| // 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/atomicops.h" |
| #include "base/bind.h" |
| #include "base/command_line.h" |
| #include "base/strings/string_number_conversions.h" |
| #include "base/time/time.h" |
| #include "tools/gn/build_settings.h" |
| #include "tools/gn/commands.h" |
| #include "tools/gn/ninja_target_writer.h" |
| #include "tools/gn/ninja_writer.h" |
| #include "tools/gn/scheduler.h" |
| #include "tools/gn/setup.h" |
| #include "tools/gn/standard_out.h" |
| |
| namespace commands { |
| |
| namespace { |
| |
| // Suppress output on success. |
| const char kSwitchQuiet[] = "q"; |
| |
| void TargetResolvedCallback(base::subtle::Atomic32* write_counter, |
| const Target* target) { |
| base::subtle::NoBarrier_AtomicIncrement(write_counter, 1); |
| NinjaTargetWriter::RunAndWriteFile(target); |
| } |
| |
| } // namespace |
| |
| const char kGen[] = "gen"; |
| const char kGen_HelpShort[] = |
| "gen: Generate ninja files."; |
| const char kGen_Help[] = |
| "gn gen\n" |
| " Generates ninja files from the current tree.\n" |
| "\n" |
| " See \"gn help\" for the common command-line switches.\n"; |
| |
| int RunGen(const std::vector<std::string>& args) { |
| base::TimeTicks begin_time = base::TimeTicks::Now(); |
| |
| // Deliberately leaked to avoid expensive process teardown. |
| Setup* setup = new Setup; |
| if (!setup->DoSetup()) |
| return 1; |
| |
| // Cause the load to also generate the ninja files for each target. We wrap |
| // the writing to maintain a counter. |
| base::subtle::Atomic32 write_counter = 0; |
| setup->build_settings().set_target_resolved_callback( |
| base::Bind(&TargetResolvedCallback, &write_counter)); |
| |
| // Do the actual load. This will also write out the target ninja files. |
| if (!setup->Run()) |
| return 1; |
| |
| // Write the root ninja files. |
| if (!NinjaWriter::RunAndWriteFiles(&setup->build_settings())) |
| return 1; |
| |
| base::TimeTicks end_time = base::TimeTicks::Now(); |
| |
| if (!CommandLine::ForCurrentProcess()->HasSwitch(kSwitchQuiet)) { |
| OutputString("Done. ", DECORATION_GREEN); |
| |
| std::string stats = "Wrote " + |
| base::IntToString(static_cast<int>(write_counter)) + |
| " targets from " + |
| base::IntToString( |
| setup->scheduler().input_file_manager()->GetInputFileCount()) + |
| " files in " + |
| base::IntToString((end_time - begin_time).InMilliseconds()) + "ms\n"; |
| OutputString(stats); |
| } |
| |
| return 0; |
| } |
| |
| } // namespace commands |