Function attachStudioReadyHandler

packages/cli/src/commands/preview.ts:718–744

(
  child: StudioChildProcess,
  spinner: ReturnType<typeof clack.spinner>,
  projectName: string,
  options?: BrowserLaunchOptions,
)

}

function attachStudioReadyHandler(
  child: StudioChildProcess,
  spinner: ReturnType<typeof clack.spinner>,
  projectName: string,
  options?: BrowserLaunchOptions,
): void {
  let detected = false;

  function handleOutput(data: Buffer): void {
    const url = data.toString().match(/Local:\s+(http:\/\/localhost:\d+)/)?.[1];
    if (!url || detected) return;

    detected = true;
    spinner.stop(c.success("Studio running"));
    printStudioSummary(projectName, url, { footer: "Press Ctrl+C to stop" });
    openStudioBrowser(url, projectName, options);
    child.stdout.removeListener("data", handleOutput);
    child.stderr.removeListener("data", handleOutput);
  }

  child.stdout.on("data", handleOutput);
  child.stderr.on("data", handleOutput);
  child.on("error", (err) => {
    spinner.stop(c.error("Failed to start studio"));
    console.error(c.dim(err.message));
  });
}

/**
 * Dev mode: spawn the studio dev server from the monorepo.