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// 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 <algorithm>
#include <string>
#include "base/command_line.h"
#include "base/strings/utf_string_conversions.h"
#include "gn/commands.h"
#include "gn/err.h"
#include "gn/location.h"
#include "gn/standard_out.h"
#include "gn/switches.h"
#include "util/build_config.h"
#include "util/msg_loop.h"
#include "util/sys_info.h"
#include "qt_version.h"
namespace {
std::vector<std::string> GetArgs(const base::CommandLine& cmdline) {
base::CommandLine::StringVector in_args = cmdline.GetArgs();
#if defined(OS_WIN)
std::vector<std::string> out_args;
for (const auto& arg : in_args)
out_args.push_back(base::UTF16ToUTF8(arg));
return out_args;
#else
return in_args;
#endif
}
} // namespace
int main(int argc, char** argv) {
#if defined(OS_WIN)
base::CommandLine::set_slash_is_not_a_switch();
#endif
base::CommandLine::Init(argc, argv);
const base::CommandLine& cmdline = *base::CommandLine::ForCurrentProcess();
std::vector<std::string> args = GetArgs(cmdline);
std::string command;
if (cmdline.HasSwitch("help") || cmdline.HasSwitch("h")) {
// Make "-h" and "--help" default to help command.
command = commands::kHelp;
} else if (cmdline.HasSwitch(switches::kVersion)) {
// Make "--version" print the version and exit.
OutputString(std::string(QT_GN_VERSION) +"\n");
exit(0);
} else if (args.empty()) {
// No command, print error and exit.
Err(Location(), "No command specified.",
"Most commonly you want \"gn gen <out_dir>\" to make a build dir.\n"
"Or try \"gn help\" for more commands.")
.PrintToStdout();
return 1;
} 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()) {
MsgLoop msg_loop;
retval = found_command->second.runner(args);
} else {
Err(Location(), "Command \"" + command + "\" unknown.").PrintToStdout();
OutputString(
"Available commands (type \"gn help <command>\" for more details):\n");
for (const auto& cmd : commands::GetCommands())
PrintShortHelp(cmd.second.help_short);
retval = 1;
}
exit(retval); // Don't free memory, it can be really slow!
}
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