fedmsg-notify

Subscribing to the Fedora Infrastructure Messsage Bus on the desktop.

Features

• A dbus-activated fedmsg-notify-daemon that consumes every message from the Fedora Infrastructure Messaging bus.

• A fedmsg-notify-config graphical interface that lets you filter which messages to display

Installing

Due to a dependency on Twisted's gtk3reactor, fedmsg-notify is currently only available on Fedora 18.

yum -y install fedmsg-notify

Running

Once installed the "Fedmsg Notification Configuration" should appear in your application menu. You can also run fedmsg-notify-config by hand, or python -m fedmsg_notify.gui from git.

Writing applications that consume fedmsg messages through DBus

The fedmsg-notify-daemon has the ability to relay messages over DBus. When enabled, it will trigger a org.fedoraproject.fedmsg.notify.MessageReceived signal upon each message. This behavior can be enabled by running:

gsettings set org.fedoraproject.fedmsg.notify emit-dbus-signals true

Here is an example of a basic Python program that listens to fedmsg-notify signals over DBus.

import json
import dbus

from gi.repository import GObject
from dbus.mainloop.glib import DBusGMainLoop

def consume(topic, body):
    print(topic)
    print(json.loads(body))

DBusGMainLoop(set_as_default=True)
bus = dbus.SessionBus()
bus.add_signal_receiver(consume, signal_name='MessageReceived',
                        dbus_interface='org.fedoraproject.fedmsg.notify',
                        path='/org/fedoraproject/fedmsg/notify')
loop = GObject.MainLoop()
loop.run()