add_credentials_file

# File railties/lib/rails/generators/rails/credentials/credentials_generator.rb, line 14
      def add_credentials_file
        in_root do
          return if File.exist?(content_path)

          say "Adding #{content_path} to store encrypted credentials."
          say ""

          content = render_template_to_encrypted_file

          say "The following content has been encrypted with the Rails master key:"
          say ""
          say content, :on_green
          say ""
          say "You can edit encrypted credentials with `bin/rails credentials:edit`."
          say ""
        end
      end