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OFFLINE COPYING AND MOVING ERRORS in 1.5.x and trunk (Was: 'svn cp wc wc' requires repository access (1.5.x BREAKING issue))

From: Bert Huijben <bert_at_vmoo.com>
Date: Fri, 21 Mar 2008 11:33:31 +0100

        Hi,

Sorry for shouting.

But I don't think anyone has taken notice of this issue; but I really think
this problem should be fixed or at least documented ASAP.

It does not only break offline working, but also slows down all working copy
actions several times over the 1.4.x performance.

E.g. right-dragging a file in the explorer with TortoiseSVN and AnkhSVN was
only a local action until svn 1.4 but requires building a repository
connection now with all options of failing. Changing the time taken to
seconds if you are using webdav over an international link vs the
milliseconds it took before.

Please note again: It is currently documented in the 'svn help cp' as NOT
USING the repository at all for the compatibility reasons mentioned above

Thanks for taking the time for looking into this.

        Bert

> -----Original Message-----
> From: Bert Huijben [mailto:bert_at_vmoo.com]
> Sent: donderdag 20 maart 2008 11:51
> To: dev_at_subversion.tigris.org
> Subject: RE: 'svn cp wc wc' requires repository access (1.5.x BREAKING
> issue)
>
> Hi All,
>
> When I posted this issue on IRC this monday we concluded we had at
> least a
> documentation bug and possibly an incompatible api change in 1.5 which
> should be resolved before releasing 1.5.
>
> Could anyone with more knowledge about the workingcopy-copy
> implementation
> /please/ take a look at this.
>
> It is easy to reproduce the repository access using:
>
> # svn --username guest co
> http://sharpsvn.open.collab.net/svn/sharpsvn/trunk/scripts/ scripts
> # cd scripts
> # svn --username nobody cp scripts/MergeTracking-Demo scripts/new
> A scripts/new
> Authentication realm: <http://sharpsvn.open.collab.net:80> CollabNet
> Subversion Repository
> Password for 'nobody':
> (press enter a few times)
> <snip>
> svn: OPTIONS of
> 'http://sharpsvn.open.collab.net/svn/sharpsvn/trunk/scripts/MergeTracki
> ng-De
> mo': authorization failed (http://sharpsvn.open.collab.net)
>
> (svn returns with errorcode 1)
>
> The directory is copied, but an error is returned.
>
> And it is explicitly documented as:
> # svn help cp
> <snip>
> WARNING: For compatibility with previous versions of Subversion,
> copies performed using two working copy paths (WC -> WC) will not
> contact the repository. As such, they may not, by default, be able
> to propagate merge tracking information from the source of the copy
> to the destination.
> <snip>
>
>
> This breaks existing c implementations of the client api as they do not
> expect wc -> wc copy operations to require authorization (was always
> non-interactive) and don't ignore new errors.
>
>
> I tried to get some usefull information in the svn:mergeinfo property
> using
> the wc->wc copy in different scenarios (allowing repository access) but
> I
> always get an empty svn:mergeinfo property. (Don't know why it would
> contact
> the repository to get nothing; but perhaps that is an 1.4-1.5 interop
> issue)
>
> Overall it makes copying/moving wc files quite a lot slower in 1.5 over
> 1.4
> on webdav repositories.
>
>
> Bert
>
>
> > -----Original Message-----
> > From: Bert Huijben [mailto:B.Huijben_at_competence.biz]
> > Sent: maandag 17 maart 2008 15:33
> > To: dev_at_subversion.tigris.org
> > Subject: 'svn cp wc wc' requires repository access (1.5.x issue)
> >
> > Hi All,
> >
> > Using a private repository, when running in a working copy:
> >
> > # svn cp --username nouser <existing-file> <new-file>
> >
> > I get a password prompt to get valid user credentials to contact the
> > server to retrieve something; possibly merge information. *)
> >
> > (When the repository allows anonymous reading (as subversions own
> > repository) the prompt will not show)
> >
> >
> > In september 2007, when we still had 'svn cp -g ...' I would have
> > expected this behaviour.
> > (cacknin refered to: http://svn.haxx.se/dev/archive-2007-
> > 09/0494.shtml),
> > but if I remember correctly this behaviour was removed when the
> > implicit
> > mergeinfo was added.
> >
> > The svn clients help text even contains:
> >
> > # svn help cp
> > <snip>
> >
> > WARNING: For compatibility with previous versions of Subversion,
> > copies performed using two working copy paths (WC -> WC) will not
> > contact the repository. As such, they may not, by default, be able
> > to propagate merge tracking information from the source of the copy
> > to the destination.
> >
> > <snip>
> >
> > What behaviour should I expect in a 1.5 client?
> >
> > We should either fix the behaviour or update the helptext.
> >
> >
> > After some research on irc cacknin added:
> > ===
> > <cacknin> Bert: just reproduced; it seems that although I'm thrown
> an
> > error, the copy *does* happen, and without the
> > +mergeinfo stuff
> > <cacknin> I think this is a bug since 'svn help cp' says exactly the
> > opposite: "WARNING: For compatibility with
> > +previous versions of Subversion,copies performed using two working
> > copy
> > paths (WC -> WC) will not contact the
> > +repository."
> > ==
> >
> > Bert
> >
> > *) I originally found the issue using my non primary user for a wc
> > operation instead of an explicit user, so it has nothing to do with
> > adding the explicit --username triggering something
> >
> >
> >
> >
> >
> > ---------------------------------------------------------------------
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> > For additional commands, e-mail: dev-help_at_subversion.tigris.org
>
>
>
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Received on 2008-03-21 11:33:45 CET

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