gistfile1.txt

#!/usr/bin/python3

# ostree-delete-refs - Delete refs from ostree repositories
# Copyright (C) 2016  Dan Nicholson <nicholson@endlessm.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

from argparse import ArgumentParser
import eosostree
import fnmatch
import gi
gi.require_version('OSTree', '1.0')
from gi.repository import Gio, OSTree

# On public server by default
REPO_BASE = eosostree.CONFIG['public-repo-base']

parser = ArgumentParser(description='Delete commit references in ostree repositories')
parser.add_argument('repo', metavar='REPO',
                    help='name of repository to use')
parser.add_argument('stage', metavar='STAGE',
                    help='repository stage to use')
parser.add_argument('refs', metavar='REF', nargs='+',
                    help='refs to delete, can use globbing')
parser.add_argument('-n', '--dry-run', action='store_true',
                    help='show commands that would be run')
parser.add_argument('--base', default=REPO_BASE,
                    help='base path for repos (default: %s)' % REPO_BASE)
parser.add_argument('--release', action='store_true',
                    help='remove corresponding release refs')
args = parser.parse_args()

path = eosostree.staged_repo_path(args.repo, base=args.base,
                                  stage=args.stage)
repo_file = Gio.File.new_for_path(path)
repo = eosostree.EosOSTreeRepo(path=repo_file)
repo.open(None)

# Find all the refs that need to be deleted
_, all_refs_info = repo.list_refs(None, None)
all_refs = sorted(all_refs_info.keys())
delete_refs = set()
for pattern in args.refs:
    delete_refs.update(fnmatch.filter(all_refs, pattern))

# Delete the associated release refs if wanted
if args.release:
    for refspec in delete_refs.copy():
        _, remote, ref = OSTree.parse_refspec(refspec)
        info = eosostree.ref_info(ref)
        if info['release']:
            continue
        if not info['tag_prefix']:
            # Not a releasable ref
            continue

        # Construct a pattern that finds all the releases for this
        # series
        rel_pattern = ''
        if remote is not None:
            rel_pattern += remote + ':'
        rel_pattern += '%s/%s.*' %(info['tag_prefix'], info['major'])
        delete_refs.update(fnmatch.filter(all_refs, rel_pattern))

if len(delete_refs) == 0:
    print('No refs found to delete')
    exit(0)

for refspec in sorted(delete_refs):
    print('Deleting ref', refspec)
    _, remote, ref = OSTree.parse_refspec(refspec)
    if not args.dry_run:
        repo.set_ref_immediate(remote, ref, None, None)

eosostree.update_repo(repo, dry_run=args.dry_run)