gn_main.cc revision d3868032626d59662ff73b372b5d584c1d144c53 
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.
4
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
12namespace {
13
14std::vector<std::string> GetArgs(const CommandLine& cmdline) {
15  CommandLine::StringVector in_args = cmdline.GetArgs();
16#if defined(OS_WIN)
17  std::vector<std::string> out_args;
18  for (size_t i = 0; i < in_args.size(); i++)
19    out_args.push_back(base::WideToUTF8(in_args[i]));
20  return out_args;
21#else
22  return in_args;
23#endif
24}
25
26}  // namespace
27
28int main(int argc, char** argv) {
29  base::AtExitManager at_exit;
30  CommandLine::Init(argc, argv);
31
32  std::vector<std::string> args = GetArgs(*CommandLine::ForCurrentProcess());
33
34  std::string command;
35  if (args.empty()) {
36    command = "gen";
37  } else {
38    command = args[0];
39    args.erase(args.begin());
40  }
41
42  int retval = 0;
43  if (command == "gen") {
44    retval = RunGenCommand(args);
45  } else if (command == "desc" || command == "wtf") {
46    retval = RunDescCommand(args);
47  } else if (command == "deps") {
48    retval = RunDepsCommand(args);
49  } else if (command == "tree") {
50    retval = RunTreeCommand(args);
51  } else {
52    Err(Location(),
53        "Command \"" + command + "\" unknown.").PrintToStdout();
54    retval = 1;
55  }
56
57  exit(retval);  // Don't free memory, it can be really slow!
58  return retval;
59}
60