Updated for M4

dartIrcbot.dart

import "dart:io";
import "dart:utf";
import 'dart:json' as JSON;
import 'dart:async';
import 'dart:isolate' as isolate;
import 'dart:mirrors';

String API_KEY = "INSERT_KEY_HERE";

class Bot {
  Socket _socket;
  String botName = "abourget_dartBot";
  String botChannel = "#montrealpython";
  String ircServer = "irc.freenode.net";
  String superUser = ':[email protected]';
  Bot() {
    Socket.connect(ircServer, 6667).then((socket) {
      _socket = socket;

      // Listen for incoming events now

      socket.listen((event) {
        String data = decodeUtf8(event, 0, event.length);
        print(">>> ${data}");

        List<String> server_response = data.split(' ');
        String command_reply = server_response[0];
        switch (command_reply) {
        case 'PING':
          ircPong(server_response[1]);
          break;

        case superUser:
          if (server_response[1] == "PRIVMSG") {
            if (server_response[3] == ":printnews\r\n") {
              isolate.spawnFunction(isolated_dart_news_stream).call("").then((Map m) {
                m.forEach((k, v) {
                  v = v.replaceAll('\r\n', "").replaceAll('\r', "").replaceAll("\n", "");
                  var send_to_channel = "PRIVMSG ${botChannel} :${v} \r\n";
                  socket.write(send_to_channel);
                });
              });
            }
          }
          break;
        }
      });

      // Bootstrapping connection
      send("NICK $botName");
      send("USER $botName $ircServer bla :$botName");
      send("JOIN ${botChannel}");

    });
  }

  send(String data) {
    if (_socket == null) {
      print("ERROR: Can't send: $data");
      return;
    }
    print("<<< $data");
    _socket.write(data);
    _socket.write("\r\n");
  }

  ircPong(String s) {
    send("PONG ${s.trim()}");
  }
}

void isolated_dart_news_stream() {
  isolate.port.receive((msg, reply) {
    dart_news_stream().then((m) {
      reply.send(m);
      // print(m); /// send news
      isolate.port.close();
    });
  });
}

void isolate_goo_gl_shortner() {
  isolate.port.receive((msg, reply) {
    goo_gl_shortner(msg).then((m) {
      reply.send(m);
      // print(m);
      isolate.port.close();
    });
  });
}

void isolate_goog_gl_shortner_proc() {
  isolate.port.receive((msg, reply) {
    var dart_news = {};
    var args = ["-X", "POST","https://www.googleapis.com/urlshortener/v1/url",
                "-H","Content-Type: application/json", "-d",'{"longUrl": "${msg["url"]}"}'];
    Process.run("curl", args).then((ProcessResult proc_res) {
      if (proc_res.exitCode == 0) {
        Map short_url_map = JSON.parse(proc_res.stdout);
        dart_news[short_url_map["id"]] = "g+/#dartlang: ${msg["title"].trim()} ${short_url_map["id"]}";
      }
      reply.send(dart_news);
      isolate.port.close();
    });
  });
}

Future goo_gl_shortner(dart_items) {
  Completer completer = new Completer();
  Map dart_news = {};
  List<Future> shortner_procs = new List<Future>();
  if (dart_items != null) {
    dart_items.forEach((item) => shortner_procs.add(isolate.spawnFunction(isolate_goog_gl_shortner_proc).call(item)));
  } else {
    print("No news!");
  }

  Future.wait(shortner_procs).then((List<Map> values) {
    values.forEach((Map m) {
      m.keys.forEach((k) {
        dart_news[k] = m[k];
      });
    });
    completer.complete(dart_news);
  });

  return completer.future;
}

Future dart_news_stream() {
  Completer complete = new Completer();
  // Since we do not have https in HttpClient, going to run with curl for now.
  String activity_query = "%23dartlang";
  String gplus_url = "https://www.googleapis.com/plus/v1/activities?query=${activity_query}&key=${API_KEY}&maxResults=3";

  Map dart_news = {};
  Process.run("curl", [gplus_url]).then((ProcessResult proc_res) {
    if (proc_res.exitCode == 0) {
      Map dart_gplus_activities = JSON.parse(proc_res.stdout);
      List<Map> dart_items = dart_gplus_activities["items"];
      isolate.spawnFunction(isolate_goo_gl_shortner).call(dart_items).then((Map m) => complete.complete(m));
    }
  });

  return complete.future;
}


void main() {
  Bot b = new Bot();
}

You must replace the API key, by getting one here:

https://code.google.com/apis/console

Thanks for the starting point here! I've churned this up into a little bot project of my own, and it's updated for Dart 1.1.3!

https://github.com/Term1nal/derpy