Method isPortAvailable

src/index.ts:45–55

* Checks if a port is available to listen on.

(port: number)

   * Checks if a port is available to listen on.
   */
  private isPortAvailable(port: number): Promise<boolean> {
    return new Promise((resolve) => {
      const server = net.createServer();
      server.once("error", () => resolve(false));
      server.once("listening", () => {
        server.close();
        resolve(true);
      });
      server.listen(port);
    });
  }

  /**
   * Scans for an existing DocsAgent service or an available port.