borg-repo-object-counter.py

"""
{[0]} path/to/repo
Show object summary in a borg repository.
That is, amount of objects currently still without a delete,
amount of objects that are deleted and amount of delete markers
"""

import sys

from borg.repository import Repository, TAG_PUT, TAG_DELETE

if len(sys.argv) != 2:
    print(__doc__.format(sys.argv))
    sys.exit(0)

print("Pointed at repo:", sys.argv[1])

repo = Repository(sys.argv[1], create=False, exclusive=True, lock_wait=None, lock=True, append_only=False)
with repo as r:
    r.index = r.open_index(r.get_transaction_id(), False)
    objs_free = 0
    objs_used = 0
    objs_delete = 0
    for i, (segment, filename) in enumerate(r.io.segment_iterator()):
        segment_size = r.io.segment_size(segment)
        for tag, key, offset, data in r.io.iter_objects(segment, include_data=False):
            if tag == TAG_PUT and r.index.get(key, (-1, -1)) == (segment, offset):
                objs_used += 1
            elif tag == TAG_PUT:
                objs_free += 1
            elif tag == TAG_DELETE:
                objs_delete += 1

    print("chunks: used ", objs_used, " free ", objs_free, " delete ", objs_delete)