self_cleaning_temp_dir.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#ifndef CHROME_INSTALLER_UTIL_SELF_CLEANING_TEMP_DIR_H_
6#define CHROME_INSTALLER_UTIL_SELF_CLEANING_TEMP_DIR_H_
7
8#include "base/basictypes.h"
9#include "base/file_path.h"
10#include "base/gtest_prod_util.h"
11
12namespace installer {
13
14// A helper class for managing a temporary directory.  In relation to
15// ScopedTempDir, this class additionally cleans up all non-empty parent
16// directories of the temporary directory that are created by an instance.
17class SelfCleaningTempDir {
18 public:
19  typedef FilePath::StringType StringType;
20
21  SelfCleaningTempDir();
22
23  // Performs a Delete().
24  ~SelfCleaningTempDir();
25
26  // Creates a temporary directory named |temp_name| under |parent_dir|,
27  // creating intermediate directories as needed.
28  bool Initialize(const FilePath& parent_dir, const StringType& temp_name);
29
30  // Returns the temporary directory created in Initialize().
31  const FilePath& path() const { return temp_dir_; }
32
33  // Deletes the temporary directory created in Initialize() and all of its
34  // contents, as well as all empty intermediate directories.  Any of these that
35  // cannot be deleted immediately are scheduled for deletion upon reboot.
36  bool Delete();
37
38 private:
39  static void GetTopDirToCreate(const FilePath& temp_parent_dir,
40                                FilePath* base_dir);
41
42  // The topmost directory created.
43  FilePath base_dir_;
44
45  // The temporary directory.
46  FilePath temp_dir_;
47
48  FRIEND_TEST_ALL_PREFIXES(SelfCleaningTempDirTest, TopLevel);
49  FRIEND_TEST_ALL_PREFIXES(SelfCleaningTempDirTest, TopLevelPlusOne);
50  DISALLOW_COPY_AND_ASSIGN(SelfCleaningTempDir);
51};
52
53}  // namespace installer
54
55#endif  // CHROME_INSTALLER_UTIL_SELF_CLEANING_TEMP_DIR_H_
56