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
50 lines
1.7 KiB
TypeScript
50 lines
1.7 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 path from 'path';
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import {exec} from './utils.mjs';
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/** Branded string representing a resolved Bazel benchmark target. */
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export type ResolvedTarget = string & {
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__resolvedTarget: true;
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};
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/** Finds all benchmark Bazel targets in the project. */
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export async function findBenchmarkTargets(): Promise<string[]> {
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return (
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await exec('bazel', [
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'query',
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'--output=label',
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`'kind("^web_test", //modules/...) intersect attr("name", "perf", //modules/...)'`,
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])
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)
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.split(/\r?\n/)
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.filter((t) => t !== '');
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}
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/** Gets the testlog path of a given Bazel target. */
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export async function getTestlogPath(target: ResolvedTarget): Promise<string> {
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return path.join(await bazelTestlogDir(), target.substring(2).replace(':', '/'));
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}
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/** Resolves a given benchmark Bazel target to the fully expanded label. */
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export async function resolveTarget(target: string): Promise<ResolvedTarget> {
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// If the target does not specify an explicit browser test target, we attempt
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// to automatically add the Chromium suffix. This is necessary for e.g.
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// resolving testlogs which would reside under the actual test target.
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if (!target.endsWith('_chromium')) {
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target = `${target}_chromium`;
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}
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return (await exec('bazel', ['query', '--output=label', target])).trim() as ResolvedTarget;
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}
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let testlogDir: string | null = null;
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async function bazelTestlogDir(): Promise<string> {
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return testlogDir ?? (testlogDir = (await exec('bazel', ['info', 'bazel-testlogs'])).trim());
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}
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