| /** |
| Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements. See the NOTICE file |
| distributed with this work for additional information |
| regarding copyright ownership. The ASF licenses this file |
| to you 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. |
| */ |
| |
| /* globals Promise: true */ |
| |
| const chalk = require('chalk'); |
| const express = require('express'); |
| |
| /** |
| * @desc Launches a server with the specified options and optional custom handlers. |
| * @param {{root: ?string, port: ?number, noLogOutput: ?bool, noServerInfo: ?bool, router: ?express.Router, events: EventEmitter}} opts |
| * @returns {*|promise} |
| */ |
| module.exports = function (opts) { |
| const that = this; |
| const promise = new Promise((resolve, reject) => { |
| opts = opts || {}; |
| let port = opts.port || 8000; |
| |
| const log = module.exports.log = msg => { |
| if (!opts.noLogOutput) { |
| if (opts.events) { |
| opts.events.emit('log', msg); |
| } else { |
| console.log(msg); |
| } |
| } |
| }; |
| |
| const app = that.app; |
| const server = require('http').Server(app); |
| that.server = server; |
| |
| if (opts.router) { |
| app.use(opts.router); |
| } |
| |
| if (opts.root) { |
| that.root = opts.root; |
| app.use(express.static(opts.root)); |
| } |
| |
| // If we have a project root, make that available as a static root also. This can be useful in cases where source |
| // files that have been transpiled (such as TypeScript) are located under the project root on a path that mirrors |
| // the the transpiled file's path under the platform root and is pointed to by a map file. |
| if (that.projectRoot) { |
| app.use(express.static(that.projectRoot)); |
| } |
| |
| const listener = server.listen(port); |
| listener.on('listening', () => { |
| that.port = port; |
| const message = `Static file server running on: ${chalk.green(`http://localhost:${port}`)} (CTRL + C to shut down)`; |
| if (!opts.noServerInfo) { |
| log(message); |
| } |
| resolve(message); |
| }); |
| listener.on('error', e => { |
| if (e && e.toString().indexOf('EADDRINUSE') > -1) { |
| port++; |
| server.listen(port); |
| } else { |
| reject(e); |
| } |
| }); |
| }); |
| return promise; |
| }; |