Git tricks: Split a branch off into a new repository

Let’s split an existing branch off into its own repository.

Recently I started a new project and without giving it much thought, I put both the server and the client app in the same repo. Once I actually started developing the server I started to question the choice to mix the repo like this. To fix this I split the server branch off into its own repo. This is easily accomplished. First I created the new repo on github. Then it was a matter of pushing the server branch to the new repo with the following command:

git push +original-branch:master

This pushes the whole commit history from the original branch onto the master branch of the new repo. A little tidying up and I had successfully fixed the projects.