I saw a reference to opendiff in a post on Mac OS X Hints. opendiff uses FileMerge to provide a graphical diff. I have the Apple Developer Tools installed but I hadn’t seen this before.
Fortunately there’s a FileMerge TextMate bundle.
mkdir -p /Library/Application\ Support/TextMate/Bundles cd /Library/Application\ Support/TextMate/Bundles svn co http://macromates.com/svn/Bundles/trunk/Bundles/FileMerge.tmbundle
