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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef CHROME_INSTALLER_UTIL_COPY_TREE_WORK_ITEM_H_ | 5 #ifndef CHROME_INSTALLER_UTIL_COPY_TREE_WORK_ITEM_H_ |
| 6 #define CHROME_INSTALLER_UTIL_COPY_TREE_WORK_ITEM_H_ | 6 #define CHROME_INSTALLER_UTIL_COPY_TREE_WORK_ITEM_H_ |
| 7 | 7 |
| 8 #include "base/files/file_path.h" | 8 #include "base/files/file_path.h" |
| 9 #include "base/files/scoped_temp_dir.h" | 9 #include "base/files/scoped_temp_dir.h" |
| 10 #include "base/gtest_prod_util.h" | 10 #include "base/gtest_prod_util.h" |
| 11 #include "chrome/installer/util/work_item.h" | 11 #include "chrome/installer/util/work_item.h" |
| 12 | 12 |
| 13 // A WorkItem subclass that recursively copies a file system hierarchy from | 13 // A WorkItem subclass that recursively copies a file system hierarchy from |
| 14 // source path to destination path. It also creates all necessary intermediate | 14 // source path to destination path. It also creates all necessary intermediate |
| 15 // paths of the destination path if they do not exist. The file system | 15 // paths of the destination path if they do not exist. The file system |
| 16 // hierarchy could be a single file, or a directory. | 16 // hierarchy could be a single file, or a directory. |
| 17 // Under the cover CopyTreeWorkItem moves the destination path, if existing, | 17 // Under the cover CopyTreeWorkItem moves the destination path, if existing, |
| 18 // to the temporary directory passed in, and then copies the source hierarchy | 18 // to the temporary directory passed in, and then copies the source hierarchy |
| 19 // to the destination location. During rollback the original destination | 19 // to the destination location. During rollback the original destination |
| 20 // hierarchy is moved back. | 20 // hierarchy is moved back. |
| 21 // NOTE: It is a best practice to ensure that the temporary directory is on the | 21 // NOTE: It is a best practice to ensure that the temporary directory is on the |
| 22 // same volume as the destination path. If this is not the case, the existing | 22 // same volume as the destination path. If this is not the case, the existing |
| 23 // destination path is not moved, but rather copied, to the destination path. | 23 // destination path is not moved, but rather copied, to the destination path. |
| 24 // This will result in in-use files being left behind, as well as potentially | 24 // This will result in in-use files being left behind, as well as potentially |
| 25 // losing ACLs or other metadata in the case of a rollback. | 25 // losing ACLs or other metadata in the case of a rollback. |
| 26 class CopyTreeWorkItem : public WorkItem { | 26 class CopyTreeWorkItem : public WorkItem { |
| 27 public: | 27 public: |
| 28 virtual ~CopyTreeWorkItem(); | 28 ~CopyTreeWorkItem() override; |
| 29 | 29 |
| 30 virtual bool Do(); | 30 bool Do() override; |
| 31 | 31 |
| 32 virtual void Rollback(); | 32 void Rollback() override; |
| 33 | 33 |
| 34 private: | 34 private: |
| 35 friend class WorkItem; | 35 friend class WorkItem; |
| 36 | 36 |
| 37 // See comments on corresponding member variables for the semantics of | 37 // See comments on corresponding member variables for the semantics of |
| 38 // arguments. | 38 // arguments. |
| 39 // Notes on temp_path: to facilitate rollback, the caller needs to supply | 39 // Notes on temp_path: to facilitate rollback, the caller needs to supply |
| 40 // a temporary directory to save the original files if they exist under | 40 // a temporary directory to save the original files if they exist under |
| 41 // dest_path. | 41 // dest_path. |
| 42 CopyTreeWorkItem(const base::FilePath& source_path, | 42 CopyTreeWorkItem(const base::FilePath& source_path, |
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| 80 base::ScopedTempDir backup_path_; | 80 base::ScopedTempDir backup_path_; |
| 81 | 81 |
| 82 FRIEND_TEST_ALL_PREFIXES(CopyTreeWorkItemTest, CopyFileSameContent); | 82 FRIEND_TEST_ALL_PREFIXES(CopyTreeWorkItemTest, CopyFileSameContent); |
| 83 FRIEND_TEST_ALL_PREFIXES(CopyTreeWorkItemTest, CopyFileInUse); | 83 FRIEND_TEST_ALL_PREFIXES(CopyTreeWorkItemTest, CopyFileInUse); |
| 84 FRIEND_TEST_ALL_PREFIXES(CopyTreeWorkItemTest, CopyFileAndCleanup); | 84 FRIEND_TEST_ALL_PREFIXES(CopyTreeWorkItemTest, CopyFileAndCleanup); |
| 85 FRIEND_TEST_ALL_PREFIXES(CopyTreeWorkItemTest, NewNameAndCopyTest); | 85 FRIEND_TEST_ALL_PREFIXES(CopyTreeWorkItemTest, NewNameAndCopyTest); |
| 86 FRIEND_TEST_ALL_PREFIXES(CopyTreeWorkItemTest, CopyFileInUseAndCleanup); | 86 FRIEND_TEST_ALL_PREFIXES(CopyTreeWorkItemTest, CopyFileInUseAndCleanup); |
| 87 }; | 87 }; |
| 88 | 88 |
| 89 #endif // CHROME_INSTALLER_UTIL_COPY_TREE_WORK_ITEM_H_ | 89 #endif // CHROME_INSTALLER_UTIL_COPY_TREE_WORK_ITEM_H_ |
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