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Re: FW: [DESIGN] Aliases?

From: Vincent Starre <vstarre_at_comcast.net>
Date: 2006-02-28 23:50:34 CET

Matthias Wächter wrote:

> Julian Foad schrieb:
>> Matthias Wächter wrote:
>>> If I understand the issue correctly, what Subversion is missing is a
>>> way to specify a tag, and instead of checking out the tag
>>> (directory) getting the source-of-tag directory.
>>> For example, consider a checked-out directory:
>>> /repos/trunk/ (@5)
>>> /file1 (@5)
>>> /file2 (@7)
>>> When you create a tag, you simply make "svn cp .
>>> http://server/repos/tags/mytag" committing, f.e., rev. 10
>>> When you check out "http://server/repos/tags/mytag" again, despite
>>> the nomenclature and possibly typing more than in the case of
>>> proposed aliases, you end up with
>>> /
>>> repos/tags/mytag/ (@10)
>>> /file1 (@10)
>>> /file2 (@10)
>>> but what you actually need is to check out what you had before,
>>> /repos/trunk @5 and the files @5 and @7, even if the tag was @10.
>> Maybe you are right, but could you please continue this example and
>> show WHY you actually need the WC to be based on /trunk@5 etc. What
>> sort of operations does this enable or make easier, compared to the
>> WC being based on /tags/mytag@10 ?
> Well, I don't know. :-) I only try to find a solution for the
> 'aliases' problem other people request, using generic SVN techniques.
> At first, it makes the behavior identical to CVS: If you tag something
> and checkout the tag again, you get _precisely_ the same thing that
> you had when you tagged. "svn status -v" and "svn info" will give the
> same output as before the tag. It would even anticipate that the
> repository revision counts over time: Using "conventional" SVN tags
> one ends checking out the tag directory @10 or @15 or @1500 if the
> repository was updated a couple of times. In the proposed tag
> walk-back way you would always end up at /repos/trunk @5-7. That's
> what I'd call a real tag (if I needed such :-)).
> And all that with the added value of versioned tags which you don't
> have in CVS.
> - Matthias

*cough*.. this is probably getting old by now, but "walkbacks" sounds
like a feature which would be solved well by the implementation of
views, which have also been referred to as "repository-side symlinks"
and "svn:externals for files". Probably only by people talking to me.
Always trying to solve everything at once...

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Received on Tue Feb 28 23:52:00 2006

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