feat: automatic workspace config

Added feature to detect automatically monorepos and it's
tsconfig.json and jsconfig.json files

eslint.config.js

@@ -1,7 +1,6 @@
 import { defineConfig } from 'readable';
 
 export default defineConfig({
-	tsconfig: ['./tsconfig.json', './packages/*/tsconfig.json', './packages/*/jsconfig.json'],
 	environment: {
 		node: true,
 	},

packages/core/index.d.ts

@@ -1,3 +1,3 @@
 import type { Config, ESConfig } from './src/types';
 
-export function defineConfig(config: Config): ESConfig[];
+export async function defineConfig(config: Config): Promise<ESConfig[]>;

packages/core/package.json

@@ -23,13 +23,14 @@
     "@eslint/js": "^8.44.0",
     "@types/eslint__js": "^8.42.0",
     "@types/node": "^20.4.1",
-    "eslint": "^8.44.0"
+    "eslint": "^8.44.0",
+    "typescript": "^5.1.6"
   },
   "dependencies": {
     "@eslint/eslintrc": "^2.1.0",
     "@typescript-eslint/eslint-plugin": "^5.45.0",
     "@typescript-eslint/parser": "^5.45.0",
     "globals": "^13.20.0",
-    "typescript": "^5.0.0"
+    "yaml": "^2.3.1"
   }
 }

packages/core/src/@types/globals.d.ts

@@ -0,0 +1,10 @@
+declare module 'globals' {
+	const globals: {
+		builtin: Record<string, boolean>
+		browser: Record<string, boolean>
+		node: Record<string, boolean>
+		nodeBuiltin: Record<string, boolean>
+		commonjs: Record<string, boolean>
+	};
+	export default globals;
+}

packages/core/src/index.js

@@ -3,6 +3,7 @@ import tsEslint from '@typescript-eslint/eslint-plugin';
 import tsParser from '@typescript-eslint/parser';
 import js from '@eslint/js';
 import * as configs from './configs/index.js';
+import { getTsConfigs } from './tsconfigs.js';
 
 /**
  * @param {import('./types').Config} userConfig
@@ -12,6 +13,8 @@ import * as configs from './configs/index.js';
 export async function defineConfig(userConfig) {
 
 	userConfig.strict ??= true;
+	userConfig.rootDir ??= process.cwd();
+	userConfig.tsconfig ??= await getTsConfigs(userConfig.rootDir);
 
 	process.env.READABLE_ESLINT_STRICT = userConfig.strict;
 	process.env.READABLE_ESLINT_OPTIONS = {
@@ -33,7 +36,7 @@ export async function defineConfig(userConfig) {
 		},
 		js.configs.recommended,
 		{
-			files: ['**/*.js', '**/*.ts'],
+			files: ['**/*.js', '**/*.cjs', '**/*.mjs', '**/*.ts', '**/*.cts', '**/*.mts'],
 			plugins: {
 				'@typescript-eslint': tsEslint,
 			},
@@ -42,7 +45,7 @@ export async function defineConfig(userConfig) {
 				parser: tsParser,
 				parserOptions: {
 					project: userConfig.tsconfig,
-					tsconfigRootDir: userConfig.rootDir ?? process.cwd(),
+					tsconfigRootDir: userConfig.rootDir,
 				},
 			},
 			rules: {

