@codemein/eslint-config-tesco/index.js

Tesco's ESLint config, following Tesco's styleguide

/**
 * @module Eslint base configuration
 */
/**
 * Base Eslint configuration for JS which extends the airbnb-base one.
 */
module.exports = {
  env: {
    jest: true,
    node: true,
  },
  extends: ['airbnb-base'],
  parser: 'babel-eslint',
  plugins: ['sort-class-members'],
  rules: {
    'class-methods-use-this': 0,
    'function-paren-newline': ['error', 'consistent'],
    'implicit-arrow-linebreak': 0,
    'import/no-extraneous-dependencies': 0,
    'import/order': ['error', { groups: ['builtin', 'external', 'internal', 'parent', 'sibling', 'index'] }],
    'jsx-a11y/anchor-is-valid': 0,
    'lines-around-comment': [
      'error',
      {
        beforeBlockComment: true,
        allowBlockStart: true,
        allowClassStart: false,
        allowObjectStart: true,
        allowArrayStart: true,
      },
    ],
    'lines-between-class-members': ['error', 'always', { exceptAfterSingleLine: true }],
    'max-len': [2, 120, 4],
    'no-multiple-empty-lines': ['error', { max: 1 }],
    'no-nested-ternary': 0,
    'no-param-reassign': ['error', { props: false }],
    'no-underscore-dangle': 0,
    'object-curly-newline': [
      'error',
      {
        ObjectExpression: { consistent: true },
        ObjectPattern: { consistent: true },
        ImportDeclaration: { consistent: true },
        ExportDeclaration: { consistent: true },
      },
    ],
    'one-var': ['error', { initialized: 'never' }],
    'one-var-declaration-per-line': ['error', 'initializations'],
    'padding-line-between-statements': [
      'error',
      { blankLine: 'any', prev: '*', next: '*' },
      { blankLine: 'always', prev: 'multiline-block-like', next: '*' },
      { blankLine: 'always', prev: '*', next: 'multiline-block-like' },
      { blankLine: 'always', prev: 'multiline-expression', next: '*' },
      { blankLine: 'always', prev: '*', next: 'multiline-expression' },
      { blankLine: 'always', prev: 'directive', next: '*' },
      { blankLine: 'always', prev: '*', next: 'directive' },
    ],
    'sort-class-members/sort-class-members': [
      2,
      {
        accessorPairPositioning: 'getThenSet',
        groups: {
          'static-properties': [{ static: true, type: 'property', sort: 'alphabetical' }],
          'static-private-properties': [{ name: '/_.+/', static: true, type: 'property', sort: 'alphabetical' }],
          'static-methods': [{ static: true, type: 'method', sort: 'alphabetical' }],
          'static-private-methods': [{ name: '/_.+/', static: true, type: 'method', sort: 'alphabetical' }],
          properties: [{ type: 'property', sort: 'alphabetical' }],
          'private-properties': [{ name: '/_.+/', type: 'property', sort: 'alphabetical' }],
          methods: [{ type: 'method', sort: 'alphabetical' }],
          'private-methods': [{ name: '/_.+/', type: 'method', sort: 'alphabetical' }],
        },
        order: [
          '[static-properties]',
          '[static-private-properties]',
          '[static-methods]',
          '[static-private-methods]',
          '[properties]',
          '[private-properties]',
          'constructor',
          'getters',
          'setters',
          '[methods]',
          '[private-methods]',
        ],
      },
    ],
    'valid-jsdoc': ['warn'],
    'require-jsdoc': [
      'warn',
      {
        require: {
          FunctionDeclaration: true,
          MethodDefinition: true,
          ClassDeclaration: true,
          ArrowFunctionExpression: true,
        },
      },
    ],
  },
};