Mercurial > hg
view contrib/lock-checker.py @ 21575:8262c2a39ab8
revert: add some inline comments
I spend some time understanding how this part of the revert code is
working. I'm adding some comments to help the code readability. I
expect most of them to disappear in a coming refactoring. But the
refactoring should be easier to follow with the comment.
author | Pierre-Yves David <pierre-yves.david@fb.com> |
---|---|
date | Tue, 13 May 2014 16:29:42 -0700 |
parents | 47d0843647d1 |
children |
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"""Extension to verify locks are obtained in the required places. This works by wrapping functions that should be surrounded by a lock and asserting the lock is held. Missing locks are called out with a traceback printed to stderr. This currently only checks store locks, not working copy locks. """ import os from mercurial import util def _checklock(repo): l = repo._lockref and repo._lockref() if l is None or not l.held: util.debugstacktrace('missing lock', skip=1) def reposetup(ui, repo): orig = repo.__class__ class lockcheckrepo(repo.__class__): def _writejournal(self, *args, **kwargs): _checklock(self) return orig._writejournal(self, *args, **kwargs) def transaction(self, *args, **kwargs): _checklock(self) return orig.transaction(self, *args, **kwargs) # TODO(durin42): kiilerix had a commented-out lock check in # _writebranchcache and _writerequirements def _tag(self, *args, **kwargs): _checklock(self) return orig._tag(self, *args, **kwargs) def write(self, *args, **kwargs): assert os.path.lexists(self._join('.hg/wlock')) return orig.write(self, *args, **kwargs) repo.__class__ = lockcheckrepo