1 /*
2  * Copyright (C) 2017 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 #pragma once
17 
18 #include <sys/types.h>
19 
20 #include <chrono>
21 #include <string>
22 
23 namespace cuttlefish {
24 bool FileExists(const std::string& path);
25 bool FileHasContent(const std::string& path);
26 bool DirectoryExists(const std::string& path);
27 bool IsDirectoryEmpty(const std::string& path);
28 off_t FileSize(const std::string& path);
29 bool RemoveFile(const std::string& file);
30 bool RenameFile(const std::string& old_name, const std::string& new_name);
31 std::string ReadFile(const std::string& file);
32 std::chrono::system_clock::time_point FileModificationTime(const std::string& path);
33 
34 // The returned value may contain .. or . if these are present in the path
35 // argument.
36 // path must not contain ~
37 std::string AbsolutePath(const std::string& path);
38 
39 std::string CurrentDirectory();
40 
41 struct FileSizes {
42   off_t sparse_size;
43   off_t disk_size;
44 };
45 FileSizes SparseFileSizes(const std::string& path);
46 }  // namespace cuttlefish
47