73 lines
1.8 KiB
JavaScript
73 lines
1.8 KiB
JavaScript
import { fileURLToPath } from 'url';
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import { execaCommand } from 'execa';
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import { markdownTable } from 'markdown-table';
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import { astroBin, calculateStat } from './_util.js';
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/** Default project to run for this benchmark if not specified */
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export const defaultProject = 'render-default';
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/**
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* @param {URL} projectDir
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* @param {URL} outputFile
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*/
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export async function run(projectDir, outputFile) {
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const root = fileURLToPath(projectDir);
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console.log('Benchmarking `astro --help`...');
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const helpStat = await benchmarkCommand(`node ${astroBin} --help`, root);
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console.log('Done');
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console.log('Benchmarking `astro info`...');
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const infoStat = await benchmarkCommand(`node ${astroBin} info`, root);
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console.log('Done');
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console.log('Result preview:');
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console.log('='.repeat(10));
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console.log(`#### CLI Startup\n\n`);
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console.log(
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printResult({
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'astro --help': helpStat,
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'astro info': infoStat,
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})
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);
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console.log('='.repeat(10));
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}
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/**
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* @param {string} command
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* @param {string} root
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* @returns {Promise<import('./_util.js').Stat>}
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*/
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async function benchmarkCommand(command, root) {
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/** @type {number[]} */
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const durations = [];
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for (let i = 0; i < 10; i++) {
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const start = performance.now();
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await execaCommand(command, { cwd: root });
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durations.push(performance.now() - start);
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}
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// From the 10 durations, calculate average, standard deviation, and max value
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return calculateStat(durations);
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}
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/**
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* @param {Record<string, import('./_util.js').Stat>} result
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*/
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function printResult(result) {
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return markdownTable(
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[
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['Command', 'Avg (ms)', 'Stdev (ms)', 'Max (ms)'],
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...Object.entries(result).map(([command, { avg, stdev, max }]) => [
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command,
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avg.toFixed(2),
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stdev.toFixed(2),
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max.toFixed(2),
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]),
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],
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{
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align: ['l', 'r', 'r', 'r'],
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}
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);
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}
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