Pre commit hook that helps you avoid accidentally committing debug code + prevent commits to certain branches

pre-commit

#!/bin/bash

confirm() {
  while true; do
    read -p "$1 y/n " -n 1 yn < /dev/tty
    case $yn in
      [Yy]* ) echo ;break;;
      [Nn]* ) echo ;exit 1;;
      * ) echo ;echo "Please answer y or n.";;
    esac
  done
}

prevent_branch_commit () {
    branch="$(git rev-parse --abbrev-ref HEAD)"

    if [ "$branch" = "$1" ]; then
        confirm "Are you sure you want to commit to $1?"
    fi
}

confirm_change () {
    VAR=$(git diff --cached | grep -wi "$1")
    if [ ! -z "$VAR" ]; then
        git --no-pager grep -C 3 -n --break --cached -i "$1" $(git diff --cached --name-only)
        echo
        echo -e "\e[1;41m'$1' found in staged files!\e[1;40m"
        confirm "Do you really want to commit?"
    fi
}


# Prevent making accidental commits to certain branches
prevent_branch_commit "master"

# Prevent accidentally commiting debug code
confirm_change "var_dump"
confirm_change "exit;"
confirm_change "exit\("
confirm_change "exit \("
confirm_change "debug_print_backtrace"
confirm_change "console.log"