Hello all, I've been bashing my head against the wall on this since last night. It's only happening in my Next.js app, not any other React/TypeScript non-Next.js apps.

When I commit changes, Husky's pre-commit fails on lint with the following, treating files as directories. Running pnpm lint outside of the pre-commit works just fine.

Error: ENOTDIR: not a directory, open '<app-directory>/package.json/tsconfig.json'

Here are the relevant files:

tsconfig.json

{
  "compilerOptions": {
    "plugins": [
      {
        "name": "next"
      }
    ],
    "paths": {
      "@/*": ["./src/*"]
    }
  },
  "include": ["next-env.d.ts", "**/*.ts", "**/*.tsx", ".next/types/**/*.ts"],
  "exclude": ["node_modules"]
}

.eslintrc.js

import { dirname } from 'path';
import { fileURLToPath } from 'url';
import { FlatCompat } from '@eslint/eslintrc';

const __filename = fileURLToPath(import.meta.url);
const __dirname = dirname(__filename);

const compat = new FlatCompat({
  baseDirectory: __dirname,
});

const eslintConfig = [
  ...compat.extends(
    'next/core-web-vitals',
    'next/typescript',
    'prettier',
    'plugin:prettier/recommended',
    'plugin:@typescript-eslint/recommended',
  ),
  {
    rules: {
      '@typescript-eslint/no-explicit-any': 'error',
      '@typescript-eslint/no-non-null-assertion': 'off',
      '@typescript-eslint/no-var-requires': 'off',
      'no-console': 2,
    },
  },
];

export default eslintConfig;

pre-commit

pnpm lint-staged

package.json

{
  "scripts": {
    "preinstall": "npx only-allow pnpm",
    "prepare": "husky",
    "format": "prettier --write .",
    "lint": "next lint"
  },
  "lint-staged": {
    "*/**/*.{js,jsx,ts,tsx,json}": [
      "pnpm format",
      "pnpm lint"
    ]
  },
}