Every once in a while, it is necessary to perform a few housekeeping tasks to keep your git repository clean and efficient :
delete unused local branches
git branch -a
git branch -D unused_local_branch
delete unused remote branches
git push origin :unused_remote_branch
delete unused remote-tracking branches
If you use a shared-repository approach (several people have commit access to the same remote git repository), it will happen that someone else deletes a branch on the remote repository. Git does not automatically delete your local remote-tracking branches. To do so, it is necessary to :
git remote prune origin
clean-up unreachable commit objects
git prune
efficiently pack the repository objects
git gc –aggressive
That’s it 