lint: set up

packages/eslint-config-custom/base.js

@@ -0,0 +1,32 @@
+import js from "@eslint/js";
+import eslintConfigPrettier from "eslint-config-prettier";
+import turboPlugin from "eslint-plugin-turbo";
+import tseslint from "typescript-eslint";
+import onlyWarn from "eslint-plugin-only-warn";
+
+/**
+ * A shared ESLint configuration for the repository.
+ *
+ * @type {import("eslint").Linter.Config[]}
+ * */
+export const config = [
+  js.configs.recommended,
+  eslintConfigPrettier,
+  ...tseslint.configs.recommended,
+  {
+    plugins: {
+      turbo: turboPlugin,
+    },
+    rules: {
+      "turbo/no-undeclared-env-vars": "warn",
+    },
+  },
+  {
+    plugins: {
+      onlyWarn,
+    },
+  },
+  {
+    ignores: ["dist/**"],
+  },
+];

packages/eslint-config-custom/package.json

@@ -0,0 +1,28 @@
+{
+  "name": "@repo/eslint-config-custom",
+  "private": true,
+  "type": "module",
+  "version": "1.0.0",
+  "description": "Base configuration for Eslint",
+  "main": "index.cjs",
+  "keywords": [],
+  "author": "Tuan Anh <tuananhit.oct@gmail.com>",
+  "license": "MIT",
+  "exports": {
+    "./base": "./base.js",
+    "./react-internal": "./react-internal.js"
+  },
+  "devDependencies": {
+    "@eslint/js": "^9.24.0",
+    "@typescript-eslint/parser": "^8.30.1",
+    "eslint": "^9.24.0",
+    "eslint-config-prettier": "^10.1.2",
+    "eslint-plugin-only-warn": "^1.1.0",
+    "eslint-plugin-react": "^7.37.5",
+    "eslint-plugin-react-hooks": "^5.2.0",
+    "eslint-plugin-turbo": "^2.5.0",
+    "eslint-plugin-vitest": "^0.5.4",
+    "typescript": "^5.8.3",
+    "typescript-eslint": "^8.30.1"
+  }
+}

packages/eslint-config-custom/react-internal.js

@@ -0,0 +1,34 @@
+import js from "@eslint/js";
+import eslintConfigPrettier from "eslint-config-prettier";
+import tseslint from "typescript-eslint";
+import pluginReactHooks from "eslint-plugin-react-hooks";
+import pluginReact from "eslint-plugin-react";
+import { config as baseConfig } from "./base.js";
+
+/**
+ * A custom ESLint configuration for libraries that use React.
+ *
+ * @type {import("eslint").Linter.Config[]} */
+export const config = [
+  ...baseConfig,
+  js.configs.recommended,
+  eslintConfigPrettier,
+  ...tseslint.configs.recommended,
+  pluginReact.configs.flat.recommended,
+  {
+    languageOptions: {
+      ...pluginReact.configs.flat.recommended.languageOptions,
+    },
+  },
+  {
+    plugins: {
+      "react-hooks": pluginReactHooks,
+    },
+    settings: { react: { version: "detect" } },
+    rules: {
+      ...pluginReactHooks.configs.recommended.rules,
+      // React scope no longer necessary with new JSX transform.
+      "react/react-in-jsx-scope": "off",
+    },
+  },
+];

packages/tiny-react-hooks/eslint.config.js

@@ -0,0 +1,4 @@
+import { config } from "@repo/eslint-config-custom/react-internal";
+
+/** @type {import("eslint").Linter.Config} */
+export default config;

packages/tiny-react-hooks/package.json

@@ -9,7 +9,8 @@
     "dev": "tsup --watch",
     "build": "tsup",
     "test": "vitest",
-    "coverage": "vitest run --coverage"
+    "coverage": "vitest run --coverage",
+    "lint": "eslint . && tsc --noEmit"
   },
   "exports": {
     "./package.json": "./package.json",
@@ -25,7 +26,7 @@
     }
   },
   "devDependencies": {
-    "@repo/typescript-config": "workspace:*",
+    "@repo/eslint-config-custom": "workspace:*",
     "@testing-library/jest-dom": "^6.6.3",
     "@testing-library/react": "^16.3.0",
     "@types/react": "19.1.0",