rsnext/packages/eslint-config-next/index.js

/*
 * @rushstack/eslint-patch is used to include plugins as dev
 * dependencies instead of imposing them as peer dependencies
 *
 * https://www.npmjs.com/package/@rushstack/eslint-patch
 */
require('@rushstack/eslint-patch/modern-module-resolution')

module.exports = {
  extends: [
    'plugin:react/recommended',
    'plugin:react-hooks/recommended',
    'plugin:@next/next/recommended',
  ],
  plugins: ['import', 'react', 'jsx-a11y'],
  rules: {
    'import/no-anonymous-default-export': 'warn',
    'react/react-in-jsx-scope': 'off',
    'react/prop-types': 'off',
    'jsx-a11y/alt-text': [
      'warn',
      {
        elements: ['img'],
        img: ['Image'],
      },
    ],
  },
  parser: './parser.js',
  parserOptions: {
    requireConfigFile: false,
    sourceType: 'module',
    allowImportExportEverywhere: true,
    babelOptions: {
      presets: ['next/babel'],
      caller: {
        // Eslint supports top level await when a parser for it is included. We enable the parser by default for Babel.
        supportsTopLevelAwait: true,
      },
    },
  },
  overrides: [
    {
      files: ['**/*.ts?(x)'],
      parser: '@typescript-eslint/parser',
      parserOptions: {
        sourceType: 'module',
        ecmaFeatures: {
          jsx: true,
        },
        warnOnUnsupportedTypeScriptVersion: true,
      },
    },
  ],
  settings: {
    react: {
      version: 'detect',
    },
    'import/parsers': {
      [require.resolve('@typescript-eslint/parser')]: ['.ts', '.tsx', '.d.ts'],
    },
    'import/resolver': {
      [require.resolve('eslint-import-resolver-node')]: {
        extensions: ['.js', '.jsx', '.ts', '.tsx'],
      },
      [require.resolve('eslint-import-resolver-typescript')]: {
        alwaysTryTypes: true,
      },
    },
  },
}