Is there a merge/comparison tool like VisualStudio but for the Mac? : <p>I would like to find a tool like VisualStudio but for the Mac. Specifically what I need is to be able to go "back in time" in Git repos to perform side by side file comparisons of code. I know with VS you can do this, is there anything out there for the Mac that will do the same thing? I'm writing in Ruby on Rails if that makes a difference.</p>
