Delete remote branches that have been merged to master.

git-remote-merged.sh

#!/usr/bin/env bash
# vim: ai ts=2 sw=2 et sts=2 ft=sh

# Delete remote branches that have been merged to master.
#
# Usage:
#
#     git-remote-merged.sh -f
#

# Bash strict mode.
set -o pipefail
set -o errexit
set -o nounset

#IFS=$' '

_force=false;

while getopts ":fn" opt; do
  case ${opt} in
    n ) _force=false;
      ;;
    f ) _force=true;
      ;;
    \? ) echo "Usage: $(basename "${BASH_SOURCE[0]}") [-n] [-f]"
      ;;
  esac
done

_git_opts='-n --delete'
if [[ "$_force" == true ]]; then
  _git_opts='--delete'
fi

for branch in $(git branch -r --merged master | grep "origin" | grep -v "develop" | grep -v "master" | grep -v "release");
do
  if [[ "$_force" == false ]]; then echo "Would remove ${branch}"; fi
  git push origin $_git_opts "${branch##*/}";
done