1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "base/at_exit.h"
6 #include "base/command_line.h"
7 #include "base/strings/utf_string_conversions.h"
8 #include "tools/gn/commands.h"
9 #include "tools/gn/err.h"
10 #include "tools/gn/location.h"
11 #include "tools/gn/standard_out.h"
13 // Only the GN-generated build makes this header for now.
14 // TODO(brettw) consider adding this if we need it in GYP.
16 #include "build/util/last_change.h"
18 #define LAST_CHANGE "UNKNOWN"
23 std::vector<std::string> GetArgs(const CommandLine& cmdline) {
24 CommandLine::StringVector in_args = cmdline.GetArgs();
26 std::vector<std::string> out_args;
27 for (size_t i = 0; i < in_args.size(); i++)
28 out_args.push_back(base::WideToUTF8(in_args[i]));
37 int main(int argc, char** argv) {
38 base::AtExitManager at_exit;
40 CommandLine::set_slash_is_not_a_switch();
42 CommandLine::Init(argc, argv);
44 const CommandLine& cmdline = *CommandLine::ForCurrentProcess();
45 std::vector<std::string> args = GetArgs(cmdline);
48 if (cmdline.HasSwitch("help") || cmdline.HasSwitch("h")) {
49 // Make "-h" and "--help" default to help command.
50 command = commands::kHelp;
51 } else if (cmdline.HasSwitch("version")) {
52 // Make "--version" print the version and exit.
53 OutputString(std::string(LAST_CHANGE) + "\n");
55 } else if (args.empty()) {
56 command = commands::kGen;
59 args.erase(args.begin());
62 const commands::CommandInfoMap& command_map = commands::GetCommands();
63 commands::CommandInfoMap::const_iterator found_command =
64 command_map.find(command);
67 if (found_command != command_map.end()) {
68 retval = found_command->second.runner(args);
71 "Command \"" + command + "\" unknown.").PrintToStdout();
72 commands::RunHelp(std::vector<std::string>());
76 exit(retval); // Don't free memory, it can be really slow!