Add discovery for yamaha component (#4061)

This uses the discovery code from netdisco/ha to discover yamaha
receivers. The old discovery code remains if discovery is turned of in
HA, at least for now. Though it probably is worth turning that off in
the future.

homeassistant/components/discovery.py

@@ -14,7 +14,7 @@ import voluptuous as vol
 from homeassistant.const import EVENT_HOMEASSISTANT_START
 from homeassistant.helpers.discovery import load_platform, discover
 
-REQUIREMENTS = ['netdisco==0.7.2']
+REQUIREMENTS = ['netdisco==0.7.5']
 
 DOMAIN = 'discovery'
 
@@ -33,6 +33,7 @@ SERVICE_HANDLERS = {
     'plex_mediaserver': ('media_player', 'plex'),
     'roku': ('media_player', 'roku'),
     'sonos': ('media_player', 'sonos'),
+    'yamaha': ('media_player', 'yamaha'),
     'logitech_mediaserver': ('media_player', 'squeezebox'),
     'directv': ('media_player', 'directv'),
 }

homeassistant/components/media_player/yamaha.py

@@ -47,7 +47,18 @@ def setup_platform(hass, config, add_devices, discovery_info=None):
     source_ignore = config.get(CONF_SOURCE_IGNORE)
     source_names = config.get(CONF_SOURCE_NAMES)
 
-    if host is None:
+    if discovery_info is not None:
+        name = discovery_info[0]
+        model = discovery_info[1]
+        ctrl_url = discovery_info[2]
+        desc_url = discovery_info[3]
+        receivers = rxv.RXV(
+            ctrl_url,
+            model_name=model,
+            friendly_name=name,
+            unit_desc_url=desc_url).zone_controllers()
+        _LOGGER.info("Receivers: %s", receivers)
+    elif host is None:
         receivers = []
         for recv in rxv.find():
             receivers.extend(recv.zone_controllers())
@@ -73,8 +84,8 @@ class YamahaDevice(MediaPlayerDevice):
         self._pwstate = STATE_OFF
         self._current_source = None
         self._source_list = None
-        self._source_ignore = source_ignore
-        self._source_names = source_names
+        self._source_ignore = source_ignore or []
+        self._source_names = source_names or {}
         self._reverse_mapping = None
         self.update()
         self._name = name

requirements_all.txt

@@ -271,7 +271,7 @@ mficlient==0.3.0
 miflora==0.1.9
 
 # homeassistant.components.discovery
-netdisco==0.7.2
+netdisco==0.7.5
 
 # homeassistant.components.sensor.neurio_energy
 neurio==0.2.10