539 lines
12 KiB
C++
539 lines
12 KiB
C++
// Copyright (C) 2003-2008 Dolphin Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official SVN repository and contact information can be found at
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// http://code.google.com/p/dolphin-emu/
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#include "Common.h"
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#include "FileUtil.h"
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#ifdef _WIN32
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#include <windows.h>
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#include <shlobj.h> // for SHGetFolderPath
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#include <shellapi.h>
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#include <commdlg.h> // for GetSaveFileName
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#include <io.h>
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#include <direct.h> // getcwd
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#else
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#include <sys/types.h>
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#include <dirent.h>
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#include <errno.h>
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#include <stdlib.h>
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#endif
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#include <fstream>
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#include <sys/stat.h>
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#ifndef S_ISDIR
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#define S_ISDIR(m) (((m)&S_IFMT) == S_IFDIR)
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#endif
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namespace File
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{
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// =======================================================
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// Remove any ending forward slashes from directory paths
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// -------------
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inline void StripTailDirSlashes(std::string& fname)
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{
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// Make sure it's not a blank string
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if(fname.length() > 0)
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{
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while(fname.at(fname.length() - 1) == DIR_SEP_CHR)
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fname.resize(fname.length() - 1);
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}
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}
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// =============
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bool Exists(const char *filename)
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{
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struct stat file_info;
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std::string copy = filename;
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StripTailDirSlashes(copy);
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int result = stat(copy.c_str(), &file_info);
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return (result == 0);
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}
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bool IsDirectory(const char *filename)
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{
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struct stat file_info;
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std::string copy = filename;
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StripTailDirSlashes(copy);
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int result = stat(copy.c_str(), &file_info);
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if (result == 0)
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return S_ISDIR(file_info.st_mode);
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else
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return false;
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}
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bool Delete(const char *filename)
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{
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if (!Exists(filename))
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return false;
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if (IsDirectory(filename))
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return false;
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#ifdef _WIN32
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DeleteFile(filename);
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#else
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unlink(filename);
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#endif
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return true;
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}
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std::string SanitizePath(const char *filename)
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{
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std::string copy = filename;
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#ifdef _WIN32
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for (size_t i = 0; i < copy.size(); i++)
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if (copy[i] == '/')
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copy[i] = '\\';
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#else
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// Should we do the otherway around?
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#endif
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return copy;
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}
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void Launch(const char *filename)
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{
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#ifdef _WIN32
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std::string win_filename = SanitizePath(filename);
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SHELLEXECUTEINFO shex = { sizeof(shex) };
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shex.fMask = SEE_MASK_NO_CONSOLE; // | SEE_MASK_ASYNC_OK;
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shex.lpVerb = "open";
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shex.lpFile = win_filename.c_str();
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shex.nShow = SW_SHOWNORMAL;
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ShellExecuteEx(&shex);
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#else
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// TODO: Insert GNOME/KDE code here.
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#endif
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}
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void Explore(const char *path)
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{
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#ifdef _WIN32
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std::string win_path = SanitizePath(path);
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SHELLEXECUTEINFO shex = { sizeof(shex) };
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shex.fMask = SEE_MASK_NO_CONSOLE; // | SEE_MASK_ASYNC_OK;
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shex.lpVerb = "explore";
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shex.lpFile = win_path.c_str();
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shex.nShow = SW_SHOWNORMAL;
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ShellExecuteEx(&shex);
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#else
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// TODO: Insert GNOME/KDE code here.
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#endif
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}
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// Returns true if successful, or path already exists.
