shaka-packager/tools/gn/gn_main.cc

63 lines
1.7 KiB
C++

// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/at_exit.h"
#include "base/command_line.h"
#include "base/strings/utf_string_conversions.h"
#include "tools/gn/commands.h"
#include "tools/gn/err.h"
#include "tools/gn/location.h"
namespace {
std::vector<std::string> GetArgs(const CommandLine& cmdline) {
CommandLine::StringVector in_args = cmdline.GetArgs();
#if defined(OS_WIN)
std::vector<std::string> out_args;
for (size_t i = 0; i < in_args.size(); i++)
out_args.push_back(base::WideToUTF8(in_args[i]));
return out_args;
#else
return in_args;
#endif
}
} // namespace
int main(int argc, char** argv) {
base::AtExitManager at_exit;
CommandLine::Init(argc, argv);
const CommandLine& cmdline = *CommandLine::ForCurrentProcess();
std::vector<std::string> args = GetArgs(cmdline);
std::string command;
if (cmdline.HasSwitch("help")) {
// Make "--help" default to help command.
command = commands::kHelp;
} else if (args.empty()) {
command = commands::kGen;
} else {
command = args[0];
args.erase(args.begin());
}
const commands::CommandInfoMap& command_map = commands::GetCommands();
commands::CommandInfoMap::const_iterator found_command =
command_map.find(command);
int retval;
if (found_command != command_map.end()) {
retval = found_command->second.runner(args);
} else {
Err(Location(),
"Command \"" + command + "\" unknown.").PrintToStdout();
commands::RunHelp(std::vector<std::string>());
retval = 1;
}
exit(retval); // Don't free memory, it can be really slow!
return retval;
}