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Repository back up, but working copy re-checkout needed

From: Karl Fogel <kfogel_at_newton.ch.collab.net>
Date: 2002-06-17 23:15:15 CEST

Okay folks, the repository is back up again, but with a catch:

You'll need to check out working copies from svn.collab.net again, due
to the versioned-resource url format change. Here is the command
line, so you won't even have to think:

   svn co http://svn.collab.net/repos/svn/trunk -d YOUR_WC_NAME

You're probably saying to yourself "But wait, I thought they
anticipated this a while back and put compatibility code in the client
so it would automatically expire old-style cached urls?"

Yes, we did, see revision 1863 for the bulk of that change. But it
looks like we forgot the case where the client sends an opaque vsn
rsrc url to provide the *base* for an update -- the base against which
the server should send svndiff data, that is. So now, when you try to
update an old working copy, this GET request...

   GET /repos/svn/!svn/ver/2248/trunk/subversion/include/svn_wc.h HTTP/1.1
   User-Agent: neon/0.21.1 SVN/0.13.0 (dev build)
   Connection: TE, Keep-Alive
   TE: trailers
   X-SVN-VR-Base: /repos/svn/$svn/ver/\
   Host: svn.collab.net

...results in this server response:

   HTTP/1.1 400 Bad Request
   Date: Mon, 17 Jun 2002 20:43:46 GMT
   Server: Apache/2.0.39-dev (Unix) DAV/2 SVN/0.13.0 (dev build)
   Vary: accept-language
   Accept-Ranges: bytes
   Content-Length: 741
   Connection: close
   Content-Type: text/html; charset=ISO-8859-1
   X-Pad: avoid browser bug

... but unfortunately, the client doesn't have any special code to
notice that response and simply invalidate the cached vsn-rsrc-url.
It only has such code for the commit case.

Ooops :-). Sorry, folks.

We could, I suppose, commit a fix for this. But you still wouldn't be
able to update to get the fix :-), so we'd have to mail it out as a
patch, which people would apply and then rebuild... Not a very smooth
upgrade path at all.

So given that the smooth upgrade path is already not an option, the
easiest thing is probably just for everyone to check out again. Note
that it's okay to check out using a client that is not bleeding edge:
the initial vsn rsrc urls come from the server, not the client.

-Karl (& Mike & Ben)

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Received on Mon Jun 17 23:22:00 2002

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