#!/usr/bin/env python
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from __future__ import print_function

import sys
import rosbag.migration

if __name__ == '__main__':
    if len(sys.argv) < 3:
        print('usage: fixbag.py <inbag> <outbag> [rulefile1, rulefile2, ...]')
        exit(2)

    if sys.argv[2].split('.')[-1] == 'bmr':
        print('Second argument should be a bag, not a rule file.', file=sys.stderr)
        exit(2)

    mm = rosbag.migration.MessageMigrator(sys.argv[3:])
    if not rosbag.migration.fixbag(mm, sys.argv[1], sys.argv[2]):
        print('Bag could not be migrated.')
        exit(1)

    print('Bag migrated successfully.')
    exit(0)