qcom-common: Add releasetools for assertions

 * Releasetools extension for adding bootloader version assertion.

Change-Id: I52bf448a0dbaf5078848fadb4fae4d471355b15f
diff --git a/BoardConfigCommon.mk b/BoardConfigCommon.mk
index cd5d173..a755454 100644
--- a/BoardConfigCommon.mk
+++ b/BoardConfigCommon.mk
@@ -55,4 +55,4 @@
 BOARD_CHARGING_MODE_BOOTING_LPM := /sys/class/power_supply/battery/batt_lp_charging
 BOARD_BATTERY_DEVICE_NAME := "battery"
 
-
+TARGET_RELEASETOOLS_EXTENSIONS := device/samsung/qcom-common
diff --git a/releasetools.py b/releasetools.py
new file mode 100644
index 0000000..8c63d9c
--- /dev/null
+++ b/releasetools.py
@@ -0,0 +1,37 @@
+# Copyright (C) 2009 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.
+
+import common
+import re
+import os
+
+TARGET_DIR = os.getenv('OUT')
+
+def FullOTA_Assertions(info):
+  AddBootloaderAssertion(info, info.input_zip)
+
+
+def IncrementalOTA_Assertions(info):
+  AddBootloaderAssertion(info, info.target_zip)
+
+
+def AddBootloaderAssertion(info, input_zip):
+  android_info = input_zip.read("OTA/android-info.txt")
+  m = re.search(r"require\s+version-bootloader\s*=\s*(\S+)", android_info)
+  if m:
+    bootloaders = m.group(1).split("|")
+    if "*" not in bootloaders:
+      info.script.AssertSomeBootloader(*bootloaders)
+    info.metadata["pre-bootloader"] = m.group(1)
+