| # -*- coding: utf-8 -*- |
| # Copyright 2018 The Chromium OS Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| """Script to generate a Chromium OS update for use by the update engine. |
| |
| If a source .bin is specified, the update is assumed to be a delta update. |
| """ |
| |
| from __future__ import print_function |
| |
| import sys |
| |
| from chromite.lib import commandline |
| from chromite.lib import cros_logging as logging |
| from chromite.lib.paygen import paygen_payload_lib |
| |
| |
| assert sys.version_info >= (3, 6), 'This module requires Python 3.6+' |
| |
| |
| def ParseArguments(argv): |
| """Returns a namespace for the CLI arguments.""" |
| parser = commandline.ArgumentParser(description=__doc__) |
| parser.add_argument('--tgt-image', |
| help='The path (to local disk or Google Storage Bucket)' |
| ' of the target image to build the payload for.') |
| parser.add_argument('--src-image', |
| help='The path (to local disk or Google Storage Bucket)' |
| ' of the source image. If specified, this makes a delta' |
| ' update payload.') |
| parser.add_argument('--output', type='path', help='Output file.') |
| parser.add_argument('--private-key', type='path', |
| help='Path to private key in .pem format.') |
| parser.add_argument('--check', action='store_true', |
| help='If passed, verifies the integrity of the payload') |
| parser.add_argument('--extract', action='store_true', |
| help='If set, extract old/new kernel/rootfs to ' |
| '[old|new]_[kern|root].dat. Useful for debugging.') |
| parser.add_argument('--work-dir', type='path', |
| help='Path to a temporary directory in the chroot.') |
| parser.add_argument('--payload', type='path', |
| help='Path to the input payload file. Only used when ' |
| 'trying to generate the payload properties file using ' |
| 'the given payload. If --output is not passed, the ' |
| 'payload properties file path will be generated by ' |
| 'appending .json to the payload filename itself.') |
| |
| opts = parser.parse_args(argv) |
| opts.Freeze() |
| |
| return opts |
| |
| |
| def main(argv): |
| opts = ParseArguments(argv) |
| |
| if opts.payload: |
| # We only want the payload's metadata. Create it and exit. |
| logging.info('Generating payload properties file.') |
| paygen_payload_lib.GenerateUpdatePayloadPropertiesFile(opts.payload, |
| opts.output) |
| return |
| |
| return paygen_payload_lib.GenerateUpdatePayload( |
| opts.tgt_image, opts.output, src_image=opts.src_image, |
| work_dir=opts.work_dir, private_key=opts.private_key, check=opts.check) |
