Merge pull request #2 from OreQr/eslint-v9-migration

Migrate eslint to v9

README.md

@@ -21,7 +21,7 @@ Minimalist Next.js boilerplate with modern web development tools.
 - Tailwind CSS
 - shadcn/ui
 - Configured fonts
-- ESLint
+- ESLint v9
 - Prettier
 - VS Code configuration
 - GitHub Actions CI

eslint.config.mjs

@@ -0,0 +1,88 @@
+/* eslint-disable @typescript-eslint/no-unsafe-assignment */
+/* eslint-disable @typescript-eslint/no-unsafe-member-access */
+
+import nextPlugin from "@next/eslint-plugin-next"
+import tseslint from "@typescript-eslint/eslint-plugin"
+import tsParser from "@typescript-eslint/parser"
+import eslintPluginPrettierRecommended from "eslint-plugin-prettier/recommended"
+import tailwind from "eslint-plugin-tailwindcss"
+
+/** @type {import("eslint").Linter.Config[]} */
+const eslintConfig = [
+  {
+    plugins: {
+      "@next/next": nextPlugin,
+    },
+    rules: {
+      ...nextPlugin.configs.recommended.rules,
+      ...nextPlugin.configs["core-web-vitals"].rules,
+    },
+    files: ["**/*.{mjs,ts,tsx}"],
+  },
+
+  ...tailwind.configs["flat/recommended"],
+  {
+    settings: {
+      tailwindcss: {
+        callees: ["cn", "cva"],
+      },
+    },
+  },
+
+  {
+    plugins: {
+      "@typescript-eslint": tseslint,
+    },
+
+    languageOptions: {
+      parser: tsParser,
+      parserOptions: {
+        project: "tsconfig.json",
+      },
+    },
+
+    rules: {
+      ...tseslint.configs["recommended-type-checked"].rules,
+      ...tseslint.configs["stylistic-type-checked"].rules,
+
+      "@next/next/no-html-link-for-pages": "off",
+      "@next/next/no-img-element": "off",
+      "tailwindcss/no-custom-classname": "off",
+      "@typescript-eslint/array-type": "off",
+      "@typescript-eslint/consistent-type-definitions": "off",
+
+      "@typescript-eslint/consistent-type-imports": [
+        "warn",
+        {
+          prefer: "type-imports",
+          fixStyle: "inline-type-imports",
+        },
+      ],
+
+      "@typescript-eslint/no-unused-vars": [
+        "warn",
+        {
+          argsIgnorePattern: "^_",
+          ignoreRestSiblings: true,
+        },
+      ],
+
+      "@typescript-eslint/require-await": "off",
+
+      "@typescript-eslint/no-misused-promises": [
+        "error",
+        {
+          checksVoidReturn: {
+            attributes: false,
+          },
+        },
+      ],
+    },
+  },
+  {
+    ignores: [".next"],
+  },
+  eslintPluginPrettierRecommended,
+]
+
+export default eslintConfig

package.json

@@ -22,7 +22,7 @@
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
     "lucide-react": "^0.469.0",
-    "next": "15.1.3",
+    "next": "15.1.4",
     "next-themes": "^0.4.4",
     "react": "19.0.0",
     "react-dom": "19.0.0",
@@ -34,13 +34,13 @@
     "@types/node": "^22.10.5",
     "@types/react": "^19.0.3",
     "@types/react-dom": "^19.0.2",
-    "@typescript-eslint/eslint-plugin": "^8.19.1",
-    "@typescript-eslint/parser": "^8.19.1",
+    "@typescript-eslint/eslint-plugin": "^8.20.0",
+    "@typescript-eslint/parser": "^8.20.0",
     "concurrently": "^9.1.2",
-    "eslint": "^8.57.1",
-    "eslint-config-next": "15.1.3",
-    "eslint-config-prettier": "^9.1.0",
-    "eslint-plugin-prettier": "^5.2.1",
+    "eslint": "^9.18.0",
+    "eslint-config-next": "15.1.4",
+    "eslint-config-prettier": "^10.0.1",
+    "eslint-plugin-prettier": "^5.2.2",
     "eslint-plugin-tailwindcss": "^3.17.5",
     "postcss": "^8.4.49",
     "prettier": "^3.4.2",