Class NonInteractiveSpinner

packages/react-email/src/cli/utils/spinner.ts:66–139

};

class NonInteractiveSpinner implements Spinner {
  running = false;

  private text = '';
  private prefixText = '';
  private readonly stream: NodeJS.WriteStream;
  private lastLoggedLine: string | undefined;

  constructor(display: SpinnerDisplay) {
    if (typeof display === 'string') {
      this.text = display;
      this.stream = process.stdout;
    } else {
      this.text = display.text ?? '';
      this.prefixText = display.prefixText ?? '';
      this.stream = display.stream ?? process.stdout;
    }
  }

  start(): void {
    this.running = true;
    this.log();
  }

  stop(): void {
    this.running = false;
  }

  setText(text: string): void {
    this.text = text;
    if (this.running) {
      this.log();
    }
  }

  setDisplay(display: DisplayOptions & { symbol?: string }): void {
    if (typeof display.text === 'string') {
      this.text = display.text;
    }
    const { symbol } = display;
    this.log(symbol);
    if (typeof symbol === 'string') {
      this.running = false;
    }
  }

  succeed(display?: string | DisplayOptions): void {
    this.finish('✔', display);
  }

  fail(display?: string | DisplayOptions): void {
    this.finish('✖', display);
  }

  private finish(symbol: string, display?: string | DisplayOptions): void {
    if (typeof display === 'string') {
      this.text = display;
    } else if (typeof display?.text === 'string') {