Split payload application code into a subdirectory.
This patch splits from the main libupdate_engine code the part that
is strictly used to download and apply a payload into a new static
library, moving the code to subdirectories. The new library is divided
in two subdirectories: common/ and payload_consumer/, and should not
depend on other update_engine files outside those two subdirectories.
The main difference between those two is that the common/ tools are more
generic and not tied to the payload consumer process, but otherwise they
are both compiled together.
There are still dependencies from the new libpayload_consumer library
into the main directory files and DBus generated files. Those will be
addressed in follow up CLs.
Bug: 25197634
Test: FEATURES=test emerge-link update_engine; `mm` on Brillo.
Change-Id: Id8d0204ea573627e6e26ca9ea17b9592ca95bc23
diff --git a/common/hwid_override.cc b/common/hwid_override.cc
new file mode 100644
index 0000000..8800e94
--- /dev/null
+++ b/common/hwid_override.cc
@@ -0,0 +1,46 @@
+//
+// Copyright (C) 2013 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "update_engine/common/hwid_override.h"
+
+#include <map>
+#include <string>
+
+#include <base/files/file_path.h>
+#include <base/files/file_util.h>
+#include <brillo/key_value_store.h>
+
+using std::map;
+using std::string;
+
+namespace chromeos_update_engine {
+
+const char HwidOverride::kHwidOverrideKey[] = "HWID_OVERRIDE";
+
+HwidOverride::HwidOverride() {}
+
+HwidOverride::~HwidOverride() {}
+
+string HwidOverride::Read(const base::FilePath& root) {
+ brillo::KeyValueStore lsb_release;
+ lsb_release.Load(base::FilePath(root.value() + "/etc/lsb-release"));
+ string result;
+ if (lsb_release.GetString(kHwidOverrideKey, &result))
+ return result;
+ return "";
+}
+
+} // namespace chromeos_update_engine