Move manual configuration of MQTT button to the integration key (#72167)

Add button

Co-authored-by: Erik Montnemery <erik@montnemery.com>

homeassistant/components/mqtt/__init__.py

@@ -191,6 +191,7 @@ MQTT_WILL_BIRTH_SCHEMA = vol.Schema(
 PLATFORM_CONFIG_SCHEMA_BASE = vol.Schema(
     {
         vol.Optional(Platform.ALARM_CONTROL_PANEL.value): cv.ensure_list,
+        vol.Optional(Platform.BUTTON.value): cv.ensure_list,
         vol.Optional(Platform.FAN.value): cv.ensure_list,
         vol.Optional(Platform.LIGHT.value): cv.ensure_list,
     }

homeassistant/components/mqtt/button.py

@@ -1,6 +1,7 @@
 """Support for MQTT buttons."""
 from __future__ import annotations
 
+import asyncio
 import functools
 
 import voluptuous as vol
@@ -26,15 +27,17 @@ from .const import (
 from .mixins import (
     MQTT_ENTITY_COMMON_SCHEMA,
     MqttEntity,
+    async_get_platform_config_from_yaml,
     async_setup_entry_helper,
     async_setup_platform_helper,
+    warn_for_legacy_schema,
 )
 
 CONF_PAYLOAD_PRESS = "payload_press"
 DEFAULT_NAME = "MQTT Button"
 DEFAULT_PAYLOAD_PRESS = "PRESS"
 
-PLATFORM_SCHEMA = mqtt.MQTT_BASE_PLATFORM_SCHEMA.extend(
+PLATFORM_SCHEMA_MODERN = mqtt.MQTT_BASE_SCHEMA.extend(
     {
         vol.Optional(CONF_COMMAND_TEMPLATE): cv.template,
         vol.Required(CONF_COMMAND_TOPIC): mqtt.valid_publish_topic,
@@ -45,7 +48,14 @@ PLATFORM_SCHEMA = mqtt.MQTT_BASE_PLATFORM_SCHEMA.extend(
     }
 ).extend(MQTT_ENTITY_COMMON_SCHEMA.schema)
 
-DISCOVERY_SCHEMA = PLATFORM_SCHEMA.extend({}, extra=vol.REMOVE_EXTRA)
+# Configuring MQTT Buttons under the button platform key is deprecated in HA Core 2022.6
+PLATFORM_SCHEMA = vol.All(
+    cv.PLATFORM_SCHEMA.extend(PLATFORM_SCHEMA_MODERN.schema),
+    warn_for_legacy_schema(button.DOMAIN),
+)
+
+
+DISCOVERY_SCHEMA = PLATFORM_SCHEMA_MODERN.extend({}, extra=vol.REMOVE_EXTRA)
 
 
 async def async_setup_platform(
@@ -54,7 +64,8 @@ async def async_setup_platform(
     async_add_entities: AddEntitiesCallback,
     discovery_info: DiscoveryInfoType | None = None,
 ) -> None:
-    """Set up MQTT button through configuration.yaml."""
+    """Set up MQTT button configured under the fan platform key (deprecated)."""
+    # Deprecated in HA Core 2022.6
     await async_setup_platform_helper(
         hass, button.DOMAIN, config, async_add_entities, _async_setup_entity
     )
@@ -65,7 +76,17 @@ async def async_setup_entry(
     config_entry: ConfigEntry,
     async_add_entities: AddEntitiesCallback,
 ) -> None:
-    """Set up MQTT button dynamically through MQTT discovery."""
+    """Set up MQTT button through configuration.yaml and dynamically through MQTT discovery."""
+    # load and initialize platform config from configuration.yaml
+    await asyncio.gather(
+        *(
+            _async_setup_entity(hass, async_add_entities, config, config_entry)
+            for config in await async_get_platform_config_from_yaml(
+                hass, button.DOMAIN, PLATFORM_SCHEMA_MODERN
+            )
+        )
+    )
+    # setup for discovery
     setup = functools.partial(
         _async_setup_entity, hass, async_add_entities, config_entry=config_entry
     )

tests/components/mqtt/test_button.py

@@ -30,6 +30,7 @@ from .test_common import (
     help_test_setting_attribute_via_mqtt_json_message,
     help_test_setting_attribute_with_template,
     help_test_setting_blocked_attribute_via_mqtt_json_message,
+    help_test_setup_manual_entity_from_yaml,
     help_test_unique_id,
     help_test_update_with_json_attrs_bad_JSON,
     help_test_update_with_json_attrs_not_dict,
@@ -413,3 +414,15 @@ async def test_reloadable_late(hass, mqtt_client_mock, caplog, tmp_path):
     domain = button.DOMAIN
     config = DEFAULT_CONFIG[domain]
     await help_test_reloadable_late(hass, caplog, tmp_path, domain, config)
+
+
+async def test_setup_manual_entity_from_yaml(hass, caplog, tmp_path):
+    """Test setup manual configured MQTT entity."""
+    platform = button.DOMAIN
+    config = copy.deepcopy(DEFAULT_CONFIG[platform])
+    config["name"] = "test"
+    del config["platform"]
+    await help_test_setup_manual_entity_from_yaml(
+        hass, caplog, tmp_path, platform, config
+    )
+    assert hass.states.get(f"{platform}.test") is not None