Git-achievements-stats is a project mainly written in ..., it's free.
stefanfoulis' git achievements
Git-Achievements records all of the achievements you acquire while using Git.
There are over 40 achievement, most with different levels to be achieved. After a git command is executed if a new achievement is unlocked git-achievements will display a message on the console for your enjoyment:
Git Achievement Unlocked!
Caretaker
Added a .gitignore file to a repository.
A log of all of your achievements is kept locally, but you can also publish it to GitHub pages so you can share your achievements (and there is a rss feed so people can track your achievements).
For example here is mine: http://icefox.github.com/git-achievements
To push your achievements to GitHub first fork the project on GitHub, clone your repository and set the following config to true:
git config --global achievement.upload "true"
When an achievement is unlocked the index.html file will be overwritten, committed and then a 'git push origin' will be executed.
Add git-achievements to your path and alias git to git-achievements
For example add the following to the end of your ~/.bash_profile
export PATH="$PATH:~/git/git-achievements" alias git="git-achievements"
You can get your first achievement by running
git achievements --help