index.js

const bestPractices = require.resolve('./rules/best-practices');
const errors = require.resolve('./rules/errors');
const es6 = require.resolve('./rules/es6');
const node = require.resolve('./rules/node');
const style = require.resolve('./rules/style');
const variables = require.resolve('./rules/variables');
const prettier = require.resolve('./rules/prettier');
const jestRules = require.resolve('./rules/jest');
const unicornRules = require.resolve('./rules/unicorn');
const importRules = require.resolve('./rules/import');

module.exports = {
  extends: [
    'eslint-config-airbnb-base',
    'eslint:recommended',
    'plugin:jest/recommended',
    'plugin:unicorn/recommended',
    'eslint-config-prettier',
    bestPractices,
    errors,
    es6,
    node,
    style,
    variables,
    prettier,
    jestRules,
    unicornRules,
    importRules,
  ],
  plugins: ['jest', 'prettier'],
  parserOptions: {
    ecmaVersion: 2020,
    sourceType: 'module',
  },
  env: {
    node: true,
  },
  rules: {
    strict: 'error',
  },
  overrides: [
    {
      files: ['**/*.spec.js', '**/*.test.js', '**/tests-*.js', '**/*.spec.ts', '**/*.test.ts', '**/tests-*.ts'],
      rules: {
        'array-bracket-newline': 'off',
        'array-element-newline': 'off',
        'id-length': 'off',
        'max-lines': 'off',
        'max-lines-per-function': 'off',
        'max-nested-callbacks': 'off',
        'max-statements': 'off',
        'newline-after-var': 'off',
        'no-process-env': 'off',
        'no-undefined': 'off',
        'object-curly-newline': 'off',
        'padding-line-between-statements': [
          'error',
          {blankLine: 'always', prev: '*', next: 'return'},
          {blankLine: 'any', prev: ['const', 'let', 'var'], next: '*'},
          {blankLine: 'any', prev: ['const', 'let', 'var'], next: ['const', 'let', 'var']},
          {blankLine: 'always', prev: 'directive', next: '*'},
          {blankLine: 'any', prev: ['for', 'do', 'while'], next: '*'},
          {blankLine: 'any', prev: '*', next: 'for'},
          {blankLine: 'any', prev: 'import', next: '*'},
          {blankLine: 'any', prev: 'import', next: 'import'},
          {blankLine: 'any', prev: 'if', next: '*'},
          {blankLine: 'any', prev: 'function', next: '*'},
          {blankLine: 'any', prev: '*', next: 'function'},
          {blankLine: 'any', prev: '*', next: 'export'},
          {blankLine: 'any', prev: '*', next: 'cjs-export'},
          {blankLine: 'any', prev: 'cjs-import', next: '*'},
          {blankLine: 'any', prev: 'cjs-import', next: 'cjs-import'},
        ],
        'unicorn/prefer-prototype-methods': 'off',
      },
    },
  ],
};