blob: cc80f0c843aa83eec90c7e8b380986d5ddca2b7c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
// Copyright (c) 2011 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 "chrome/installer/util/duplicate_tree_detector.h"
#include "base/file_util.h"
#include "base/logging.h"
namespace installer {
bool IsIdenticalFileHierarchy(const FilePath& src_path,
const FilePath& dest_path) {
using file_util::FileEnumerator;
base::PlatformFileInfo src_info;
base::PlatformFileInfo dest_info;
bool is_identical = false;
if (file_util::GetFileInfo(src_path, &src_info) &&
file_util::GetFileInfo(dest_path, &dest_info)) {
// Both paths exist, check the types:
if (!src_info.is_directory && !dest_info.is_directory) {
// Two files are "identical" if the file sizes are equivalent.
is_identical = src_info.size == dest_info.size;
} else if (src_info.is_directory && dest_info.is_directory) {
// Two directories are "identical" if dest_path contains entries that are
// "identical" to all the entries in src_path.
is_identical = true;
FileEnumerator path_enum(
src_path,
false, // Not recursive
static_cast<FileEnumerator::FileType>(
FileEnumerator::FILES | FileEnumerator::DIRECTORIES));
for (FilePath path = path_enum.Next(); is_identical && !path.empty();
path = path_enum.Next()) {
is_identical =
IsIdenticalFileHierarchy(path, dest_path.Append(path.BaseName()));
}
} else {
// The two paths are of different types, so they cannot be identical.
DCHECK(!is_identical);
}
}
return is_identical;
}
} // namespace installer
|
