text: // 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/settings.h"
  
  #include "base/logging.h"
  #include "build/build_config.h"
  #include "tools/gn/filesystem_utils.h"
  
  Settings::Settings(const BuildSettings* build_settings,
                     const std::string& output_subdir_name)
      : build_settings_(build_settings),
        import_manager_(),
        base_config_(this),
        greedy_target_generation_(false) {
    if (output_subdir_name.empty()) {
      toolchain_output_dir_ = build_settings->build_dir();
    } else {
      // We guarantee this ends in a slash.
      DCHECK(output_subdir_name[output_subdir_name.size() - 1] == '/');
      toolchain_output_subdir_.value().append(output_subdir_name);
  
      DCHECK(!build_settings->build_dir().is_null());
      toolchain_output_dir_ = SourceDir(build_settings->build_dir().value() +
                                        toolchain_output_subdir_.value());
    }
    // The output dir will be null in some tests and when invoked to parsed
    // one-off data without doing generation.
    if (!toolchain_output_dir_.is_null())
      toolchain_gen_dir_ = SourceDir(toolchain_output_dir_.value() + "gen/");
  }
  
  Settings::~Settings() = default;
  