debbindiff.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# debbindiff: highlight differences between two builds of Debian packages
#
# Copyright © 2014 Jérémy Bobbio <lunar@debian.org>
#
# debdindiff 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 3 of the License, or
# (at your option) any later version.
#
# debbindiff 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 debbindiff.  If not, see <http://www.gnu.org/licenses/>.

from __future__ import print_function

import argparse
import logging
import sys
from debbindiff import logger
import debbindiff.comparators
from debbindiff.presenters.html import output_html

def create_parser():
    parser = argparse.ArgumentParser(description='Highlight differences between two builds of Debian packages')
    parser.add_argument('--debug', dest='debug', action='store_true', default=False)
    parser.add_argument('--html', metavar='output', dest='html_output', type=argparse.FileType('w'))
    parser.add_argument('file1', help='first file to compare')
    parser.add_argument('file2', help='second file to compare')
    return parser

def main():
    parser = create_parser()
    parsed_args = parser.parse_args(sys.argv[1:])
    if parsed_args.debug:
        logger.setLevel(logging.DEBUG)
    differences = debbindiff.comparators.compare_files(parsed_args.file1, parsed_args.file2)
    if parsed_args.html_output:
        def print_func(*args, **kwargs):
            kwargs['file'] = parsed_args.html_output
            print(*args, **kwargs)
        output_html(differences, print_func=print_func)
    if len(differences) > 0:
        sys.exit(1)

if __name__ == '__main__':
    main()