askgit provides a sql interface to your git repository.

You can initialize Git repository, check its current status, add and commit changes and push all of that to remote? Great. Now time for these commands!

Ever considered setting up and running your very own git server? It’s actually
quite easy! In this post, I’ll outline the steps I took to set up my
own so that you can give it a try yourself. But first, why
might you even want to go through the trouble of setting up your own server?

This article, explains different ways of preventing Git from repeatedly prompting for username and password when interacting with a remote repository over HTTP(S).

Git Essentials Crash Course - Introduction This is not Java but several newbie developers ask the same question, how to use GIT and how does GIT works so here it goes...

Great tutorial on the use of git.