#!/usr/bin/env python
# -*- coding: utf-8 -*-

from __future__ import print_function

import argparse
import datetime
import json
import os
import sys
import time

if __name__ == '__main__':
    parser = argparse.ArgumentParser()
    parser.add_argument('cmd')
    opts = parser.parse_args()

    if opts.cmd != 'ostree':
        # Not an announcement of new ostree commit, nothing to do.
        sys.exit()

    try:
        data = json.load(sys.stdin)
    except ValueError:
        print('Failed to decode data', file=sys.stderr)
        sys.exit(1)

    repo = data['local_repo_path']
    commit = data['commitid']
    path = '%s/objects/%s/%s.commitmeta' % (repo, commit[:2], commit[2:])

    while not os.path.exists(path):
        print('%s: Commit not signed yet, waiting...'
              % datetime.datetime.utcnow())
        time.sleep(5)

    print('Found signature.')