update manta bootloader from recovery

Change-Id: I84f2502d72a93a114b43a8845b787a460ae93054
diff --git a/releasetools.py b/releasetools.py
new file mode 100644
index 0000000..7945797
--- /dev/null
+++ b/releasetools.py
@@ -0,0 +1,68 @@
+# Copyright (C) 2012 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.
+
+"""Emit commands needed for Mantaray during OTA installation
+(installing the bootloader)."""
+
+import common
+
+def FullOTA_InstallEnd(info):
+  try:
+    bootloader_img = info.input_zip.read("RADIO/bootloader.img")
+  except KeyError:
+    print "no bootloader.img in target_files; skipping install"
+  else:
+    WriteBootloader(info, bootloader_img)
+
+def IncrementalOTA_VerifyEnd(info):
+  # try:
+  #   target_radio_img = info.target_zip.read("RADIO/radio.img")
+  #   source_radio_img = info.source_zip.read("RADIO/radio.img")
+  # except KeyError:
+  #   # No source or target radio. Nothing to verify
+  #   pass
+  # else:
+  #   if source_radio_img != target_radio_img:
+  #     info.script.CacheFreeSpaceCheck(len(source_radio_img))
+  #     radio_type, radio_device = common.GetTypeAndDevice("/radio", info.info_dict)
+  #     info.script.PatchCheck("%s:%s:%d:%s:%d:%s" % (
+  #         radio_type, radio_device,
+  #         len(source_radio_img), common.sha1(source_radio_img).hexdigest(),
+  #         len(target_radio_img), common.sha1(target_radio_img).hexdigest()))
+  pass
+
+def IncrementalOTA_InstallEnd(info):
+  try:
+    target_bootloader_img = info.target_zip.read("RADIO/bootloader.img")
+    try:
+      source_bootloader_img = info.source_zip.read("RADIO/bootloader.img")
+    except KeyError:
+      source_bootloader_img = None
+
+    if source_bootloader_img == target_bootloader_img:
+      print "bootloader unchanged; skipping"
+    else:
+      WriteBootloader(info, target_bootloader_img)
+  except KeyError:
+    print "no bootloader.img in target target_files; skipping install"
+
+def WriteBootloader(info, bootloader_img):
+  common.ZipWriteStr(info.output_zip, "bootloader.img", bootloader_img)
+  bl_type, bl_device = common.GetTypeAndDevice("/bootloader", info.info_dict)
+
+  fstab = info.info_dict["fstab"]
+
+  info.script.Print("Writing bootloader...")
+  info.script.AppendExtra('package_extract_file("bootloader.img", "%s");' %
+                          bl_device)