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whooshy/bin/www

102 lines
1.9 KiB
JavaScript

#!/usr/bin/env node
/**
* Module dependencies.
*/
const app = require('../app');
const debug = require('debug')('whooshy:server');
const http = require('http');
const yaml = require('js-yaml');
const fsx = require('fs-extra');
try {
let settings = yaml.safeLoad(fsx.readFileSync('default-config.yaml'));
if (fsx.existsSync('config.yaml'))
Object.assign(settings, yaml.safeLoad(fsx.readFileSync('config.yaml')));
} catch (err) {
console.error(err);
}
/**
* Get port from environment and store in Express.
*/
let port = normalizePort(process.env.PORT || settings.port || '3000');
app.set('port', port);
/**
* Create HTTP server.
*/
let server = http.createServer(app);
/**
* Listen on provided port, on all network interfaces.
*/
server.listen(port);
server.on('error', onError);
server.on('listening', onListening);
/**
* Normalize a port into a number, string, or false.
*/
function normalizePort(val) {
let port = parseInt(val, 10);
if (isNaN(port)) {
// named pipe
return val;
}
if (port >= 0) {
// port number
return port;
}
return false;
}
/**
* Event listener for HTTP server "error" event.
*/
function onError(error) {
if (error.syscall !== 'listen') {
throw error;
}
let bind = typeof port === 'string'
? 'Pipe ' + port
: 'Port ' + port;
// handle specific listen errors with friendly messages
switch (error.code) {
case 'EACCES':
console.error(bind + ' requires elevated privileges');
process.exit(1);
break;
case 'EADDRINUSE':
console.error(bind + ' is already in use');
process.exit(1);
break;
default:
throw error;
}
}
/**
* Event listener for HTTP server "listening" event.
*/
function onListening() {
let addr = server.address();
let bind = typeof addr === 'string'
? 'pipe ' + addr
: 'port ' + addr.port;
debug('Listening on ' + bind);
}