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comparison mercurial/cmdutil.py @ 12618:0ae35296fbf4

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revsets: introduce revsingle helper revsingle returns a context for the last revision of the supplied revspec
author Matt Mackall <mpm@selenic.com>
date Thu, 07 Oct 2010 18:24:29 -0500
parents 2063d36b406e
children 7178f6fedb9d
comparison
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12617:2063d36b406e 12618:0ae35296fbf4
108 if limit <= 0: 108 if limit <= 0:
109 raise util.Abort(_('limit must be positive')) 109 raise util.Abort(_('limit must be positive'))
110 else: 110 else:
111 limit = None 111 limit = None
112 return limit 112 return limit
113
114 def revsingle(repo, revspec, default=None):
115 if not revspec:
116 return repo[default]
117
118 l = revrange(repo, [revspec])
119 if len(l) < 1:
120 raise util.Abort("empty revision set")
121 return repo[l[-1]]
113 122
114 def revpair(repo, revs): 123 def revpair(repo, revs):
115 if not revs: 124 if not revs:
116 return repo.dirstate.parents()[0], None 125 return repo.dirstate.parents()[0], None
117 126