#!/usr/bin/python3
#
# Copyright 2021-2022 Univention GmbH
#
# https://www.univention.de/
#
# All rights reserved.
#
# The source code of this program is made available
# under the terms of the GNU Affero General Public License version 3
# (GNU AGPL V3) as published by the Free Software Foundation.
#
# Binary versions of this program provided by Univention to you as
# well as other copyrighted, protected or trademarked materials like
# Logos, graphics, fonts, specific documentations and configurations,
# cryptographic keys etc. are subject to a license agreement between
# you and Univention and not subject to the GNU AGPL V3.
#
# In the case you use this program under the terms of the GNU AGPL V3,
# the program is provided in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public
# License with the Debian GNU/Linux or Univention distribution in file
# /usr/share/common-licenses/AGPL-3; if not, see
# <https://www.gnu.org/licenses/>.
"""
This script lists all currently installed packages that are not maintained by Univention.
"""
from argparse import ArgumentParser, FileType, Namespace
from os import get_terminal_size
from sys import exit, stdout
from textwrap import TextWrapper
from typing import IO, Set, Tuple
import apt
MAINTAINED_PACKAGES = '/usr/share/univention-errata-level/maintained-packages.txt'
[docs]def main() -> int:
args = parse_args()
installed_unmaintained_packages = get_unmaintained_packages(args.maintained)
print_packages(installed_unmaintained_packages)
return 1 if installed_unmaintained_packages else 0
[docs]def parse_args() -> Namespace:
parser = ArgumentParser(description=__doc__)
parser.add_argument(
"--maintained", "-m",
default=MAINTAINED_PACKAGES,
type=FileType("r"),
help="List of maintained packages [%(default)s]")
return parser.parse_args()
[docs]def get_unmaintained_packages(maintained: IO[str]) -> Set[str]:
installed_packages, installed_from_maintained_repo = get_installed_packages()
maintained_packages = get_maintained_packages(maintained)
return installed_packages - maintained_packages - installed_from_maintained_repo
[docs]def get_installed_packages() -> Tuple[Set[str], Set[str]]:
cache = apt.Cache()
installed_packages = set()
from_maintained_repo = set()
for package in cache:
if cache[package.name].is_installed:
installed_packages.add(package.name)
# maintained components
if next((True for i in package.candidate.uris if '/maintained/component/' in i), False):
# TODO also test package.candidate.origins
# [<Origin component:'' archive:'' origin:'Univention' label:'Univention' site:'appcenter.software-univention.de' isTrusted:True>,
# <Origin component:'now' archive:'now' origin:'' label:'' site:'' isTrusted:False>]
# e.g. site is appcenter.software-univention.de or service.univention.de, or isTrusted is True
from_maintained_repo.add(package.name)
return installed_packages, from_maintained_repo
[docs]def get_maintained_packages(maintained: IO[str]) -> Set[str]:
return set(line.strip() for line in maintained)
[docs]def print_packages(packages: Set[str]) -> None:
if packages:
print_unmaintained_packages(packages)
else:
print_all_maintained()
[docs]def print_unmaintained_packages(packages: Set[str]) -> None:
print('The following packages are unmaintained:')
print_wrapped(' '.join(sorted(packages)))
[docs]def print_wrapped(text: str) -> None:
wrapper = TextWrapper(
width=get_columns() - 20,
initial_indent=' ',
subsequent_indent=' ',
break_long_words=False,
break_on_hyphens=False,
)
print('\n'.join(wrapper.wrap(text)))
[docs]def get_columns() -> int:
return get_terminal_size().columns if stdout.isatty() else 80
[docs]def print_all_maintained():
print('No unmaintained packages installed.')
if __name__ == '__main__':
exit(main())
