instance method config_when_updating

# File railties/lib/rails/generators/rails/app/app_generator.rb, line 132
    def config_when_updating
      cookie_serializer_config_exist = File.exist?("config/initializers/cookies_serializer.rb")
      action_cable_config_exist      = File.exist?("config/cable.yml")
      active_storage_config_exist    = File.exist?("config/storage.yml")
      rack_cors_config_exist         = File.exist?("config/initializers/cors.rb")
      assets_config_exist            = File.exist?("config/initializers/assets.rb")
      csp_config_exist               = File.exist?("config/initializers/content_security_policy.rb")
      permissions_policy_config_exist = File.exist?("config/initializers/permissions_policy.rb")

      @config_target_version = Rails.application.config.loaded_config_version || "5.0"

      config
      configru

      unless cookie_serializer_config_exist
        gsub_file "config/initializers/cookies_serializer.rb", /json(?!,)/, "marshal"
      end

      if !options[:skip_action_cable] && !action_cable_config_exist
        template "config/cable.yml"
      end

      if !skip_active_storage? && !active_storage_config_exist
        template "config/storage.yml"
      end

      if options[:skip_sprockets] && !assets_config_exist
        remove_file "config/initializers/assets.rb"
      end

      unless rack_cors_config_exist
        remove_file "config/initializers/cors.rb"
      end

      if options[:api]
        unless cookie_serializer_config_exist
          remove_file "config/initializers/cookies_serializer.rb"
        end

        unless csp_config_exist
          remove_file "config/initializers/content_security_policy.rb"
        end

        unless permissions_policy_config_exist
          remove_file "config/initializers/permissions_policy.rb"
        end
      end
    end