Cleanup existing timeline entries (blakeblackshear#8495)

* Cleanup existing timeline entries for beta users

* Formatting

frigate/app.py

@@ -279,6 +279,17 @@ def vacuum_db(db: SqliteExtDatabase) -> None:
  except PermissionError:
  logger.error("Unable to write to /config to save DB state")
 
+ def cleanup_timeline_db(db: SqliteExtDatabase) -> None:
+ db.execute_sql(
+ "DELETE FROM timeline WHERE source_id NOT IN (SELECT id FROM event);"
+ )
+
+ try:
+ with open(f"{CONFIG_DIR}/.timeline", "w") as f:
+ f.write(str(datetime.datetime.now().timestamp()))
+ except PermissionError:
+ logger.error("Unable to write to /config to save DB state")
+
  # Migrate DB location
  old_db_path = DEFAULT_DB_PATH
  if not os.path.isfile(self.config.database.path) and os.path.isfile(
@@ -294,6 +305,11 @@ def vacuum_db(db: SqliteExtDatabase) -> None:
  router = Router(migrate_db)
  router.run()
 
+ # this is a temporary check to clean up user DB from beta
+ # will be removed before final release
+ if not os.path.exists(f"{CONFIG_DIR}/.timeline"):
+ cleanup_timeline_db(migrate_db)
+
  # check if vacuum needs to be run
  if os.path.exists(f"{CONFIG_DIR}/.vacuum"):
  with open(f"{CONFIG_DIR}/.vacuum") as f: