Hook to block Main branch

pre-commit

#!/bin/bash

red='\x1b[41m'
nocolor='\x1b[0m'

protected_branch='main'
current_branch=$(git symbolic-ref HEAD | sed -e 's,.*/\(.*\),\1,')

if [ $protected_branch = $current_branch ]
then
    echo -e "${red}You are in the $current_branch,Blocked Branch${nocolor}"
    read -p "Do you really want to do this? [y/n]" -n 1 -r < /dev/tty
    echo
    if echo $REPLY | grep -E '^[Yy]$' > /dev/null
    then
        exit 0 # Do run
    fi
    exit 1 # dont run
else
    exit 0 # Do run
fi

Não esquecer de dar permissão de escrita

chmod +x .git/hooks/prepare-commit