refactor(backups): NoneBackupper class for those cases when we do not know

selfprivacy_api/backup/backuppers/none_backupper.py

@@ -0,0 +1,26 @@
+from typing import List
+
+from selfprivacy_api.models.backup.snapshot import Snapshot
+from selfprivacy_api.backup.backuppers import AbstractBackuper
+
+
+class NoneBackupper(AbstractBackuper):
+    def is_initted(self, repo_name: str) -> bool:
+        return False
+
+    def start_backup(self, folders: List[str], repo_name: str):
+        raise NotImplementedError
+
+    def get_snapshots(self, repo_name) -> List[Snapshot]:
+        """Get all snapshots from the repo"""
+        raise NotImplementedError
+
+    def init(self, repo_name):
+        raise NotImplementedError
+
+    def restore_from_backup(self, repo_name: str, snapshot_id: str, folders: List[str]):
+        """Restore a target folder using a snapshot"""
+        raise NotImplementedError
+
+    def restored_size(self, repo_name, snapshot_id) -> float:
+        raise NotImplementedError

selfprivacy_api/backup/providers/__init__.py

@@ -9,6 +9,7 @@ PROVIDER_MAPPING = {
     BackupProvider.BACKBLAZE: Backblaze,
     BackupProvider.MEMORY: InMemoryBackup,
     BackupProvider.FILE: LocalFileBackup,
+    BackupProvider.NONE: AbstractBackupProvider,
 }
 
 

selfprivacy_api/backup/providers/provider.py

@@ -5,12 +5,13 @@ require different backends
 """
 from abc import ABC
 from selfprivacy_api.backup.backuppers import AbstractBackuper
+from selfprivacy_api.backup.backuppers.none_backupper import NoneBackupper
 
 
 class AbstractBackupProvider(ABC):
     @property
     def backuper(self) -> AbstractBackuper:
-        raise NotImplementedError
+        return NoneBackupper
 
     name = "NONE"