by Josh Dick
https://github.com/joshdick/git-cr
git-cr shows all commits in a Git branch that haven't been merged upstream, as well as the files affected by those commits, then optionally performs an interactive diff.
If git-cr is placed on your PATH, you can invoke it via git itself:
$ git cr
I wrote git-cr to help facilitate code reviews. It shows information you need to do a code review (a list of relevant changed files) before merging commits upstream.
Run git-cr -h for help/usage information.
git-cr is released under a Simplified BSD license.