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.venv/lib/python3.12/site-packages/django/tasks/signals.py

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+import logging
+import sys
+
+from asgiref.local import Local
+
+from django.core.signals import setting_changed
+from django.dispatch import Signal, receiver
+
+from .base import TaskResultStatus
+
+logger = logging.getLogger("django.tasks")
+
+task_enqueued = Signal()
+task_finished = Signal()
+task_started = Signal()
+
+
+@receiver(setting_changed)
+def clear_tasks_handlers(*, setting, **kwargs):
+    """Reset the connection handler whenever the settings change."""
+    if setting == "TASKS":
+        from . import task_backends
+
+        task_backends._settings = task_backends.settings = (
+            task_backends.configure_settings(None)
+        )
+        task_backends._connections = Local()
+
+
+@receiver(task_enqueued)
+def log_task_enqueued(sender, task_result, **kwargs):
+    logger.debug(
+        "Task id=%s path=%s enqueued backend=%s",
+        task_result.id,
+        task_result.task.module_path,
+        task_result.backend,
+    )
+
+
+@receiver(task_started)
+def log_task_started(sender, task_result, **kwargs):
+    logger.info(
+        "Task id=%s path=%s state=%s",
+        task_result.id,
+        task_result.task.module_path,
+        task_result.status,
+    )
+
+
+@receiver(task_finished)
+def log_task_finished(sender, task_result, **kwargs):
+    logger.log(
+        (
+            logging.ERROR
+            if task_result.status == TaskResultStatus.FAILED
+            else logging.INFO
+        ),
+        "Task id=%s path=%s state=%s",
+        task_result.id,
+        task_result.task.module_path,
+        task_result.status,
+        # Signal is sent inside exception handlers, so exc_info() is available.
+        exc_info=sys.exc_info(),
+    )