mirror of
https://github.com/angular/angular
synced 2026-05-24 09:28:37 +00:00
bb52edee31
This commit creates a new script that solves the following use-cases: - Running benchmarks. It's not trivial to figure out the benchmark target names, and it's also easy to mess up the right Bazel flags. - Performing comparisons. When e.g. working on a runtime senstive change, it should be trivial to run benchmarks between the current working stage, and a base revision (e.g. `main`). The script takes care of both these use-cases and comes with a prompt-based command line tool experience. The script will also be used by a future GitHub action that can run comparisons triggered via GitHub PR comment (by trusted team members). PR Close #50745
51 lines
1.4 KiB
TypeScript
51 lines
1.4 KiB
TypeScript
/**
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* @license
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* Copyright Google LLC All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {Log} from '@angular/ng-dev';
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import childProcess from 'child_process';
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import path from 'path';
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import url from 'url';
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const scriptDir = path.dirname(url.fileURLToPath(import.meta.url));
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/** Absolute disk path to the project directory. */
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export const projectDir = path.join(scriptDir, '../..');
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/**
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* Executes the given command, forwarding stdin, stdout and stderr while
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* still capturing stdout in order to return it.
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*/
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export function exec(cmd: string, args: string[] = []): Promise<string> {
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return new Promise((resolve, reject) => {
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Log.info('Running command:', cmd, args.join(' '));
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const proc = childProcess.spawn(cmd, args, {
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shell: true,
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cwd: projectDir,
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// Only capture `stdout`. Forward the rest to the parent TTY.
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stdio: ['inherit', 'pipe', 'inherit'],
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});
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let stdout = '';
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proc.stdout.on('data', (chunk) => {
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stdout += chunk.toString('utf8');
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process.stdout.write(chunk);
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});
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proc.on('close', (status, signal) => {
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if (status !== 0 || signal !== null) {
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reject(`Command failed. Status code: ${status}. Signal: ${signal}`);
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}
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resolve(stdout);
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});
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proc.on('error', (err) => {
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reject(`Command failed: ${err}`);
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});
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});
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}
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