feature: Migrate jest config to flat config format

.changeset/selfish-toes-return.md

@@ -0,0 +1,5 @@
+---
+"@agaroot/eslint-config-jest": major
+---
+
+Migrate jest config to flat config format

packages/jest/README.md

@@ -12,37 +12,35 @@ Use this setting to ensure consistent code writing and maintain high code qualit
 ## 🚀 Installation
 
 ```shell
-$ npm install -D @agaroot/eslint-config-jest
+npm install -D eslint @agaroot/eslint-config-common @agaroot/eslint-config-definer @agaroot/eslint-config-javascript @agaroot/eslint-config-jest
 
-# Needs install peer dependencies
-$ npm install -D eslint-plugin-jest
+# If you are using TypeScript, install the following package.
+npm install -D @agaroot/eslint-config-typescript
 ```
 
 ## 👏 Getting Started
 
-Create a `.eslintrc.js` file in the root directory of your project, and add `@agaroot/eslint-config-jest` to the `extends` array.
-
-The following is the recommended configuration when using TypeScript.
+Create a `eslint.config.js` file in the root directory of your project.
 
 ```js
-/** @type {import('eslint').Linter.Config} */
-module.exports = {
-  root: true,
-  extends: [
-    '@agaroot/eslint-config-common',
-    '@agaroot/eslint-config-jest',
-  ],
-  parserOptions: {
-    project: './tsconfig.json',
-  },
-  settings: {
-    'import/resolver': {
-      typescript: {
-        project: './tsconfig.json',
-      },
-    },
-  },
-};
+import { common } from '@agaroot/eslint-config-common';
+import { define } from '@agaroot/eslint-config-definer';
+import { javascript } from '@agaroot/eslint-config-javascript';
+import { jest } from '@agaroot/eslint-config-jest';
+import { typescript } from '@agaroot/eslint-config-typescript';
+
+const config = define([
+  common,
+  javascript,
+  jest,
+  // If you are using TypeScript, add the following line.
+  typescript,
+]);
+
+export default config({
+  // If you are using TypeScript, add the following line.
+  tsconfigPath: './tsconfig.json',
+});
 ```
 
 ## 🤝 Contributing

packages/jest/eslint.config.js

@@ -0,0 +1,14 @@
+import { common } from '@agaroot/eslint-config-common';
+import { define } from '@agaroot/eslint-config-definer';
+import { javascript } from '@agaroot/eslint-config-javascript';
+import { typescript } from '@agaroot/eslint-config-typescript';
+
+const config = define([
+  common,
+  javascript,
+  typescript,
+]);
+
+export default config({
+  tsconfigPath: './tsconfig.json',
+});

