mirror of https://github.com/apache/superset.git
105 lines
2.3 KiB
JavaScript
Executable File
105 lines
2.3 KiB
JavaScript
Executable File
#!/usr/bin/env node
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/**
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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/**
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* Module dependencies.
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*/
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var app = require('../app');
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var debug = require('debug')('client-ws-app:server');
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var http = require('http');
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/**
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* Get port from environment and store in Express.
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*/
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var port = normalizePort(process.env.PORT || '3000');
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app.set('port', port);
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/**
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* Create HTTP server.
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*/
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var server = http.createServer(app);
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/**
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* Listen on provided port, on all network interfaces.
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*/
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server.listen(port);
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server.on('error', onError);
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server.on('listening', onListening);
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/**
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* Normalize a port into a number, string, or false.
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*/
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function normalizePort(val) {
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var port = parseInt(val, 10);
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if (isNaN(port)) {
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// named pipe
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return val;
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}
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if (port >= 0) {
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// port number
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return port;
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}
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return false;
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}
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/**
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* Event listener for HTTP server "error" event.
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*/
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function onError(error) {
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if (error.syscall !== 'listen') {
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throw error;
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}
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var bind = typeof port === 'string' ? 'Pipe ' + port : 'Port ' + port;
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// handle specific listen errors with friendly messages
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switch (error.code) {
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case 'EACCES':
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console.error(bind + ' requires elevated privileges');
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process.exit(1);
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break;
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case 'EADDRINUSE':
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console.error(bind + ' is already in use');
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process.exit(1);
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break;
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default:
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throw error;
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}
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}
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/**
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* Event listener for HTTP server "listening" event.
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*/
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function onListening() {
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var addr = server.address();
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var bind = typeof addr === 'string' ? 'pipe ' + addr : 'port ' + addr.port;
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debug('Listening on ' + bind);
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}
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