Migrate to flat config

eslint.config.mjs

@@ -0,0 +1,132 @@
+import jsdoc from "eslint-plugin-jsdoc";
+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,
+});
+
+export default [
+	{
+		ignores: ["**/dist/", "**/coverage/", "**/docs/"],
+	},
+	...compat.extends("eslint:recommended", "google"),
+	{
+		plugins: {
+			jsdoc,
+		},
+
+		languageOptions: {
+			globals: {
+				...globals.node,
+			},
+
+			ecmaVersion: 2022,
+			sourceType: "module",
+		},
+
+		settings: {
+			jsdoc: {
+				tagNamePreference: {
+					return: "returns",
+				},
+			},
+		},
+
+		rules: {
+			"indent": ["error", "tab"],
+			"linebreak-style": ["error", "unix"],
+
+			"quotes": [
+				"error",
+				"double",
+				{
+					allowTemplateLiterals: true,
+				},
+			],
+
+			"semi": ["error", "always"],
+			"no-negated-condition": "off",
+			"require-jsdoc": "off",
+			"no-mixed-requires": "off",
+
+			"max-len": [
+				"error",
+				{
+					code: 120,
+					ignoreUrls: true,
+					ignoreRegExpLiterals: true,
+				},
+			],
+
+			"no-implicit-coercion": [
+				2,
+				{
+					allow: ["!!"],
+				},
+			],
+
+			"comma-dangle": "off",
+			"no-tabs": "off",
+			"valid-jsdoc": 0,
+			// Starting with ESLint v8, it needs to be disabled as it currently can't be supported
+			// See: https://github.com/eslint/eslint/issues/14745
+			"jsdoc/check-examples": 0,
+			"jsdoc/check-param-names": 2,
+			"jsdoc/check-tag-names": 2,
+			"jsdoc/check-types": 2,
+			"jsdoc/no-undefined-types": 0,
+			"jsdoc/require-description": 0,
+			"jsdoc/require-description-complete-sentence": 0,
+			"jsdoc/require-example": 0,
+			"jsdoc/require-hyphen-before-param-description": 0,
+			"jsdoc/require-param": 2,
+			"jsdoc/require-param-description": 0,
+			"jsdoc/require-param-name": 2,
+			"jsdoc/require-param-type": 2,
+			"jsdoc/require-returns": 0,
+			"jsdoc/require-returns-description": 0,
+			"jsdoc/require-returns-type": 2,
+
+			"jsdoc/tag-lines": [
+				2,
+				"any",
+				{
+					startLines: 1,
+				},
+			],
+
+			"jsdoc/valid-types": 0,
+		},
+	},
+	{
+		files: ["**/*.cjs"],
+
+		languageOptions: {
+			ecmaVersion: 2022,
+			sourceType: "script",
+		},
+	},
+	{
+		files: [
+			"lib/client/**",
+			"test/integration/*/webapp/**/*.js",
+			"test/integration/*/src/**/*.js",
+			"test/integration/*/test/**/*.js",
+		],
+
+		languageOptions: {
+			globals: {
+				...globals.browser,
+				sap: "readonly",
+			},
+		},
+	},
+];

package.json

@@ -106,6 +106,8 @@
 	"devDependencies": {
 		"@babel/core": "^7.24.9",
 		"@babel/preset-env": "^7.24.8",
+		"@eslint/eslintrc": "^3.1.0",
+		"@eslint/js": "^9.8.0",
 		"@istanbuljs/esm-loader-hook": "^0.2.0",
 		"@openui5/sap.ui.core": "^1.126.1",
 		"ava": "^6.1.3",
@@ -118,6 +120,7 @@
 		"esmock": "^2.6.7",
 		"execa": "^9.3.0",
 		"fast-glob": "^3.3.2",
+		"globals": "^15.8.0",
 		"istanbul-lib-coverage": "^3.2.2",
 		"karma": "^6.4.3",
 		"karma-chrome-launcher": "^3.2.0",