[INTERNAL] Add common + specific ESLint config

+ Update deps to newer version

eslint.config.mjs → eslint.common.config.js

@@ -1,33 +1,23 @@
-import {fixupConfigRules, fixupPluginRules} from "@eslint/compat";
 import jsdoc from "eslint-plugin-jsdoc";
 import ava from "eslint-plugin-ava";
 import globals from "globals";
-import path from "node:path";
-import {fileURLToPath} from "node:url";
 import js from "@eslint/js";
-import {FlatCompat} from "@eslint/eslintrc";
-
-const __filename = fileURLToPath(import.meta.url);
-const __dirname = path.dirname(__filename);
-const compat = new FlatCompat({
-	baseDirectory: __dirname,
-	recommendedConfig: js.configs.recommended,
-	allConfig: js.configs.all
-});
+import google from "eslint-config-google";
 
 export default [{
-	ignores: [
+	ignores: [ // Common ignore patterns across all tooling repos
 		"**/coverage/",
 		"test/tmp/",
 		"test/expected/",
 		"test/fixtures/",
 		"**/docs/",
 		"**/jsdocs/",
 	],
-}, ...fixupConfigRules(compat.extends("eslint:recommended", "plugin:ava/recommended", "google")), {
+}, js.configs.recommended, google, ava.configs["flat/recommended"], {
+	name: "Common ESLint config used for all tooling repos",
+
 	plugins: {
 		jsdoc,
-		ava: fixupPluginRules(ava),
 	},
 
 	languageOptions: {
@@ -75,6 +65,11 @@ export default [{
 
 		"comma-dangle": "off",
 		"no-tabs": "off",
+		"no-console": 2, // Disallow console.log()
+		"no-eval": 2,
+		// The following rule must be disabled as of ESLint 9.
+		// It's removed and causes issues when present
+		// https://eslint.org/docs/latest/rules/valid-jsdoc
 		"valid-jsdoc": 0,
 		"jsdoc/check-examples": 0,
 		"jsdoc/check-param-names": 2,
@@ -100,4 +95,5 @@ export default [{
 		"jsdoc/valid-types": 0,
 		"ava/assertion-arguments": 0,
 	},
-}];
+}
+];

eslint.config.js

@@ -0,0 +1,9 @@
+import eslintCommonConfig from "./eslint.common.config.js";
+
+export default [
+	...eslintCommonConfig, // Load common ESLint config
+	{
+		// Add project-specific ESLint config rules here
+		// in order to override common config
+	}
+];

package.json

@@ -152,8 +152,6 @@
 		}
 	},
 	"devDependencies": {
-		"@eslint/compat": "^1.1.1",
-		"@eslint/eslintrc": "^3.1.0",
 		"@eslint/js": "^9.8.0",
 		"@istanbuljs/esm-loader-hook": "^0.2.0",
 		"ava": "^6.1.3",
@@ -162,10 +160,11 @@
 		"depcheck": "^1.4.7",
 		"docdash": "^2.0.2",
 		"eslint": "^9.8.0",
-		"eslint-plugin-ava": "^14.0.0",
+		"eslint-config-google": "^0.14.0",
+		"eslint-plugin-ava": "^15.0.1",
 		"eslint-plugin-jsdoc": "^48.11.0",
 		"esmock": "^2.6.7",
-		"globals": "^15.8.0",
+		"globals": "^15.9.0",
 		"istanbul-lib-coverage": "^3.2.2",
 		"istanbul-lib-instrument": "^6.0.3",
 		"istanbul-lib-report": "^3.0.1",