83 lines
2.4 KiB
C++
83 lines
2.4 KiB
C++
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// Copyright (c) 2013 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "base/atomicops.h"
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#include "base/bind.h"
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#include "base/command_line.h"
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#include "base/strings/string_number_conversions.h"
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#include "base/time/time.h"
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#include "tools/gn/build_settings.h"
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#include "tools/gn/commands.h"
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#include "tools/gn/ninja_target_writer.h"
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#include "tools/gn/ninja_writer.h"
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#include "tools/gn/scheduler.h"
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#include "tools/gn/setup.h"
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#include "tools/gn/standard_out.h"
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namespace commands {
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namespace {
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// Suppress output on success.
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const char kSwitchQuiet[] = "q";
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void TargetResolvedCallback(base::subtle::Atomic32* write_counter,
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const Target* target) {
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base::subtle::NoBarrier_AtomicIncrement(write_counter, 1);
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NinjaTargetWriter::RunAndWriteFile(target);
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}
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} // namespace
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const char kGen[] = "gen";
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const char kGen_HelpShort[] =
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"gen: Generate ninja files.";
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const char kGen_Help[] =
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"gn gen\n"
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" Generates ninja files from the current tree.\n"
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"\n"
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" See \"gn help\" for the common command-line switches.\n";
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int RunGen(const std::vector<std::string>& args) {
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base::TimeTicks begin_time = base::TimeTicks::Now();
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// Deliberately leaked to avoid expensive process teardown.
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Setup* setup = new Setup;
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if (!setup->DoSetup())
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return 1;
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// Cause the load to also generate the ninja files for each target. We wrap
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// the writing to maintain a counter.
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base::subtle::Atomic32 write_counter = 0;
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setup->build_settings().set_target_resolved_callback(
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base::Bind(&TargetResolvedCallback, &write_counter));
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// Do the actual load. This will also write out the target ninja files.
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if (!setup->Run())
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return 1;
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// Write the root ninja files.
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if (!NinjaWriter::RunAndWriteFiles(&setup->build_settings()))
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return 1;
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base::TimeTicks end_time = base::TimeTicks::Now();
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if (!CommandLine::ForCurrentProcess()->HasSwitch(kSwitchQuiet)) {
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OutputString("Done. ", DECORATION_GREEN);
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std::string stats = "Wrote " +
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base::IntToString(static_cast<int>(write_counter)) +
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" targets from " +
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base::IntToString(
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setup->scheduler().input_file_manager()->GetInputFileCount()) +
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" files in " +
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base::IntToString((end_time - begin_time).InMilliseconds()) + "ms\n";
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OutputString(stats);
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}
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return 0;
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}
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} // namespace commands
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