packages/core/src/tsconfigs.js

@@ -0,0 +1,87 @@
+import { existsSync } from 'node:fs';
+import { readFile } from 'node:fs/promises';
+import { join, normalize } from 'node:path';
+
+/** @type {(...path: string[]) => string} */
+function toPath(...path) {
+	return normalize(join(...path));
+}
+
+/** @type {(...path: string[]) => boolean} */
+function exists(...path) {
+	return existsSync(toPath(...path));
+}
+
+/**
+ * @param {string} directory
+ * @returns {Promise<string[]>}
+ */
+async function getMonorepoConfigs(directory) {
+
+	/** @type {string[]} */
+	const paths = [];
+
+	if (exists(directory, 'pnpm-workspace.yaml') || exists(directory, 'pnpm-workspace.yml')) {
+
+		const YAML = await import('yaml');
+
+		const yamlFilePath = exists(directory, 'pnpm-workspace.yaml')
+			? join(directory, 'pnpm-workspace.yaml')
+			: join(directory, 'pnpm-workspace.yml');
+
+		/** @type {{packages?: string[], [properties: string]: unknown}} */
+		// eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
+		const pnpmWorkspaces = YAML.parse(await readFile(yamlFilePath, 'utf-8'));
+
+		const files = pnpmWorkspaces.packages?.map(w => [
+			toPath(directory, w, 'tsconfig.json'),
+			toPath(directory, w, 'jsconfig.json'),
+		]).flat() ?? [];
+
+		paths.push(...files);
+
+	}
+	else if (exists(directory, 'package.json')) {
+		/** @type {{workspaces?: string[], [properties: string]: unknown}} */
+		// eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
+		const packageJson = JSON.parse(await readFile(join(directory, 'package.json'), 'utf-8'));
+
+		const files = packageJson.workspaces?.map(w => [
+			toPath(directory, w, 'tsconfig.json'),
+			toPath(directory, w, 'jsconfig.json'),
+		]).flat() ?? [];
+
+		paths.push(...files);
+
+	}
+
+	return paths;
+
+}
+
+/**
+ * @param {string} directory
+ * @returns {Promise<string[]>}
+ */
+export async function getTsConfigs(directory) {
+
+	const rootTSConfig = exists(directory, 'tsconfig.eslint.json')
+		? toPath(directory, 'tsconfig.eslint.json')
+		: exists(directory, 'tsconfig.json')
+			? toPath(directory, 'tsconfig.json')
+			: undefined;
+
+	const rootJSConfig = exists(directory, 'jsconfig.eslint.json')
+		? toPath(directory, 'jsconfig.eslint.json')
+		: exists(directory, 'jsconfig.json')
+			? toPath(directory, 'jsconfig.json')
+			: undefined;
+
+	const monorepoConfigs = await getMonorepoConfigs(directory);
+
+	const paths = /** @type {string[]} */
+		([rootTSConfig, rootJSConfig, ...monorepoConfigs]).filter(p => p);
+
+	return paths;
+
+}

pnpm-lock.yaml

@@ -87,9 +87,9 @@ importers:
       globals:
         specifier: ^13.20.0
         version: 13.20.0
-      typescript:
-        specifier: ^5.0.0
-        version: 5.1.6
+      yaml:
+        specifier: ^2.3.1
+        version: 2.3.1
     devDependencies:
       '@eslint/js':
         specifier: ^8.44.0
@@ -103,6 +103,9 @@ importers:
       eslint:
         specifier: ^8.44.0
         version: 8.44.0
+      typescript:
+        specifier: ^5.1.6
+        version: 5.1.6
 
 packages:
 
@@ -3476,6 +3479,11 @@ packages:
     engines: {node: '>= 6'}
     dev: true
 
+  /yaml@2.3.1:
+    resolution: {integrity: sha512-2eHWfjaoXgTBC2jNM1LRef62VQa0umtvRiDSk6HSzW7RvS5YtkabJrwYLLEKWBc8a5U2PTSCs+dJjUTJdlHsWQ==}
+    engines: {node: '>= 14'}
+    dev: false
+
   /yargs-parser@18.1.3:
     resolution: {integrity: sha512-o50j0JeToy/4K6OZcaQmW6lyXXKhq7csREXcDwk2omFPJEwUNOVtJKvmDr9EI1fAJZUyZcRF7kxGBWmRXudrCQ==}
     engines: {node: '>=6'}

tsconfig.json

@@ -13,6 +13,6 @@
 		"alwaysStrict": true,
 		"outDir": "./dir"
 	},
-	"include": ["**/*.ts", "**/*.js"],
+	"include": ["eslint.config.js", "commitlint.config.cjs"],
 	"exclude": ["./node_modules/**", "./dist/**"]
 }