Method watch

packages/nodebox/src/modules/fs.ts:174–195

* Subscribe to changes at the given file or directory.

(
    includes: string[],
    excludes: string[],
    listener?: (evt?: FileWatchEvent) => void
  )

   * Subscribe to changes at the given file or directory.
   */
  public async watch(
    includes: string[],
    excludes: string[],
    listener?: (evt?: FileWatchEvent) => void
  ): Promise<{ dispose: () => Promise<void> }> {
    const watcherId = cuid();

    await this.channel.send('fs/watch', { watcherId, includes, excludes });

    this.channel.on('fs/watch-event', ({ data }) => {
      if (data.watcherId === watcherId && listener) {
        const evt = { ...data } as FSWatchEvent;
        // @ts-ignore
        delete evt.watcherId;
        listener(evt);
      }
    });

    return {
      dispose: () => this.channel.send('fs/unwatch', { watcherId }),
    };
  }
}