packages/jest/package.json

@@ -1,5 +1,6 @@
 {
   "name": "@agaroot/eslint-config-jest",
+  "type": "module",
   "version": "2.1.2",
   "description": "ESLint config for AGAROOT",
   "keywords": [
@@ -19,27 +20,52 @@
     "url": "git+https://github.com/agaroot-technologies/eslint-config.git"
   },
   "license": "MIT",
-  "main": "index.cjs",
+  "main": "./dist/index.cjs",
+  "module": "./dist/index.mjs",
+  "types": "./dist/index.d.cts",
+  "exports": {
+    "require": {
+      "types": "./dist/index.d.cts",
+      "default": "./dist/index.cjs"
+    },
+    "import": {
+      "types": "./dist/index.d.mts",
+      "default": "./dist/index.mjs"
+    }
+  },
   "files": [
-    "index.cjs",
+    "dist",
     "LICENSE",
     "README.md"
   ],
   "scripts": {
-    "lint": "eslint . --ext .js,.cjs"
+    "build": "pkgroll",
+    "lint": "eslint ."
+  },
+  "dependencies": {
+    "@typescript-eslint/eslint-plugin": "^7.17.0",
+    "eslint-plugin-jest": "^28.6.0",
+    "globals": "^15.8.0"
   },
   "devDependencies": {
     "@agaroot/eslint-config-common": "workspace:*",
-    "@typescript-eslint/eslint-plugin": "7.17.0",
-    "@typescript-eslint/parser": "7.17.0",
+    "@agaroot/eslint-config-definer": "workspace:*",
+    "@agaroot/eslint-config-javascript": "workspace:*",
+    "@agaroot/eslint-config-typescript": "workspace:*",
+    "@tsconfig/strictest": "2.0.5",
+    "@types/eslint": "8.56.11",
     "eslint": "8.57.0",
-    "eslint-import-resolver-typescript": "3.6.1",
-    "eslint-plugin-import": "2.29.1",
-    "eslint-plugin-jest": "28.6.0",
-    "eslint-plugin-unused-imports": "3.2.0"
+    "pkgroll": "2.4.1"
   },
   "peerDependencies": {
-    "eslint": "^8.0.0",
-    "eslint-plugin-jest": "^28.0.0"
+    "@agaroot/eslint-config-common": "workspace:*",
+    "@agaroot/eslint-config-javascript": "workspace:*",
+    "@agaroot/eslint-config-typescript": "workspace:*",
+    "eslint": "^8.0.0"
+  },
+  "peerDependenciesMeta": {
+    "@agaroot/eslint-config-typescript": {
+      "optional": true
+    }
   }
 }

packages/jest/src/configurators/globals-configurator.ts

@@ -0,0 +1,19 @@
+import g from 'globals';
+
+import { files } from '../files';
+
+import type { Configurator } from '@agaroot/eslint-config-definer';
+
+export const globalsConfigurator: Configurator = () => {
+  return [
+    {
+      name: 'agaroot/jest/globals',
+      files,
+      languageOptions: {
+        globals: {
+          ...g.jest,
+        },
+      },
+    },
+  ];
+};

packages/jest/src/configurators/jest-configurator.ts

@@ -0,0 +1,33 @@
+// eslint-disable-next-line @typescript-eslint/ban-ts-comment
+// @ts-expect-error
+import eslintPluginJest from 'eslint-plugin-jest';
+
+import { files } from '../files';
+
+import type { Configurator } from '@agaroot/eslint-config-definer';
+import type { Linter } from 'eslint';
+
+export const jestConfigurator: Configurator = () => {
+  return [
+    {
+      name: 'jest/recommended',
+      files,
+      // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access
+      ...eslintPluginJest.configs['flat/recommended'] as Linter.FlatConfig,
+    },
+    {
+      name: 'jest/style',
+      files,
+      // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access
+      ...eslintPluginJest.configs['flat/style'] as Linter.FlatConfig,
+    },
+    {
+      name: 'agaroot/jest/rules',
+      files,
+      rules: {
+        '@typescript-eslint/unbound-method': 'off',
+        'jest/unbound-method': 'error',
+      },
+    },
+  ];
+};

packages/jest/src/files.ts

@@ -0,0 +1,4 @@
+export const files = [
+  '*.test.{js,jsx,ts,tsx}',
+  '**/__tests__/**/*.{js,jsx,ts,tsx}',
+];

packages/jest/src/index.ts

@@ -0,0 +1,9 @@
+import { define } from '@agaroot/eslint-config-definer';
+
+import { globalsConfigurator } from './configurators/globals-configurator';
+import { jestConfigurator } from './configurators/jest-configurator';
+
+export const jest = define([
+  globalsConfigurator,
+  jestConfigurator,
+]);

packages/jest/tsconfig.json

@@ -0,0 +1,12 @@
+{
+  "$schema": "https://json.schemastore.org/tsconfig",
+  "extends": [
+    "@tsconfig/strictest/tsconfig.json"
+  ],
+  "compilerOptions": {
+    "target": "ES2022",
+    "module": "ESNext",
+    "moduleResolution": "Bundler",
+    "esModuleInterop": true
+  }
+}