Mercurial > public > mercurial-scm > hg-stable
diff mercurial/revset.py @ 16820:20f55613fb2a
revset: add pattern matching to 'tag' revset expression
If the string provided to the 'tag' predicate starts with 're:', the rest
of the string will be treated as a regular expression and matched against
all tags in the repository.
There is a slight backwards-compatibility problem for people who actually
have tags that start with 're:'. As a workaround, these tags can be matched
using a 'literal:' prefix.
If no tags match the pattern, an error is raised. This matches the behaviour
of the previous exact-match code.
| author | Simon King <simon@simonking.org.uk> |
|---|---|
| date | Wed, 30 May 2012 23:13:33 +0100 |
| parents | 5260a9e93113 |
| children | 0946502fd3d5 |
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--- a/mercurial/revset.py Wed May 30 23:13:33 2012 +0100 +++ b/mercurial/revset.py Wed May 30 23:13:33 2012 +0100 @@ -1167,12 +1167,18 @@ args = getargs(x, 0, 1, _("tag takes one or no arguments")) cl = repo.changelog if args: - tn = getstring(args[0], - # i18n: "tag" is a keyword - _('the argument to tag must be a string')) - if not repo.tags().get(tn, None): - raise util.Abort(_("tag '%s' does not exist") % tn) - s = set([cl.rev(n) for t, n in repo.tagslist() if t == tn]) + pattern = getstring(args[0], + # i18n: "tag" is a keyword + _('the argument to tag must be a string')) + kind, pattern, matcher = _stringmatcher(pattern) + if kind == 'literal': + if not repo.tags().get(pattern, None): + raise util.Abort(_("tag '%s' does not exist") % pattern) + s = set([cl.rev(n) for t, n in repo.tagslist() if t == pattern]) + else: + s = set([cl.rev(n) for t, n in repo.tagslist() if matcher(t)]) + if not s: + raise util.Abort(_("no tags exist that match '%s'") % pattern) else: s = set([cl.rev(n) for t, n in repo.tagslist() if t != 'tip']) return [r for r in subset if r in s]