Add mount volume migration

selfprivacy_api/migrations/__init__.py

@@ -11,11 +11,10 @@ Adding DISABLE_ALL to that array disables the migrations module entirely.
 from selfprivacy_api.utils import ReadUserData
 from selfprivacy_api.migrations.fix_nixos_config_branch import FixNixosConfigBranch
 from selfprivacy_api.migrations.create_tokens_json import CreateTokensJson
-from selfprivacy_api.migrations.migrate_to_selfprivacy_channel import (
-    MigrateToSelfprivacyChannel,
-)
+from selfprivacy_api.migrations.migrate_to_selfprivacy_channel import MigrateToSelfprivacyChannel
+from selfprivacy_api.migrations.mount_volume import MountVolume
 
-migrations = [FixNixosConfigBranch(), CreateTokensJson(), MigrateToSelfprivacyChannel()]
+migrations = [FixNixosConfigBranch(), CreateTokensJson(), MigrateToSelfprivacyChannel(), MountVolume()]
 
 
 def run_migrations():

selfprivacy_api/migrations/migrate_to_selfprivacy_channel.py

@@ -15,20 +15,16 @@ class MigrateToSelfprivacyChannel(Migration):
 
     def is_migration_needed(self):
         try:
-            print("Checking if migration is needed")
             output = subprocess.check_output(
                 ["nix-channel", "--list"], start_new_session=True
             )
             output = output.decode("utf-8")
-            print(output)
             first_line = output.split("\n", maxsplit=1)[0]
-            print(first_line)
             return first_line.startswith("nixos") and (
                 first_line.endswith("nixos-21.11") or first_line.endswith("nixos-21.05")
             )
         except subprocess.CalledProcessError:
             return False
-        return False
 
     def migrate(self):
         # Change the channel and update them.

selfprivacy_api/migrations/mount_volume.py

@@ -0,0 +1,48 @@
+import os
+import subprocess
+
+from selfprivacy_api.migrations.migration import Migration
+from selfprivacy_api.utils import ReadUserData, WriteUserData
+from selfprivacy_api.utils.block_devices import BlockDevices
+
+class MountVolume(Migration):
+    """Mount volume."""
+
+    def get_migration_name(self):
+        return "mount_volume"
+
+    def get_migration_description(self):
+        return "Mount volume if it is not mounted."
+
+    def is_migration_needed(self):
+        try:
+            with ReadUserData() as userdata:
+                return "volumes" not in userdata
+        except Exception as e:
+            print(e)
+            return False
+
+    def migrate(self):
+        # Get info about existing volumes
+        # Write info about volumes to userdata.json
+        try:
+            volumes = BlockDevices().get_block_devices()
+            # If there is an unmounted volume sdb,
+            # Write it to userdata.json
+            is_there_a_volume = False
+            for volume in volumes:
+                if volume.name == "sdb":
+                    is_there_a_volume = True
+                    break
+            with WriteUserData() as userdata:
+                userdata["volumes"] = []
+                if is_there_a_volume:
+                    userdata["volumes"].append({
+                        "device": "/etc/sdb",
+                        "mountPoint": "/volumes/sdb",
+                        "fsType": "ext4",
+                    })
+            print("Done")
+        except Exception as e:
+            print(e)
+            print("Error mounting volume")