duplicate_tree_detector.h revision 5821806d5e7f356e8fa4b058a389a808ea183019 
1// Copyright (c) 2011 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4//
5// This file declares a helper function that will check to see if a given folder
6// is "identical" to another (for some value of identical, see below).
7//
8
9#ifndef CHROME_INSTALLER_UTIL_DUPLICATE_TREE_DETECTOR_H_
10#define CHROME_INSTALLER_UTIL_DUPLICATE_TREE_DETECTOR_H_
11
12class FilePath;
13
14namespace installer {
15
16// Returns true if |dest_path| contains all the files from |src_path| in the
17// same directory structure and each of those files is of the same length.
18// src_path_ and |dest_path| must either both be files or both be directories.
19// Note that THIS IS A WEAK DEFINITION OF IDENTICAL and is intended only to
20// catch cases of missing files or obvious modifications.
21// It notably DOES NOT CHECKSUM the files.
22bool IsIdenticalFileHierarchy(const FilePath& src_path,
23                              const FilePath& dest_path);
24
25}  // namespace installer
26
27#endif  // CHROME_INSTALLER_UTIL_DUPLICATE_TREE_DETECTOR_H_
28