git diff does not open opendiff on Mac

Question

I'm using git to work on a text document concurrently, and I'm trying to find a nice visual way to see the changes that were done by others. I can do this by typing git diff but the result is on the Terminal. I was reading this post where it seems it's possible to configure git to use opendiff as the default viewer for diff. Yet, when I type the commands

$ git config --global merge.tool opendiff
$ git config --global diff.tool opendiff
$ git config --global difftool.prompt false

and I do git diff I still get the output on the Terminal. What am I doing wrong?

Answer 1

You need to use the commands git difftool (instead of git diff) and git mergetool (instead of git merge) for git to use opendiff.