feat: support flat config

This change adds support for the new flat config format.  In order to import from json, I had to add the rollup json plugin to the rollup build script.  I also updated the README to include usage examples.

Example usage:
```js
export default [
 {
    files: ['**/*.{js,jsx}'],
    languageOptions: {
      ecmaVersion: 2020,
      globals: globals.browser,
      parserOptions: {
        ecmaVersion: 'latest',
        ecmaFeatures: {jsx: true},
        sourceType: 'module',
      },
    },
    settings: {react: {version: '18.3'}},
    ...reactHooks.flatConfigs.recommended,
  },
];
```

package.json

@@ -38,6 +38,7 @@
     "@babel/traverse": "^7.11.0",
     "@rollup/plugin-babel": "^6.0.3",
     "@rollup/plugin-commonjs": "^24.0.1",
+    "@rollup/plugin-json": "^6.1.0",
     "@rollup/plugin-node-resolve": "^15.0.1",
     "@rollup/plugin-replace": "^5.0.2",
     "abortcontroller-polyfill": "^1.7.5",

packages/eslint-plugin-react-hooks/README.md

@@ -18,7 +18,9 @@ npm install eslint-plugin-react-hooks --save-dev
 yarn add eslint-plugin-react-hooks --dev
 ```
 
-Then extend the recommended eslint config:
+### Legacy Config (.eslintrc)
+
+Extend the recommended eslint config:
 
 ```js
 {
@@ -29,10 +31,25 @@ Then extend the recommended eslint config:
 }
 ```
 
+### Flat Config (eslint.config.js)
+
+Add the recommended config
+
+```js
+import reactHooks from 'eslint-plugin-react-hooks';
+
+export default [
+  // ...
+  reactHooks.flatConfigs.recommended,
+];
+```
+
 ### Custom Configuration
 
 If you want more fine-grained configuration, you can instead add a snippet like this to your ESLint configuration file:
 
+#### Legacy Config (.eslintrc)
+
 ```js
 {
   "plugins": [
@@ -47,6 +64,23 @@ If you want more fine-grained configuration, you can instead add a snippet like
 }
 ```
 
+#### Flat Config (eslint.config.js)
+
+```js
+import reactHooks from 'eslint-plugin-react-hooks';
+
+export default [
+  {
+    files: ['**/*.{js,jsx}'],
+    plugins: { 'react-hooks': reactHooks },
+    // ...
+    rules: {
+      'react-hooks/rules-of-hooks': 'error',
+      'react-hooks/exhaustive-deps': 'warn',
+    }
+  },
+];
+```
 
 ## Advanced Configuration
 

packages/eslint-plugin-react-hooks/src/index.js

@@ -9,18 +9,45 @@
 
 import RulesOfHooks from './RulesOfHooks';
 import ExhaustiveDeps from './ExhaustiveDeps';
+import {name, version} from '../package.json';
 
+// All rules
+export const rules = {
+  'rules-of-hooks': RulesOfHooks,
+  'exhaustive-deps': ExhaustiveDeps,
+};
+
+// Rule configs
+const configRules = {
+  'react-hooks/rules-of-hooks': 'error',
+  'react-hooks/exhaustive-deps': 'warn',
+};
+
+// Legacy configs
 export const configs = {
   recommended: {
     plugins: ['react-hooks'],
-    rules: {
-      'react-hooks/rules-of-hooks': 'error',
-      'react-hooks/exhaustive-deps': 'warn',
-    },
+    rules: configRules,
   },
 };
 
-export const rules = {
-  'rules-of-hooks': RulesOfHooks,
-  'exhaustive-deps': ExhaustiveDeps,
+// Base plugin object
+const reactHooksPlugin = {
+  meta: {name, version},
+  rules,
+};
+
+// Flat configs
+export const flatConfigs = {
+  recommended: {
+    name: 'react-hooks/recommended',
+    plugins: {'react-hooks': reactHooksPlugin},
+    rules: configRules,
+  },
+};
+
+export default {
+  ...reactHooksPlugin,
+  configs,
+  flatConfigs,
 };

scripts/rollup/build.js

@@ -4,6 +4,7 @@ const rollup = require('rollup');
 const babel = require('@rollup/plugin-babel').babel;
 const closure = require('./plugins/closure-plugin');
 const flowRemoveTypes = require('flow-remove-types');
+const json = require('@rollup/plugin-json');
 const prettier = require('rollup-plugin-prettier');
 const replace = require('@rollup/plugin-replace');
 const stripBanner = require('rollup-plugin-strip-banner');
@@ -377,6 +378,7 @@ function getPlugins(
       bundleType !== ESM_PROD && bundleType !== ESM_DEV;
 
     return [
+      json(),
       // Keep dynamic imports as externals
       dynamicImports(),
       {

yarn.lock

@@ -3021,6 +3021,13 @@
     is-reference "1.2.1"
     magic-string "^0.27.0"
 
+"@rollup/plugin-json@^6.1.0":
+  version "6.1.0"
+  resolved "https://registry.yarnpkg.com/@rollup/plugin-json/-/plugin-json-6.1.0.tgz#fbe784e29682e9bb6dee28ea75a1a83702e7b805"
+  integrity sha512-EGI2te5ENk1coGeADSIwZ7G2Q8CJS2sF120T7jLw4xFw9n7wIOXHo+kIYRAoVpJAN+kmqZSoO3Fp4JtoNF4ReA==
+  dependencies:
+    "@rollup/pluginutils" "^5.1.0"
+
 "@rollup/plugin-node-resolve@^15.0.1":
   version "15.0.1"
   resolved "https://registry.yarnpkg.com/@rollup/plugin-node-resolve/-/plugin-node-resolve-15.0.1.tgz#72be449b8e06f6367168d5b3cd5e2802e0248971"
@@ -3050,6 +3057,15 @@
     estree-walker "^2.0.2"
     picomatch "^2.3.1"
 
+"@rollup/pluginutils@^5.1.0":
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/@rollup/pluginutils/-/pluginutils-5.1.0.tgz#7e53eddc8c7f483a4ad0b94afb1f7f5fd3c771e0"
+  integrity sha512-XTIWOPPcpvyKI6L1NHo0lFlCyznUEyPmPY1mc3KpPVDYulHSTvyeLNVW00QTLIAFNhR3kYnJTQHeGqU4M3n09g==
+  dependencies:
+    "@types/estree" "^1.0.0"
+    estree-walker "^2.0.2"
+    picomatch "^2.3.1"
+
 "@sinclair/typebox@^0.25.16":
   version "0.25.24"
   resolved "https://registry.yarnpkg.com/@sinclair/typebox/-/typebox-0.25.24.tgz#8c7688559979f7079aacaf31aa881c3aa410b718"