find-bad-commit.py

#!/usr/bin/python3 -u

from argparse import ArgumentParser
from gi import require_version
require_version('OSTree', '1.0')
from gi.repository import GLib, Gio, OSTree
import sys

aparser = ArgumentParser(
    description='Find commits that have missing objects'
)
aparser.add_argument('--repo', help='repository path')
args = aparser.parse_args()

if args.repo is None:
    repo = OSTree.Repo.new_default()
else:
    repo_file = Gio.File.new_for_path(args.repo)
    repo = OSTree.Repo.new(repo_file)
repo.open(None)

_, all_objects = repo.list_objects(OSTree.RepoListObjectsFlags.ALL, None)
for objname in all_objects:
    checksum, objtype = OSTree.object_name_deserialize(objname)
    if objtype != OSTree.ObjectType.COMMIT:
        continue
    try:
        repo.traverse_commit(checksum, 0)
    except GLib.Error as err:
        if not err.matches(Gio.io_error_quark(),
                           Gio.IOErrorEnum.NOT_FOUND):
            raise
        print('Commit', checksum, 'failed:', err.message)