Migrate from one git repo to another

It does happen from time to time that you need to migrate an existing git repo to a new remote repo. Doing some googling I found the following steps to work best for me.

First make sure you have a local copy of all the old repo branches and tags, so fetch it.

git fetch origin

Check to see which branches of the old repo you don’t have a local copy of:

git branch -a

If you find that some of the remote branches don’t have any local copies, check them out to create a local copy:

git checkout -b <branch> origin/<branch>

Now that all the branches have a local copy, add the new repo as a new remote origin:

git remote add new-origin git@your-repo-host.com:user/repo.git

Push all the local branches to new-origin:

git push --all new-origin

Next push all the tags:

git push --tags new-origin

Now you can get rid of the old repo origin and all its dependencies and rename the new origin to replace the old:

git remote rm origin
git remote rename new-origin origin

And your done! All your commits and tags have now been migrated to the new-repo ready to be used.