2019-01-27 20:26:50 -08:00

141 lines
4.2 KiB
Python

#!/usr/bin/env python
""" Delete packages from a repository.
Functions:
move_pkgfiles(repo, files=None)
repo_add(repo, opts, filelist)
clear_cachedir(repo)
"""
import argparse
import logging
import pathlib
import subprocess
import sys
import packaging_scripts.pacmanconf as pacmanconf
import packaging_scripts.pkgfiles as pkgfiles
console_formatter = logging.Formatter('==> %(level)s %(message)s')
syslog = logging.getLogger(__name__)
syslog.setLevel(logging.DEBUG)
stdout_handler = logging.StreamHandler(sys.stdout)
stdout_handler.setLevel(logging.INFO)
stdout_handler.setFormatter(console_formatter)
stderr_handler = logging.StreamHandler()
stderr_handler.setLevel(logging.ERROR)
stderr_handler.setFormatter(console_formatter)
syslog.addHandler(stdout_handler)
syslog.addHandler(stderr_handler)
def del_pkgfiles(repo, pkgs):
""" Remove package files from the repository directory.
Parameters:
repo: the repository to delete from
pkgs: a list of packages to remove
"""
syslog.info('Removing package files from cachedir')
cachedir = pathlib.Path(f'/var/cache/pacman/{repo}')
syslog.debug(f"Cache directory: {cachedir}")
syslog.debug(f"Packages: {pkgs}")
for pkg in pkgs:
for pkgfile in cachedir.glob(f"{pkg}*.pkg.tar.xz*"):
pkgfile.unlink()
syslog.info(f"Removed {pkgfile}")
def repo_remove(repo, pkgs, opts=None):
""" Run repo-remove.
Parameters:
repo: the repository to remove from
pkgs: the names of the packages to remove
opts: the list of options to pass to repo-remove
Raises:
subprocess.CalledProcessError if repo-add failed
"""
syslog.info('Removing packages from database')
syslog.debug(f"Options: {opts}")
syslog.debug(f"Packages: {pkgs}")
db = pathlib.Path(f"/var/cache/pacman/{repo}/{repo}.db.tar.xz")
cmd = ['repo-remove']
if opts is not None:
cmd.extend(opts)
cmd.append(str(db))
cmd.extend(pkgs)
syslog.debug(f"Final repo-remove command: {cmd}")
remove_process = subprocess.run(cmd,
check=True,
capture_output=True,
text=True)
syslog.debug(remove_process.stdout)
if remove_process.stderr:
syslog.error(remove_process.stderr)
syslog.info('Finished removing packages from database')
def clean_cachedir(repo):
""" Run paccache """
syslog.info('Running paccache')
subprocess.run(['paccache',
'--remove',
'--verbose',
'--keep=1',
f"--cachedir=/var/cache/pacman/{repo}"])
syslog.info('Finished running paccache')
if __name__ == '__main__':
parser = argparse.ArgumentParser()
parser.add_argument('-c', '--clean-cachedir',
action='store_true',
help='use paccache to clean the cache directory')
parser.add_argument('-s', '--sign',
dest='opts',
action='append_const',
const='--sign',
help='sign repository file')
parser.add_argument('-v', '--verbose',
action='store_true',
help='increase script verbosity')
parser.add_argument('repository',
choices=pacmanconf.list_configured_repos(),
help='the repository to operate on',
metavar='repo')
parser.add_argument('packages',
default=None,
nargs='+',
help='packages to remove')
args = parser.parse_args()
repo = args.repository
pkgs = args.packages
opts = args.opts
clean = args.clean_cachedir
if args.verbose:
stdout_handler.setLevel(logging.DEBUG)
if not pathlib.Path(f"/var/cache/pacman/{args.repository}").is_dir():
syslog.critical(f"Not a repository: {repo}")
del_pkgfiles(repo, pkgs)
try:
repo_remove(repo, pkgs, opts)
except subprocess.CalledProcessError as e:
syslog.error(e)
exit(2)
if clean:
clean_cachedir(repo)