Warn if not registered properly

esphome/components/binary_sensor/__init__.py

@@ -254,6 +254,7 @@ def setup_binary_sensor_core_(var, config):
         trigger = cg.new_Pvariable(conf[CONF_TRIGGER_ID], var, timings)
         if CONF_INVALID_COOLDOWN in conf:
             cg.add(trigger.set_invalid_cooldown(conf[CONF_INVALID_COOLDOWN]))
+        yield cg.register_component(trigger, conf)
         yield automation.build_automation(trigger, [], conf)
 
     for conf in config.get(CONF_ON_STATE, []):

esphome/components/fan/__init__.py

@@ -63,6 +63,7 @@ def register_fan(var, config):
     if not CORE.has_id(config[CONF_ID]):
         var = cg.Pvariable(config[CONF_ID], var)
     cg.add(cg.App.register_fan(var))
+    yield cg.register_component(var, config)
     yield setup_fan_core_(var, config)
 
 

esphome/components/template/cover/__init__.py

@@ -7,7 +7,7 @@ from esphome.const import CONF_ASSUMED_STATE, CONF_CLOSE_ACTION, CONF_CURRENT_OP
     CONF_STATE, CONF_STOP_ACTION
 from .. import template_ns
 
-TemplateCover = template_ns.class_('TemplateCover', cover.Cover)
+TemplateCover = template_ns.class_('TemplateCover', cover.Cover, cg.Component)
 
 TemplateCoverRestoreMode = template_ns.enum('TemplateCoverRestoreMode')
 RESTORE_MODES = {

esphome/components/time/__init__.py

@@ -285,6 +285,7 @@ def setup_time_core_(time_var, config):
         days_of_week = conf.get(CONF_DAYS_OF_WEEK, [x for x in range(1, 8)])
         cg.add(trigger.add_days_of_week(days_of_week))
 
+        yield cg.register_component(trigger, conf)
         yield automation.build_automation(trigger, [], conf)
 
 

esphome/components/uart/switch/__init__.py

@@ -8,7 +8,7 @@ from .. import uart_ns
 
 DEPENDENCIES = ['uart']
 
-UARTSwitch = uart_ns.class_('UARTSwitch', switch.Switch, uart.UARTDevice)
+UARTSwitch = uart_ns.class_('UARTSwitch', switch.Switch, uart.UARTDevice, cg.Component)
 
 
 def validate_data(value):

esphome/config.py

@@ -322,6 +322,7 @@ def iter_ids(config, path=None):
 
 def do_id_pass(result):  # type: (Config) -> None
     from esphome.cpp_generator import MockObjClass
+    from esphome.cpp_types import Component
 
     declare_ids = []  # type: List[Tuple[core.ID, ConfigPath]]
     searching_ids = []  # type: List[Tuple[core.ID, ConfigPath]]
@@ -340,6 +341,8 @@ def do_id_pass(result):  # type: (Config) -> None
     # Resolve default ids after manual IDs
     for id, _ in declare_ids:
         id.resolve([v[0].id for v in declare_ids])
+        if isinstance(id.type, MockObjClass) and id.type.inherits_from(Component):
+            CORE.component_ids.add(id.id)
 
     # Check searched IDs
     for id, path in searching_ids:

esphome/core.py

@@ -505,6 +505,8 @@ class EsphomeCore(object):
         self.active_coroutines = {}  # type: Dict[int, Any]
         # A set of strings of names of loaded integrations, used to find namespace ID conflicts
         self.loaded_integrations = set()
+        # A set of component IDs to track what Component subclasses are declared
+        self.component_ids = set()
 
     def reset(self):
         self.dashboard = False
@@ -525,6 +527,7 @@ class EsphomeCore(object):
         self.defines = set()
         self.active_coroutines = {}
         self.loaded_integrations = set()
+        self.component_ids = set()
 
     @property
     def address(self):  # type: () -> str
@@ -626,6 +629,12 @@ class EsphomeCore(object):
             _LOGGER.warning(u"Please file a bug report with your configuration.")
         if self.active_coroutines:
             raise EsphomeError()
+        if self.component_ids:
+            comps = u', '.join(u"'{}'".format(x) for x in self.component_ids)
+            _LOGGER.warning(u"Components %s were never registered. Please create a bug report",
+                            comps)
+            _LOGGER.warning(u"with your configuration.")
+            raise EsphomeError()
         self.active_coroutines.clear()
 
     def add(self, expression):

esphome/core_config.py

@@ -18,9 +18,11 @@ from esphome.pins import ESP8266_FLASH_SIZES, ESP8266_LD_SCRIPTS
 _LOGGER = logging.getLogger(__name__)
 
 BUILD_FLASH_MODES = ['qio', 'qout', 'dio', 'dout']
-StartupTrigger = cg.esphome_ns.StartupTrigger
-ShutdownTrigger = cg.esphome_ns.ShutdownTrigger
-LoopTrigger = cg.esphome_ns.LoopTrigger
+StartupTrigger = cg.esphome_ns.class_('StartupTrigger', cg.Component, automation.Trigger.template())
+ShutdownTrigger = cg.esphome_ns.class_('ShutdownTrigger', cg.Component,
+                                       automation.Trigger.template())
+LoopTrigger = cg.esphome_ns.class_('LoopTrigger', cg.Component,
+                                   automation.Trigger.template())
 
 VERSION_REGEX = re.compile(r'^[0-9]+\.[0-9]+\.[0-9]+(?:[ab]\d+)?$')
 

esphome/cpp_helpers.py

@@ -1,8 +1,9 @@
 from esphome.const import CONF_INVERTED, CONF_MODE, CONF_NUMBER, CONF_SETUP_PRIORITY, \
     CONF_UPDATE_INTERVAL, CONF_TYPE_ID
-from esphome.core import coroutine, ID
+from esphome.core import coroutine, ID, CORE
 from esphome.cpp_generator import RawExpression, add, get_variable
 from esphome.cpp_types import App, GPIOPin
+from esphome.py_compat import text_type
 
 
 @coroutine
@@ -34,6 +35,12 @@ def register_component(var, config):
     :param var: The variable representing the component.
     :param config: The configuration for the component.
     """
+    id_ = text_type(var.base)
+    if id_ not in CORE.component_ids:
+        raise ValueError(u"Component ID {} was not declared to inherit from Component, "
+                         u"or was registered twice. Please create a bug report with your "
+                         u"configuration.".format(id_))
+    CORE.component_ids.remove(id_)
     if CONF_SETUP_PRIORITY in config:
         add(var.set_setup_priority(config[CONF_SETUP_PRIORITY]))
     if CONF_UPDATE_INTERVAL in config: