script for migrating a git repo between services

migrate-git-repo.sh

# put this function in some file that will be loaded into your bash profile
# I personally use a dedicated sourced file for functions but it could also be placed
# in your .bashrc, .profile, or .bash_profile

# Usage:
# at a bash prompt, run
# migrate-repo <repo-url>
# the repo url could look like git@github.com:username/repo-name.git
function migrate-repo() {
	new_repo_url=$1
	NAME=new_repo_`date +%s`

	if [ -z $1 ]; then
		echo "You must provide a target url for the repo"
		exit
	fi

	# this loop grabs all the branches from the (old) remote
	# it uses sed to prune the list of branches, which may cause
	# issues for some users with nonstandard sed installs (such as mac)
	for remote in `git branch -r|sed 's,origin/\|->\|HEAD,,g'`;
	do
		git checkout -b $remote
	done

	git remote add $NAME $new_repo_url
	git push -u $NAME --all
	git push -u $NAME --tags
	git remote rm origin
	git push $NAME master
	git remote rename $NAME origin
}