Hook for pre-commit to check rubocop and erb problems

pre-commit.bash

#!/usr/bin/env bash

echo "Running pre-commit hook"

fileList_rb=$(git diff --diff-filter=d --cached --name-only | grep -E '\.(rb)$')
fileList_erb=$(git diff --diff-filter=d --cached --name-only | grep -E '\.(erb)$')

if [ ${#fileList_rb} -lt 1 ] && [ ${#fileList_erb} -lt 1 ]; then
  echo -e "You have no staged .rb or .erb files to test\n"
  exit
fi

if [ ${#fileList_rb} -lt 1 ]; then
  docker-compose run --rm app bundle exec rubocop ${fileList_rb[*]} "$@"

  if [ $? -ne 0 ]; then
    echo -e "\nPlease fix the above rubocop issues before committing.\n"
    exit 1
  fi
fi

if [ ${#fileList_erb} -lt 1 ]; then
  docker-compose run --rm app bundle exec erblint ${fileList_erb[*]} "$@"

  if [ $? -ne 0 ]; then
    echo -e "\nPlease fix the above erblint issues before committing.\n"
    exit 1
  fi
fi