eslint.config.mjs

import prettier from "eslint-plugin-prettier";
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: [
      "eslint.config.mjs",
      "**/*.js", "!src/main/resources/static/js/**/*.js"
    ],
}, ...compat.extends("xo", "prettier"), {
    plugins: {
        prettier,
    },

    languageOptions: {
        globals: {
            ...globals.browser,
            ...globals.node,
            app: false,
            CONFIG: false,
            resolve: false,
        },

        ecmaVersion: 2019,
        sourceType: "commonjs",
    },

    rules: {
        "comma-dangle": ["error", "never"],
        "no-underscore-dangle": ["off"],
        "func-names": ["off"],

        "no-plusplus": ["error", {
            allowForLoopAfterthoughts: true,
        }],

        "vars-on-top": "off",
        "global-require": "off",

        "no-use-before-define": ["error", {
            functions: false,
        }],

        "linebreak-style": ["off"],

        "prettier/prettier": ["error", {
            printWidth: 80,
            singleQuote: true,
            tabWidth: 4,
            trailingComma: "none",
        }],
    },
}];