Ok so in my last post I mentioned I wasn’t able to find a way to automatically use an existing .rvmrc file. I spent some time with it again this afternoon and was able to get it to work. So now if you are using TextMate and you want to run a ruby script that uses your rvm environment all you have to do is edit the commands you use and replace the #! and add a couple lines. The odd thing is this is pretty much exactly what I was trying before, though on a different machine.
#!/usr/bin/env bash
[[ -f "$HOME/.rvm/scripts/rvm" ]] && . $HOME/.rvm/scripts/rvm
[[ -f "$TM_PROJECT_DIRECTORY/.rvmrc" ]] && . $TM_PROJECT_DIRECTORY/.rvmrc
And that’s it, you get your rvm config in TextMate.