#!/usr/bin/env bash

# This hook is called with the following parameters:
#
# $1 -- Name of the remote to which the push is being done
# $2 -- URL to which the push is being done
#
# If pushing without using a named remote those arguments will be equal.
#
# Information about the commits which are being pushed is supplied as lines to
# the standard input in the form:
#
#   <local ref> <local sha1> <remote ref> <remote sha1>
#

protected_branches=('master')

IFS=' '
while read local_ref local_sha remote_ref remote_sha
do
    for protected_branch in "${protected_branches[@]}"; do
        if [[ $remote_ref == "refs/heads/$protected_branch" ]]; then
            echo -en "\033[31mYou're about to push master, that is verboten!\033[0m"
            echo
            exit 1 # push will not execute
        fi
    done
done

# nothing wrong, let push execute
exit 0