protevus/bin/common.dart
2017-06-10 11:24:36 -04:00

65 lines
2.2 KiB
Dart

import 'dart:io';
import 'dart:isolate';
import 'package:angel/angel.dart';
import 'package:angel_diagnostics/angel_diagnostics.dart';
import 'package:angel_hot/angel_hot.dart';
import 'package:intl/intl.dart';
/// Start a single instance of this application.
///
/// If a [sendPort] is provided, then the URL of the mounted server will be sent through the port.
/// Use this if you are starting multiple instances of your server.
startServer(args, {SendPort sendPort}) {
return () async {
var app = await createServer();
var dateFormat = new DateFormat("y-MM-dd");
var logFile = new File("logs/${dateFormat.format(new DateTime.now())}.txt");
InternetAddress host;
int port;
// Load the right host and port from application config.
host = new InternetAddress(app.properties['host']);
// Listen on port 0 if we are using the load balancer.
port = sendPort != null ? 0 : app.properties['port'];
// Log requests and errors to a log file.
await app.configure(logRequests(logFile));
HttpServer server;
// Use `package:angel_hot` in any case, EXCEPT if starting in production mode.
//
// With hot-reloading, our server will automatically reload in-place on file changes,
// for a faster development cycle. :)
if (Platform.environment['ANGEL_ENV'] == 'production')
server = await app.startServer(host, port);
else {
var hot = new HotReloader(() async {
// If we are hot-reloading, we need to provide a callback
// to use to start a fresh instance on-the-fly.
var app = await createServer();
await app.configure(logRequests(logFile));
return app;
},
// Paths we might want to listen for changes on...
[
new Directory('config'),
new Directory('lib'),
new Directory('views')
]);
server = await hot.startServer(host, port);
}
if (sendPort == null) {
print('Listening at http://${server.address.address}:${server.port}');
} else
sendPort?.send([server.address.address, server.port]);
};
}
onError(error, [StackTrace stackTrace]) {
stderr.writeln("Unhandled error occurred: $error");
if (stackTrace != null) {
stderr.writeln(stackTrace);
}
}