Merge "apex_utils: do not use `deapexer list`" into main

    Returns:

      The repacked apex file containing the signed apk files.

    """

    if not os.path.exists(self.debugfs_path):

      raise ApexSigningError(

          "Couldn't find location of debugfs_static: " +

          "Path {} does not exist. ".format(self.debugfs_path) +

          "Make sure bin/debugfs_static can be found in -p <path>")

    list_cmd = ['deapexer', '--debugfs_path', self.debugfs_path,

                'list', self.apex_path]

    entries_names = common.RunAndCheckOutput(list_cmd).split()

    apk_entries = [name for name in entries_names if name.endswith('.apk')]

    payload_dir = self.ExtractApexPayload(self.apex_path)

    apk_entries = []

    for base_dir, _, files in os.walk(payload_dir):

      apk_entries.extend(os.path.join(base_dir, file) for file in files if file.endswith('.apk'))

    # No need to sign and repack, return the original apex path.

    if not apk_entries and self.sign_tool is None:

        logger.warning('Apk path does not contain the intended directory name:'

                       ' %s', entry)

    payload_dir, has_signed_content = self.ExtractApexPayloadAndSignContents(

        apk_entries, apk_keys, payload_key, signing_args)

    has_signed_content = self.SignContentsInPayload(

        payload_dir, apk_entries, apk_keys, payload_key, signing_args)

    if not has_signed_content:

      logger.info('No contents has been signed in %s', self.apex_path)

      return self.apex_path

    return self.RepackApexPayload(payload_dir, payload_key, signing_args)

  def ExtractApexPayloadAndSignContents(self, apk_entries, apk_keys, payload_key, signing_args):

    """Extracts the payload image and signs the containing apk files."""

  def ExtractApexPayload(self, apex_path):

    """Extracts the contents of an APEX and returns the directory of the contents"""

    if not os.path.exists(self.debugfs_path):

      raise ApexSigningError(

          "Couldn't find location of debugfs_static: " +

    extract_cmd = ['deapexer', '--debugfs_path', self.debugfs_path,

                   '--fsckerofs_path', self.fsckerofs_path,

                   'extract',

                   self.apex_path, payload_dir]

                   apex_path, payload_dir]

    common.RunAndCheckOutput(extract_cmd)

    return payload_dir

  def SignContentsInPayload(self, payload_dir, apk_entries, apk_keys, payload_key, signing_args):

    """Signs the contents in payload."""

    has_signed_content = False

    for entry in apk_entries:

      apk_path = os.path.join(payload_dir, entry)

      common.RunAndCheckOutput(cmd)

      has_signed_content = True

    return payload_dir, has_signed_content

    return has_signed_content

  def RepackApexPayload(self, payload_dir, payload_key, signing_args=None):

    """Rebuilds the apex file with the updated payload directory."""