Add release_notes method to update entities

homeassistant/components/demo/update.py

@@ -71,6 +71,7 @@ async def async_setup_platform(
                 latest_version="1.94.2",
                 support_progress=True,
                 release_summary="Added support for effects",
+                support_release_notes=True,
                 release_url="https://www.example.com/release/1.93.3",
                 device_class=UpdateDeviceClass.FIRMWARE,
             ),
@@ -109,6 +110,7 @@ def __init__(
         release_url: str | None = None,
         support_progress: bool = False,
         support_install: bool = True,
+        support_release_notes: bool = False,
         device_class: UpdateDeviceClass | None = None,
     ) -> None:
         """Initialize the Demo select entity."""
@@ -133,6 +135,9 @@ def __init__(
         if support_progress:
             self._attr_supported_features |= UpdateEntityFeature.PROGRESS
 
+        if support_release_notes:
+            self._attr_supported_features |= UpdateEntityFeature.RELEASE_NOTES
+
     async def async_install(
         self, version: str | None, backup: bool, **kwargs: Any
     ) -> None:
@@ -148,3 +153,10 @@ async def async_install(
             version if version is not None else self.latest_version
         )
         self.async_write_ha_state()
+
+    def release_notes(self) -> str | None:
+        """Return the release notes."""
+        return (
+            "Long release notes.\n\n**With** "
+            f"markdown support!\n\n***\n\n{self.release_summary}"
+        )

homeassistant/components/update/__init__.py

@@ -9,6 +9,7 @@
 import voluptuous as vol
 
 from homeassistant.backports.enum import StrEnum
+from homeassistant.components import websocket_api
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import STATE_OFF, STATE_ON
 from homeassistant.core import HomeAssistant, ServiceCall
@@ -93,6 +94,7 @@ async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
         {},
         UpdateEntity.async_skip.__name__,
     )
+    websocket_api.async_register_command(hass, websocket_release_notes)
 
     return True
 
@@ -268,6 +270,22 @@ def install(self, version: str | None, backup: bool, **kwargs: Any) -> None:
         """
         raise NotImplementedError()
 
+    async def async_release_notes(self) -> str | None:
+        """Return full release notes.
+
+        This is suitable for a long changelog that does not fit in the release_summary property.
+        The returned string can contain markdown.
+        """
+        return await self.hass.async_add_executor_job(self.release_notes)
+
+    def release_notes(self) -> str | None:
+        """Return full release notes.
+
+        This is suitable for a long changelog that does not fit in the release_summary property.
+        The returned string can contain markdown.
+        """
+        raise NotImplementedError()
+
     @property
     @final
     def state(self) -> str | None:
@@ -343,3 +361,40 @@ async def async_internal_added_to_hass(self) -> None:
         state = await self.async_get_last_state()
         if state is not None and state.attributes.get(ATTR_SKIPPED_VERSION) is not None:
             self.__skipped_version = state.attributes[ATTR_SKIPPED_VERSION]
+
+
+@websocket_api.require_admin
+@websocket_api.websocket_command(
+    {
+        vol.Required("type"): "update/release_notes",
+        vol.Required("entity_id"): cv.entity_id,
+    }
+)
+@websocket_api.async_response
+async def websocket_release_notes(
+    hass: HomeAssistant,
+    connection: websocket_api.connection.ActiveConnection,
+    msg: dict,
+) -> None:
+    """Get the full release notes for a entity."""
+    component = hass.data[DOMAIN]
+    entity: UpdateEntity | None = component.get_entity(msg["entity_id"])
+
+    if entity is None:
+        connection.send_error(
+            msg["id"], websocket_api.const.ERR_NOT_FOUND, "Entity not found"
+        )
+        return
+
+    if not entity.supported_features & UpdateEntityFeature.RELEASE_NOTES:
+        connection.send_error(
+            msg["id"],
+            websocket_api.const.ERR_NOT_SUPPORTED,
+            "Entity does not support release notes",
+        )
+        return
+
+    connection.send_result(
+        msg["id"],
+        await entity.async_release_notes(),
+    )

homeassistant/components/update/const.py

@@ -14,6 +14,7 @@ class UpdateEntityFeature(IntEnum):
     SPECIFIC_VERSION = 2
     PROGRESS = 4
     BACKUP = 8
+    RELEASE_NOTES = 16
 
