Keep original recommended config and add recommended flat

Author: camertron

package.json

@@ -25,7 +25,7 @@
   },
   "homepage": "https://github.com/primer/eslint-plugin-primer-react#readme",
   "peerDependencies": {
-    "eslint": "^9.16.0"
+    "eslint": "^8 || ^9"
   },
   "dependencies": {
     "@styled-system/props": "^5.1.5",

src/configs/flat/recommended.js

@@ -0,0 +1,39 @@
+const {jsxA11yMapping, githubMapping} = require('../components')
+const github = require('eslint-plugin-github')
+const primerReact = require('eslint-plugin-primer-react')
+
+module.exports = [
+  {
+    languageOptions: {
+      parserOptions: {
+        sourceType: 'module',
+        ecmaFeatures: {
+          jsx: true,
+        },
+      },
+    },
+    plugins: {github, 'primer-react': primerReact},
+    rules: {
+      'primer-react/direct-slot-children': 'error',
+      'primer-react/no-system-props': 'warn',
+      'primer-react/a11y-tooltip-interactive-trigger': 'error',
+      'primer-react/new-color-css-vars': 'error',
+      'primer-react/a11y-explicit-heading': 'error',
+      'primer-react/no-deprecated-props': 'warn',
+      'primer-react/a11y-remove-disable-tooltip': 'error',
+      'primer-react/a11y-use-accessible-tooltip': 'error',
+      'primer-react/no-unnecessary-components': 'error',
+      'primer-react/prefer-action-list-item-onselect': 'error',
+      'primer-react/enforce-css-module-identifier-casing': 'error',
+      'primer-react/enforce-css-module-default-import': ['error', {enforceName: '(^classes$|Classes$)'}],
+    },
+    settings: {
+      github: {
+        components: githubMapping,
+      },
+      'jsx-a11y': {
+        components: jsxA11yMapping,
+      },
+    },
+  },
+]

src/index.js

@@ -1,3 +1,7 @@
+const getFlatConfigs = () => ({
+  recommended: require('./configs/flat/recommended'),
+})
+
 module.exports = {
   rules: {
     'direct-slot-children': require('./rules/direct-slot-children'),
@@ -20,4 +24,5 @@ module.exports = {
   configs: {
     recommended: require('./configs/recommended'),
   },
+  getFlatConfigs: getFlatConfigs
 }