| // 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 "tools/gn/ninja_toolchain_writer.h" |
| |
| #include <fstream> |
| |
| #include "base/file_util.h" |
| #include "base/strings/stringize_macros.h" |
| #include "tools/gn/build_settings.h" |
| #include "tools/gn/settings.h" |
| #include "tools/gn/target.h" |
| #include "tools/gn/toolchain.h" |
| #include "tools/gn/trace.h" |
| |
| NinjaToolchainWriter::NinjaToolchainWriter( |
| const Settings* settings, |
| const Toolchain* toolchain, |
| const std::vector<const Target*>& targets, |
| std::ostream& out) |
| : settings_(settings), |
| toolchain_(toolchain), |
| targets_(targets), |
| out_(out), |
| path_output_(settings_->build_settings()->build_dir(), ESCAPE_NINJA), |
| helper_(settings->build_settings()) { |
| } |
| |
| NinjaToolchainWriter::~NinjaToolchainWriter() { |
| } |
| |
| void NinjaToolchainWriter::Run() { |
| WriteRules(); |
| WriteSubninjas(); |
| } |
| |
| // static |
| bool NinjaToolchainWriter::RunAndWriteFile( |
| const Settings* settings, |
| const Toolchain* toolchain, |
| const std::vector<const Target*>& targets) { |
| NinjaHelper helper(settings->build_settings()); |
| base::FilePath ninja_file(settings->build_settings()->GetFullPath( |
| helper.GetNinjaFileForToolchain(settings).GetSourceFile( |
| settings->build_settings()))); |
| ScopedTrace trace(TraceItem::TRACE_FILE_WRITE, FilePathToUTF8(ninja_file)); |
| |
| base::CreateDirectory(ninja_file.DirName()); |
| |
| std::ofstream file; |
| file.open(FilePathToUTF8(ninja_file).c_str(), |
| std::ios_base::out | std::ios_base::binary); |
| if (file.fail()) |
| return false; |
| |
| NinjaToolchainWriter gen(settings, toolchain, targets, file); |
| gen.Run(); |
| return true; |
| } |
| |
| void NinjaToolchainWriter::WriteRules() { |
| std::string indent(" "); |
| |
| NinjaHelper helper(settings_->build_settings()); |
| std::string rule_prefix = helper.GetRulePrefix(settings_); |
| |
| for (int i = Toolchain::TYPE_NONE + 1; i < Toolchain::TYPE_NUMTYPES; i++) { |
| Toolchain::ToolType tool_type = static_cast<Toolchain::ToolType>(i); |
| const Toolchain::Tool& tool = toolchain_->GetTool(tool_type); |
| if (tool.command.empty()) |
| continue; |
| |
| out_ << "rule " << rule_prefix << Toolchain::ToolTypeToName(tool_type) |
| << std::endl; |
| |
| #define WRITE_ARG(name) \ |
| if (!tool.name.empty()) \ |
| out_ << indent << " " STRINGIZE(name) " = " << tool.name << std::endl; |
| WRITE_ARG(command); |
| WRITE_ARG(depfile); |
| WRITE_ARG(description); |
| WRITE_ARG(pool); |
| WRITE_ARG(restat); |
| WRITE_ARG(rspfile); |
| WRITE_ARG(rspfile_content); |
| #undef WRITE_ARG |
| |
| // Deps is called "depsformat" in GN to avoid confusion with dependencies. |
| if (!tool.depsformat.empty()) \ |
| out_ << indent << " deps = " << tool.depsformat << std::endl; |
| } |
| out_ << std::endl; |
| } |
| |
| void NinjaToolchainWriter::WriteSubninjas() { |
| // Write subninja commands for each generated target. |
| for (size_t i = 0; i < targets_.size(); i++) { |
| OutputFile ninja_file = helper_.GetNinjaFileForTarget(targets_[i]); |
| out_ << "subninja "; |
| path_output_.WriteFile(out_, ninja_file); |
| out_ << std::endl; |
| } |
| out_ << std::endl; |
| } |