Use in-memory sql for artifacts

hypha/artifact.py

@@ -69,7 +69,11 @@ def __init__(
     ):
         """Set up controller with SQLAlchemy database and S3 for file storage."""
         if database_uri is None:
-            raise ValueError("Database URI is required.")
+            # create an in-memory SQLite database for testing
+            database_uri = "sqlite+aiosqlite:///:memory:"
+            logger.warning(
+                "Using in-memory SQLite database for artifact manager, all data will be lost on restart!!!"
+            )
         self.engine = create_async_engine(database_uri, echo=False)
         self.SessionLocal = async_sessionmaker(
             self.engine, expire_on_commit=False, class_=AsyncSession

hypha/server.py

@@ -101,12 +101,12 @@ def start_builtin_services(
             executable_path=args.executable_path,
         )
 
-        artifact_manager = ArtifactController(
-            store,
-            s3_controller=s3_controller,
-            workspace_bucket=args.workspace_bucket,
-            database_uri=args.database_uri,
-        )
+    artifact_manager = ArtifactController(
+        store,
+        s3_controller=s3_controller,
+        workspace_bucket=args.workspace_bucket,
+        database_uri=args.database_uri,
+    )
 
     if args.enable_server_apps:
         assert args.enable_s3, "Server apps require S3 to be enabled"
@@ -378,7 +378,7 @@ def get_argparser(add_help=True):
         "--database-uri",
         type=str,
         default=None,
-        help="set database URI for the server",
+        help="set database URI for the artifact manager",
     )
     parser.add_argument(
         "--workspace-bucket",