releasetools: Add script to sign zips

#!/usr/bin/env python

#

# Copyright (C) 2017 The LineageOS 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.

"""

Signs the given zip with the given key producing a new zip.

Usage:  sign_release_zip [flags] input_zip output_zip

  -k (--package_key) <key> Key to use to sign the package (default is

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

"""

import sys

import common

OPTIONS = common.OPTIONS

OPTIONS.package_key = "build/target/product/security/testkey"

def SignOutput(input_zip_name, output_zip_name):

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

  pw = key_passwords[OPTIONS.package_key]

  common.SignFile(input_zip_name, output_zip_name, OPTIONS.package_key, pw,

                  whole_file=True)

def main(argv):

  def option_handler(o, a):

    if o in ("-k", "--package_key"):

      OPTIONS.package_key = a

    else:

      return False

    return True

  args = common.ParseOptions(argv, __doc__,

                             extra_opts="k:",

                             extra_long_opts=[

                                 "package_key=",

                             ], extra_option_handler=option_handler)

  if len(args) != 2:

    common.Usage(__doc__)

    sys.exit(1)

  SignOutput(args[0], args[1])

if __name__ == '__main__':

  try:

    main(sys.argv[1:])

  except common.ExternalError as e:

    print()

    print("   ERROR: %s" % e)

    print()

    sys.exit(1)