Improve bond startup performance (#37900)

homeassistant/components/bond/cover.py

@@ -21,11 +21,9 @@ async def async_setup_entry(
     """Set up Bond cover devices."""
     hub: BondHub = hass.data[DOMAIN][entry.entry_id]
 
-    devices = await hass.async_add_executor_job(hub.get_bond_devices)
-
     covers = [
         BondCover(hub, device)
-        for device in devices
+        for device in hub.devices
         if device.type == DeviceTypes.MOTORIZED_SHADES
     ]
 

homeassistant/components/bond/fan.py

@@ -32,11 +32,9 @@ async def async_setup_entry(
     """Set up Bond fan devices."""
     hub: BondHub = hass.data[DOMAIN][entry.entry_id]
 
-    devices = await hass.async_add_executor_job(hub.get_bond_devices)
-
     fans = [
         BondFan(hub, device)
-        for device in devices
+        for device in hub.devices
         if device.type == DeviceTypes.CEILING_FAN
     ]
 

homeassistant/components/bond/light.py

@@ -26,18 +26,16 @@ async def async_setup_entry(
     """Set up Bond light devices."""
     hub: BondHub = hass.data[DOMAIN][entry.entry_id]
 
-    devices = await hass.async_add_executor_job(hub.get_bond_devices)
-
     lights = [
         BondLight(hub, device)
-        for device in devices
+        for device in hub.devices
         if device.type == DeviceTypes.CEILING_FAN and device.supports_light()
     ]
     async_add_entities(lights, True)
 
     fireplaces = [
         BondFireplace(hub, device)
-        for device in devices
+        for device in hub.devices
         if device.type == DeviceTypes.FIREPLACE
     ]
     async_add_entities(fireplaces, True)

homeassistant/components/bond/switch.py

@@ -21,11 +21,9 @@ async def async_setup_entry(
     """Set up Bond generic devices."""
     hub: BondHub = hass.data[DOMAIN][entry.entry_id]
 
-    devices = await hass.async_add_executor_job(hub.get_bond_devices)
-
     switches = [
         BondSwitch(hub, device)
-        for device in devices
+        for device in hub.devices
         if device.type == DeviceTypes.GENERIC_DEVICE
     ]
 

homeassistant/components/bond/utils.py

@@ -59,15 +59,15 @@ class BondHub:
         """Initialize Bond Hub."""
         self.bond: Bond = bond
         self._version: Optional[dict] = None
+        self._devices: Optional[List[BondDevice]] = None
 
     def setup(self):
         """Read hub version information."""
         self._version = self.bond.getVersion()
 
-    def get_bond_devices(self) -> List[BondDevice]:
-        """Fetch all available devices using Bond API."""
+        # Fetch all available devices using Bond API.
         device_ids = self.bond.getDeviceIds()
-        devices = [
+        self._devices = [
             BondDevice(
                 device_id,
                 self.bond.getDevice(device_id),
@@ -75,7 +75,6 @@ class BondHub:
             )
             for device_id in device_ids
         ]
-        return devices
 
     @property
     def bond_id(self) -> str:
@@ -91,3 +90,8 @@ class BondHub:
     def fw_ver(self) -> str:
         """Return this hub firmware version."""
         return self._version.get("fw_ver")
+
+    @property
+    def devices(self) -> List[BondDevice]:
+        """Return a list of all devices controlled by this hub."""
+        return self._devices

tests/components/bond/common.py

@@ -46,10 +46,7 @@ async def setup_platform(
 
     with patch("homeassistant.components.bond.PLATFORMS", [platform]), patch(
         "homeassistant.components.bond.Bond.getVersion", return_value=MOCK_HUB_VERSION
-    ), patch(
-        "homeassistant.components.bond.Bond.getDeviceIds",
-        return_value=[bond_device_id],
-    ), patch(
+    ), patch_bond_device_ids(return_value=[bond_device_id],), patch(
         "homeassistant.components.bond.Bond.getDevice", return_value=discovered_device
     ), patch_bond_device_state(
         return_value={}
@@ -62,6 +59,16 @@ async def setup_platform(
     return mock_entry
 
 
+def patch_bond_device_ids(return_value=None):
+    """Patch Bond API getDeviceIds command."""
+    if return_value is None:
+        return_value = []
+
+    return patch(
+        "homeassistant.components.bond.Bond.getDeviceIds", return_value=return_value,
+    )
+
+
 def patch_bond_turn_on():
     """Patch Bond API turnOn command."""
     return patch("homeassistant.components.bond.Bond.turnOn")

tests/components/bond/test_init.py

@@ -6,7 +6,7 @@ from homeassistant.core import HomeAssistant
 from homeassistant.helpers import device_registry as dr
 from homeassistant.setup import async_setup_component
 
-from .common import setup_bond_entity
+from .common import patch_bond_device_ids, setup_bond_entity
 
 from tests.async_mock import patch
 from tests.common import MockConfigEntry
@@ -30,7 +30,9 @@ async def test_async_setup_entry_sets_up_hub_and_supported_domains(hass: HomeAss
         domain=DOMAIN, data={CONF_HOST: "1.1.1.1", CONF_ACCESS_TOKEN: "test-token"},
     )
 
-    with patch_setup_entry("cover") as mock_cover_async_setup_entry, patch_setup_entry(
+    with patch_bond_device_ids(), patch_setup_entry(
+        "cover"
+    ) as mock_cover_async_setup_entry, patch_setup_entry(
         "fan"
     ) as mock_fan_async_setup_entry, patch_setup_entry(
         "light"
@@ -75,9 +77,9 @@ async def test_unload_config_entry(hass: HomeAssistant):
         domain=DOMAIN, data={CONF_HOST: "1.1.1.1", CONF_ACCESS_TOKEN: "test-token"},
     )
 
-    with patch_setup_entry("cover"), patch_setup_entry("fan"), patch_setup_entry(
-        "light"
-    ), patch_setup_entry("switch"):
+    with patch_bond_device_ids(), patch_setup_entry("cover"), patch_setup_entry(
+        "fan"
+    ), patch_setup_entry("light"), patch_setup_entry("switch"):
         result = await setup_bond_entity(hass, config_entry)
         assert result is True
         await hass.async_block_till_done()