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AW: 1.1.x client with 1.2.x server

From: <ulrich.griesser_at_sdm.de>
Date: 2005-07-21 13:46:44 CEST

Thanks James. That will help.


Von: James FitzGibbon [mailto:jfitzgibbon@primustel.ca]
Gesendet: Donnerstag, 21. Juli 2005 12:16
An: Grie▀er, Ulrich
Cc: users@subversion.tigris.org
Betreff: Re: 1.1.x client with 1.2.x server

On Jul-21-05, at 4:29 AM, <ulrich.griesser@sdm.de> <ulrich.griesser@sdm.de>

My users are now running different clients version, spreading from 1.1.3 to
How can I now ensure, that files with a set svn:needs-lock property are not
able to be modified or checked-in with a smaller client version than 1.2
(because I want to avoid conflicts)?

Are there any checks I can activate? Or is this a bug or feature?

You can't verify the client version in a server-side hook. There was a
thread a few months back about being able to verify client capabilities, but
I don't recall if changes to effect it made it onto the roadmap. I
certainly don't think any released svn code can do that yet.

What you can do is verify that anything that has 'svn:needs-lock' set is
locked in a pre-commit check.

Since 1.[01].x clients cannot establish locks, this will effectively prevent
them from committing to any such files, but this could also be a source of
frustration, because they don't see 'svn:needs-lock' as anything special and
will be able to checkout and modify, then get unceremoniously kicked out on
commit. Of course, a client upgrade will allow them to continue with the
checkin, so long as nobody using a 1.2.x client has snagged the lock since
their initial checkout.

The pre-commit-check.py script in the contrib/hook-scripts directory would
be fairly easy to modify to do this, as it gives you a map of properties to
values. You just want to check for the existence and validity of the
'locked' property if 'svn:needs-lock' has a value.
contrib/hook-scripts/pre-lock-require-needs-lock.py might also be
instructional as it contains specific examples of looking at the
'svn:needs-lock' property of a node in a hook.

Hope that helps.

James FitzGibbon
Systems Developer, Primus Telecommunications Canada
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Received on Thu Jul 21 13:48:32 2005

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