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065ac4546f
npm 7.5.6 contains several fixes that allow it to work successfully with the Angular CLI. The minimum npm engine value is now set to support npm versions greater than 7.5.6 (npm 6 support remains unchanged). A warning will be shown to users with npm 7 versions less than 7.5.6 when used with the new, add, or update commands.
85 lines
2.4 KiB
TypeScript
85 lines
2.4 KiB
TypeScript
/**
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* @license
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* Copyright Google Inc. 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 { execSync } from 'child_process';
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import { existsSync } from 'fs';
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import { join } from 'path';
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import { satisfies, valid } from 'semver';
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import { PackageManager } from '../lib/config/schema';
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import { getConfiguredPackageManager } from './config';
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function supports(name: string): boolean {
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try {
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execSync(`${name} --version`, { stdio: 'ignore' });
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return true;
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} catch {
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return false;
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}
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}
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export function supportsYarn(): boolean {
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return supports('yarn');
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}
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export function supportsNpm(): boolean {
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return supports('npm');
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}
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export async function getPackageManager(root: string): Promise<PackageManager> {
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let packageManager = await getConfiguredPackageManager() as PackageManager | null;
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if (packageManager) {
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return packageManager;
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}
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const hasYarn = supportsYarn();
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const hasYarnLock = existsSync(join(root, 'yarn.lock'));
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const hasNpm = supportsNpm();
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const hasNpmLock = existsSync(join(root, 'package-lock.json'));
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if (hasYarn && hasYarnLock && !hasNpmLock) {
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packageManager = PackageManager.Yarn;
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} else if (hasNpm && hasNpmLock && !hasYarnLock) {
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packageManager = PackageManager.Npm;
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} else if (hasYarn && !hasNpm) {
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packageManager = PackageManager.Yarn;
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} else if (hasNpm && !hasYarn) {
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packageManager = PackageManager.Npm;
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}
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// TODO: This should eventually inform the user of ambiguous package manager usage.
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// Potentially with a prompt to choose and optionally set as the default.
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return packageManager || PackageManager.Npm;
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}
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/**
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* Checks if the npm version is a supported 7.x version. If not, display a warning.
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*/
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export async function ensureCompatibleNpm(root: string): Promise<void> {
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if ((await getPackageManager(root)) !== PackageManager.Npm) {
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return;
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}
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try {
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const versionText = execSync('npm --version', {encoding: 'utf8', stdio: 'pipe'}).trim();
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const version = valid(versionText);
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if (!version) {
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return;
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}
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if (satisfies(version, '>=7 <7.5.6')) {
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// tslint:disable-next-line: no-console
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console.warn(
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`npm version ${version} detected.` +
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' When using npm 7 with the Angular CLI, npm version 7.5.6 or higher is recommended.',
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);
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}
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} catch {
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// npm is not installed
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}
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}
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