Mercurial > hg
comparison mercurial/revlog.py @ 14075:bc101902a68d
revlog: introduce _chunkbase to allow filelog to override
Used by revlog.revision to retrieve the base-chunk in a delta chain.
| author | Sune Foldager <cryo@cyanite.org> |
|---|---|
| date | Sat, 30 Apr 2011 16:33:47 +0200 |
| parents | e4bfb9c337f3 |
| children | bd1cbfe5db5c |
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| 14074:e8271159c8c2 | 14075:bc101902a68d |
|---|---|
| 820 return self._getchunk(start, length) | 820 return self._getchunk(start, length) |
| 821 | 821 |
| 822 def _chunk(self, rev): | 822 def _chunk(self, rev): |
| 823 return decompress(self._chunkraw(rev, rev)) | 823 return decompress(self._chunkraw(rev, rev)) |
| 824 | 824 |
| 825 def _chunkbase(self, rev): | |
| 826 return self._chunk(rev) | |
| 827 | |
| 825 def _chunkclear(self): | 828 def _chunkclear(self): |
| 826 self._chunkcache = (0, '') | 829 self._chunkcache = (0, '') |
| 827 | 830 |
| 828 def deltaparent(self, rev): | 831 def deltaparent(self, rev): |
| 829 """return previous revision or parentrev according to flags""" | 832 """return previous revision or parentrev according to flags""" |
| 882 # drop cache to save memory | 885 # drop cache to save memory |
| 883 self._cache = None | 886 self._cache = None |
| 884 | 887 |
| 885 self._chunkraw(base, rev) | 888 self._chunkraw(base, rev) |
| 886 if text is None: | 889 if text is None: |
| 887 text = self._chunk(base) | 890 text = self._chunkbase(base) |
| 888 | 891 |
| 889 bins = [self._chunk(r) for r in chain] | 892 bins = [self._chunk(r) for r in chain] |
| 890 text = mdiff.patches(text, bins) | 893 text = mdiff.patches(text, bins) |
| 891 | 894 |
| 892 text = self._checkhash(text, node, rev) | 895 text = self._checkhash(text, node, rev) |