eslint.config.mjs

// @ts-check

import jsEslint from "@eslint/js";
import eslintConfigPrettier from "eslint-config-prettier";
import eslintPluginImportX from "eslint-plugin-import-x";
import * as tsEslint from "typescript-eslint";

export default tsEslint.config(
  jsEslint.configs.recommended,
  eslintPluginImportX.flatConfigs.recommended,
  eslintPluginImportX.flatConfigs.typescript,
  ...tsEslint.configs.strictTypeChecked,
  ...tsEslint.configs.stylisticTypeChecked,
  {
    languageOptions: {
      parserOptions: {
        projectService: {
          allowDefaultProject: ["*.js", "*.mjs"],
        },
        tsconfigRootDir: import.meta.dirname,
      },
    },
  },
  {
    ignores: [
      "**/coverage",
      "**/dist",
      "**/esbuild.config.mjs",
      "**/lib/__fixtures__/**/*.ts",
      "**/jest.config.mjs",
      "**/smoke-tests",
    ],
  },
  {
    rules: {
      "@typescript-eslint/await-thenable": "warn",
      "@typescript-eslint/explicit-function-return-type": "warn",
      "@typescript-eslint/no-floating-promises": [
        "warn",
        { ignoreIIFE: true, ignoreVoid: false },
      ],
      "@typescript-eslint/no-unused-vars": [
        "warn",
        { argsIgnorePattern: "^_" },
      ],
      "@typescript-eslint/restrict-template-expressions": [
        "error",
        {
          allowNever: true,
          allowNumber: true,
        },
      ],
      "import-x/no-named-as-default-member": "off",
      "import-x/no-unresolved": "off",
      "import-x/order": [
        "warn",
        { "newlines-between": "always", alphabetize: { order: "asc" } },
      ],
      "no-console": ["warn"],
    },
  },
  {
    files: ["**/*.spec.ts"],
    rules: {
      "@typescript-eslint/explicit-function-return-type": "off",
      "@typescript-eslint/no-non-null-assertion": "off",
      "@typescript-eslint/no-unsafe-argument": "off",
      "@typescript-eslint/no-unsafe-assignment": "off",
      "@typescript-eslint/no-unsafe-member-access": "off",
    },
  },
  {
    files: ["**/*.js", "**/*.mjs"],
    ...tsEslint.configs.disableTypeChecked,
  },
  eslintConfigPrettier,
);