Eric Fiselier | 2d9feb5 | 2015-03-20 22:09:29 +0000 | [diff] [blame] | 1 | #!/usr/bin/env python |
| 2 | """ |
| 3 | sym_diff - Compare two symbol lists and output the differences. |
| 4 | """ |
Eric Fiselier | 2d9feb5 | 2015-03-20 22:09:29 +0000 | [diff] [blame] | 5 | from argparse import ArgumentParser |
| 6 | import sys |
| 7 | from sym_check import diff, util |
| 8 | |
| 9 | |
| 10 | def main(): |
| 11 | parser = ArgumentParser( |
| 12 | description='Extract a list of symbols from a shared library.') |
| 13 | parser.add_argument( |
| 14 | '--names-only', dest='names_only', |
| 15 | help='Only print symbol names', |
| 16 | action='store_true', default=False) |
| 17 | parser.add_argument( |
| 18 | '-o', '--output', dest='output', |
| 19 | help='The output file. stdout is used if not given', |
| 20 | type=str, action='store', default=None) |
| 21 | parser.add_argument( |
| 22 | '--demangle', dest='demangle', action='store_true', default=False) |
| 23 | parser.add_argument( |
| 24 | 'old_syms', metavar='old-syms', type=str, |
| 25 | help='The file containing the old symbol list or a library') |
| 26 | parser.add_argument( |
| 27 | 'new_syms', metavar='new-syms', type=str, |
| 28 | help='The file containing the new symbol list or a library') |
| 29 | args = parser.parse_args() |
| 30 | |
| 31 | old_syms_list = util.extract_or_load(args.old_syms) |
| 32 | new_syms_list = util.extract_or_load(args.new_syms) |
| 33 | |
| 34 | added, removed, changed = diff.diff(old_syms_list, new_syms_list) |
| 35 | report, is_break = diff.report_diff(added, removed, changed, |
| 36 | names_only=args.names_only, |
| 37 | demangle=args.demangle) |
| 38 | if args.output is None: |
| 39 | print(report) |
| 40 | else: |
| 41 | with open(args.output, 'w') as f: |
| 42 | f.write(report + '\n') |
| 43 | sys.exit(is_break) |
| 44 | |
| 45 | |
| 46 | if __name__ == '__main__': |
| 47 | main() |