eslint.config.mjs

import jest from "eslint-plugin-jest";
import typescriptEslint from "@typescript-eslint/eslint-plugin";
import globals from "globals";
import tsParser from "@typescript-eslint/parser";
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/", "**/lib/", "**/node_modules/"]
}, ...compat.extends("plugin:github/recommended"), {

  files: ["src/**.ts", "__tests__/**.ts"],

  plugins: {
    jest,
    "@typescript-eslint": typescriptEslint
  },

  languageOptions: {
    globals: {
      ...globals.node,
      ...jest.environments.globals.globals
    },

    parser: tsParser,
    ecmaVersion: 9,
    sourceType: "module",

    parserOptions: {
      project: "./tsconfig.json"
    }
  },

  rules: {
    "filenames/match-regex": "off",
    "eslint-comments/no-use": "off",
    "import/no-namespace": "off",
    "import/named": "off",
    "no-unused-vars": "off",
    "sort-imports": "off",
    "i18n-text/no-en": "off",
    "@typescript-eslint/no-unused-vars": "error",

    "@typescript-eslint/explicit-member-accessibility": ["error", {
      accessibility: "no-public"
    }],

    "@typescript-eslint/no-require-imports": "error",
    "@typescript-eslint/array-type": "error",
    "@typescript-eslint/await-thenable": "error",
    "@typescript-eslint/ban-ts-comment": "error",
    camelcase: "off",
    "@typescript-eslint/consistent-type-assertions": "error",

    "@typescript-eslint/explicit-function-return-type": ["error", {
      allowExpressions: true
    }],

    "@typescript-eslint/no-array-constructor": "error",
    "@typescript-eslint/no-empty-interface": "error",
    "@typescript-eslint/no-explicit-any": "error",
    "@typescript-eslint/no-extraneous-class": "error",
    "@typescript-eslint/no-for-in-array": "error",
    "@typescript-eslint/no-inferrable-types": "error",
    "@typescript-eslint/no-misused-new": "error",
    "@typescript-eslint/no-namespace": "error",
    "@typescript-eslint/no-non-null-assertion": "warn",
    "@typescript-eslint/no-unnecessary-qualifier": "error",
    "@typescript-eslint/no-unnecessary-type-assertion": "error",
    "@typescript-eslint/no-useless-constructor": "error",
    "@typescript-eslint/no-var-requires": "error",
    "@typescript-eslint/prefer-for-of": "warn",
    "@typescript-eslint/prefer-function-type": "warn",
    "@typescript-eslint/prefer-includes": "error",
    "@typescript-eslint/prefer-string-starts-ends-with": "error",
    "@typescript-eslint/promise-function-async": "error",
    "@typescript-eslint/require-array-sort-compare": "error",
    "@typescript-eslint/restrict-plus-operands": "error",
    semi: "off",
    "@typescript-eslint/unbound-method": "error"
  },

  settings: {
    "import/resolver": {
      "typescript": {
        "alwaysTryTypes": true
      },
      "node": {
        "extensions": [".js", ".jsx", ".ts", ".tsx"],
        "moduleDirectory": ["src", "node_modules"]
      }
    }
  }
}];