feat: support motherduck token (#6948)

Author: vasilev-alex

packages/cubejs-backend-shared/src/env.ts

@@ -1369,6 +1369,16 @@ const variables: Record<string, (...args: any) => any> = {
     ]
   ),
 
+  duckdbMotherDuckToken: ({
+    dataSource
+  }: {
+    dataSource: string,
+  }) => (
+    process.env[
+      keyByDataSource('CUBEJS_DB_DUCKDB_MOTHERDUCK_TOKEN', dataSource)
+    ]
+  ),
+
   /**
    * Presto catalog.
    */

packages/cubejs-duckdb-driver/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@cubejs-backend/duckdb-driver",
-  "description": "Cube.js DuckDB database driver",
+  "description": "Cube DuckDB database driver",
   "author": "Cube Dev, Inc.",
   "version": "0.33.38",
   "repository": {

packages/cubejs-duckdb-driver/src/DuckDBDriver.ts

@@ -25,7 +25,7 @@ export class DuckDBDriver extends BaseDriver implements DriverInterface {
   protected initPromise: Promise<Database> | null = null;
 
   public constructor(
-    config: DuckDBDriverConfiguration,
+    config: DuckDBDriverConfiguration = {},
   ) {
     super();
 
@@ -40,7 +40,9 @@ export class DuckDBDriver extends BaseDriver implements DriverInterface {
   }
 
   protected async initDatabase(): Promise<Database> {
-    const db = new Database(':memory:');
+    const token = getEnv('duckdbMotherDuckToken', this.config);
+    
+    const db = new Database(token ? `md:?motherduck_token=${token}` : ':memory:');
     const conn = db.connect();
 
     if (this.config.enableHttpFs) {