feat: restrict all configs to their respective files

BREAKING CHANGE: typescript config not includes base one anymore

Author: xobotyi

configs/base.js

@@ -8,13 +8,9 @@ import eslintPluginUnicorn from 'eslint-plugin-unicorn';
 
 /** @typedef {import('eslint').Linter} Linter */
 
-/** @type {Linter.Config[]} */
-const baseConfig = [
-	js.configs.recommended,
-
+export const importConfig = [
 	importPlugin.flatConfigs.recommended,
 	{
-		files: ['**/*.{js,mjs,cjs}'],
 		languageOptions: {
 			ecmaVersion: 'latest',
 			sourceType: 'module',
@@ -98,8 +94,27 @@ const baseConfig = [
 					],
 				},
 			],
+
+			// disabled due to https://github.com/import-js/eslint-plugin-import/issues/3076
+			'import/no-unresolved': 'off',
 		},
 	},
+];
+
+/**
+ * Set configs file patters in case config does not have one.
+ *
+ * @param {Linter.Config[]} configs
+ * @param {string[]} files
+ * @return {Linter.Config[]}
+ */
+export function adjustESLintConfigFiles(configs, files) {
+	return configs.map((cfg) => ({ files, ...cfg }));
+}
+
+/** @type {Linter.Config[]} */
+const baseConfig = [
+	js.configs.recommended,
 
 	pluginPromise.configs['flat/recommended'],
 	{
@@ -109,6 +124,8 @@ const baseConfig = [
 		},
 	},
 
+	...importConfig,
+
 	eslintPluginNoUseExtendNative.configs.recommended,
 
 	eslintPluginUnicorn.configs['flat/recommended'],
@@ -242,10 +259,7 @@ const baseConfig = [
 		},
 	},
 
-	{
-		...xo[0],
-		files: ['*.{js,mjs,cjs,ts,tsx,jsx}'],
-	},
+	...xo,
 	{
 		rules: {
 			// annoying rules
@@ -256,9 +270,11 @@ const baseConfig = [
 			// conflicts with prettier
 			'@stylistic/object-curly-spacing': 'off',
 			'@stylistic/quotes': 'off',
+			'@stylistic/arrow-parens': 'off',
+			'@stylistic/comma-dangle': 'off',
 		},
 	},
 	eslintPluginPrettierRecommended,
 ];
 
-export default baseConfig;
+export default adjustESLintConfigFiles(baseConfig, ['**/*.{js,mjs,cjs,jsx,ts,mts,cts,tsx}']);

configs/jest.js

@@ -1,5 +1,6 @@
 import jest from 'eslint-plugin-jest';
+import { adjustESLintConfigFiles } from './base.js';
 
 /** @type {Linter.Config[]} */
 const jestConfig = [jest.configs['flat/recommended']];
-export default jestConfig;
+export default adjustESLintConfigFiles(jestConfig, ['**/*.{test,spec}.{js,jsx,mjs,cjs,ts,tsx}']);

configs/md.js

@@ -24,15 +24,18 @@ const mdConfig = [
 			'import/no-anonymous-default-export': 'off',
 		},
 	},
-	eslintPluginPrettierRecommended,
 	{
-		files: ['*.md'],
+		...eslintPluginPrettierRecommended,
+		files: ['**/*.{md,mdx}'],
+	},
+	{
+		files: ['**/*.md'],
 		rules: {
 			'prettier/prettier': ['error', { parser: 'markdown' }],
 		},
 	},
 	{
-		files: ['*.mdx'],
+		files: ['**/*.mdx'],
 		rules: {
 			'prettier/prettier': ['error', { parser: 'mdx' }],
 		},

configs/node.js

@@ -4,7 +4,7 @@ import nodePlugin from 'eslint-plugin-n';
 const nodeConfig = [
 	nodePlugin.configs['flat/recommended-module'],
 	{
-		files: ['*.{js,mjs,cjs}'],
+		files: ['**/*.{js,mjs,cjs,ts,mts,cts}'],
 		languageOptions: {
 			ecmaVersion: 'latest',
 			sourceType: 'module',

configs/react.js

@@ -1,7 +1,8 @@
 import pluginReact from 'eslint-plugin-react';
 import pluginReactHooks from 'eslint-plugin-react-hooks';
+import { adjustESLintConfigFiles } from './base.js';
 
-/** @var {Linter.Config[]} config */
+/** @var {Linter.Config[]} */
 const reactConfig = [
 	pluginReact.configs.flat.recommended,
 	pluginReactHooks.configs.recommended,
@@ -22,4 +23,4 @@ const reactConfig = [
 		},
 	},
 ];
-export default reactConfig;
+export default adjustESLintConfigFiles(reactConfig, ['**/*.{ts,tsx,js,jsx}']);

configs/typescript-unsafe.js

@@ -1,6 +1,7 @@
+import { adjustESLintConfigFiles } from './base.js';
 import typescriptConfig from './typescript.js';
 
-/** @var {Linter.Config[]} config */
+/** @var {Linter.Config[]} */
 const typescriptUnsafeConfig = [
 	...typescriptConfig,
 	{
@@ -15,4 +16,4 @@ const typescriptUnsafeConfig = [
 		},
 	},
 ];
-export default typescriptUnsafeConfig;
+export default adjustESLintConfigFiles(typescriptUnsafeConfig, ['**/*.{ts,tsx,mts,ctx}']);

configs/typescript.js

@@ -1,10 +1,12 @@
 import xoTypescript from 'eslint-config-xo-typescript';
+import importPlugin from 'eslint-plugin-import';
 import eslintPluginPrettierRecommended from 'eslint-plugin-prettier/recommended';
-import baseConfig from './base.js';
+import { adjustESLintConfigFiles, importConfig } from './base.js';
 
-/** @var {Linter.Config[]} config */
+/** @var {Linter.Config[]} */
 const typescriptConfig = [
-	...baseConfig,
+	...importConfig,
+	importPlugin.flatConfigs.typescript,
 
 	...xoTypescript,
 	{
@@ -50,9 +52,20 @@ const typescriptConfig = [
 					prefer: 'type-imports',
 				},
 			],
+
+			// annoying rules
+			'default-case': 'off',
+			'capitalized-comments': 'off',
+			'function-call-argument-newline': 'off',
+
+			// conflicts with prettier
+			'@stylistic/object-curly-spacing': 'off',
+			'@stylistic/quotes': 'off',
+			'@stylistic/arrow-parens': 'off',
+			'@stylistic/comma-dangle': 'off',
 		},
 	},
 
 	eslintPluginPrettierRecommended,
 ];
-export default typescriptConfig;
+export default adjustESLintConfigFiles(typescriptConfig, ['**/*.{ts,mts,ctx,tsx}']);

configs/vitest.js

@@ -1,11 +1,11 @@
 import vitest from '@vitest/eslint-plugin';
+import { adjustESLintConfigFiles } from './base.js';
 
-/** @var {Linter.Config[]} config */
+/** @var {Linter.Config[]} */
 const vitestConfig = [
 	{
-		files: ['*.test.{js,jsx,ts,tsx}', '*.suite.{js,jsx,ts,tsx}'],
 		plugins: { vitest },
 		rules: vitest.configs.recommended.rules,
 	},
 ];
-export default vitestConfig;
+export default adjustESLintConfigFiles(vitestConfig, ['**/*.{test,spec}.{js,jsx,mjs,cjs,ts,tsx}']);