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Issue 29884571: Issue 6945 - Add script to make filter list diffs (Closed) Base URL: https://hg.adblockplus.org/python-abp/
Patch Set: Fix docstring Created Sept. 26, 2018, 6:20 p.m.
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1 # This file is part of Adblock Plus <https://adblockplus.org/>,
2 # Copyright (C) 2006-present eyeo GmbH
3 #
4 # Adblock Plus is free software: you can redistribute it and/or modify
5 # it under the terms of the GNU General Public License version 3 as
6 # published by the Free Software Foundation.
7 #
8 # Adblock Plus is distributed in the hope that it will be useful,
9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 # GNU General Public License for more details.
12 #
13 # You should have received a copy of the GNU General Public License
14 # along with Adblock Plus. If not, see <http://www.gnu.org/licenses/>.
15
16 """Command line script for rendering Adblock Plus filter list diffs."""
17
18 from __future__ import print_function
19
20 import argparse
21 import io
22 import sys
23
24 from .renderer import render_diff
25
26 __all__ = ['main']
27
28
29 def parse_args():
30 parser = argparse.ArgumentParser(description='Render a filter list diff.')
31 parser.add_argument(
32 'base', help='the older filter list that needs to be updated',
33 nargs='?')
34 parser.add_argument(
35 'latest', help='the most recent version of the filter list',
36 nargs='?')
37 parser.add_argument(
38 'outfile', help='output file for filter list diff',
39 default='-', nargs='?')
40 return parser.parse_args()
41
42
43 def main():
44 """Entry point for the diff rendering script (fldiff)."""
45 args = parse_args()
46
47 with io.open(args.base, 'r', encoding='utf-8') as base, \
48 io.open(args.latest, 'r', encoding='utf-8') as latest:
49
50 lines = render_diff(base, latest)
51 if args.outfile == '-':
52 outfile = io.open(sys.stdout.fileno(), 'w',
53 closefd=False,
54 encoding=sys.stdout.encoding or 'utf-8')
55 else:
56 outfile = io.open(args.outfile, 'w', encoding='utf-8')
57
58 with outfile:
59 for line in lines:
60 print(line, file=outfile)
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