eslint-config-minsug/index.js

Minsug shareable ESLint config (v9 Flat)

import js from "@eslint/js";
import globals from "globals";
import tseslint from "typescript-eslint";
import reactHooks from "eslint-plugin-react-hooks";
import react from "eslint-plugin-react";
import jsxA11y from "eslint-plugin-jsx-a11y";
import importPlugin from "eslint-plugin-import";
import unusedImports from "eslint-plugin-unused-imports";
import simpleImportSort from "eslint-plugin-simple-import-sort";
import prettier from "eslint-plugin-prettier";
import { defineConfig, globalIgnores } from "eslint/config";

const minsugConfig = defineConfig([
  globalIgnores(["dist"]),
  {
    extends: [
      js.configs.recommended,
      tseslint.configs.recommendedTypeChecked,
      reactHooks.configs["recommended-latest"],
      jsxA11y.flatConfigs.recommended,
    ],

    languageOptions: {
      ecmaVersion: 2020,
      globals: globals.browser,
      parserOptions: {
        projectService: true,
        tsconfigRootDir: import.meta.dirname,
      },
    },

    plugins: {
      react,
      import: importPlugin,
      "unused-imports": unusedImports,
      "simple-import-sort": simpleImportSort,
      prettier,
    },

    rules: {
      // ===== React/JSX =====
      "react/react-in-jsx-scope": "off", // React 17+ 자동 JSX 트랜스폼
      "react/jsx-props-no-spreading": "off",
      "react/require-default-props": "off",

      // ===== Hooks =====
      // preset에 포함되지만 강하게 enforce
      "react-hooks/exhaustive-deps": "error",

      // ===== TS 우선 룰 구성 =====
      // 기본 no-unused-vars는 TS 버전으로 대체
      "no-unused-vars": "off",
      "@typescript-eslint/no-unused-vars": [
        "error",
        {
          vars: "all",
          varsIgnorePattern: "^_",
          args: "after-used",
          argsIgnorePattern: "^_",
          ignoreRestSiblings: true,
        },
      ],
      "@typescript-eslint/consistent-type-imports": [
        "error",
        { fixStyle: "inline-type-imports" },
      ],
      "@typescript-eslint/consistent-type-assertions": [
        "error",
        { assertionStyle: "never" },
      ],
      "@typescript-eslint/switch-exhaustiveness-check": "error",

      // ===== Import 관리 =====
      // unused-imports로 실제 미사용 import 제거/신고
      "unused-imports/no-unused-imports": "error",
      "unused-imports/no-unused-vars": [
        "warn",
        {
          vars: "all",
          varsIgnorePattern: "^_",
          args: "after-used",
          argsIgnorePattern: "^_",
        },
      ],
      "import/no-duplicates": ["error", { "prefer-inline": true }],
      "simple-import-sort/imports": "error",
      "simple-import-sort/exports": "error",
      "import/no-extraneous-dependencies": "off",
      "import/prefer-default-export": "off",
      "import/extensions": "off",

      // ===== 기타 팀 컨벤션 =====
      "no-console": ["error", { allow: ["warn", "error"] }],

      // ===== Prettier 연동 =====
      // flat-config에서는 plugin 기반으로 직접 켭니다.
      "prettier/prettier": "error",
    },
  },
]);

export default minsugConfig;