qubes-installer-qubes-os/scripts/ksparser

#!/usr/bin/env python3

import argparse
import sys
import pungi.ks

from jinja2 import Environment

REPO_TEMPLATE = """
[{{ks_repo.name}}]
name={{ks_repo.name}}
enabled=1
{%- if ks_repo.baseurl %}
baseurl={{ks_repo.baseurl}}
{% endif -%}
{%- if ks_repo.metalink %}
metalink={{ks_repo.metalink}}
{%- endif -%}
{%- if ks_repo.gpgkey %}
gpgcheck=1
gpgkey={{ks_repo.gpgkey}}
{% endif -%}
"""


def get_args():
    parser = argparse.ArgumentParser()
    parser.add_argument(
        "--ks",
        metavar='PATH',
        required=True
    )
    parser.add_argument(
        "--extract-repo-conf-to",
        metavar='PATH',
        required=False
    )

    return parser.parse_args()


def main():
    args = get_args()
    if args.ks:
        if args.extract_repo_conf_to:
            ksparser = pungi.ks.get_ksparser(args.ks)
            repo_content = ''
            for ks_repo in ksparser.handler.repo.repoList:
                repo_content += Environment().from_string(REPO_TEMPLATE).render(
                    ks_repo=ks_repo.__dict__)

            try:
                with open(args.extract_repo_conf_to, 'w') as repo_fd:
                    repo_fd.write(repo_content)
            except EnvironmentError:
                print(
                    "Cannot write repo file to %s" % args.extract_repo_conf_to)
                return 1


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