Question

Lets say a project has been developed in one repo, and the project website was developed in another.

Is there a way to import the website repo, with full history, into an empty branch of the project repo?

Answer 1

git remote add rweb git://whereever
git fetch rweb

And voilà, you have it in one repository. Perhaps you then also want to create a branch out of it, to make it accessible and pushable:

git branch website rweb/master
git push origin website

Starting with an empty branches and dumping the website tree instead would have the drawback of losing all the history.