Git pre-push guardian to prevent push to protected branches.

pre-push

#!/bin/bash

# General colors
black='\x1B[0;30m'
red='\x1B[0;31m'
green='\x1B[0;32m' # '\e[1;32m' is too bright for white bg.
blue='\x1B[1;34m'
yellow='\x1B[0;33m'
purple='\x1B[1;35m'
cyan='\x1B[0;36m'
endColor='\x1B[0m'


protected_branches=( master stage develop )
current_branch=$(git symbolic-ref HEAD | sed -e 's,.*/\(.*\),\1,')

for i in "${protected_branches[@]}"
do
  if [ ${i} == ${current_branch} ]; then
    echo -en "${yellow}[Git pre-push]${endColor} You're about to push to ${red}${i}${endColor}, is that what you intended?"
    read -p " [y/N] " -r < /dev/tty
    if echo ${REPLY} | egrep -E '^[yY]$' > /dev/null
    then
      echo -e "Continue of pushing to ${red}${i}${endColor}"
      exit 0 # push will execute
    fi
    echo -en "Abort pushing to ${red}${i}${endColor}\n"
    exit 1 # push will not execute
  fi
done
exit 0 # push will execute when won't match protected_branches

Usage for git < 1.8.2:

cd  ~/my_repo_dir/.git/hooks 
wget https://gist.githubusercontent.com/egel/2058f19cf78df84ade741b7a77a38006/raw/bc22e8f1d877f4308c2ccdd336a82f8214d0f9f8/pre-push -O pre-push && chmod a+x pre-push