chore: raise from specific exceptions

api/libretime_api/legacy/migrations/_migrations.py

@@ -1,6 +1,6 @@
 from typing import Callable, Optional
 
-from django.db import connection
+from django.db import DataError, connection
 
 from ._version import parse_version
 
@@ -53,7 +53,7 @@ def legacy_migration_factory(
     def inner(_apps, _schema_editor):
         current = get_schema_version()
         if current is None:
-            raise Exception("current schema version was not found!")
+            raise DataError("current schema version was not found!")
 
         current_version = parse_version(current)
         if current_version >= target_version and not reverse:

api/libretime_api/legacy/migrations/_version.py

@@ -21,7 +21,7 @@ VERSION_RE = re.compile(
 def parse_version(version: str):
     match = VERSION_RE.search(version)
     if not match:
-        raise Exception(f"invalid version {version}")
+        raise ValueError(f"invalid version {version}")
 
     release = list(map(int, match.group("release").split(".")))
     major = release.pop(0) if release else 0