 
 SERVICE_INSTALL: Final = "install"

tests/components/update/test_init.py

@@ -1,6 +1,8 @@
 """The tests for the Update component."""
+from collections.abc import Awaitable, Callable
 from unittest.mock import MagicMock, patch
 
+from aiohttp import ClientWebSocketResponse
 import pytest
 
 from homeassistant.components.update import (
@@ -587,3 +589,83 @@ async def test_restore_state(
     assert state.attributes[ATTR_CURRENT_VERSION] == "1.0.0"
     assert state.attributes[ATTR_LATEST_VERSION] == "1.0.1"
     assert state.attributes[ATTR_SKIPPED_VERSION] == "1.0.1"
+
+
+async def test_release_notes(
+    hass: HomeAssistant,
+    enable_custom_integrations: None,
+    hass_ws_client: Callable[[HomeAssistant], Awaitable[ClientWebSocketResponse]],
+) -> None:
+    """Test getting the release notes over the websocket connection."""
+    platform = getattr(hass.components, f"test.{DOMAIN}")
+    platform.init()
+
+    assert await async_setup_component(hass, DOMAIN, {DOMAIN: {CONF_PLATFORM: "test"}})
+    await hass.async_block_till_done()
+
+    client = await hass_ws_client(hass)
+    await hass.async_block_till_done()
+
+    await client.send_json(
+        {
+            "id": 1,
+            "type": "update/release_notes",
+            "entity_id": "update.update_with_release_notes",
+        }
+    )
+    result = await client.receive_json()
+    assert result["result"] == "Release notes"
+
+
+async def test_release_notes_entity_not_found(
+    hass: HomeAssistant,
+    enable_custom_integrations: None,
+    hass_ws_client: Callable[[HomeAssistant], Awaitable[ClientWebSocketResponse]],
+) -> None:
+    """Test getting the release notes for not found entity."""
+    platform = getattr(hass.components, f"test.{DOMAIN}")
+    platform.init()
+
+    assert await async_setup_component(hass, DOMAIN, {DOMAIN: {CONF_PLATFORM: "test"}})
+    await hass.async_block_till_done()
+
+    client = await hass_ws_client(hass)
+    await hass.async_block_till_done()
+
+    await client.send_json(
+        {
+            "id": 1,
+            "type": "update/release_notes",
+            "entity_id": "update.entity_not_found",
+        }
+    )
+    result = await client.receive_json()
+    assert result["error"]["code"] == "not_found"
+    assert result["error"]["message"] == "Entity not found"
+
+
+async def test_release_notes_entity_does_not_support_release_notes(
+    hass: HomeAssistant,
+    enable_custom_integrations: None,
+    hass_ws_client: Callable[[HomeAssistant], Awaitable[ClientWebSocketResponse]],
+) -> None:
+    """Test getting the release notes for entity that does not support release notes."""
+    platform = getattr(hass.components, f"test.{DOMAIN}")
+    platform.init()
+
+    assert await async_setup_component(hass, DOMAIN, {DOMAIN: {CONF_PLATFORM: "test"}})
+    await hass.async_block_till_done()
+
+    client = await hass_ws_client(hass)
+    await hass.async_block_till_done()
+
+    await client.send_json(
+        {
+            "id": 1,
+            "type": "update/release_notes",
+            "entity_id": "update.update_available",
+        }
+    )
+    result = await client.receive_json()
+    assert result["error"]["code"] == "not_supported"
+    assert result["error"]["message"] == "Entity does not support release notes"

tests/testing_config/custom_components/test/update.py

@@ -62,6 +62,10 @@ def install(self, version: str | None, backup: bool, **kwargs: Any) -> None:
             self._values["current_version"] = self.latest_version
             _LOGGER.info("Installed latest update")
 
+    def release_notes(self) -> str | None:
+        """Return the release notes of the latest version."""
+        return "Release notes"
+
 
 def init(empty=False):
     """Initialize the platform with entities."""
@@ -124,6 +128,13 @@ def init(empty=False):
                 current_version="1.0.0",
                 latest_version="1.0.1",
             ),
+            MockUpdateEntity(
+                name="Update with release notes",
+                unique_id="with_release_notes",
+                current_version="1.0.0",
+                latest_version="1.0.1",
+                supported_features=UpdateEntityFeature.RELEASE_NOTES,
+            ),
         ]
     )