Git prehook to protect staging and master branches

pre-hook.sh

#!/bin/sh
# To bypass this hook and force the push, use 'git push --no-verify'
 
protected_branches=('staging' 'master')
current_branch=$(git symbolic-ref HEAD | sed -e 's,.*/\(.*\),\1,')
 
for branch in "${protected_branches[@]}"
do
    if [ $branch = $current_branch ]; then
        echo "You're about to push $branch and you don't want that"
        exit 1
    fi
done
exit 0