Re: [PATCH] issue #3620: svn add ^/ triggers assertion failure

Uwe Stuehler wrote:
> [[[
> Fix issue #3620: svn add ^/ triggers assertion failure
>
> * subversion/svn/add-cmd.c:
> (svn_cl__add): Raise an error if a target argument isn't a working
> copy path before calling svn_client_add4(), which would trigger an
> assertion.
>
> Found by: stsp
> Patch by: Uwe Stuehler (subversion-lists_at_bsdx.de)
> ]]]

Uwe,

Thanks again for your patch. I took some time to look at it just now. The
patch, as patches go, is fine. But the approach isn't the best one. Here
are the notes I just recorded in issue #3620:

----------------------------------------------------------------------------
'svn st ^/' suffers from the same thing.

Subversion 1.6 handles these cases gracefully. Note the use of the
svn_cl__try() wrapper arounds the client's calls to svn_client_status5() and
svn_client_add4() -- it clearly is expecting those APIs to return a
particular error code when asked to operate on paths that aren't working
copies. The fix for this issue needs to preserve those behaviors (which
means it must live behind the libsvn_client API).

I'm not confident, but I suspect that the root cause is the use of
svn_dirent_get_absolute() all over the place for WC-NG-ness. That function
asserts (ultimately) that its input isn't a URL. We need to either make it
return a graceful error in those conditions, or do this kind of checking in
its callers.
----------------------------------------------------------------------------

We need to figure out the right approach before moving on.

-- 
C. Michael Pilato <cmpilato_at_collab.net>
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