Generating dumpfile without filesystem backing

[Ramkumar Ramachandra <ar...@gmail.com>]

Hi,

I figured that the dump editor in libsvn_repos/dump.c unnecessarily
uses a filesystem backing when it's actually not necessary; over the
last week, I've been writing an editor to produce a dumpfile
on-the-fly using the replay API. I plan to plug this into svnsync in
future, but I'm developing it as an independent application for now.
Since I plan to get the independent application merged into git.git as
part of a larger project, I've had to destroy the structure and
whitespace making it completely impossible to generate a diff of my
work- this shouldn't actually be a problem because my dump editor
already diverges from the one in dump.c significantly. When I have
verified that it works, I plan to generate a nice patch series to get
it merged into Subversion (and remove it from git.git in favor of just
linking/ calling). I've also been discussing the design actively on
the #svn-dev IRC channel, and Daniel suggested that I bring the list
into the loop immediately- my current implementation is a heavy WIP,
and currently just dumps actions, and property lengths corresponding
to dir_prop_changed. I'd appreciate any comments/ suggestions.

http://github.com/artagnon/svn-dump-fast-export/tree/ra-svn

Thanks.

-- Ram

p.s- Kindly CC me in all relevant emails as I'm not subscribed to this list.