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AW: SVN is ignoring needs-lock property

From: Markus Schaber <m.schaber_at_codesys.com>
Date: Tue, 29 Jul 2014 14:50:07 +0000

Hi,

Von: Niemann, Hartmut [mailto:hartmut.niemann_at_siemens.com]
> > -----Ursprüngliche Nachricht-----
> > Von: Mun Johl [mailto:Mun.Johl_at_Emulex.Com]
> [...]
> > As a test, I made a small change to the file and attempted a check-in
> > (w/o first locking the file). To my surprise, the file update was
> > applied!
> >
> > Is this a known bug with the version of SVN I'm using?
> >
> > Are my expectations incorrect? That is, am I doing something
> > incorrectly if I want a user to have to lock the file prior to check-
> > in?
>
> I did some experiments recently. It looked like you don't need the lock for a
> commit, but if some other working copy has a lock, you won't be allowed to
> commit. (I am not totally sure, though)

The rule is: If the server (=repository) knows about a lock for that file, one can only commit with the matching lock token.

Working copies store the lock token when one locks a file there. However, this information can get out of sync, for example by:

- "stealing" a lock using "--force", the old working copy still has the stale lock token.

- Removing a lock on the server using svnadmin.

- Duplicating the working copy (e. G. using "copy" on the shell or zipping it together and unpacking on a different machine) - then the first one to commit or unlock has a valid token, while the other one does not have a valid token.

- Restoring an old working copy from a backup - the working copy may still have stale lock tokens for locks which were removed in the meantime.

(This list is non-exhaustive.)

Best regards

Markus Schaber

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Received on 2014-07-29 16:50:49 CEST

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