remove old branches that have been merged

gistfile1.sh

# adapted from http://devblog.springest.com/a-script-to-remove-old-git-branches

# This has to be run from master
git checkout master

# Update our list of remotes
git fetch
git remote prune origin

# Remove local fully merged branches
git branch --merged master | grep -v 'master$' | xargs git branch -d

# Show remote fully merged branches
echo "The following remote branches are fully merged and will be removed:"
git branch -r --merged master | sed 's/ *origin\///' | grep -v 'master$'

read -p "Continue (y/n)? "
if [ "$REPLY" == "y" ]
then
   # Remove remote fully merged branches
   git branch -r --merged master | sed 's/ *origin\///' \
             | grep -v 'master$' | xargs -I% git push origin :%
   echo "Done!"
   say "Obsolete branches are removed"
fi

# OR if we wanna confirm it per branch:
# List dist branch merged | exclude master, HEAD and develop | remove origin/ | delete remote branch asking confirmation
# Assume you don't wanna remove 'develop' branch (for people using gitflow)
git branch -r --merged | grep -vw "master" | grep -vw "HEAD" | grep -vw "develop" | cut -d "/" -f2 | xargs -p -I {} git push origin :{}