dolphin/Source/Core/MacUpdater/AppDelegate.mm

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// Copyright 2019 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#import "AppDelegate.h"
#include "Common/FileUtil.h"
#include "UpdaterCommon/UI.h"
#include "UpdaterCommon/UpdaterCommon.h"
#include <Cocoa/Cocoa.h>
#include <OptionParser.h>
#include <optional>
#include <unistd.h>
#include <vector>
namespace
{
struct Options
{
std::string this_manifest_url;
std::string next_manifest_url;
std::string content_store_url;
std::string install_base_path;
std::optional<std::string> binary_to_restart;
std::optional<pid_t> parent_pid;
std::optional<std::string> log_file;
};
std::optional<Options> ParseCommandLine(std::vector<std::string>& args)
{
using optparse::OptionParser;
OptionParser parser =
OptionParser().prog("Dolphin Updater").description("Dolphin Updater binary");
parser.add_option("--this-manifest-url")
.dest("this-manifest-url")
.help("URL to the update manifest for the currently installed version.")
.metavar("URL");
parser.add_option("--next-manifest-url")
.dest("next-manifest-url")
.help("URL to the update manifest for the to-be-installed version.")
.metavar("URL");
parser.add_option("--content-store-url")
.dest("content-store-url")
.help("Base URL of the content store where files to download are stored.")
.metavar("URL");
parser.add_option("--install-base-path")
.dest("install-base-path")
.help("Base path of the Dolphin install to be updated.")
.metavar("PATH");
parser.add_option("--binary-to-restart")
.dest("binary-to-restart")
.help("Binary to restart after the update is over.")
.metavar("PATH");
parser.add_option("--log-file")
.dest("log-file")
.help("File where to log updater debug output.")
.metavar("PATH");
parser.add_option("--parent-pid")
.dest("parent-pid")
.type("int")
.help("(optional) PID of the parent process. The updater will wait for this process to "
"complete before proceeding.")
.metavar("PID");
optparse::Values options = parser.parse_args(args);
Options opts;
// Required arguments.
std::vector<std::string> required{"this-manifest-url", "next-manifest-url", "content-store-url",
"install-base-path"};
for (const auto& req : required)
{
if (!options.is_set(req))
{
parser.print_help();
return {};
}
}
opts.this_manifest_url = options["this-manifest-url"];
opts.next_manifest_url = options["next-manifest-url"];
opts.content_store_url = options["content-store-url"];
opts.install_base_path = options["install-base-path"];
// Optional arguments.
if (options.is_set("binary-to-restart"))
opts.binary_to_restart = options["binary-to-restart"];
if (options.is_set("parent-pid"))
opts.parent_pid = (pid_t)options.get("parent-pid");
if (options.is_set("log-file"))
opts.log_file = options["log-file"];
return opts;
}
} // namespace
@interface AppDelegate ()
@end
@implementation AppDelegate
- (void)applicationDidFinishLaunching:(NSNotification*)aNotification
{
UI::SetVisible(false);
NSArray* arguments = [[NSProcessInfo processInfo] arguments];
__block std::vector<std::string> args;
[arguments
enumerateObjectsUsingBlock:^(NSString* _Nonnull obj, NSUInteger idx, BOOL* _Nonnull stop) {
args.push_back(std::string([obj UTF8String]));
}];
std::optional<Options> maybe_opts = ParseCommandLine(args);
if (!maybe_opts)
{
[NSApp terminate:nil];
return;
}
Options opts = std::move(*maybe_opts);
dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0ul);
dispatch_async(queue, ^{
if (opts.log_file)
{
log_fp = fopen(opts.log_file.value().c_str(), "w");
if (!log_fp)
log_fp = stderr;
else
atexit(FlushLog);
}
fprintf(log_fp, "Updating from: %s\n", opts.this_manifest_url.c_str());
fprintf(log_fp, "Updating to: %s\n", opts.next_manifest_url.c_str());
fprintf(log_fp, "Install path: %s\n", opts.install_base_path.c_str());
if (!File::IsDirectory(opts.install_base_path))
{
FatalError("Cannot find install base path, or not a directory.");
[NSApp performSelector:@selector(terminate:) withObject:nil afterDelay:0.0];
return;
}
if (opts.parent_pid)
{
UI::SetDescription("Waiting for Dolphin to quit...");
fprintf(log_fp, "Waiting for parent PID %d to complete...\n", *opts.parent_pid);
auto pid = opts.parent_pid.value();
for (int res = kill(pid, 0); res == 0 || (res < 0 && errno == EPERM); res = kill(pid, 0))
{
sleep(1);
}
fprintf(log_fp, "Completed! Proceeding with update.\n");
}
UI::SetVisible(true);
UI::SetDescription("Fetching and parsing manifests...");
Manifest this_manifest, next_manifest;
{
std::optional<Manifest> maybe_manifest = FetchAndParseManifest(opts.this_manifest_url);
if (!maybe_manifest)
{
FatalError("Could not fetch current manifest. Aborting.");
return;
}
this_manifest = std::move(*maybe_manifest);
maybe_manifest = FetchAndParseManifest(opts.next_manifest_url);
if (!maybe_manifest)
{
FatalError("Could not fetch next manifest. Aborting.");
[NSApp performSelector:@selector(terminate:) withObject:nil afterDelay:0.0];
return;
}
next_manifest = std::move(*maybe_manifest);
}
UI::SetDescription("Computing what to do...");
TodoList todo = ComputeActionsToDo(this_manifest, next_manifest);
todo.Log();
std::optional<std::string> maybe_temp_dir = FindOrCreateTempDir(opts.install_base_path);
if (!maybe_temp_dir)
return;
std::string temp_dir = std::move(*maybe_temp_dir);
UI::SetDescription("Performing Update...");
bool ok = PerformUpdate(todo, opts.install_base_path, opts.content_store_url, temp_dir);
if (!ok)
FatalError("Failed to apply the update.");
CleanUpTempDir(temp_dir, todo);
UI::ResetCurrentProgress();
UI::ResetTotalProgress();
UI::SetCurrentMarquee(false);
UI::SetTotalMarquee(false);
UI::SetCurrentProgress(1, 1);
UI::SetTotalProgress(1, 1);
UI::SetDescription("Done!");
// Let the user process that we are done.
[NSThread sleepForTimeInterval:1.0f];
if (opts.binary_to_restart)
{
[[NSWorkspace sharedWorkspace]
launchApplication:[NSString stringWithCString:opts.binary_to_restart.value().c_str()
encoding:[NSString defaultCStringEncoding]]];
}
dispatch_sync(dispatch_get_main_queue(), ^{
[NSApp terminate:nil];
});
});
}
- (void)applicationWillTerminate:(NSNotification*)aNotification
{
}
@end