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bool CreateDir(const char *path)
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{
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#ifdef _WIN32
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if (::CreateDirectory(path, NULL))
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return true;
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DWORD error = GetLastError();
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if (error == ERROR_ALREADY_EXISTS)
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{
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// PanicAlert("%s already exists", path);
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return true;
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}
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PanicAlert("Error creating directory %s: %i", path, error);
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return false;
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#else
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if (mkdir(path, 0755) == 0)
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return true;
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int err = errno;
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if (err == EEXIST)
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{
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// PanicAlert("%s already exists", path);
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return true;
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}
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PanicAlert("Error creating directory %s: %s", path, strerror(err));
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return false;
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#endif
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}
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// Create several dirs
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bool CreateDirectoryStructure(const std::string& _rFullPath)
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{
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int PanicCounter = 10;
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size_t Position = 0;
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while(true)
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{
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// Find next sub path, support both \ and / directory separators
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{
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size_t nextPosition = _rFullPath.find(DIR_SEP_CHR, Position);
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Position = nextPosition;
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if (Position == std::string::npos)
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return true;
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Position++;
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}
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// Create next sub path
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std::string SubPath = _rFullPath.substr(0, Position);
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if (!SubPath.empty())
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{
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if (!File::IsDirectory(SubPath.c_str()))
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{
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File::CreateDir(SubPath.c_str());
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LOG(WII_IPC_FILEIO, " CreateSubDir %s", SubPath.c_str());
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}
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}
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// A safety check
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PanicCounter--;
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if (PanicCounter <= 0)
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{
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PanicAlert("CreateDirectoryStruct creates way to much dirs...");
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return false;
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}
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}
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}
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bool DeleteDir(const char *filename)
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{
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if (!File::IsDirectory(filename))
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return false;
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#ifdef _WIN32
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return ::RemoveDirectory (filename) ? true : false;
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#else
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if (rmdir(filename) == 0)
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return true;
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int err = errno;
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PanicAlert("Error removing directory %s",strerror(err));
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return false;
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#endif
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}
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bool Rename(const char *srcFilename, const char *destFilename)
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{
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return (rename(srcFilename, destFilename) == 0);
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}
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bool Copy(const char *srcFilename, const char *destFilename)
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{
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#ifdef _WIN32
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return (CopyFile(srcFilename, destFilename, FALSE) == TRUE) ? true : false;
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#else
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#define BSIZE 1024
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int rnum, wnum, err;
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char buffer[BSIZE];
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FILE *output, *input;
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if (! (input = fopen(srcFilename, "r"))) {
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err = errno;
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PanicAlert("Error copying from %s: %s", srcFilename, strerror(err));
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return false;
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}
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if (! (output = fopen(destFilename, "w"))) {
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err = errno;
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PanicAlert("Error copying to %s: %s", destFilename, strerror(err));
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return false;
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}
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while(! feof(input)) {
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if((rnum = fread(buffer, sizeof(char), BSIZE, input)) != BSIZE) {
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if(ferror(input) != 0){
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PanicAlert("can't read source file\n");
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return false;
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}
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}
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if((wnum = fwrite(buffer, sizeof(char), rnum, output))!= rnum){
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PanicAlert("can't write output file\n");
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return false;
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}
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}
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fclose(input);
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fclose(output);
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return true;
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/*
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std::ifstream ifs(srcFilename, std::ios::binary);
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std::ofstream ofs(destFilename, std::ios::binary);
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ofs << ifs.rdbuf();
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ifs.close();
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ofs.close();
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return true;*/
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#endif
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}
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std::string GetUserDirectory()
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{
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char path[MAX_PATH];
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#ifdef _WIN32
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if (SUCCEEDED(SHGetFolderPath(NULL, CSIDL_COMMON_APPDATA, NULL, 0, path)))
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{
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//return std::string(path);
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/* I dont understand this, I got "E:\Documents and Settings\All Users\Application Data"
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from this */
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return std::string("");
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}
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return std::string("");
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#else
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char *homedir = getenv("HOME");
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if (!homedir)
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return std::string("");
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#ifdef __APPLE__
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snprintf(path, sizeof(path), "%s/Library/Application Support/Dolphin", homedir);
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#else
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snprintf(path, sizeof(path), "%s/.dolphin", homedir); // XXX changeme as appropriate
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#endif
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#endif
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return std::string(path);
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}
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u64 GetSize(const char *filename)
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{
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if (!Exists(filename))
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return 0;
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#ifdef _WIN32
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// stat doesn't support 64-bit file sizes on Win32.
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FILE *pFile = fopen(filename, "rb");
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if (pFile)
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{
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fseek(pFile, 0, SEEK_END);
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u64 pos = ftell(pFile);
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fclose(pFile);
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return pos;
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}
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#else
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struct stat buf;
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if (stat(filename, &buf) == 0) {
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return buf.st_size;
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}
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int err = errno;
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PanicAlert("Error accessing %s: %s", filename, strerror(err));
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#endif
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return 0;
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}
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#ifdef _WIN32
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static bool ReadFoundFile(const WIN32_FIND_DATA& ffd, FSTEntry& entry)
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{
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// ignore files starting with a .
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if(strncmp(ffd.cFileName, ".", 1) == 0)
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return false;
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entry.virtualName = ffd.cFileName;
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if(ffd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
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{
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entry.isDirectory = true;
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}
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else
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{
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entry.isDirectory = false;
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entry.size = ffd.nFileSizeLow;
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}
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return true;
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}
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u32 ScanDirectoryTree(const std::string& _Directory, FSTEntry& parentEntry)
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{
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// Find the first file in the directory.
