Function measure

src/scripts/measure.ts:47–80

(framework: string)

console.table(getTable(results));

async function measure(framework: string) {
  const { process: runningProcess, port } = await preview(framework);
  // Give the server a sec to start up
  await sleep(2000);

  const measureUrl = `http://localhost:${port}${path}`;
  console.info(
    `Getting lighthouse report for ${chalk.green(framework)} on ${measureUrl}`
  );

  const { report } = await getLighthouseReport(measureUrl, RUNS);
  results[framework] = getSimpleReport(report);

  const outputDir = 'apps/components/src/reports';
  const pathFragment = path === '/' ? '/' : path + '/';
  const jsonPath = `${outputDir}${pathFragment}${framework}.json`;
  const jsPath = `${outputDir}${pathFragment}${framework}.ts`;

  if (process.env.NO_WRITE !== 'true') {
    await Promise.all([
      // Output results to a JSON file
      fs.outputFile(jsonPath, JSON.stringify(report, null, 2)),
      // Output results to a TS file for importing
      fs.outputFile(
        jsPath,
        `export default ${JSON.stringify(report, null, 2)} as LH.Result`
      ),
    ]);
  }

  // Don't throw an error when we kill the process below
  runningProcess.catch(() => null);
  await runningProcess.kill();
}