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Commit e56bfbc7 authored by Yifan Hong's avatar Yifan Hong Committed by Automerger Merge Worker
Browse files

Add GetBootImageBuildProp. am: 85ac5012 am: d2d51201 am: 44f4b3fe 

Original change: https://android-review.googlesource.com/c/platform/build/+/1543469

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I3c3ca0fc4f7565f5facd530b9e2647f2aaad5460
parents 736f3818 44f4b3fe

tools/releasetools/common.py

+30 −9
Original line number Diff line number Diff line
@@ -3597,19 +3597,16 @@ class DynamicPartitionsDifference(object): 
        append('move %s %s' % (p, u.tgt_group))





def GetBootImageTimestamp(boot_img):

def GetBootImageBuildProp(boot_img):

  """

  Get timestamp from ramdisk within the boot image

  Get build.prop from ramdisk within the boot image



  Args:

    boot_img: the boot image file. Ramdisk must be compressed with lz4 format.



  Return:

    An integer that corresponds to the timestamp of the boot image, or None

    if file has unknown format. Raise exception if an unexpected error has

    occurred.

    An extracted file that stores properties in the boot image.

  """



  tmp_dir = MakeTempDir('boot_', suffix='.img')

  try:

    RunAndCheckOutput(['unpack_bootimg', '--boot_img', boot_img, '--out', tmp_dir])
@@ -3634,10 +3631,34 @@ def GetBootImageTimestamp(boot_img): 
        break

      logger.warning('Unable to get boot image timestamp: no %s in ramdisk', search_path)



    return prop_file



  except ExternalError as e:

    logger.warning('Unable to get boot image build props: %s', e)

    return None





def GetBootImageTimestamp(boot_img):

  """

  Get timestamp from ramdisk within the boot image



  Args:

    boot_img: the boot image file. Ramdisk must be compressed with lz4 format.



  Return:

    An integer that corresponds to the timestamp of the boot image, or None

    if file has unknown format. Raise exception if an unexpected error has

    occurred.

  """

  prop_file = GetBootImageBuildProp(boot_img)

  if not prop_file:

    return None



  props = PartitionBuildProps.FromBuildPropFile('boot', prop_file)

  if props is None:

    return None



  try:

    timestamp = props.GetProp('ro.bootimage.build.date.utc')

    if timestamp:

      return int(timestamp)