puppeteer/packages/puppeteer/install.js

/**
 * Copyright 2017 Google Inc. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * This file is part of public API.
 *
 * By default, the `puppeteer` package runs this script during the installation
 * process unless one of the env flags is provided.
 * `puppeteer-core` package doesn't include this step at all. However, it's
 * still possible to install a supported browser using this script when
 * necessary.
 */

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

// Need to ensure TS is compiled before loading the installer
if (!fs.existsSync(path.join(__dirname, 'lib'))) {
  console.warn(
    'Skipping browser installation because the Puppeteer build is not available. Run `npm install` again after you have re-built Puppeteer.'
  );
  process.exit(0);
}

try {
  const {downloadBrowser} = require('puppeteer/internal/node/install.js');
  downloadBrowser();
} catch (err) {
  console.warn('Browser download failed', err);
}