Add copy integration (#3241)

esphome/components/copy/sensor/__init__.py

@@ -0,0 +1,45 @@
+import esphome.codegen as cg
+import esphome.config_validation as cv
+from esphome.components import sensor
+from esphome.const import (
+    CONF_DEVICE_CLASS,
+    CONF_ENTITY_CATEGORY,
+    CONF_ICON,
+    CONF_SOURCE_ID,
+    CONF_STATE_CLASS,
+    CONF_UNIT_OF_MEASUREMENT,
+    CONF_ACCURACY_DECIMALS,
+)
+from esphome.core.entity_helpers import inherit_property_from
+
+from .. import copy_ns
+
+CopySensor = copy_ns.class_("CopySensor", sensor.Sensor, cg.Component)
+
+
+CONFIG_SCHEMA = (
+    sensor.sensor_schema(CopySensor)
+    .extend(
+        {
+            cv.Required(CONF_SOURCE_ID): cv.use_id(sensor.Sensor),
+        }
+    )
+    .extend(cv.COMPONENT_SCHEMA)
+)
+
+FINAL_VALIDATE_SCHEMA = cv.All(
+    inherit_property_from(CONF_UNIT_OF_MEASUREMENT, CONF_SOURCE_ID),
+    inherit_property_from(CONF_ICON, CONF_SOURCE_ID),
+    inherit_property_from(CONF_ACCURACY_DECIMALS, CONF_SOURCE_ID),
+    inherit_property_from(CONF_DEVICE_CLASS, CONF_SOURCE_ID),
+    inherit_property_from(CONF_STATE_CLASS, CONF_SOURCE_ID),
+    inherit_property_from(CONF_ENTITY_CATEGORY, CONF_SOURCE_ID),
+)
+
+
+async def to_code(config):
+    var = await sensor.new_sensor(config)
+    await cg.register_component(var, config)
+
+    source = await cg.get_variable(config[CONF_SOURCE_ID])
+    cg.add(var.set_source(source))