fix(eslint): prepare for Rollup 3

packages/eslint/README.md

@@ -11,6 +11,10 @@
 
 🍣 A Rollup plugin to lint entry points and all imported files with ESLint.
 
+## Requirements
+
+This plugin requires an [LTS](https://github.com/nodejs/Release) Node version (v14.0.0+) and Rollup v1.20.0+.
+
 ## Install
 
 Using npm:

packages/eslint/package.json

@@ -13,10 +13,15 @@
   "author": "Bogdan Chadkin <trysound@yandex.ru>",
   "homepage": "https://github.com/rollup/plugins/tree/master/packages/eslint#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": {
+    "import": "./dist/es/index.js",
+    "types": "./types/index.d.ts",
+    "default": "./dist/cjs/index.js"
+  },
   "engines": {
-    "node": ">= 10.0.0"
+    "node": ">=14.0.0"
   },
   "scripts": {
     "build": "rollup -c",
@@ -34,6 +39,7 @@
   },
   "files": [
     "dist",
+    "!dist/**/*.map",
     "types",
     "README.md",
     "LICENSE"
@@ -48,30 +54,26 @@
     "lint"
   ],
   "peerDependencies": {
-    "rollup": "^1.20.0||^2.0.0"
+    "rollup": "^1.20.0||^2.0.0||^3.0.0"
+  },
+  "peerDependenciesMeta": {
+    "rollup": {
+      "optional": true
+    }
   },
   "dependencies": {
-    "@rollup/pluginutils": "^4.0.0",
-    "eslint": "^7.12.0"
+    "@rollup/pluginutils": "^4.2.1",
+    "eslint": "^7.32.0"
   },
   "devDependencies": {
-    "@rollup/plugin-node-resolve": "^9.0.0",
-    "@rollup/plugin-typescript": "^6.0.0",
-    "@types/eslint": "^7.2.2",
-    "rollup": "^2.67.3",
-    "typescript": "^4.1.2"
+    "@rollup/plugin-node-resolve": "^14.1.0",
+    "@rollup/plugin-typescript": "^8.5.0",
+    "@types/eslint": "^7.29.0",
+    "rollup": "^3.0.0-7",
+    "typescript": "^4.8.3"
   },
-  "types": "types/index.d.ts",
+  "types": "./types/index.d.ts",
   "ava": {
-    "babel": {
-      "compileEnhancements": false
-    },
-    "extensions": [
-      "ts"
-    ],
-    "require": [
-      "ts-node/register"
-    ],
     "files": [
       "!**/fixtures/**",
       "!**/helpers/**",

packages/eslint/rollup.config.mjs

@@ -0,0 +1,7 @@
+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'))
+});

packages/eslint/src/index.ts

@@ -4,7 +4,7 @@ import { Plugin } from 'rollup';
 import { createFilter } from '@rollup/pluginutils';
 import { CLIEngine } from 'eslint';
 
-import { RollupEslintOptions } from '../types';
+import type { RollupEslintOptions } from '../types';
 
 function normalizePath(id: string) {
   return path.relative(process.cwd(), id).split(path.sep).join('/');

packages/eslint/test/test.js → packages/eslint/test/test.mjs

@@ -1,10 +1,12 @@
 import fs from 'fs';
 
+import { createRequire } from 'module';
+
 import test from 'ava';
 import nodeResolve from '@rollup/plugin-node-resolve';
 import { rollup } from 'rollup';
 
-import eslint from '../dist';
+import eslint from 'current-package';
 
 test('should lint files', async (t) => {
   let count = 0;
@@ -181,3 +183,24 @@ test('should fix source code', async (t) => {
 
   fs.unlinkSync('./test/fixtures/fixable-clone.js');
 });
+
+test('works with cjs plugin', async (t) => {
+  const require = createRequire(import.meta.url);
+  const eslintPluginCjs = require('current-package');
+  let count = 0;
+  await rollup({
+    input: './test/fixtures/undeclared.js',
+    plugins: [
+      eslintPluginCjs({
+        formatter: (results) => {
+          count += results[0].messages.length;
+          // eslint-disable-next-line prefer-destructuring
+          const { message } = results[0].messages[0];
+          t.is(message, "'x' is not defined.");
+        }
+      })
+    ]
+  });
+
+  t.is(count, 1);
+});

tsconfig.base.json

@@ -12,7 +12,7 @@
     "pretty": true,
     "sourceMap": true,
     "strict": true,
-    "target": "es2017"
+    "target": "es2019"
   },
   "exclude": ["dist", "node_modules", "test/types"]
 }