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Re: dav_svn__update_report and resource-walk

From: C. Michael Pilato <cmpilato_at_collab.net>
Date: 2007-12-20 14:03:10 CET

David Glasser wrote:
> On Dec 19, 2007 7:50 PM, Eric Gillespie <epg@pretzelnet.org> wrote:
>> In tightening up the operational logging, I've encountered
>> another mystery. dav_svn__update_report looks for
>> "resource-walk" from the client, but I'm not really sure what
>> that causes it to do. It doesn't really matter, though, as serf
>> *never* sends this and neon has code in fetch.c:make_reporter to
>> send it, but no make_reporter calls use it!


> I found this code a couple of months ago, was concerned about its
> interaction with something new (depth?), and eventually realized it
> was pretty dead. Wasn't sure what to do though.

The resource walk was used at the end of 'switch' operations as a way for
the client to rebuild the wc-props cache. It was later found to be lacking
in certain situations, so we instead taught our clients to invalidate all
the wc-props before doing the real switch work, and then repopulating them
lazily as info became available. The server-side logic exists for
compatability for older clients (who, by the way, won't know anything of the
new depth support).

(If this helps to explain things, perhaps you could take the above and slap
it in as a comment at just the right spot in the code?)

C. Michael Pilato <cmpilato@collab.net>
CollabNet   <>   www.collab.net   <>   Distributed Development On Demand

Received on Thu Dec 20 14:03:30 2007

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