I made a shell script that auto updates, builds all the pk3s and binaries, and moves them to the proper folder. All you really need to do to play the latest svn is "sh svnupdater" then go to the ~/.oa-svn/ folder and and set the binary permission to run as an executable.
Make sure main svn folder is named /home/yourusername/.oasvn/ and it will work smoothly.
After renaming/moving the main svn folder once, it takes only 2 steps to be playing it.
This shell needs to be in the main svn folder.
This will create a new directory in /home/yourusername/.oa-svn/ to keep the svn separate from the playable files.
http://www.relentlessbeating.com/catoptromancy/openarena/svnupdaterEDIT> Updated so that the auto generated folder is deleted, then remade with the latest built svn. Also made it copy over the text files.