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comparison mercurial/scmutil.py @ 38856:a01200b25da6

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shortest: use 'x' prefix to disambiguate from revnum if configured Differential Revision: https://phab.mercurial-scm.org/D4042
author Martin von Zweigbergk <martinvonz@google.com>
date Mon, 16 Apr 2018 23:49:38 -0700
parents 7848f284b211
children ad88726d6982
comparison
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38855:7848f284b211 38856:a01200b25da6
488 # which would be unacceptably slow. so we look for hash collision in 488 # which would be unacceptably slow. so we look for hash collision in
489 # unfiltered space, which means some hashes may be slightly longer. 489 # unfiltered space, which means some hashes may be slightly longer.
490 490
491 def disambiguate(prefix): 491 def disambiguate(prefix):
492 """Disambiguate against revnums.""" 492 """Disambiguate against revnums."""
493 if repo.ui.configbool('experimental', 'revisions.prefixhexnode'):
494 if mayberevnum(repo, prefix):
495 return 'x' + prefix
496 else:
497 return prefix
498
493 hexnode = hex(node) 499 hexnode = hex(node)
494 for length in range(len(prefix), len(hexnode) + 1): 500 for length in range(len(prefix), len(hexnode) + 1):
495 prefix = hexnode[:length] 501 prefix = hexnode[:length]
496 if not mayberevnum(repo, prefix): 502 if not mayberevnum(repo, prefix):
497 return prefix 503 return prefix