playwright/src/driver.ts

/**
 * Copyright (c) Microsoft Corporation.
 *
 * 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.
 */

import * as fs from 'fs';
import * as util from 'util';
import { installDebugController } from './debug/debugController';
import { DispatcherConnection } from './dispatchers/dispatcher';
import { PlaywrightDispatcher } from './dispatchers/playwrightDispatcher';
import { installBrowsersWithProgressBar } from './install/installer';
import { Transport } from './protocol/transport';
import { Electron } from './server/electron/electron';
import { Playwright } from './server/playwright';
import { gracefullyCloseAll } from './server/processLauncher';
import { installTracer } from './trace/tracer';


const readFileAsync = util.promisify(fs.readFile);
const writeFileAsync = util.promisify(fs.writeFile);

export async function copyPrintDeps(destination: string) {
  const content = await readFileAsync(require.resolve('../bin/PrintDeps.exe'));
  await writeFileAsync(destination, content);
}

export async function installWithProgressBar(location: string) {
  await installBrowsersWithProgressBar(location);
}

export async function apiJson(): Promise<string> {
  return (await readFileAsync(require.resolve('../docs/api.json'))).toString();
}

export function runServer() {
  installDebugController();
  installTracer();

  const dispatcherConnection = new DispatcherConnection();
  const transport = new Transport(process.stdout, process.stdin);
  transport.onclose = async () => {
    // Force exit after 30 seconds.
    setTimeout(() => process.exit(0), 30000);
    // Meanwhile, try to gracefully close all browsers.
    await gracefullyCloseAll();
    process.exit(0);
  };
  transport.onmessage = message => dispatcherConnection.dispatch(JSON.parse(message));
  dispatcherConnection.onmessage = message => transport.send(JSON.stringify(message));

  const playwright = new Playwright(__dirname, require('../browsers.json')['browsers']);
  (playwright as any).electron = new Electron();
  new PlaywrightDispatcher(dispatcherConnection.rootDispatcher(), playwright);
}