Get version information for package(s) in a PPA

ppa.py

#!/usr/bin/python3
# Author: Chris Johnston <cjohnston@ubuntu.com>
# Initial inspiration from:
# https://gist.github.com/nathan-osman/b9158d058cc45916dcd20a591b66d0b4
from argparse import ArgumentParser
from sys import exit

try:
    from launchpadlib.launchpad import Launchpad
    from tabulate import tabulate
except ImportError:
    print("python3-launchpadlib and python3-tabulate are required")
    exit(1)


cachedir = "~/.launchpadlib/cache/"


def login(args):
    if args.staging:
        lp = Launchpad.login_anonymously(
            'PPA Testing',
            'staging',
            cachedir,
            version='devel',
        )
    else:
        lp = Launchpad.login_anonymously(
            'PPA Testing',
            'production',
            cachedir,
            version='devel',
        )
    return lp


def fetch_packages(args):
    launchpad = login(args)
    user = launchpad.people[args.user]
    archive = user.getPPAByName(name=args.ppa)
    print("Retrieving packages...\n\n")
    d = []
    packages = archive.getPublishedBinaries(
        binary_name=args.package,
        exact_match=args.exact,
        status=args.status,
    )
    for b in packages:
        s = b.distro_arch_series
        d.append((
            b.binary_package_name,
            b.binary_package_version,
            s.display_name,
        ))
    print(tabulate(d, headers=(
        'Name',
        'Version',
        'Series',
    )))


def parse_arguements(args=None):
    parser = ArgumentParser(prog='ppa')
    parser.add_argument(
        '-v', '--verbosity', action='store', dest='verbosity', default=1,
        type=int, choices=[1, 2, 3], help='Verbosity level; 1=errors only, '
        '2=verbose output, 3=very verbose output. NOTE: currently only '
        'supports httplib2.debuglevel 1',
    )
    parser.add_argument(
        '--staging',
        help="If passed, uses the staging instance of Launchpad.",
        action="store_true",
        required=False,
    )
    subparsers = parser.add_subparsers(title='actions', help='commands')
    packages_parser = subparsers.add_parser(
        'packages',
        help="Get infomration about packages in a PPA",
    )
    packages_parser.add_argument(
        '--user',
        help="PPA Owner's Launchpad ID (can be a team)",
        required=True,
    )
    packages_parser.add_argument(
        '--ppa',
        help="Launchpad ID or team name and name of PPA to look at",
        required=True,
    )
    packages_parser.add_argument(
        '--package',
        help="Name of package to look at. Leaving blank will print all",
        required=False,
    )
    packages_parser.add_argument(
        '--exact',
        help="If passed, only get packages that match the exact name.",
        action="store_true",
        required=False,
    )
    packages_parser.add_argument(
        '--status',
        help="View packages with a specific status. Default: Published",
        required=False,
        default="Published",
        choices=["Pending", "Published", "Superseded", "Deleted", "Obsolete"],
    )
    packages_parser.set_defaults(func=fetch_packages)
    return parser.parse_args(args)


def main(args=None):
    try:
        args = parse_arguements(args)
        if args.verbosity > 1:
            import httplib2
            httplib2.debuglevel = 1
        args.func(args)
        return 0
    except Exception:
        return 1


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