nvchecker/nvchecker_source/alpm.py

45 lines
1.2 KiB
Python

# MIT licensed
# Copyright (c) 2020-2021 DDoSolitary <DDoSolitary@gmail.com>, et al.
from nvchecker.api import GetVersionError
from pyalpm import Handle
async def open_db(info):
dbpath, repo = info
handle = Handle('/', dbpath)
db = handle.register_syncdb(repo, 0)
return handle, db
async def get_version(name, conf, *, cache, **kwargs):
pkgname = conf.get('alpm', name)
dbpath = conf.get('dbpath', '/var/lib/pacman')
strip_release = conf.get('strip_release', False)
provided = conf.get('provided')
repo = conf.get('repo')
if repo is None:
repos = ['core', 'extra', 'community', 'multilib']
else:
repos = [repo]
for repo in repos:
db = (await cache.get((dbpath, repo), open_db))[1]
pkg = db.get_pkg(pkgname)
if pkg is not None:
break
if pkg is None:
raise GetVersionError('package not found in the ALPM database')
if provided is None:
version = pkg.version
else:
provides = dict(x.split('=', 1) for x in pkg.provides if '=' in x)
version = provides.get(provided)
if version is None:
raise GetVersionError('provides element not found')
if strip_release:
version = version.split('-', 1)[0]
return version