Don't allow debug component if you don't have at least debug logging level (#4076)

esphome/components/debug/__init__.py

@@ -1,11 +1,15 @@
-import esphome.config_validation as cv
 import esphome.codegen as cg
+import esphome.config_validation as cv
+import esphome.final_validate as fv
+from esphome.components import logger
 from esphome.const import (
-    CONF_ID,
-    CONF_DEVICE,
-    CONF_FREE,
-    CONF_FRAGMENTATION,
     CONF_BLOCK,
+    CONF_DEVICE,
+    CONF_FRAGMENTATION,
+    CONF_FREE,
+    CONF_ID,
+    CONF_LEVEL,
+    CONF_LOGGER,
     CONF_LOOP_TIME,
 )
 
@@ -39,6 +43,18 @@ CONFIG_SCHEMA = cv.Schema(
 ).extend(cv.polling_component_schema("60s"))
 
 
+def _final_validate(_):
+    logger_conf = fv.full_config.get()[CONF_LOGGER]
+    severity = logger.LOG_LEVEL_SEVERITY.index(logger_conf[CONF_LEVEL])
+    if severity < logger.LOG_LEVEL_SEVERITY.index("DEBUG"):
+        raise cv.Invalid(
+            "The debug component requires the logger to be at least at DEBUG level"
+        )
+
+
+FINAL_VALIDATE_SCHEMA = _final_validate
+
+
 async def to_code(config):
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)

esphome/components/debug/debug_component.cpp

@@ -41,12 +41,6 @@ void DebugComponent::dump_config() {
   std::string reset_reason;
   device_info.reserve(256);
 
-#ifndef ESPHOME_LOG_HAS_DEBUG
-  ESP_LOGE(TAG, "Debug Component requires debug log level!");
-  this->status_set_error();
-  return;
-#endif
-
   ESP_LOGCONFIG(TAG, "Debug component:");
 #ifdef USE_TEXT_SENSOR
   LOG_TEXT_SENSOR("  ", "Device info", this->device_info_);