Method normalizeOptions

lib/Server.js:840–1468

* @private * @returns {Promise }

()

   * @returns {Promise<void>}
   */
  async normalizeOptions() {
    const { options } = this;
    const compilerOptions = this.getCompilerOptions();
    const compilerWatchOptions = compilerOptions.watchOptions;
    /**
     * @param {WatchOptions & { aggregateTimeout?: number, ignored?: WatchOptions["ignored"], poll?: number | boolean }} watchOptions watch options
     * @returns {WatchOptions} normalized watch options
     */
    const getWatchOptions = (watchOptions = {}) => {
      const getPolling = () => {
        if (typeof watchOptions.usePolling !== "undefined") {
          return watchOptions.usePolling;
        }

        if (typeof watchOptions.poll !== "undefined") {
          return Boolean(watchOptions.poll);
        }

        if (typeof compilerWatchOptions.poll !== "undefined") {
          return Boolean(compilerWatchOptions.poll);
        }

        return false;
      };
      const getInterval = () => {
        if (typeof watchOptions.interval !== "undefined") {
          return watchOptions.interval;
        }

        if (typeof watchOptions.poll === "number") {
          return watchOptions.poll;
        }

        if (typeof compilerWatchOptions.poll === "number") {
          return compilerWatchOptions.poll;
        }
      };

      const usePolling = getPolling();
      const interval = getInterval();
      const { poll: _poll, interval: _interval, ...rest } = watchOptions;

      return {
        ignoreInitial: true,
        persistent: true,
        followSymlinks: false,
        atomic: false,
        alwaysStat: true,
        ignorePermissionErrors: true,
        // Respect options from compiler watchOptions
        usePolling,
        ...(interval !== undefined ? { interval } : {}),
        ...rest,
      };
    };
    /**
     * @param {(string | Static | undefined)=} optionsForStatic for static
     * @returns {NormalizedStatic} normalized options for static