Use our mirror of the registry rather than the existing one

src/constants.js

@@ -15,6 +15,8 @@ export const DEPENDENCY_TYPES = [
  'peerDependencies',
];

export const YARN_REGISTRY = 'https://registry.yarnpkg.com';

// lockfile version, bump whenever we make backwards incompatible changes
export const LOCKFILE_VERSION = 1;

src/registries/yarn-registry.js

@@ -2,6 +2,7 @@

import type RequestManager from '../util/request-manager.js';
import type {ConfigRegistries} from '../config.js';
import {YARN_REGISTRY} from '../constants.js';
import NpmRegistry from './npm-registry.js';
import stringify from '../lockfile/stringify.js';
import parse from '../lockfile/parse.js';
@@ -12,7 +13,7 @@ const defaults = require('defaults');
const path = require('path');
const pkg = require('../../package.json');

const DEFAULTS = {
export const DEFAULTS = {
  'version-tag-prefix': 'v',
  'version-git-tag': true,
  'version-git-sign': false,
@@ -24,7 +25,7 @@ const DEFAULTS = {
  'save-prefix': '^',
  'ignore-scripts': false,
  'ignore-optional': true,
  registry: 'http://registry.npmjs.org',
  registry: YARN_REGISTRY,
  'user-agent': [
    `yarn/${pkg.version}`,
    'npm/?',

src/resolvers/registries/npm-resolver.js

@@ -7,10 +7,13 @@ import RegistryResolver from './registry-resolver.js';
import NpmRegistry from '../../registries/npm-registry.js';
import map from '../../util/map.js';
import * as fs from '../../util/fs.js';
import {YARN_REGISTRY} from '../../constants.js';

const invariant = require('invariant');
const path = require('path');

const NPM_REGISTRY = /http[s]:\/\/registry.npmjs.org/g;

type RegistryResponse = {
  name: string,
  versions: { [key: string]: Manifest },
@@ -122,6 +125,14 @@ export default class NpmResolver extends RegistryResolver {
    }
  }

  cleanRegistry(url: string): string {
    if (this.config.getOption('registry') === YARN_REGISTRY) {
      return url.replace(NPM_REGISTRY, YARN_REGISTRY);
    } else {
      return url;
    }
  }

  async resolve(): Promise<Manifest> {
    // lockfile
    const shrunk = this.request.getLocked('tarball');
@@ -146,7 +157,7 @@ export default class NpmResolver extends RegistryResolver {

    if (info.dist && info.dist.tarball) {
      info._remote = {
        resolved: `${info.dist.tarball}#${info.dist.shasum}`,
        resolved: `${this.cleanRegistry(info.dist.tarball)}#${info.dist.shasum}`,
        type: 'tarball',
        reference: info.dist.tarball,
        hash: info.dist.shasum,