common/libs/utils/files.h

/*
 * Copyright (C) 2017 The Android Open Source Project
 *
 * 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 <sys/types.h>

#include <chrono>
#include <string>

namespace cuttlefish {
bool FileExists(const std::string& path);
bool FileHasContent(const std::string& path);
std::vector<std::string> DirectoryContents(const std::string& path);
bool DirectoryExists(const std::string& path);
bool IsDirectoryEmpty(const std::string& path);
off_t FileSize(const std::string& path);
bool RemoveFile(const std::string& file);
bool RenameFile(const std::string& old_name, const std::string& new_name);
std::string ReadFile(const std::string& file);
std::chrono::system_clock::time_point FileModificationTime(const std::string& path);
std::string cpp_dirname(const std::string& str);
std::string cpp_basename(const std::string& str);

// The returned value may contain .. or . if these are present in the path
// argument.
// path must not contain ~
std::string AbsolutePath(const std::string& path);

std::string CurrentDirectory();

struct FileSizes {
  off_t sparse_size;
  off_t disk_size;
};
FileSizes SparseFileSizes(const std::string& path);
}  // namespace cuttlefish