As discussed on Gitter, this is a great initiative @tokejepsen.
This touches on two previous topics, including them here for completeness.
Workflow-wise, we'll need to make the GUI work with multiple hosts simultaneously; otherwise you wouldn't be able to publish when awaiting another publish. Graphically, I'm thinking of an "overview page" where each connected host is reflected and can visualise whether a host is currently working or not. Technically this would involve storing the publishing progress within each host such that it could be later retrieved when switching between them in the GUI.
The signalling mechanism is already in place and is what is currently being used to simply show the GUI. This signalling occurs over TCP/IP as RPC via the
xmlrpc standard Python library. It currently supports a few signals (commands, really);
And you can connect and emit these signals from any computer on your network like this.
proxy = xmlrpclib.ServerProxy("http://127.0.0.1:9090")
proxy.show(9001) # Port number of first connected host
127.0.0.1 with any IP address on your network to gain access to it's running instance of Pyblish QML. It always runs on port
9090. If this port is also forwarded externally, you could potentially gain control over the internet (along with everyone else).
This is how you could implement a Deadline plug-in to "signal" completion/failure of a process.
# Not yet implemented
This part is more tricky and something I'll have to think closely about. This implies background and distributed processing, as in the same mechanism could be used to perform multiple plug-ins of any kind even within the same host. Get one, get all.
The tray feature Toke mentioned is indeed planned and will replace the need for
PYBLISH_QML_CONSOLE to get a dedicated terminal for QML output. This will instead end up in it's own window which you can access via a tray icon.
Initially intended to facilitate debugging, it comes naturally that you should be able to do more here, such as status messages, which is what we're talking about currently.