I just found a python script that will take the output from
svn diff and run it through FileMerge.app so there’s a nice pretty visual diff to look at.
It’s called svndiffshim.py and can be found here.
To use it, copy the script somewhere (like ~/bin) and make sure it’s executable (
chmod +x ~/bin/svndiffshim.py)
Then add something like the following to your ~/.subversion/config file…
diff-cmd = /path/to/svndiffshim.py