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comparison mercurial/manifest.py @ 44286:bbecb6d80aa7

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manifest: rewrite filesnotin to not make superfluous manifest copies This also skips using diff() when all we care about is the filenames. I'm expecting the built in set logic to be plenty fast. For really large manifests with a matcher in play this should copy substantially less data around. Differential Revision: https://phab.mercurial-scm.org/D8082
author Augie Fackler <augie@google.com>
date Wed, 05 Feb 2020 16:58:50 -0500
parents 63d84c18247a
children 0bf3b5e80d30
comparison
equal deleted inserted replaced
44285:63d84c18247a 44286:bbecb6d80aa7
21 ) 21 )
22 from .pycompat import getattr 22 from .pycompat import getattr
23 from . import ( 23 from . import (
24 encoding, 24 encoding,
25 error, 25 error,
26 match as matchmod,
26 mdiff, 27 mdiff,
27 pathutil, 28 pathutil,
28 policy, 29 policy,
29 pycompat, 30 pycompat,
30 revlog, 31 revlog,
480 def keys(self): 481 def keys(self):
481 return list(self.iterkeys()) 482 return list(self.iterkeys())
482 483
483 def filesnotin(self, m2, match=None): 484 def filesnotin(self, m2, match=None):
484 '''Set of files in this manifest that are not in the other''' 485 '''Set of files in this manifest that are not in the other'''
485 if match: 486 if match is not None:
486 m1 = self.matches(match) 487 match = matchmod.badmatch(match, lambda path, msg: None)
487 m2 = m2.matches(match) 488 sm2 = set(m2.walk(match))
488 return m1.filesnotin(m2) 489 return {f for f in self.walk(match) if f not in sm2}
489 diff = self.diff(m2) 490 return {f for f in self if f not in m2}
490 files = set(
491 filepath
492 for filepath, hashflags in pycompat.iteritems(diff)
493 if hashflags[1][0] is None
494 )
495 return files
496 491
497 @propertycache 492 @propertycache
498 def _dirs(self): 493 def _dirs(self):
499 return pathutil.dirs(self) 494 return pathutil.dirs(self)
500 495