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comparison mercurial/branchmap.py @ 25266:38117278f295 stable

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revbranchcache: return uncached branchinfo for nullrev (issue4683) This fixes the crash caused by "branch(null)" revset. No cache should be necessary for nullrev because changelog.branchinfo(nullrev) does not involve IO operation. Note that the problem of "branch(wdir())" isn't addressed by this patch. "wdir()" will raise TypeError in many places because of None. This is the reason why "wdir()" is still experimental.
author Yuya Nishihara <yuya@tcha.org>
date Sat, 23 May 2015 11:14:00 +0900
parents 75688a6f0bca
children 328739ea70c3
comparison
equal deleted inserted replaced
25265:e16456831516 25266:38117278f295
339 """Return branch name and close flag for rev, using and updating 339 """Return branch name and close flag for rev, using and updating
340 persistent cache.""" 340 persistent cache."""
341 changelog = self._repo.changelog 341 changelog = self._repo.changelog
342 rbcrevidx = rev * _rbcrecsize 342 rbcrevidx = rev * _rbcrecsize
343 343
344 # avoid negative index, changelog.read(nullrev) is fast without cache
345 if rev == nullrev:
346 return changelog.branchinfo(rev)
347
344 # if requested rev is missing, add and populate all missing revs 348 # if requested rev is missing, add and populate all missing revs
345 if len(self._rbcrevs) < rbcrevidx + _rbcrecsize: 349 if len(self._rbcrevs) < rbcrevidx + _rbcrecsize:
346 self._rbcrevs.extend('\0' * (len(changelog) * _rbcrecsize - 350 self._rbcrevs.extend('\0' * (len(changelog) * _rbcrecsize -
347 len(self._rbcrevs))) 351 len(self._rbcrevs)))
348 352