feature(backups):add a function to set provider from env

selfprivacy_api/backup/__init__.py

@@ -2,6 +2,7 @@
 This module contains the controller class for backups.
 """
 from datetime import datetime, timedelta
+import os
 from os import statvfs
 from typing import List, Optional
 
@@ -43,6 +44,13 @@ DEFAULT_JSON_PROVIDER = {
     "bucket": "",
 }
 
+BACKUP_PROVIDER_ENVS = {
+    "kind": "BACKUP_KIND",
+    "login": "BACKUP_LOGIN",
+    "key": "BACKUP_KEY",
+    "location": "BACKUP_LOCATION",
+}
+
 
 class NotDeadError(AssertionError):
     """
@@ -132,6 +140,24 @@ class Backups:
         Storage.store_provider(none_provider)
         return none_provider
 
+    @staticmethod
+    def set_provider_from_envs():
+        for env in BACKUP_PROVIDER_ENVS.values():
+            if env not in os.environ.keys():
+                raise ValueError(
+                    f"Cannot set backup provider from envs, there is no {env} set"
+                )
+
+        kind_str = os.environ[BACKUP_PROVIDER_ENVS["kind"]]
+        kind_enum = BackupProviderEnum[kind_str]
+        provider = Backups._construct_provider(
+            kind=kind_enum,
+            login=os.environ[BACKUP_PROVIDER_ENVS["login"]],
+            key=os.environ[BACKUP_PROVIDER_ENVS["key"]],
+            location=os.environ[BACKUP_PROVIDER_ENVS["location"]],
+        )
+        Storage.store_provider(provider)
+
     @staticmethod
     def _construct_provider(
         kind: BackupProviderEnum,

tests/test_graphql/test_backup.py

@@ -1,4 +1,5 @@
 import pytest
+import os
 import os.path as path
 from os import makedirs
 from os import remove
@@ -18,10 +19,11 @@ from selfprivacy_api.jobs import Jobs, JobStatus
 
 from selfprivacy_api.models.backup.snapshot import Snapshot
 
-from selfprivacy_api.backup import Backups
+from selfprivacy_api.backup import Backups, BACKUP_PROVIDER_ENVS
 import selfprivacy_api.backup.providers as providers
 from selfprivacy_api.backup.providers import AbstractBackupProvider
 from selfprivacy_api.backup.providers.backblaze import Backblaze
+from selfprivacy_api.backup.providers.none import NoBackups
 from selfprivacy_api.backup.util import sync
 from selfprivacy_api.backup.backuppers.restic_backupper import ResticBackupper
 from selfprivacy_api.backup.jobs import add_backup_job, add_restore_job
@@ -129,6 +131,40 @@ def test_config_load(generic_userdata):
     assert provider.backupper.key == "KEY"
 
 
+def test_reset_sets_to_none1():
+    Backups.reset()
+    provider = Backups.provider()
+    assert provider is not None
+    assert isinstance(provider, NoBackups)
+
+
+def test_reset_sets_to_none2(backups):
+    # now with something set up first^^^
+    Backups.reset()
+    provider = Backups.provider()
+    assert provider is not None
+    assert isinstance(provider, NoBackups)
+
+
+def test_setting_from_envs(tmpdir):
+    Backups.reset()
+    os.environ[BACKUP_PROVIDER_ENVS["kind"]] = "BACKBLAZE"
+    os.environ[BACKUP_PROVIDER_ENVS["login"]] = "ID"
+    os.environ[BACKUP_PROVIDER_ENVS["key"]] = "KEY"
+    os.environ[BACKUP_PROVIDER_ENVS["location"]] = "selfprivacy"
+    Backups.set_provider_from_envs()
+    provider = Backups.provider()
+
+    assert provider is not None
+    assert isinstance(provider, Backblaze)
+    assert provider.login == "ID"
+    assert provider.key == "KEY"
+    assert provider.location == "selfprivacy"
+
+    assert provider.backupper.account == "ID"
+    assert provider.backupper.key == "KEY"
+
+
 def test_json_reset(generic_userdata):
     Backups.reset(reset_json=False)
     provider = Backups.provider()