Mercurial > public > mercurial-scm > hg
comparison mercurial/context.py @ 24818:8d7d0bf62f9f stable
annotate: prepare ancestry context of workingfilectx
_ancestrycontext is necessary for fast lookup of _changeid. Because we can't
compute the ancestors from wctx, we skip to its parents. 'None' is not needed
to be included in _ancestrycontext because it is used for a membership test
of filelog revisions.
repo: https://hg.mozilla.org/releases/mozilla-beta/#062e49bcb2da
command: hg annotate -r 'wdir()' gfx/thebes/gfxWindowsPlatform.cpp
before: 51.520 sec
after: 1.780 sec
| author | Yuya Nishihara <yuya@tcha.org> |
|---|---|
| date | Sat, 18 Apr 2015 15:27:03 +0900 |
| parents | 0bb98eee531d |
| children | c82d88dfaf59 |
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| 24817:0bb98eee531d | 24818:8d7d0bf62f9f |
|---|---|
| 904 # use linkrev to find the first changeset where self appeared | 904 # use linkrev to find the first changeset where self appeared |
| 905 base = self | 905 base = self |
| 906 introrev = self.introrev() | 906 introrev = self.introrev() |
| 907 if self.rev() != introrev: | 907 if self.rev() != introrev: |
| 908 base = self.filectx(self.filenode(), changeid=introrev) | 908 base = self.filectx(self.filenode(), changeid=introrev) |
| 909 if introrev and getattr(base, '_ancestrycontext', None) is None: | 909 if getattr(base, '_ancestrycontext', None) is None: |
| 910 ac = self._repo.changelog.ancestors([introrev], inclusive=True) | 910 cl = self._repo.changelog |
| 911 if introrev is None: | |
| 912 # wctx is not inclusive, but works because _ancestrycontext | |
| 913 # is used to test filelog revisions | |
| 914 ac = cl.ancestors([p.rev() for p in base.parents()], | |
| 915 inclusive=True) | |
| 916 else: | |
| 917 ac = cl.ancestors([introrev], inclusive=True) | |
| 911 base._ancestrycontext = ac | 918 base._ancestrycontext = ac |
| 912 | 919 |
| 913 # This algorithm would prefer to be recursive, but Python is a | 920 # This algorithm would prefer to be recursive, but Python is a |
| 914 # bit recursion-hostile. Instead we do an iterative | 921 # bit recursion-hostile. Instead we do an iterative |
| 915 # depth-first search. | 922 # depth-first search. |