tonal build

packages/tonal/package.json

@@ -3,10 +3,15 @@
   "version": "0.5.0",
   "description": "Tonal functions for strudel",
   "main": "index.mjs",
-  "type": "module",
+  "publishConfig": {
+    "main": "dist/index.js",
+    "module": "dist/index.mjs"
+  },
   "scripts": {
+    "build": "vite build",
     "test": "vitest run"
   },
+  "type": "module",
   "repository": {
     "type": "git",
     "url": "git+https://github.com/tidalcycles/strudel.git"
@@ -31,6 +36,7 @@
     "webmidi": "^3.0.21"
   },
   "devDependencies": {
+    "vite": "^3.2.2",
     "vitest": "^0.25.7"
   }
 }

packages/tonal/vite.config.js

@@ -0,0 +1,19 @@
+import { defineConfig } from 'vite';
+import { dependencies } from './package.json';
+import { resolve } from 'path';
+
+// https://vitejs.dev/config/
+export default defineConfig({
+  plugins: [],
+  build: {
+    lib: {
+      entry: resolve(__dirname, 'index.mjs'),
+      formats: ['es', 'cjs'],
+      fileName: (ext) => ({ es: 'index.mjs', cjs: 'index.js' }[ext]),
+    },
+    rollupOptions: {
+      external: [...Object.keys(dependencies)],
+    },
+    target: 'esnext',
+  },
+});