Mercurial > hg > mercurial-source
diff mercurial/revset.py @ 21925:7142e04b438e
revset: avoid a ValueError when 'only()' is given an empty set
This previously died in _revdescendants() taking the min() of the first set to
only(), when it was empty. An empty second set already worked. Likewise,
descendants() already handled an empty set.
| author | Matt Harbison <matt_harbison@yahoo.com> |
|---|---|
| date | Fri, 18 Jul 2014 19:46:56 -0400 (2014-07-18) |
| parents | 1000348b3aea |
| children | f486001f9d6f |
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--- a/mercurial/revset.py +++ b/mercurial/revset.py @@ -399,6 +399,9 @@ args = getargs(x, 1, 2, _('only takes one or two arguments')) include = getset(repo, spanset(repo), args[0]).set() if len(args) == 1: + if len(include) == 0: + return baseset([]) + descendants = set(_revdescendants(repo, include, False)) exclude = [rev for rev in cl.headrevs() if not rev in descendants and not rev in include]