chore: migrate config to flat format with migrator

Author: Belco90

.eslint-doc-generatorrc.js

@@ -1,4 +1,5 @@
 const prettier = require('prettier');
+
 const prettierConfig = require('./.prettierrc.js');
 
 /** @type {import('eslint-doc-generator').GenerateOptions} */

.eslintignore

@@ -0,0 +1,108 @@
+// @ts-check
+
+import { fixupConfigRules } from '@eslint/compat';
+import { FlatCompat } from '@eslint/eslintrc';
+import js from '@eslint/js';
+import { defineConfig, globalIgnores } from 'eslint/config';
+import globals from 'globals';
+import tseslint from 'typescript-eslint';
+
+const compat = new FlatCompat({
+	baseDirectory: import.meta.dirname,
+	recommendedConfig: js.configs.recommended,
+});
+
+const config = defineConfig(
+	{
+		languageOptions: {
+			globals: {
+				...globals.es2019,
+			},
+		},
+
+		extends: fixupConfigRules(
+			compat.extends(
+				'eslint:recommended',
+				'plugin:import/recommended',
+				'plugin:jest/recommended',
+				'plugin:jest-formatting/recommended',
+				'prettier'
+			)
+		),
+
+		rules: {
+			'max-lines-per-function': 'off',
+
+			'import/order': [
+				'warn',
+				{
+					groups: ['builtin', 'external', 'parent', 'sibling', 'index'],
+					'newlines-between': 'always',
+
+					alphabetize: {
+						order: 'asc',
+						caseInsensitive: false,
+					},
+				},
+			],
+
+			'import/first': 'error',
+			'import/no-empty-named-blocks': 'error',
+			'import/no-extraneous-dependencies': 'error',
+			'import/no-mutable-exports': 'error',
+			'import/no-named-default': 'error',
+			'import/no-relative-packages': 'warn',
+		},
+	},
+	{
+		files: ['**/*.ts'],
+
+		languageOptions: {
+			parser: tseslint.parser,
+			parserOptions: {
+				project: './tsconfig.eslint.json',
+				tsconfigRootDir: import.meta.dirname,
+			},
+		},
+
+		extends: fixupConfigRules(
+			compat.extends(
+				'plugin:@typescript-eslint/recommended',
+				'plugin:@typescript-eslint/recommended-type-checked',
+				'plugin:import/typescript'
+			)
+		),
+
+		rules: {
+			'@typescript-eslint/explicit-function-return-type': 'off',
+
+			'@typescript-eslint/no-unused-vars': [
+				'warn',
+				{
+					argsIgnorePattern: '^_',
+				},
+			],
+
+			'@typescript-eslint/no-use-before-define': 'off',
+			'import/default': 'off',
+			'import/export': 'off',
+			'import/namespace': 'off',
+			'import/no-unresolved': 'off',
+		},
+
+		settings: {
+			'import/resolver': {
+				node: {
+					extensions: ['.js', '.ts'],
+				},
+
+				typescript: {
+					alwaysTryTypes: true,
+				},
+			},
+		},
+	},
+	globalIgnores(['**/coverage/', '**/dist/'])
+);
+
+export default config;

.eslintrc.js renamed to .eslintrc-DEPRECATED.js

@@ -490,7 +490,7 @@ export function detectTestingLibraryUtils<
 		/**
 		 * Determines whether a given node is fireEvent method or not
 		 */
-		// eslint-disable-next-line complexity
+		 
 		const isFireEventMethod: IsFireEventMethodFn = (node) => {
 			const fireEventUtil =
 				findImportedTestingLibraryUtilSpecifier(FIRE_EVENT_NAME);
@@ -527,7 +527,7 @@ export function detectTestingLibraryUtils<
 
 			// we know it's defined at this point, but TS seems to think it is not
 			// so here I'm enforcing it once in order to avoid using "!" operator every time
-			// eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+			 
 			const definedParentMemberExpression = parentMemberExpression!;
 
 			// check fireEvent.click() usage

eslint.config.mjs

@@ -301,7 +301,7 @@ export function getVariableReferences(
 	node: TSESTree.Node
 ): TSESLint.Scope.Reference[] {
 	if (ASTUtils.isVariableDeclarator(node)) {
-		// eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
+		 
 		return getDeclaredVariables(context, node)[0]?.references?.slice(1) ?? [];
 	}
 

lib/create-testing-library-rule/detect-testing-library-utils.ts

@@ -59,6 +59,9 @@
 	"devDependencies": {
 		"@commitlint/cli": "^19.6.0",
 		"@commitlint/config-conventional": "^19.6.0",
+		"@eslint/compat": "^1.3.2",
+		"@eslint/eslintrc": "^3.3.1",
+		"@eslint/js": "^9.35.0",
 		"@swc/core": "^1.9.3",
 		"@swc/jest": "^0.2.37",
 		"@types/jest": "^29.5.14",
@@ -78,6 +81,7 @@
 		"eslint-plugin-promise": "^7.1.0",
 		"eslint-remote-tester": "^3.0.1",
 		"eslint-remote-tester-repositories": "^1.0.1",
+		"globals": "^16.3.0",
 		"husky": "^9.1.7",
 		"is-ci": "^3.0.1",
 		"jest": "^29.7.0",
@@ -86,7 +90,8 @@
 		"semantic-release": "^24.2.0",
 		"semver": "^7.6.3",
 		"ts-node": "^10.9.2",
-		"typescript": "^5.7.2"
+		"typescript": "^5.7.2",
+		"typescript-eslint": "^8.43.0"
 	},
 	"peerDependencies": {
 		"eslint": "^8.57.0 || ^9.0.0"

lib/node-utils/index.ts

@@ -1,5 +1,3 @@
-/* eslint-disable  @typescript-eslint/no-require-imports  */
-/* eslint-disable import/no-extraneous-dependencies */
 const { rules } = require('eslint-plugin-testing-library');
 const {
 	getRepositories,