e(f)}},c.prototype.readSync=function(a,b,c,d){if(!this._flag.isReadable())throw new f.ApiError(f.ErrorCode.EPERM,"File not opened with a readable mode.");null==d&&(d=this.getPos());var e=d+c;e>this._stat.size&&(c=this._stat.size-d);var g=this._buffer.copy(a,b,d,d+c);return this._stat.atime=new Date,this._pos=d+c,g},c.prototype.chmod=function(a,b){try{this.chmodSync(a),b()}catch(c){b(c)}},c.prototype.chmodSync=function(a){if(!this._fs.supportsProps())throw new f.ApiError(f.ErrorCode.ENOTSUP);this._dirty=!0,this._stat.chmod(a),this.syncSync()},c}(e.BaseFile);c.PreloadFile=h;var i=function(a){function b(b,c,d,e,f){a.call(this,b,c,d,e,f)}return d(b,a),b.prototype.sync=function(a){a()},b.prototype.syncSync=function(){},b.prototype.close=function(a){a()},b.prototype.closeSync=function(){},b}(h);c.NoSyncFile=i}).call(this,a("bfs-buffer").Buffer)},{"../core/api_error":49,"../core/file":52,"../core/node_fs":56,"bfs-buffer":2}],64:[function(a,b,c){(function(b){function d(a){for(var b=IEBinaryToArray_ByteStr(a),c=IEBinaryToArray_ByteStr_Last(a),d=b.replace(/[\s\S]/g,function(a){var b=a.charCodeAt(0);return String.fromCharCode(255&b,b>>8)})+c,e=new Array(d.length),f=0;fg;g++)a.call(e,c[g])&&h.push(c[g]);return h}}()),"b"!=="ab".substr(-1)&&(String.prototype.substr=function(a){return function(b,c){return 0>b&&(b=this.length+b),a.call(this,b,c)}}(String.prototype.substr)),Array.prototype.forEach||(Array.prototype.forEach=function(a,b){for(var c=0;c>>0;if("function"!=typeof a)throw new TypeError;for(var d=[],e=arguments.length>=2?arguments[1]:void 0,f=0;c>f;f++)if(f in b){var g=b[f];a.call(e,g,f,b)&&d.push(g)}return 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e=d;c>e;e++)if(this[e]===a)return e;return-1}),Array.prototype.forEach||(Array.prototype.forEach=function(a,b){var c,d;for(c=0,d=this.length;d>c;++c)c in this&&a.call(b,this[c],c,this)}),Array.prototype.map||(Array.prototype.map=function(a,b){var c,d,e;if(null==this)throw new TypeError(" this is null or not defined");var f=Object(this),g=f.length>>>0;if("function"!=typeof a)throw new TypeError(a+" is not a function");for(b&&(c=b),d=new Array(g),e=0;g>e;){var h,i;e in f&&(h=f[e],i=a.call(c,h,e,f),d[e]=i),e++}return d}),"undefined"!=typeof document&&"undefined"!=typeof window&&void 0===window.chrome&&document.write("\r\n\r\n");var k=a("./core/browserfs");b.exports=k},{"./core/browserfs":51,"./core/global":55}]},{},[47])(47)}); //# sourceMappingURL=browserfs.min.js.map \ No newline at end of file