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| | |
| | """ |
| | sym_diff - Compare two symbol lists and output the differences. |
| | """ |
| |
|
| | from argparse import ArgumentParser |
| | import sys |
| | from libcxx.sym_check import diff, util |
| |
|
| |
|
| | def main(): |
| | parser = ArgumentParser( |
| | description='Extract a list of symbols from a shared library.') |
| | parser.add_argument( |
| | '--names-only', dest='names_only', |
| | help='Only print symbol names', |
| | action='store_true', default=False) |
| | parser.add_argument( |
| | '--removed-only', dest='removed_only', |
| | help='Only print removed symbols', |
| | action='store_true', default=False) |
| | parser.add_argument('--only-stdlib-symbols', dest='only_stdlib', |
| | help="Filter all symbols not related to the stdlib", |
| | action='store_true', default=False) |
| | parser.add_argument('--strict', dest='strict', |
| | help="Exit with a non-zero status if any symbols " |
| | "differ", |
| | action='store_true', default=False) |
| | parser.add_argument( |
| | '-o', '--output', dest='output', |
| | help='The output file. stdout is used if not given', |
| | type=str, action='store', default=None) |
| | parser.add_argument( |
| | '--demangle', dest='demangle', action='store_true', default=False) |
| | parser.add_argument( |
| | 'old_syms', metavar='old-syms', type=str, |
| | help='The file containing the old symbol list or a library') |
| | parser.add_argument( |
| | 'new_syms', metavar='new-syms', type=str, |
| | help='The file containing the new symbol list or a library') |
| | args = parser.parse_args() |
| |
|
| | old_syms_list = util.extract_or_load(args.old_syms) |
| | new_syms_list = util.extract_or_load(args.new_syms) |
| |
|
| | if args.only_stdlib: |
| | old_syms_list, _ = util.filter_stdlib_symbols(old_syms_list) |
| | new_syms_list, _ = util.filter_stdlib_symbols(new_syms_list) |
| |
|
| | added, removed, changed = diff.diff(old_syms_list, new_syms_list) |
| | if args.removed_only: |
| | added = {} |
| | report, is_break, is_different = diff.report_diff( |
| | added, removed, changed, names_only=args.names_only, |
| | demangle=args.demangle) |
| | if args.output is None: |
| | print(report) |
| | else: |
| | with open(args.output, 'w') as f: |
| | f.write(report + '\n') |
| | exit_code = 1 if is_break or (args.strict and is_different) else 0 |
| | sys.exit(exit_code) |
| |
|
| | if __name__ == '__main__': |
| | main() |
| |
|
