fix: Export cjs/esm modules

Author: vio

.github/workflows/ci.yml

@@ -49,7 +49,7 @@ jobs:
         with:
           name: build-artifacts
           retention-days: 1
-          path: dist*/
+          path: lib*/
 
   test-package-rollup:
     name: "rollup v${{ matrix.rollup }} / node ${{ matrix.node }} / ${{ matrix.os }}"

.gitignore

@@ -1,5 +1,5 @@
 *.log
 .DS_Store
 node_modules
-dist
+lib
 .env

package-lock.json

@@ -11,19 +11,19 @@
     "stats",
     "bundle-stats"
   ],
-  "main": "dist/index.cjs",
-  "module": "dist/index.mjs",
-  "typings": "dist/index.d.ts",
+  "main": "lib/cjs/index.js",
+  "module": "lib/esm/index.js",
+  "typings": "lib/types/index.d.ts",
   "exports": {
     ".": {
-      "types": "./dist/index.d.ts",
-      "import": "./dist/index.mjs",
-      "require": "./dist/index.cjs"
+      "types": "./lib/types/index.d.ts",
+      "import": "./lib/esm/index.js",
+      "require": "./lib/cjs/index.js"
     },
     "./transform": {
-      "types": "./dist/transform.d.ts",
-      "import": "./dist/transform.mjs",
-      "require": "./dist/transform.cjs"
+      "types": "./lib/types/transform.d.ts",
+      "import": "./lib/esm/transform.js",
+      "require": "./lib/cjs/transform.js"
     }
   },
   "author": {
@@ -40,14 +40,15 @@
   },
   "homepage": "https://github.com/relative-ci/rollup-plugin-webpack-stats/blob/master/#readme",
   "files": [
-    "dist"
+    "lib"
   ],
   "engines": {
     "node": ">=18"
   },
   "scripts": {
-    "prebuild": "rimraf ./dist",
-    "build": "tsc && rollup -c rollup.config.mjs",
+    "build": "npm run clean && rollup -c && npm run build-type",
+    "build-type": "echo '{\"type\":\"commonjs\"}' > lib/cjs/package.json && echo '{\"type\":\"module\"}' > lib/esm/package.json",
+    "clean": "rimraf ./lib",
     "lint": "exit 0",
     "test:unit": "vitest test/unit",
     "test:package": "npm run test:package:rollup && npm run test:package:vite",
@@ -69,6 +70,8 @@
   },
   "devDependencies": {
     "@release-it/conventional-changelog": "10.0.1",
+    "@rollup/plugin-commonjs": "28.0.6",
+    "@rollup/plugin-node-resolve": "16.0.1",
     "@rollup/plugin-typescript": "12.1.4",
     "@tsconfig/node18": "18.2.4",
     "@types/node": "24.3.0",
@@ -78,6 +81,7 @@
     "release-it": "19.0.4",
     "rimraf": "6.0.1",
     "rollup": "4.46.4",
+    "rollup-plugin-node-externals": "8.1.0",
     "tslib": "2.8.1",
     "typescript": "5.9.2",
     "vitest": "3.2.4"
@@ -86,9 +90,9 @@
     "rollup-plugin-stats": "1.5.0"
   },
   "peerDependencies": {
-    "vite": "^5.0.0 || ^6.0.0 || ^7.0.0",
+    "rolldown": "^1.0.0-beta.0",
     "rollup": "^3.0.0 || ^4.0.0",
-    "rolldown": "^1.0.0-beta.0"
+    "vite": "^5.0.0 || ^6.0.0 || ^7.0.0"
   },
   "peerDependenciesMeta": {
     "vite": {

package.json

@@ -1,36 +1,65 @@
+import path from 'node:path';
 import { defineConfig } from 'rollup';
-import typescript from '@rollup/plugin-typescript';
+import commonjsPlugin from '@rollup/plugin-commonjs';
+import nodeResolvePlugin from '@rollup/plugin-node-resolve';
+import typescriptPlugin from '@rollup/plugin-typescript';
+
+const CONTEXT = path.join(import.meta.dirname, './src');
 
 const INPUT = {
   'index': './src/index.ts',
   'transform': './src/transform.ts',
 };
 
