mirror of
https://github.com/klzgrad/naiveproxy.git
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130 lines
4.1 KiB
C++
130 lines
4.1 KiB
C++
// 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 "tools/gn/ninja_toolchain_writer.h"
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#include <fstream>
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#include "base/files/file_util.h"
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#include "base/strings/stringize_macros.h"
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#include "tools/gn/build_settings.h"
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#include "tools/gn/filesystem_utils.h"
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#include "tools/gn/ninja_utils.h"
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#include "tools/gn/pool.h"
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#include "tools/gn/settings.h"
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#include "tools/gn/substitution_writer.h"
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#include "tools/gn/target.h"
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#include "tools/gn/toolchain.h"
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#include "tools/gn/trace.h"
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namespace {
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const char kIndent[] = " ";
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} // namespace
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NinjaToolchainWriter::NinjaToolchainWriter(
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const Settings* settings,
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const Toolchain* toolchain,
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std::ostream& out)
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: settings_(settings),
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toolchain_(toolchain),
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out_(out),
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path_output_(settings_->build_settings()->build_dir(),
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settings_->build_settings()->root_path_utf8(),
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ESCAPE_NINJA) {
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}
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NinjaToolchainWriter::~NinjaToolchainWriter() {
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}
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void NinjaToolchainWriter::Run(
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const std::vector<NinjaWriter::TargetRulePair>& rules) {
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std::string rule_prefix = GetNinjaRulePrefixForToolchain(settings_);
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for (int i = Toolchain::TYPE_NONE + 1; i < Toolchain::TYPE_NUMTYPES; i++) {
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Toolchain::ToolType tool_type = static_cast<Toolchain::ToolType>(i);
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const Tool* tool = toolchain_->GetTool(tool_type);
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if (tool_type == Toolchain::TYPE_ACTION)
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continue;
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if (tool)
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WriteToolRule(tool_type, tool, rule_prefix);
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}
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out_ << std::endl;
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for (const auto& pair : rules)
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out_ << pair.second;
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}
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// static
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bool NinjaToolchainWriter::RunAndWriteFile(
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const Settings* settings,
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const Toolchain* toolchain,
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const std::vector<NinjaWriter::TargetRulePair>& rules) {
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base::FilePath ninja_file(settings->build_settings()->GetFullPath(
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GetNinjaFileForToolchain(settings)));
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ScopedTrace trace(TraceItem::TRACE_FILE_WRITE, FilePathToUTF8(ninja_file));
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base::CreateDirectory(ninja_file.DirName());
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std::ofstream file;
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file.open(FilePathToUTF8(ninja_file).c_str(),
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std::ios_base::out | std::ios_base::binary);
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if (file.fail())
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return false;
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NinjaToolchainWriter gen(settings, toolchain, file);
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gen.Run(rules);
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return true;
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}
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void NinjaToolchainWriter::WriteToolRule(const Toolchain::ToolType type,
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const Tool* tool,
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const std::string& rule_prefix) {
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out_ << "rule " << rule_prefix << Toolchain::ToolTypeToName(type)
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<< std::endl;
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// Rules explicitly include shell commands, so don't try to escape.
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EscapeOptions options;
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options.mode = ESCAPE_NINJA_PREFORMATTED_COMMAND;
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CHECK(!tool->command().empty()) << "Command should not be empty";
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WriteRulePattern("command", tool->command(), options);
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WriteRulePattern("description", tool->description(), options);
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WriteRulePattern("rspfile", tool->rspfile(), options);
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WriteRulePattern("rspfile_content", tool->rspfile_content(), options);
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if (tool->depsformat() == Tool::DEPS_GCC) {
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// GCC-style deps require a depfile.
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if (!tool->depfile().empty()) {
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WriteRulePattern("depfile", tool->depfile(), options);
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out_ << kIndent << "deps = gcc" << std::endl;
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}
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} else if (tool->depsformat() == Tool::DEPS_MSVC) {
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// MSVC deps don't have a depfile.
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out_ << kIndent << "deps = msvc" << std::endl;
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}
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// Use pool is specified.
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if (tool->pool().ptr) {
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std::string pool_name =
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tool->pool().ptr->GetNinjaName(settings_->default_toolchain_label());
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out_ << kIndent << "pool = " << pool_name << std::endl;
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}
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if (tool->restat())
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out_ << kIndent << "restat = 1" << std::endl;
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}
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void NinjaToolchainWriter::WriteRulePattern(const char* name,
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const SubstitutionPattern& pattern,
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const EscapeOptions& options) {
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if (pattern.empty())
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return;
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out_ << kIndent << name << " = ";
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SubstitutionWriter::WriteWithNinjaVariables(pattern, options, out_);
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out_ << std::endl;
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}
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