eslint.config.mjs

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 [...compat.extends("eslint:recommended"), {
    languageOptions: {
        globals: {
            ARGV: "readonly",
            global: "readonly",
            Debugger: "readonly",
            GIRepositoryGType: "readonly",
            globalThis: "readonly",
            imports: "readonly",
            Intl: "readonly",
            log: "readonly",
            logError: "readonly",
            pkg: "readonly",
            print: "readonly",
            printerr: "readonly",
            window: "readonly",
            TextEncoder: "readonly",
            TextDecoder: "readonly",
            console: "readonly",
            setTimeout: "readonly",
            setInterval: "readonly",
            clearTimeout: "readonly",
            clearInterval: "readonly",
        },

        ecmaVersion: 2022,
        sourceType: "module",
    },

    rules: {
        "array-callback-return": "error",
        "no-await-in-loop": "error",
        "no-constant-binary-expression": "error",
        "no-constructor-return": "error",
        "no-new-native-nonconstructor": "error",
        "no-promise-executor-return": "error",
        "no-self-compare": "error",
        "no-template-curly-in-string": "error",
        "no-unmodified-loop-condition": "error",
        "no-unreachable-loop": "error",
        "no-unused-private-class-members": "error",

        "no-use-before-define": ["error", {
            functions: false,
            classes: true,
            variables: true,
            allowNamedExports: true,
        }],

        "block-scoped-var": "error",
        complexity: "warn",
        "consistent-return": "error",
        "default-param-last": "error",
        eqeqeq: "error",
        "no-array-constructor": "error",
        "no-caller": "error",
        "no-extend-native": "error",
        "no-extra-bind": "error",
        "no-extra-label": "error",
        "no-iterator": "error",
        "no-label-var": "error",
        "no-loop-func": "error",
        "no-multi-assign": "warn",
        "no-new-object": "error",
        "no-new-wrappers": "error",
        "no-proto": "error",
        "no-shadow": "warn",

        "no-unused-vars": ["error", {
            varsIgnorePattern: "^_",
            argsIgnorePattern: "^_",
        }],

        "no-var": "warn",
        "unicode-bom": "error",

        "no-restricted-globals": ["error", {
            name: "Debugger",
            message: "Internal use only",
        }, {
            name: "GIRepositoryGType",
            message: "Internal use only",
        }, {
            name: "log",
            message: "Use console.log()",
        }, {
            name: "logError",
            message: "Use console.warn() or console.error()",
        }],

        "no-restricted-properties": ["error", {
            object: "imports",
            property: "format",
            message: "Use template strings",
        }, {
            object: "pkg",
            property: "initFormat",
            message: "Use template strings",
        }, {
            object: "Lang",
            property: "copyProperties",
            message: "Use Object.assign()",
        }, {
            object: "Lang",
            property: "bind",
            message: "Use arrow notation or Function.prototype.bind()",
        }, {
            object: "Lang",
            property: "Class",
            message: "Use ES6 classes",
        }],

        "no-restricted-syntax": ["error", {
            selector: "MethodDefinition[key.name=\"_init\"] CallExpression[arguments.length<=1][callee.object.type=\"Super\"][callee.property.name=\"_init\"]",
            message: "Use constructor() and super()",
        }],
    },
}];