angular-docs-cn/packages/compiler-cli/test/runfile_helpers.ts

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/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import * as fs from 'fs';
import * as path from 'path';
/**
* Gets all built Angular NPM package artifacts by querying the Bazel runfiles.
* In case there is a runfiles manifest (e.g. on Windows), the packages are resolved
* through the manifest because the runfiles are not symlinked and cannot be searched
* within the real filesystem.
*/
export function getAngularPackagesFromRunfiles() {
// Path to the Bazel runfiles manifest if present. This file is present if runfiles are
// not symlinked into the runfiles directory.
const runfilesManifestPath = process.env.RUNFILES_MANIFEST_FILE;
if (!runfilesManifestPath) {
const packageRunfilesDir = path.join(process.env.RUNFILES !, 'angular/packages');
return fs.readdirSync(packageRunfilesDir)
.map(name => ({name, pkgPath: path.join(packageRunfilesDir, name, 'npm_package/')}))
.filter(({pkgPath}) => fs.existsSync(pkgPath));
}
return fs.readFileSync(runfilesManifestPath, 'utf8')
.split('\n')
.map(mapping => mapping.split(' '))
.filter(([runfilePath]) => runfilePath.match(/^angular\/packages\/[\w-]+\/npm_package$/))
.map(([runfilePath, realPath]) => ({
name: path.relative('angular/packages', runfilePath).split(path.sep)[0],
pkgPath: realPath,
}));
}
/**
* Resolves a NPM package from the Bazel runfiles. We need to resolve the Bazel tree
* artifacts using a "resolve file" because the NodeJS module resolution does not allow
* resolving to directory paths.
*/
export function resolveNpmTreeArtifact(manifestPath: string, resolveFile = 'package.json') {
return path.dirname(require.resolve(path.posix.join(manifestPath, resolveFile)));
}