Setup 'git gud' as 'post commit' hook

Repository setup

1. In the .git folder inside your local repository, there's a folder named hooks. We'll work in a new file named post-commit (no extension). If there's a post-commit.sample file, rename it.

2. If you already installed git-gud, just write the next in your file:

   #!/bin/sh
   
   git gud
   

   If you prefer, you can place the git-gud script contents in your new post-commit file.

3. The file must be executable, so maybe you'll need to use chmod +x /path/to/git-gud.

4. Now, each time your complete a git commit in this repository, the post-commit script will be executed and git-gud will do its magic.

Global setup

1. Setup a hooks folder (core.hooksPath) to store your scripts:

   # git 2.9+ (June 2016)
   $ git config --global core.hooksPath /path/to/global/hook

2. Follow the same instructions as above to create the post-commit file (steps 2, 3 and 4).

   If you need more information in this global setup, this SO question can be useful.