comparison mercurial/branchmap.py @ 25270:61b3529e2377

merge with stable

25269:46bf4983cf31

        """Return branch name and close flag for rev, using and updating
        persistent cache."""
        changelog = self._repo.changelog
        rbcrevidx = rev * _rbcrecsize

        # if requested rev is missing, add and populate all missing revs
        if len(self._rbcrevs) < rbcrevidx + _rbcrecsize:
            self._rbcrevs.extend('\0' * (len(changelog) * _rbcrecsize -
                                         len(self._rbcrevs)))

25270:61b3529e2377

        """Return branch name and close flag for rev, using and updating
        persistent cache."""
        changelog = self._repo.changelog
        rbcrevidx = rev * _rbcrecsize

        # avoid negative index, changelog.read(nullrev) is fast without cache
        if rev == nullrev:
            return changelog.branchinfo(rev)

        # if requested rev is missing, add and populate all missing revs
        if len(self._rbcrevs) < rbcrevidx + _rbcrecsize:
            self._rbcrevs.extend('\0' * (len(changelog) * _rbcrecsize -
                                         len(self._rbcrevs)))