move a git repo from one origin to another

git_move() {  # where $1 is your origin name and $2 is the new origin url
  git fetch --all
  git pull --all
  for b in `git branch -r | grep -v -- '->'`; do git branch --track ${b##origin/} $b; done
  git remote remove $1
  git remote add $1 $2
  for b in `git branch | grep -v -- '*'`; do git push -u origin $b; done
  git push --tags
}