Mercurial > hg-stable
comparison mercurial/manifest.py @ 24350:7002ad149f30
manifest: speed up matches for large sets of files
If the number of files being matched is large, the bisection overhead
can dominate, which caused a performance regression for revert --all
and histedit. This introduces a (fairly arbitrary) cross-over from
using bisections to bulk search.
| author | Matt Mackall <mpm@selenic.com> |
|---|---|
| date | Wed, 18 Mar 2015 13:37:18 -0500 |
| parents | 149cc171e4a0 |
| children | 9e03602cd2d8 |
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| 24349:389693a245fa | 24350:7002ad149f30 |
|---|---|
| 162 '''generate a new manifest filtered by the match argument''' | 162 '''generate a new manifest filtered by the match argument''' |
| 163 if match.always(): | 163 if match.always(): |
| 164 return self.copy() | 164 return self.copy() |
| 165 | 165 |
| 166 files = match.files() | 166 files = match.files() |
| 167 if (match.matchfn == match.exact or | 167 if ((match.matchfn == match.exact and len(files) < 100) or |
| 168 (not match.anypats() and util.all(fn in self for fn in files))): | 168 (not match.anypats() and util.all(fn in self for fn in files))): |
| 169 return self.intersectfiles(files) | 169 return self.intersectfiles(files) |
| 170 | 170 |
| 171 lm = manifestdict('') | 171 lm = manifestdict('') |
| 172 lm._lm = self._lm.filtercopy(match) | 172 lm._lm = self._lm.filtercopy(match) |