Mirroring a git repository to Bitbucket

mirror-git-repo.sh

git clone --bare https://github.com/project/repo.git
cd repo

git push --mirror ssh://git@bitbucket/lib/new-repo.git
# if this results in the following error:
# You are attempting to update refs that are reserved for Bitbucket's pull request functionality. Bitbucket manages these refs automatically, and they may not be updated by users.
# remote: Rejected refs:
# remote: 	refs/pull-requests/1/from
# 
# then use the following commands
git push ssh://git@bitbucket/lib/new-repo.git
git push --tags ssh://git@bitbucket/lib/new-repo.git