Skip signing key check in some cases

          "build/make/target/product/security/testkey")

    # Get signing keys

    OPTIONS.key_passwords = common.GetKeyPasswords([OPTIONS.package_key])

    # Only check for existence of key file if using the default signer.

    # Because the custom signer might not need the key file AT all.

    # b/191704641

    if not OPTIONS.signapk_path:

      private_key_path = OPTIONS.package_key + OPTIONS.private_key_suffix

      if not os.path.exists(private_key_path):

        raise common.ExternalError(

  try:

    common.CloseInheritedPipes()

    main(sys.argv[1:])

  except common.ExternalError:

    logger.exception("\n   ERROR:\n")

    sys.exit(1)

  finally:

    common.Cleanup()