1#!/usr/bin/env python
2"""
3sym_match - Match all symbols in a list against a list of regexes.
4"""
5from argparse import ArgumentParser
6import sys
7from sym_check import util, match, extract
8
9
10def main():
11    parser = ArgumentParser(
12        description='Extract a list of symbols from a shared library.')
13    parser.add_argument(
14        '--blacklist', dest='blacklist',
15        type=str, action='store', default=None)
16    parser.add_argument(
17        'symbol_list', metavar='symbol_list', type=str,
18        help='The file containing the old symbol list')
19    parser.add_argument(
20        'regexes', metavar='regexes', default=[], nargs='*',
21        help='The file containing the new symbol list or a library')
22    args = parser.parse_args()
23
24    if not args.regexes and args.blacklist is None:
25        sys.stderr.write('Either a regex or a blacklist must be specified.\n')
26        sys.exit(1)
27    if args.blacklist:
28        search_list = util.read_blacklist(args.blacklist)
29    else:
30        search_list = args.regexes
31
32    symbol_list = util.extract_or_load(args.symbol_list)
33
34    matching_count, report = match.find_and_report_matching(
35        symbol_list, search_list)
36    sys.stdout.write(report)
37    if matching_count != 0:
38        print('%d matching symbols found...' % matching_count)
39
40
41if __name__ == '__main__':
42    main()
43