pre-commit to avoid commit forbidden words in any branch

pre-commit-forbidden-words.sh

#!/bin/bash

# You can change for any forbbiden words and file extensions you want
FILES='(rb|haml|js)'
FORBIDDEN='(binding.pry|debugger)'
# Change for y or n if you prefer verbose or not
VERBOSE=y

# Colors
GREP_COLOR='4;5;37;41'
GREEN='\033[0;32m'
RED='\033[0;31m'
NC='\033[0m'

if [[ $VERBOSE = 'y' ]]; then
  echo -e "${GREEN}[Forbidden Words] -->${NC} Checking if there is any ${RED}$(echo "${FORBIDDEN[*]//|/, }")${NC} on commited files... "
fi

# search for the forbidden words on git added files *.{rb|js|haml}
if [[ $(git diff --cached --name-only | grep -E $FILES) ]]; then
  FOUND=$(git diff --cached --name-only | grep -E $FILES | xargs grep --color --with-filename -n -E $FORBIDDEN)

  if [[ ! -z $FOUND ]]; then
    echo "Failed - Forbidden word founded!"
    echo -e "${RED}${FOUND}${NC}" | tr -s ' '
    exit 1
  fi
fi

if [[ $VERBOSE = 'y' ]]; then
  echo -e "${green}[Forbidden Words] --> 👍 approved.${NC}"
fi

exit 0