build/packages/generate_package_metadata.py

#!/usr/bin/env python3
# Copyright 2023 The Fuchsia Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Takes the output package manifests from a GN metadata walk, and parses
it into a PackageManifestList JSON format. For use in the template
//build/packages:generate_package_metadata"""

import argparse
import json
import sys


def main():
    parser = argparse.ArgumentParser()
    parser.add_argument('--input', help='dump of package manifests')
    parser.add_argument('--output', help='Write to this file')
    args = parser.parse_args()

    out_package_manifest_list = {'content': {'manifests': []}, 'version': '1'}
    with open(args.input, 'r') as f:
        for line in f.readlines():
            out_package_manifest_list['content']['manifests'].append(
                line.strip())

    with open(args.output, 'w') as out:
        json.dump(out_package_manifest_list, out, indent=2, sort_keys=True)

    return 0


if __name__ == "__main__":
    sys.exit(main())