fix(multi-entry): prepare for Rollup 3 (#1289)

BREAKING CHANGES: Requires Node 14

Author: lukastaegert

packages/multi-entry/README.md

@@ -17,7 +17,7 @@ _Note: `default` exports cannot be combined and exported by this plugin. Only na
 
 ## Requirements
 
-This plugin requires an [LTS](https://github.com/nodejs/Release) Node version (v8.3.0+) and Rollup v1.20.0+.
+This plugin requires an [LTS](https://github.com/nodejs/Release) Node version (v14.0.0+) and Rollup v1.20.0+.
 
 ## Install
 

packages/multi-entry/package.json

@@ -13,10 +13,15 @@
   "author": "rollup",
   "homepage": "https://github.com/rollup/plugins/tree/master/packages/multi-entry/#readme",
   "bugs": "https://github.com/rollup/plugins/issues",
-  "main": "dist/index.js",
-  "module": "dist/index.es.js",
+  "main": "./dist/cjs/index.js",
+  "module": "./dist/es/index.js",
+  "exports": {
+    "types": "./types/index.d.ts",
+    "import": "./dist/es/index.js",
+    "default": "./dist/cjs/index.js"
+  },
   "engines": {
-    "node": ">=10.0.0"
+    "node": ">=14.0.0"
   },
   "scripts": {
     "build": "rollup -c",
@@ -33,6 +38,7 @@
   },
   "files": [
     "dist",
+    "!dist/**/*.map",
     "types",
     "README.md",
     "LICENSE"
@@ -46,20 +52,22 @@
     "entries"
   ],
   "peerDependencies": {
-    "rollup": "^1.20.0 || ^2.0.0"
+    "rollup": "^1.20.0||^2.0.0||^3.0.0"
+  },
+  "peerDependenciesMeta": {
+    "rollup": {
+      "optional": true
+    }
   },
   "dependencies": {
     "@rollup/plugin-virtual": "^2.0.3",
-    "matched": "^5.0.0"
+    "matched": "^5.0.1"
   },
   "devDependencies": {
-    "rollup": "^2.67.3"
+    "rollup": "^3.0.0-7"
   },
   "types": "./types/index.d.ts",
   "ava": {
-    "babel": {
-      "compileEnhancements": false
-    },
     "files": [
       "!**/fixtures/**",
       "!**/helpers/**",

packages/multi-entry/rollup.config.js

@@ -0,0 +1,11 @@
+import { readFileSync } from 'fs';
+
+import { createConfig } from '../../shared/rollup.config.mjs';
+
+export default {
+  ...createConfig({
+    pkg: JSON.parse(readFileSync(new URL('./package.json', import.meta.url), 'utf8'))
+  }),
+  input: 'src/index.js',
+  plugins: []
+};

packages/multi-entry/rollup.config.mjs

@@ -1,11 +1,13 @@
 /* eslint-disable no-bitwise */
 
+import { createRequire } from 'module';
+
 import test from 'ava';
 import { rollup } from 'rollup';
 
-import { getCode } from '../../../util/test';
+import multiEntry from 'current-package';
 
-import multiEntry from '../';
+import { getCode } from '../../../util/test.js';
 
 test('takes a single file as input', async (t) => {
   const bundle = await rollup({ input: 'test/fixtures/0.js', plugins: [multiEntry()] });
@@ -81,3 +83,11 @@ test('makes a bundle with entryFileName as the filename', async (t) => {
   const [result] = await getCode(bundle, { format: 'cjs' }, true);
   t.is(result.fileName, 'testing.js');
 });
+
+test('works as CJS plugin', async (t) => {
+  const require = createRequire(import.meta.url);
+  const multiEntryPluginCjs = require('current-package');
+  const bundle = await rollup({ input: 'test/fixtures/0.js', plugins: [multiEntryPluginCjs()] });
+  const code = await getCode(bundle);
+  t.truthy(code.includes('exports.zero = zero;'));
+});