Index: chrome/browser/component_updater/component_patcher.h |
diff --git a/chrome/browser/component_updater/component_patcher.h b/chrome/browser/component_updater/component_patcher.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..89fa70a6a3953e50cdb15723422daeb25bda9fa0 |
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+++ b/chrome/browser/component_updater/component_patcher.h |
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+// Copyright (c) 2013 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. |
+ |
+#ifndef CHROME_BROWSER_COMPONENT_UPDATER_COMPONENT_PATCHER_H_ |
+#define CHROME_BROWSER_COMPONENT_UPDATER_COMPONENT_PATCHER_H_ |
+ |
+#include "base/basictypes.h" |
+#include "base/compiler_specific.h" |
+#include "chrome/browser/component_updater/component_unpacker.h" |
+ |
+namespace base { |
+class FilePath; |
+} |
+ |
+class ComponentInstaller; |
+ |
+// The type of a patch file. |
+enum PatchType { |
erikwright (departed)
2013/06/17 17:24:28
This enum in the global namespace seems dangerous
Sorin Jianu
2013/06/17 22:21:09
Done. We will introduce a namespace in a future CL
|
+ kPatchTypeUnknown, |
+ kPatchTypeCourgette, |
+ kPatchTypeBsdiff, |
sra1
2013/06/15 00:56:17
One thing to consider:
Since Courgette ends with
waffles
2013/06/17 23:51:07
That makes sense; but I think we prefer to keep it
|
+}; |
+ |
+// Applies a delta patch to a file. Specifically, creates a file at |
robertshield
2013/06/17 17:47:00
From reading the implementation, it looks like a d
waffles
2013/06/17 23:51:07
Done; the comment for DifferentialUpdatePatch has
|
+// |output_file| using |input_file| patched according to the algorithm |
+// specified by |patch_type| using |patch_file|. Sets the value of error to |
+// the error code of the failing patch operation, if there is such a failure. |
+class ComponentPatcher { |
+ public: |
+ ComponentPatcher() {} |
+ virtual ComponentUnpacker::Error Patch(PatchType patch_type, |
+ const base::FilePath& input_file, |
+ const base::FilePath& patch_file, |
+ const base::FilePath& output_file, |
+ int* error) = 0; |
+ virtual ~ComponentPatcher() {} |
+}; |
+ |
+class ComponentPatcherCrossPlatform : public ComponentPatcher { |
+ public: |
+ ComponentPatcherCrossPlatform(); |
+ virtual ComponentUnpacker::Error Patch(PatchType patch_type, |
+ const base::FilePath& input_file, |
+ const base::FilePath& patch_file, |
+ const base::FilePath& output_file, |
+ int* error) OVERRIDE; |
+ private: |
+ DISALLOW_COPY_AND_ASSIGN(ComponentPatcherCrossPlatform); |
+}; |
+ |
+// Recreates the content of a full CRX by taking the unpacked files of a |
+// differential component update in |input_dir| and patching the installed |
+// component files. |
+// The resulting files are written into the |unpack_dir| directory. |
+ComponentUnpacker::Error DifferentialUpdatePatch( |
+ const base::FilePath& input_dir, |
+ const base::FilePath& unpack_dir, |
+ ComponentPatcher* component_patcher, |
+ ComponentInstaller* installer, |
+ int* error); |
+ |
+#endif // CHROME_BROWSER_COMPONENT_UPDATER_COMPONENT_PATCHER_H_ |