git-branch-rm-merged

#!/bin/bash
#
# From: https://gist.github.com/michaeltwofish/5096740
# Kipras:
# - modified to run against develop instead of master
# - made a small fix to run within Git bash on Windows
# - uncommented local branch deleting (in original this was commented out,
#      deleting only remote branches for some reason)
#
# Remove branches that have been fully merged to master, except dev
# Based on http://devblog.springest.com/a-script-to-remove-old-git-branches

# Helpber function to colourise output
# black='\E[0;30m' red='\E[0;31m' green='\E[0;32m' yellow='\E[0;33m'
# blue='\E[0;34m' magenta='\E[0;35m' cyan='\E[0;36m' white='\E[0;37m'

message() {
  message=$1
  color=${2:-$white}           # Defaults to white, if not specified.
  echo -e "${color}${message}"
  #  Reset text attributes to normal without clearing screen.
  tput sgr0
  return
}

notice() {
  yellow='\E[0;33m'
  message "$1" $yellow
}

error() {
  red='\E[0;31m'
  message "$1" $red
}

git status > /dev/null 2>&1

if [ "$?" -ne "0" ]
then
  error "fatal: Not a git repository"
  exit $?
fi

clear

# This has to be run from develop
# TODO allow test against any branch
notice "Checking out develop ..."
git checkout develop

# Update our list of remotes
# TODO allow pruning of non-origin remotes
notice "Updating remote branch list ..."
git fetch
git remote prune origin

# Remove local fully merged branches
notice "Removing local fully merged branches ..."
git branch --merged develop | grep -v 'develop\|master$' | xargs git branch -d

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

read -p "Delete remote branches (y/n)? "
if [ "$REPLY" != "y" ]
then
  notice "Aborted"
else
  # Remove remote fully merged branches
  notice "Removing remote fully merged branches ..."
  git branch -r --merged develop | sed 's/ *origin\///' \
             | grep -v 'develop\|dev\|master$' | xargs --replace=% git push origin :%
  notice "Done!"
fi