.eslintrc.js

const path = require('path');
const rulesDirPlugin = require('eslint-plugin-rulesdir');
rulesDirPlugin.RULES_DIR = path.resolve(
  __dirname,
  './scripts/eslint-rules/custom',
);

module.exports = {
  parser: '@typescript-eslint/parser',
  extends: [
    'eslint:recommended',
    'prettier',
    'plugin:@typescript-eslint/recommended',
    'plugin:react/recommended',
    'plugin:jsx-a11y/recommended',
    'plugin:jest/recommended',
    'plugin:jest/style',
    'plugin:you-dont-need-lodash-underscore/compatible',
  ],
  plugins: ['import', 'react-hooks', 'jest-dom', 'testing-library', 'rulesdir'],
  parserOptions: {
    project: './tsconfig.json',
    sourceType: 'module',
  },
  env: {
    jest: true,
    browser: true,
    node: true,
  },
  settings: {
    'import/extensions': ['.js', '.ts', '.tsx'],
    react: {
      version: 'detect',
    },
  },
  rules: {
    'no-console': 'warn',
    'react/prop-types': 'off',
    'react/prefer-stateless-function': ['off', { ignorePureComponents: true }],
    'react/jsx-filename-extension': ['off', { extensions: ['.js', '.tsx'] }],
    'react/forbid-prop-types': 'off',
    'react/destructuring-assignment': 'off',
    'react/jsx-one-expression-per-line': 'off',
    'react/sort-comp': 'off',
    'react/jsx-wrap-multilines': 'off',
    'function-paren-newline': 'off',
    'react/button-has-type': 'error',
    'react/jsx-no-target-blank': 'error',
    'react/jsx-no-bind': ['error', { allowArrowFunctions: true }],
    'react/no-access-state-in-setstate': 'error',
    '@typescript-eslint/explicit-function-return-type': 'off',
    '@typescript-eslint/explicit-member-accessibility': 'off',
    '@typescript-eslint/explicit-module-boundary-types': 'off',
    '@typescript-eslint/ban-types': 'off',
    'react/react-in-jsx-scope': 'off',
    'react/no-children-prop': 'off',
    '@typescript-eslint/no-unused-vars': [
      'error',
      {
        vars: 'all',
        args: 'after-used',
        ignoreRestSiblings: true,
      },
    ],
    '@typescript-eslint/no-for-in-array': 'error',
    '@typescript-eslint/no-var-requires': 'off',
    '@typescript-eslint/no-use-before-define': 'off',
    '@typescript-eslint/no-non-null-assertion': 'error',
    '@typescript-eslint/no-empty-function': 'off',
    'react-hooks/rules-of-hooks': 'error',
    'react-hooks/exhaustive-deps': 'warn',
    'import/named': 'error',
    'import/no-default-export': 'error',
    'import/no-extraneous-dependencies': 'error',
    'react/jsx-handler-names': 'error',
    'rulesdir/emotion-in-function': 'error',
  },
  overrides: [
    // allow specific rules in example files so there are no eslint-disable comments in code playgrounds
    {
      files: ['**/examples/**/*'],
      rules: {
        'jsx-a11y/no-autofocus': 'off',
      },
    },
    {
      files: ['**/*.stories.*'],
      rules: {
        '@typescript-eslint/no-object-literal-type-assertion': 'off',
        'import/no-default-export': 'off',
        'react/jsx-handler-names': 'off',
      },
    },
    {
      files: ['**/*.js', '**/*.jsx'],
      env: {
        node: true,
        browser: true,
      },
    },
    {
      files: [
        '**/forma-36-react-components/tools/**/*',
        '**/packages/components/**/*',
        '**/packages/**/examples/**',
      ],
      rules: {
        'import/no-default-export': 'off',
      },
    },
    {
      // Overides estraneous-dependencies for places where it's expected.
      // e.g. Example files, test files, and codemod fixtures
      files: [
        '**/*.stories.*',
        '**/*.test.*',
        '**/examples/**',
        '**/packages/**/__testfixtures__/**',
      ],
      rules: {
        'import/no-extraneous-dependencies': 'off',
      },
    },
    {
      // Example files and codemods are allowed to log to console
      files: ['**/examples/**', '**/packages/forma-36-codemod/**/*'],
      rules: {
        'no-console': 'off',
      },
    },
  ],
};