Eslint front end setup

.eslintignore

coverage
build
dist

.eslintrc.js

module.exports = {
  parser: 'babel-eslint',
  parserOptions: {
    ecmaVersion: 8,
    sourceType: 'module',
    ecmaFeatures: {
      jsx: true,
    },
  },
  plugins: ['import', 'jsx-a11y', 'react', 'redux-saga', 'jest'],
  extends: [
    'plugin:jest/recommended',
    'plugin:redux-saga/recommended',
    'airbnb',
    'prettier',
    'prettier/react',
  ],
  env: {
    es6: true,
    browser: true,
    node: true,
    jest: true,
  },
  settings: {
    'import/resolver': {
      node: {
        extensions: ['.js', '.ts', '.tsx'],
      },
    },
  },
  rules: {
    // Be able to make only one named export
    'import/prefer-default-export': 'off',

    // Don't alow ".jsx"
    'react/jsx-filename-extension': ['error', { extensions: ['.js'] }],

    // Allow use before definition
    'no-use-before-define': 'off',

    // Airbnb enforces input nesting and id linking, this is too strict
    // These following two rules make only one strategy required
    'jsx-a11y/label-has-for': [
      'error',
      {
        components: [],
        required: {
          some: ['nesting', 'id'],
        },
        allowChildren: false,
      },
    ],
    'jsx-a11y/label-has-associated-control': [
      'error',
      {
        labelComponents: [],
        labelAttributes: [],
        controlComponents: [],
        depth: 25,
      },
    ],

    // Airbnb makes this an error
    // Make it a warning temporarily while we refactor the code
    'react/destructuring-assignment': ['warn', 'always'],
  },
};