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archrepo/scripts/remove_old_versions.py
Knut Ahlers 7c2a1c3578
Move repo to subdir, remove repoctl dependency
Signed-off-by: Knut Ahlers <knut@ahlers.me>
2021-10-20 21:25:37 +02:00

89 lines
2.5 KiB
Python

#!/usr/bin/env python3
import os
import re
import sys
# Available only on Archlinux systems through extra/pyalpm package
from pyalpm import vercmp
FILENAME_REGEX = r'^(?P<pkgname>.*)-(?P<version>(?:[0-9]+:)?(?:[^:-]+)-(?:[0-9]+))-[^-]+\.pkg\.tar\.(?:xz|zst)$'
base_path = os.environ['BASE_PATH'] if 'BASE_PATH' in os.environ else './repo'
retain_versions = int(os.environ['RETAIN']) if 'RETAIN' in os.environ else 2
class VercmpSort:
def __init__(self, obj, *args):
self.obj = obj
def __lt__(self, other):
return vercmp(self.obj['version'], other.obj['version']) < 0
def __gt__(self, other):
return vercmp(self.obj['version'], other.obj['version']) > 0
def __eq__(self, other):
return vercmp(self.obj['version'], other.obj['version']) == 0
def __le__(self, other):
return vercmp(self.obj['version'], other.obj['version']) <= 0
def __ge__(self, other):
return vercmp(self.obj['version'], other.obj['version']) >= 0
def __ne__(self, other):
return vercmp(self.obj['version'], other.obj['version']) != 0
def get_package_versions():
packages = {}
for filename in os.listdir(base_path):
match = re.match(FILENAME_REGEX, filename)
if match is None:
# Not a package file
continue
if match.group('pkgname') not in packages:
packages[match.group('pkgname')] = []
packages[match.group('pkgname')].append({
'filename': filename,
'version': match.group('version'),
})
return packages
def main():
packages = get_package_versions()
for pkgname in sorted(packages.keys()):
versions = packages[pkgname]
print('')
print('Analysing package "{}"...'.format(pkgname))
if len(versions) <= retain_versions:
print(' Retaining all versions: {}'.format(
', '.join([x['version'] for x in versions]),
))
continue
ndrop = len(versions) - retain_versions
versions = sorted(versions, key=VercmpSort)
drop = versions[:ndrop]
retain = versions[ndrop:]
print(' Dropped versions: {}'.format(
', '.join([x['version'] for x in drop]),
))
print(' Retained versions: {}'.format(
', '.join([x['version'] for x in retain]),
))
for filename in [x['filename'] for x in drop]:
os.unlink(os.path.join(base_path, filename))
return 0
if __name__ == '__main__':
sys.exit(main())