RE: Re: FW: [DESIGN] Aliases?

Greg Hudson <[email protected]> Mon, 27 Feb 2006 12:50:17 -0500
Newsgroups gmane.comp.version-control.subversion.devel,gmane.mail.eyebrowse.user
Message-ID <1141062617.12692.5.camel__30697.5277643234$1141067830$gmane$org@egyptian-gods.mit.edu>
On Mon, 2006-02-27 at 08:42 -0500, Gale, David wrote:
> Tags are inherently different from branches, and ought to be treated
> as such.

Nah, a tag is just a branch which oughtn't change.  All the operations
which you might want to do on a tag, such as compare it to something
else, you might want to do for a branch as well.

You've pretty much hit on the main reason why I am opposed to revision
alias proposals: they treat tags differently from branches.  As a
result, our UI would have one way of doing things for tags and another
way for branches, which would be a regression from the current situation
and a regression from CVS.

(Other reasons: mutability of revision aliases requires adding a second,
redundant history mechanism.  Revision aliases inherently tag the whole
repository when it should be possible to apply a tag to only a part.
Revision aliases are different from the current method of tagging a
repository, and would introduce a transition issue for existing
repositories.)