/** * 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. */ var readline = require('readline'); var await = require('./utilities').await; var os = require('os'); class System { /** * @param {!Array} args */ constructor(args) { this.args = args; this.env = {}; Object.assign(this.env, process.env); this.stdin = new StandardInput(process.stdin); this.stdout = new StandardOutput(process.stdout); this.stderr = new StandardOutput(process.stderr); this.platform = "phantomjs"; this.pid = process.pid; this.isSSLSupported = false; this.os = { architecture: os.arch(), name: os.type(), version: os.release() }; } } class StandardInput { /** * @param {!Readable} readableStream */ constructor(readableStream) { this._readline = readline.createInterface({ input: readableStream }); this._lines = []; this._closed = false; this._readline.on('line', line => this._lines.push(line)); this._readline.on('close', () => this._closed = true); } /** * @return {string} */ readLine() { if (this._closed && !this._lines.length) return ''; if (!this._lines.length) { var linePromise = new Promise(fulfill => this._readline.once('line', fulfill)); await(linePromise); } return this._lines.shift(); } /** * @return {string} */ read() { if (!this._closed) { var closePromise = new Promise(fulfill => this._readline.once('close', fulfill)); await(closePromise); } var text = this._lines.join('\n'); this._lines = []; return text; } close() { this._readline.close(); } } class StandardOutput { /** * @param {!Writable} writableStream */ constructor(writableStream) { this._stream = writableStream; } /** * @param {string} data */ write(data) { this._stream.write(data); } /** * @param {string} data */ writeLine(data) { this._stream.write(data + '\n'); } flush() { } close() { this._stream.end(); } } module.exports = System;