Mercurial > hg-stable
view contrib/check-py3-compat.py @ 27930:7cbb3a01fa38 stable
repair: use cg3 for treemanifests
The newly created helper changegroup.safeversion() knows to pick
version 03 if the repo uses treemanifests, so just using that means we
pick the right changegroup version.
author | Martin von Zweigbergk <martinvonz@google.com> |
---|---|
date | Tue, 19 Jan 2016 15:38:24 -0800 |
parents | 35e69407b1ac |
children | ae522fb493d4 |
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#!/usr/bin/env python # # check-py3-compat - check Python 3 compatibility of Mercurial files # # Copyright 2015 Gregory Szorc <gregory.szorc@gmail.com> # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. from __future__ import absolute_import, print_function import ast import sys def check_compat(f): """Check Python 3 compatibility for a file.""" with open(f, 'rb') as fh: content = fh.read() # Ignore empty files. if not content.strip(): return root = ast.parse(content) futures = set() haveprint = False for node in ast.walk(root): if isinstance(node, ast.ImportFrom): if node.module == '__future__': futures |= set(n.name for n in node.names) elif isinstance(node, ast.Print): haveprint = True if 'absolute_import' not in futures: print('%s not using absolute_import' % f) if haveprint and 'print_function' not in futures: print('%s requires print_function' % f) if __name__ == '__main__': for f in sys.argv[1:]: check_compat(f) sys.exit(0)