fixed exit on migration exception

mobilizon_reshare/storage/db.py

@@ -1,5 +1,5 @@
 import logging
-import asyncio
+import sys
 from pathlib import Path
 from tortoise import Tortoise
 from aerich import Command
@@ -23,47 +23,26 @@ def get_db_url():
     return db_url
 
 
-TORTOISE_ORM = {
-    "connections": {"default": get_db_url()},
-    "apps": {
-        "models": {
-            "models": ["mobilizon_reshare.models.event",
-                       "mobilizon_reshare.models.notification",
-                       "mobilizon_reshare.models.publication",
-                       "mobilizon_reshare.models.publisher", "aerich.models"],
-            "default_connection": "default",
+def get_tortoise_orm():
+    return {
+        "connections": {"default": get_db_url()},
+        "apps": {
+            "models": {
+                "models": [
+                    "mobilizon_reshare.models.event",
+                    "mobilizon_reshare.models.notification",
+                    "mobilizon_reshare.models.publication",
+                    "mobilizon_reshare.models.publisher",
+                    "aerich.models",
+                ],
+                "default_connection": "default",
+            },
         },
-    },
-}
-
-
-async def shutdown(loop):
-    """shutdown method"""
-    logging.critical("SHUTDOWN CALLED")
-    logging.info("closing database connections")
-    tasks = [t for t in asyncio.all_tasks() if t is asyncio.current_task()]
-    _ = [task.cancel() for task in tasks]
-    logging.info("Cancelling %i tasks", len(tasks))
-    await asyncio.gather(*tasks, return_exceptions=True)
-    logging.info("flushing metrics")
-    loop.stop()
-
-
-async def handle_exception(loop, context):
-    """exception handler"""
-    logging.critical("HANDLER CALLED")
-    msg = context.get("exception", context["message"])
-    logging.critical("Caught exception: %s", msg)
-    logging.info("shutting down")
-    await shutdown(loop)
-    await tear_down()
+    }
 
 
 class MoReDB:
     def __init__(self, path: Path):
-        loop = asyncio.get_event_loop()
-        loop.set_exception_handler(handle_exception)
-
         self.path = path
         # TODO: Check if DB is openable/"queriable"
         self.is_init = self.path.exists() and (not self.path.is_dir())
@@ -74,21 +53,20 @@ class MoReDB:
         logging.info("Updating database to latest version")
         try:
 
-            command = Command(tortoise_config=TORTOISE_ORM, app='models',
-                              location='./migrations')
+            command = Command(
+                tortoise_config=get_tortoise_orm(),
+                app="models",
+                location="./migrations",
+            )
             await command.init()
             await command.upgrade()
         except FileNotFoundError:
             logging.critical("aerich configuration not found, fatal error")
-            raise
+            await tear_down()
+            sys.exit(1)
 
     async def setup(self):
-        implement_db_changes = asyncio.create_task(self._implement_db_changes())
-        _, _ = await asyncio.wait({implement_db_changes},
-                                  return_when=asyncio.FIRST_EXCEPTION)
-        if implement_db_changes.exception():
-            logging.critical("exception during aerich init")
-            raise implement_db_changes.exception()
+        await self._implement_db_changes()
         await Tortoise.init(
             db_url=get_db_url(),
             modules={