Mercurial > hg > mercurial-crew-with-dirclash
comparison mercurial/revlog.py @ 2490:6ff82ec1f4b8
Change revlog.heads to walk the revision graph using revision numbers
On the kernel repo:
$ hg heads -q
before after
RevlogNG 1.11 0.52
Revlogv0 0.80 0.69
Since the current code for tags has to find all the heads of the repo,
this also helps there:
$ hg tags
before after
RevlogNG 2.35 1.76
Revlogv0 2.04 1.90
| author | Alexis S. L. Carvalho <alexis@cecm.usp.br> |
|---|---|
| date | Tue, 20 Jun 2006 15:02:23 -0300 |
| parents | 568e58eed096 |
| children | c35694df7b13 |
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| 2489:568e58eed096 | 2490:6ff82ec1f4b8 |
|---|---|
| 711 start will be returned | 711 start will be returned |
| 712 | 712 |
| 713 """ | 713 """ |
| 714 if start is None: | 714 if start is None: |
| 715 start = nullid | 715 start = nullid |
| 716 reachable = {start: 1} | |
| 717 heads = {start: 1} | |
| 718 startrev = self.rev(start) | 716 startrev = self.rev(start) |
| 719 | 717 reachable = {startrev: 1} |
| 718 heads = {startrev: 1} | |
| 719 | |
| 720 parentrevs = self.parentrevs | |
| 720 for r in xrange(startrev + 1, self.count()): | 721 for r in xrange(startrev + 1, self.count()): |
| 721 n = self.node(r) | 722 for p in parentrevs(r): |
| 722 for pn in self.parents(n): | 723 if p in reachable: |
| 723 if pn in reachable: | 724 reachable[r] = 1 |
| 724 reachable[n] = 1 | 725 heads[r] = 1 |
| 725 heads[n] = 1 | 726 if p in heads: |
| 726 if pn in heads: | 727 del heads[p] |
| 727 del heads[pn] | 728 return [self.node(r) for r in heads] |
| 728 return heads.keys() | |
| 729 | 729 |
| 730 def children(self, node): | 730 def children(self, node): |
| 731 """find the children of a given node""" | 731 """find the children of a given node""" |
| 732 c = [] | 732 c = [] |
| 733 p = self.rev(node) | 733 p = self.rev(node) |