global setup to build preprocessor first

Author: AndrewRayCode

vite.config.ts

@@ -6,4 +6,7 @@ export default defineConfig({
       ignored: ['**/*.js'],
     },
   },
+  test: {
+    globalSetup: './vitest.global-setup.ts',
+  },
 });

vitest.global-setup.ts

@@ -0,0 +1,7 @@
+import { execSync } from 'child_process';
+
+export const setup = () => {
+  execSync(
+    'npx peggy --cache --format es --allowed-start-rules program,constant_expression -o src/preprocessor/preprocessor-parser.js src/preprocessor/preprocessor-grammar.pegjs'
+  );
+};