Migrate sun to use single_config_entry (#113370)

homeassistant/components/sun/__init__.py

@@ -84,13 +84,17 @@ CONFIG_SCHEMA = cv.empty_config_schema(DOMAIN)
 
 async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
     """Track the state of the sun."""
-    hass.async_create_task(
-        hass.config_entries.flow.async_init(
-            DOMAIN,
-            context={"source": SOURCE_IMPORT},
-            data=config,
+    if not hass.config_entries.async_entries(DOMAIN):
+        # We avoid creating an import flow if its already
+        # setup since it will have to import the config_flow
+        # module.
+        hass.async_create_task(
+            hass.config_entries.flow.async_init(
+                DOMAIN,
+                context={"source": SOURCE_IMPORT},
+                data=config,
+            )
         )
-    )
     return True
 
 

homeassistant/components/sun/config_flow.py

@@ -18,9 +18,6 @@ class SunConfigFlow(ConfigFlow, domain=DOMAIN):
         self, user_input: dict[str, Any] | None = None
     ) -> ConfigFlowResult:
         """Handle a flow initialized by the user."""
-        if self._async_current_entries():
-            return self.async_abort(reason="single_instance_allowed")
-
         if user_input is not None:
             return self.async_create_entry(title=DEFAULT_NAME, data={})
 

homeassistant/components/sun/manifest.json

@@ -5,5 +5,6 @@
   "config_flow": true,
   "documentation": "https://www.home-assistant.io/integrations/sun",
   "iot_class": "calculated",
-  "quality_scale": "internal"
+  "quality_scale": "internal",
+  "single_config_entry": true
 }

homeassistant/components/sun/strings.json

@@ -5,9 +5,6 @@
       "user": {
         "description": "[%key:common::config_flow::description::confirm_setup%]"
       }
-    },
-    "abort": {
-      "single_instance_allowed": "[%key:common::config_flow::abort::single_instance_allowed%]"
     }
   },
   "entity_component": {

homeassistant/generated/integrations.json

@@ -5743,7 +5743,8 @@
     "sun": {
       "integration_type": "hub",
       "config_flow": true,
-      "iot_class": "calculated"
+      "iot_class": "calculated",
+      "single_config_entry": true
     },
     "sunweg": {
       "name": "Sun WEG",