mercurial/branching/rev_cache.py

51901:f0e07efc199f

    def _writerevs(self, repo, start):
        """write the new revs to revbranchcache"""
        revs = min(len(repo.changelog), len(self._rbcrevs) // _rbcrecsize)
        with repo.cachevfs.open(_rbcrevs, b'ab') as f:
            if f.tell() != start:
                repo.ui.debug(
                    b"truncating cache/%s to %d\n" % (_rbcrevs, start)
                )
                f.seek(start)
                if f.tell() != start:
                    start = 0
                    f.seek(start)
                f.truncate()
            end = revs * _rbcrecsize
            f.write(self._rbcrevs.slice(start, end))
        self._rbcrevslen = revs

51902:1eb2317c1762

    def _writerevs(self, repo, start):
        """write the new revs to revbranchcache"""
        revs = min(len(repo.changelog), len(self._rbcrevs) // _rbcrecsize)
        with repo.cachevfs.open(_rbcrevs, b'ab') as f:
            current_size = f.tell()
            if current_size < start:
                start = 0
            if current_size != start:
                msg = b"truncating cache/%s to %d\n"
                msg %= (_rbcrevs, start)
                repo.ui.debug(msg)
                f.seek(start)
                f.truncate()
            end = revs * _rbcrecsize
            f.write(self._rbcrevs.slice(start, end))
        self._rbcrevslen = revs