cleanup.sh

#!/bin/bash
# Script for git cleanup - delete merged branches
# Switches to master branches
#
# Usage: cleanup.sh [--with-remote]

case $1 in
    -r|--with-remote) remote_cleanup=1;;
esac

# 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
local_merged=$(git branch --merged master | grep -v 'master$')
if [[ -z ${local_merged} ]]; then
    echo "No local branches to delete"
else
    echo ${local_merged} | xargs git branch -d
fi

has_upstream=`git branch -a | grep upstream | wc  -l`

if [[ ${remote_cleanup} -eq 1 && "$has_upstream" -gt "0" ]]
then
    remote_merged=$(git branch -r --merged master | sed 's/ *origin\///' | grep -v 'master$')
    if [[ -z ${remote_merged} ]]; then
        echo "No remote branches to delete"
    else
        # Remove remote fully merged branches
        echo ${remote_merged} | xargs -I% git push origin :%
    fi
fi