text: // Copyright 2017 Per Grön. All Rights Reserved.
  //
  // Licensed under the Apache License, Version 2.0 (the "License");
  // you may not use this file except in compliance with the License.
  // You may obtain a copy of the License at
  //
  //     http://www.apache.org/licenses/LICENSE-2.0
  //
  // Unless required by applicable law or agreed to in writing, software
  // distributed under the License is distributed on an "AS IS" BASIS,
  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  // See the License for the specific language governing permissions and
  // limitations under the License.
  
  #pragma once
  
  #include "fs/file_system.h"
  
  namespace shk {
  
  /**
   * Create a file system that doesn't do anything on file modification
   * operations, it just silently ignores them.
   */
  std::unique_ptr<FileSystem> dryRunFileSystem(FileSystem &inner_file_system);
  
  }  // namespace shk
  