Check if a project is a rails project.

check_rails_project.rb

    def check_if_rails_project
      abort = 0
      unless File.exists?("Gemfile")
        say "Missing Gemfile! Is this a rails project? If yes, something went really wrong, create your Gemfile and retry", :red
        abort = 1
      end
      unless File.exists?(Rails.root.join("config/routes.rb"))
        say "Missing routes.rb! Is this a rails project? If yes, something went really wrong, create your routes.rb and retry", :red
        abort = 1
      end
      abort("Exit...") if abort == 1
    end