lint-staged is not taking .eslintrc.js configuration.

[BUG]

Description

I have created 2 package.json npm scripts:

     "lint-staged:test": "lint-staged",
     "eslint:test": "eslint --fix src/global/AppRouter/AppRouter.tsx",

My configuration for lint-staged looks like;

"lint-staged": {
    "*.tsx": [
      "eslint --fix",
      "git add"
    ]
  }

By running yarn eslint:test or npm run eslint:test I’ve got no errors. Like on the image attached:

But by running second command (“lint-staged:test”) I’ve got some errors related with the file that was checked with the first command. Image shows it:

Those are my rules for eslint (.eslinrc.js file):

module.exports = {
  parser: '@typescript-eslint/parser', // Specifies the ESLint parser
  extends: ['plugin:@typescript-eslint/recommended', 'plugin:react/recommended', 'plugin:prettier/recommended'],
  parserOptions: {
    ecmaVersion: 2018, // Allows for the parsing of modern ECMAScript features
    sourceType: 'module', // Allows for the use of imports
    ecmaFeatures: {
      jsx: true, // Allows for the parsing of JSX
    },
  },
  rules: {
    // Place to specify ESLint rules. Can be used to overwrite rules specified from the extended configs
    // e.g. "@typescript-eslint/explicit-function-return-type": "off",

    // note you must disable the base rule as it can report incorrect errors
    indent: 'off',
    '@typescript-eslint/indent': ['error', 2],
  },
  settings: {
    react: {
      version: 'detect', // Tells eslint-plugin-react to automatically detect the version of React to use
    },
  },
};

which are applied for the first command but are not applied for lint-staged.

Some possible solutions?

Environment

• OS: Windows 10,
• Node.js: v10.13.0,
• lint-staged: 9.2.1,
• eslint: 5.3.0",

[emhagman]

I started running into this issue too and running the eslint --fix command by itself works but when run via lint-staged the config seems to be being dropped

[husseinbob]

I think I found the issue. my changes to .eslintrc.js also needed to be staged, by the looks of it? either way, git adding the eslintrc file stopped the error.