The other day, I implemented activities and working resources (and, therefore, checkout) in mod_dav_svn. As a prereq, I revamped mod_dav's CHECKOUT handling. It was stuck back in the old draft days. A number of mod_dav's method handlers for DeltaV are rather old and need to be updated w.r.t the latest draft.
Main point: we now have some server response for some of the SVN actions. Still no backend repository to test against, which severely limits how far I can go.
Next up, I think that I'm going to work on the auxilliary info bits: OPTIONS responses and some live properties. At various points, the client will be requesting this data, and I'll need to get it generated. Much of it, I should be able to do without the FS. For example: baseline resources, activity collection sets, and the checked-in property.
It might be possible to quick simulate a repository that I can fetch. Not sure on that one. The other guys are working on the repository, so it is possible that it will arrive before I get completely blocked. There is simply a lot of little details that I can occupy myself with meantime. [heck, there is some error handling and reporting within mod_dav that needs some work (to deal with the new 403/409 response bodies)]
In Apache land, we finally reached some semblance of agreement (or apathy?) and got some brigade buffering stuff checked in. There is one bit left where I need to post an alternate patch, but it is pretty much there. Unrelated, I went through and cleaned up some really old crud; I was looking further (specifically, at CORE_PRIVATE) usage. Feh. That stuff is hardly private. I'm tempted to just toss it all, rather than continue to pretend that it is private in any way.