pre-commit eslint

#!/bin/sh

files=$(git diff --cached --name-only --diff-filter=ACM)
javascripts=$(echo "$files" | grep -e ".js$")

warn=false
pass=true

if [ "$javascripts" != "" ]; then
  for javascript in ${javascripts}; do
    result=$(./node_modules/.bin/eslint ${javascript} -f compact)
    if [ "$(echo $result | grep Error)" = "" ]; then
      if [ "$(echo $result | grep Warning)" = "" ]; then
        echo "\t\033[32m✓ [eslint] ${javascript}\033[0m"
      else
        warn=true
        echo "\t\033[33m⚠︎︎ [eslint] ${javascript}\033[0m"
      fi
    else
      echo "\t\033[31m✗ [eslint] ${javascript}\033[0m"
      pass=false
    fi
  done
fi

if ! $pass; then
  echo "\n\033[31m✗ \033[0m\n"
  exit 1
elif $warn; then
  echo "\n\033[33m⚠︎ \033[0m\n"
  exit 0
else
  echo "\n\033[32m✓ \033[0m\n"
  exit 0
fi