Create a ruby web server

[orta]

The web socket connection needs to connect from both sides, so from the ruby side you'll need something that can pass message around.

The types of messages I expect it to send to the native client:

• Starting a compilation of files x, y, z
• New NSBundle for tests available in the app's sandbox
• Server is shutting down

The types of messages I expect to receive from the client

• This is my current working directory
• Test run has started
• Test run has passed/failed metadata
• I'm closing down

When building out my proof of concept, this is the code I used to set up my socket.

require 'faye/websocket'
Faye::WebSocket.load_adapter('thin')

App = lambda do |env|
  if Faye::WebSocket.websocket?(env)
    ws = Faye::WebSocket.new(env)

    ws.on :message do |event|
      ws.send(event.data)
    end

    ws.on :close do |event|
      p [:close, event.code, event.reason]
      ws = nil
    end

    # Return async Rack response
    ws.rack_response

  else
    # Normal HTTP request
    [200, {'Content-Type' => 'text/plain'}, ['Hello']]
  end
end