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WIN32_FIND_DATA ffd;
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std::string searchName = _Directory + "\\*";
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HANDLE hFind = FindFirstFile(searchName.c_str(), &ffd);
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u32 foundEntries = 0;
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if (hFind != INVALID_HANDLE_VALUE)
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{
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do
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{
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FSTEntry entry;
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if(ReadFoundFile(ffd, entry))
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{
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entry.physicalName = _Directory + "\\" + entry.virtualName;
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if(entry.isDirectory)
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{
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u32 childEntries = ScanDirectoryTree(entry.physicalName, entry);
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entry.size = childEntries;
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foundEntries += childEntries;
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}
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++foundEntries;
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parentEntry.children.push_back(entry);
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}
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} while (FindNextFile(hFind, &ffd) != 0);
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}
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FindClose(hFind);
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return foundEntries;
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}
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#else
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u32 ScanDirectoryTree(const std::string& _Directory, FSTEntry& parentEntry)
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{
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u32 foundEntries = 0;
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struct dirent dirent, *result = NULL;
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// Find the first file in the directory.
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DIR *dirp = opendir(_Directory.c_str());
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while (!readdir_r(dirp, &dirent, &result) && result) {
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FSTEntry entry;
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if (result->d_name[0]=='.') continue;
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entry.virtualName = result->d_name;
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entry.physicalName = _Directory + "/" + entry.virtualName;
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if (IsDirectory(entry.physicalName.c_str())) {
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entry.isDirectory = true;
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entry.size = ScanDirectoryTree(entry.physicalName, entry);
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foundEntries += entry.size;
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} else {
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entry.isDirectory = false;
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entry.size = GetSize(entry.physicalName.c_str());
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}
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++foundEntries;
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parentEntry.children.push_back(entry);
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}
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closedir(dirp);
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return foundEntries;
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}
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#endif
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bool CreateEmptyFile(const char *filename)
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{
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FILE* pFile = fopen(filename, "wb");
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if (pFile == NULL)
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return false;
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fclose(pFile);
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return true;
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}
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bool DeleteDirRecursively(const std::string& _Directory)
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{
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#ifdef _WIN32
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bool Result = false;
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WIN32_FIND_DATA ffd;
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std::string searchName = _Directory + "\\*";
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HANDLE hFind = FindFirstFile(searchName.c_str(), &ffd);
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if (hFind != INVALID_HANDLE_VALUE)
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{
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do
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{
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// check for "." and ".."
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if (((ffd.cFileName[0] == '.') && (ffd.cFileName[1] == 0x00)) ||
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((ffd.cFileName[0] == '.') && (ffd.cFileName[1] == '.') && (ffd.cFileName[2] == 0x00)))
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continue;
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// build path
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std::string newPath(_Directory);
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newPath += '\\';
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newPath += ffd.cFileName;
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if (ffd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
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{
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if (!File::DeleteDirRecursively(newPath))
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goto error_jmp;
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}
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else
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{
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if (!File::Delete(newPath.c_str()))
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goto error_jmp;
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}
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} while (FindNextFile(hFind, &ffd) != 0);
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}
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if (!File::DeleteDir(_Directory.c_str()))
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goto error_jmp;
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Result = true;
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error_jmp:
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FindClose(hFind);
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return Result;
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#else
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// taken from http://www.dreamincode.net/code/snippet2700.htm
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DIR *pdir = NULL;
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pdir = opendir (_Directory.c_str());
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struct dirent *pent = NULL;
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if (pdir == NULL) {
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return false;
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}
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char file[256];
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int counter = 1;
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while ((pent = readdir(pdir))) {
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if (counter > 2) {
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for (int i = 0; i < 256; i++) file[i] = '\0';
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strcat(file, _Directory.c_str());
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if (pent == NULL) {
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return false;
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}
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strcat(file, pent->d_name);
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if (IsDirectory(file) == true) {
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DeleteDir(file);
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} else {
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remove(file);
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}
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}
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counter++;
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}
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return DeleteDir(_Directory.c_str());
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#endif
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}
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void GetCurrentDirectory(std::string& _rDirectory)
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{
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char tmpBuffer[MAX_PATH+1];
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_rDirectory = getcwd(tmpBuffer, MAX_PATH);
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}
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} // namespace
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