hook for pre-commit and not commit if found some strings

pre-commit

#!/usr/bin/env ruby

exit 0 if ARGV.include?('--no-verify')

keywords = %w(\.pry console.log)

files_changed = %x(git diff-index --name-only HEAD --).split
%x(git grep -q -E "#{keywords.join('|')}" #{files_changed.join(' ')})

if $?.exitstatus.zero?
  puts "# Check following lines:"
  files_changed.each do |file|
    keywords.each do |keyword|
      %x(git grep -q #{keyword} #{file})
      if $?.exitstatus.zero?
        line = %x(git grep -n #{keyword} #{file} | awk -F ":" '{print $2}').split.join(', ')
        puts "#\t\033[31m#{file}\033[0m contains #{keyword} at line \033[33m#{line}\033[0m."
      end
    end
  end
  exit 1
end