debug component, allow without debug logging (#4685)

esphome/components/debug/__init__.py

@@ -1,15 +1,11 @@
 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_BLOCK,
     CONF_DEVICE,
     CONF_FRAGMENTATION,
     CONF_FREE,
     CONF_ID,
-    CONF_LEVEL,
-    CONF_LOGGER,
     CONF_LOOP_TIME,
 )
 
@@ -43,18 +39,6 @@ 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

@@ -37,6 +37,10 @@ static uint32_t get_free_heap() {
 }
 
 void DebugComponent::dump_config() {
+#ifndef ESPHOME_LOG_HAS_DEBUG
+  return;  // Can't log below if debug logging is disabled
+#endif
+
   std::string device_info;
   std::string reset_reason;
   device_info.reserve(256);