Mercurial > hg
view mercurial/peer.py @ 24151:38824c53c2f1 stable
revset: mask specific names for named() predicate
Before this patch, revset predicate "tag()" and "named('tags')" differ
from each other, because the former doesn't include "tip" but the
latter does.
For equivalence, "named('tags')" shouldn't include the revision
corresponded to "tip". But just removing "tip" from the "tags"
namespace causes breaking backward compatibility, even though "tip"
itself is planned to be eliminated, as mentioned below.
http://selenic.com/pipermail/mercurial-devel/2015-February/066157.html
To mask specific names ("tip" in this case) for "named()" predicate,
this patch introduces "deprecated" into "namespaces", and makes
"named()" predicate examine whether each names are masked by the
namespace, to which they belong.
"named()" will really work correctly after 3.3.1 (see 873eb5db89c8 for
detail), and fixing this on STABLE before 3.3.1 can prevent initial
users of "named()" from expecting "named('tags')" to include "tip".
It is reason why this patch is posted for STABLE, even though problem
itself isn't so serious.
This may have to be flagged as "(BC)", if applied on DEFAULT.
author | FUJIWARA Katsunori <foozy@lares.dti.ne.jp> |
---|---|
date | Thu, 05 Feb 2015 14:45:49 +0900 |
parents | 4ed6b3a24661 |
children | cbbdd085c991 |
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# peer.py - repository base classes for mercurial # # Copyright 2005, 2006 Matt Mackall <mpm@selenic.com> # Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com> # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. from i18n import _ import error class peerrepository(object): def capable(self, name): '''tell whether repo supports named capability. return False if not supported. if boolean capability, return True. if string capability, return string.''' caps = self._capabilities() if name in caps: return True name_eq = name + '=' for cap in caps: if cap.startswith(name_eq): return cap[len(name_eq):] return False def requirecap(self, name, purpose): '''raise an exception if the given capability is not present''' if not self.capable(name): raise error.CapabilityError( _('cannot %s; remote repository does not ' 'support the %r capability') % (purpose, name)) def local(self): '''return peer as a localrepo, or None''' return None def peer(self): return self def canpush(self): return True def close(self): pass