Migrate to ESLint 9

.eslintignore

@@ -1,3 +0,0 @@
-*.cjs
-*.mjs
-*.js

.eslintrc.cjs

@@ -1,17 +0,0 @@
-module.exports = {
-  extends: ['mantine', 'plugin:@next/next/recommended', 'plugin:jest/recommended'],
-  plugins: ['testing-library', 'jest'],
-  overrides: [
-    {
-      files: ['**/?(*.)+(spec|test).[jt]s?(x)'],
-      extends: ['plugin:testing-library/react'],
-    },
-  ],
-  parserOptions: {
-    project: './tsconfig.json',
-  },
-  rules: {
-    'react/react-in-jsx-scope': 'off',
-    'import/extensions': 'off',
-  },
-};

eslint.config.mjs

@@ -0,0 +1,4 @@
+import mantine from 'eslint-config-mantine';
+import tseslint from 'typescript-eslint';
+
+export default tseslint.config(...mantine, { ignores: ['**/*.{mjs,cjs,js,d.ts,d.mts}'] });

package.json

@@ -8,8 +8,9 @@
     "analyze": "ANALYZE=true next build",
     "start": "next start",
     "typecheck": "tsc --noEmit",
-    "lint": "next lint && npm run lint:stylelint",
+    "lint": "npm run eslint && npm run stylelint",
-    "lint:stylelint": "stylelint '**/*.css' --cache",
+    "eslint": "next lint",
+    "stylelint": "stylelint '**/*.css' --cache",
     "jest": "jest",
     "jest:watch": "jest --watch",
     "prettier:check": "prettier --check \"**/*.{ts,tsx}\"",
@@ -29,30 +30,23 @@
   },
   "devDependencies": {
     "@babel/core": "^7.24.7",
+    "@eslint/js": "^9.15.0",
     "@ianvs/prettier-plugin-sort-imports": "^4.3.1",
-    "@next/eslint-plugin-next": "^14.2.4",
     "@storybook/nextjs": "^8.1.10",
     "@storybook/react": "^8.1.10",
     "@testing-library/dom": "^10.1.0",
     "@testing-library/jest-dom": "^6.4.6",
     "@testing-library/react": "^16.0.0",
     "@testing-library/user-event": "^14.5.2",
+    "@types/eslint-plugin-jsx-a11y": "^6",
     "@types/jest": "^29.5.12",
     "@types/node": "^20.14.8",
     "@types/react": "18.3.3",
-    "@typescript-eslint/eslint-plugin": "^7.13.1",
-    "@typescript-eslint/parser": "^7.13.1",
     "babel-loader": "^9.1.3",
-    "eslint": "^8.57.0",
+    "eslint": "^9.15.0",
-    "eslint-config-airbnb": "19.0.4",
+    "eslint-config-mantine": "^4.0.3",
-    "eslint-config-airbnb-typescript": "^18.0.0",
+    "eslint-plugin-jsx-a11y": "^6.10.2",
-    "eslint-config-mantine": "3.2.0",
+    "eslint-plugin-react": "^7.37.2",
-    "eslint-plugin-import": "^2.29.1",
-    "eslint-plugin-jest": "^28.6.0",
-    "eslint-plugin-jsx-a11y": "^6.9.0",
-    "eslint-plugin-react": "^7.34.3",
-    "eslint-plugin-react-hooks": "^4.6.2",
-    "eslint-plugin-testing-library": "^6.2.2",
     "jest": "^29.7.0",
     "jest-environment-jsdom": "^29.7.0",
     "postcss": "^8.4.38",
@@ -64,7 +58,8 @@
     "stylelint": "^16.6.1",
     "stylelint-config-standard-scss": "^13.1.0",
     "ts-jest": "^29.1.5",
-    "typescript": "5.5.2"
+    "typescript": "5.5.2",
+    "typescript-eslint": "^8.14.0"
   },
   "packageManager": "yarn@4.5.1"
 }