feat: initial release of interactive electrical circuit & panel mapper

bin/www

@@ -0,0 +1,45 @@
+#!/usr/bin/env node
+'use strict';
+
+const http = require('http');
+const app = require('../app');
+const conf = require('../conf/base');
+
+const port = normalizePort(process.env.PORT || conf.port || '3456');
+app.set('port', port);
+
+const server = http.createServer(app);
+
+server.listen(port);
+server.on('error', onError);
+server.on('listening', onListening);
+
+function normalizePort(val) {
+  const port = parseInt(val, 10);
+  if (isNaN(port)) return val;
+  if (port >= 0) return port;
+  return false;
+}
+
+function onError(error) {
+  if (error.syscall !== 'listen') throw error;
+  const bind = typeof port === 'string' ? 'Pipe ' + port : 'Port ' + port;
+  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;
+  }
+}
+
+function onListening() {
+  const addr = server.address();
+  const bind = typeof addr === 'string' ? 'pipe ' + addr : 'http://localhost:' + addr.port;
+  console.log(`⚡ Electrical Chart & Mapping Server listening at ${bind}`);
+}