-const OUTPUT_DIR = 'dist';
+const OUTPUT_DIR = 'lib';
 
 export default defineConfig([
   {
+    context: CONTEXT,
     input: INPUT,
     output: {
       dir: OUTPUT_DIR,
-      format: 'esm',
-      entryFileNames: '[name].mjs',
-      chunkFileNames: 'chunks/[name].mjs',
+      format: 'cjs',
+      entryFileNames: 'cjs/[name].js',
       sourcemap: true,
+      preserveModules: true,
+      preserveModulesRoot: CONTEXT,
+      interop: 'auto',
     },
-    plugins: [typescript({ tsconfig: './tsconfig.json' })],
-    external: ['crypto', 'path'],
+    external: /node_modules/,
+    plugins: [
+      nodeResolvePlugin({
+        extensions: ['.js', '.cjs', '.json'],
+      }),
+      commonjsPlugin({
+        defaultIsModuleExports: 'auto',
+      }),
+      typescriptPlugin({
+        tsconfig: './tsconfig.cjs.json',
+      }),
+    ],
   },
   {
-    input: INPUT,
+    context: CONTEXT,
+    input: './src/index.ts',
     output: {
       dir: OUTPUT_DIR,
-      format: 'commonjs',
-      entryFileNames: '[name].cjs',
-      chunkFileNames: 'chunks/[name].cjs',
+      format: 'esm',
+      entryFileNames: 'esm/[name].js',
       sourcemap: true,
+      preserveModules: true,
+      preserveModulesRoot: CONTEXT,
+      interop: 'auto',
     },
-    plugins: [typescript({ tsconfig: './tsconfig.json' })],
-    external: ['crypto', 'path'],
+    external: /node_modules/,
+    plugins: [
+      nodeResolvePlugin({
+        extensions: ['.js', '.mjs', '.cjs', '.json'],
+      }),
+      commonjsPlugin(),
+      typescriptPlugin({
+        tsconfig: './tsconfig.esm.json',
+      }),
+    ],
   },
 ]);

rollup.config.mjs

@@ -15,7 +15,7 @@
     "@rollup/plugin-typescript": "^12.1.4",
     "cross-env": "^7.0.0",
     "rollup": "^4.9.1",
-    "rollup-plugin-webpack-stats": "*",
+    "rollup-plugin-webpack-stats": "file://../../../",
     "typescript": "^5.9.2"
   }
 }

test/package/rollup/package.json

@@ -0,0 +1,30 @@
+{
+  "extends": "@tsconfig/node18/tsconfig.json",
+  "compilerOptions": {
+    /* dirs */
+    "rootDir": "./src",
+    "declarationDir": "./lib/types",
+    "types": ["node"],
+    /* module config */
+    "target": "es2020",
+    "lib": ["es2020", "es2022.error"],
+    "resolveJsonModule": true,
+    "esModuleInterop": true,
+    /* behaviour options */
+    "strict": true,
+    "allowJs": true,
+    "allowSyntheticDefaultImports": true,
+    "noFallthroughCasesInSwitch": true,
+    "declaration": true,
+    "sourceMap": true,
+    "noImplicitReturns": true,
+    "noImplicitOverride": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "skipLibCheck": true,
+    "forceConsistentCasingInFileNames": true,
+    "noEmit": true
+  },
+  "include": ["src"],
+  "exclude": ["node_modules", "lib"]
+}

tsconfig.base.json

@@ -0,0 +1,6 @@
+{
+  "extends": "./tsconfig.base.json",
+  "compilerOptions": {
+    "outDir": "./lib/cjs"
+  }
+}

tsconfig.cjs.json

@@ -0,0 +1,6 @@
+{
+  "extends": "./tsconfig.base.json",
+  "compilerOptions": {
+    "outDir": "./lib/esm"
+  }
+}