My version of protecting against a force push

pre-push

#!/usr/bin/env bash
# Prevents force-pushing to certain branches w.o confirmation
# install to <repo>/.git/hooks/
# chmod +x

protected_branches="^(master|production)"
current_branch=`git rev-parse --abbrev-ref HEAD`
push_command=`ps -ocommand= -p $PPID`
force_push="force|delete|-f"

# to make it purty
red=$'\033[0;31m'
nc=$'\033[0m'
bul=$'\33[1;4m'
nobul=$'\33[24;2m'

if [[ "$current_branch" =~ $protected_branches && "$push_command" =~ $force_push ]]
then
    read -p "You're about to ${red}${bul}force push${nobul} ${red}$current_branch${nc}, is that what you intended? [y|n] " -n 1 -r < /dev/tty
    echo
    if echo $REPLY | grep -E '^[Yy]$' > /dev/null
    then
        exit 0 # push will execute
    fi
    exit 1 # push will not execute
else
    exit 0 # push will execute
fi