src/tools/gn/gyp_target_writer.cc

   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 "tools/gn/gyp_target_writer.h"
   6
   7 #include <iostream>
   8
   9 #include "base/file_util.h"
  10 #include "base/files/file_path.h"
  11 #include "tools/gn/build_settings.h"
  12 #include "tools/gn/filesystem_utils.h"
  13 #include "tools/gn/gyp_binary_target_writer.h"
  14 #include "tools/gn/scheduler.h"
  15 #include "tools/gn/settings.h"
  16 #include "tools/gn/target.h"
  17
  18 GypTargetWriter::GypTargetWriter(const Target* target, std::ostream& out)
  19     : settings_(target->settings()),
  20       target_(target),
  21       out_(out) {
  22 }
  23
  24 GypTargetWriter::~GypTargetWriter() {
  25 }
  26
  27 // static
  28 void GypTargetWriter::WriteFile(const SourceFile& gyp_file,
  29                                 const std::vector<TargetGroup>& targets,
  30                                 Err* err) {
  31   if (targets.empty())
  32     return;
  33   const BuildSettings* debug_build_settings =
  34       targets[0].debug->settings()->build_settings();
  35
  36   std::stringstream file;
  37   file << "# Generated by GN. Do not edit.\n\n";
  38   file << "{\n";
  39   file << "  'skip_includes': 1,\n";
  40
  41   if (targets[0].debug->settings()->IsMac()) {
  42     // Global settings for make/ninja. This must match common.gypi :(
  43     file << "  'make_global_settings': [\n";
  44     file << "    ['CC', 'third_party/llvm-build/Release+Asserts/bin/clang'],\n";
  45     file <<
  46         "    ['CXX', 'third_party/llvm-build/Release+Asserts/bin/clang++'],\n";
  47     file << "    ['CC.host', '$(CC)'],\n";
  48     file << "    ['CXX.host', '$(CXX)'],\n";
  49     file << "  ],\n";
  50   }
  51   // TODO(brettw) android.
  52
  53   file << "  'targets': [\n";
  54
  55   for (size_t i = 0; i < targets.size(); i++) {
  56     switch (targets[i].debug->output_type()) {
  57       case Target::COPY_FILES:
  58       case Target::CUSTOM:
  59       case Target::GROUP:
  60         break;  // TODO(brettw)
  61       case Target::EXECUTABLE:
  62       case Target::STATIC_LIBRARY:
  63       case Target::SHARED_LIBRARY:
  64       case Target::SOURCE_SET: {
  65         GypBinaryTargetWriter writer(targets[i], file);
  66         writer.Run();
  67         break;
  68       }
  69       default:
  70         CHECK(0);
  71     }
  72   }
  73
  74   file << "  ],\n}\n";
  75
  76   base::FilePath gyp_file_path = debug_build_settings->GetFullPath(gyp_file);
  77   std::string contents = file.str();
  78   file_util::WriteFile(gyp_file_path, contents.c_str(),
  79                        static_cast<int>(contents.size()));
  80 }
  81