.eslintrc

{
  "env": {
    "browser": true,
    "jest": true
  },
  "extends": [
    "airbnb-base",
    "plugin:flowtype/recommended"
  ],
  "parser": "babel-eslint",
  "plugins": [
    "flowtype",
    "import",
    "jest"
  ],
  "settings": {
    "flowtype": {
      "onlyFilesWithFlowAnnotation": true
    },
    "import/resolver": {
      "webpack": {
        "config": "config/webpack/webpack.config.js"
      }
    }
  },
  "rules": {
    "arrow-body-style": ["warn", "as-needed"],
    "brace-style": ["error", "stroustrup"],
    "comma-dangle": ["error", "only-multiline"],
    "function-paren-newline": ["error", "consistent"],
    "indent": [
      "error",
      2,
      {
        "FunctionDeclaration": {
          "body": 1,
          "parameters": 1
        },
        "FunctionExpression": {
          "body": 1,
          "parameters": 1
        },
        "SwitchCase": 1
      }
    ],
    "lines-between-class-members": "off",
    "max-classes-per-file": "off",
    "max-len": [
      "error",
      {
        "code": 120,
        "tabWidth": 2,
        "ignoreUrls": true,
        "ignoreComments": false
      }
    ],
    "new-cap": [
      "error",
      {
        "capIsNewExceptions": [
          "Axios",
          "Immutable.List",
          "Immutable.OrderedList",
          "Immutable.Map",
          "Immutable.OrderedMap",
          "Immutable.Set",
          "Immutable.OrderedSet",
          "List",
          "OrderedList",
          "Map",
          "OrderedMap",
          "Seq",
          "Set",
          "OrderedSet",
          "SortableContainer",
          "SortableElement"
        ]
      }
    ],
    "padded-blocks": "off",
    "prefer-destructuring": "warn",
    "space-before-function-paren": [
      "error",
      {
        "anonymous": "never",
        "named": "never",
        "asyncArrow": "always"
      }
    ],

    "flowtype/define-flow-type": "error",
    "flowtype/space-after-type-colon": ["error", "never"],
    "flowtype/space-before-type-colon": "off",
    "flowtype/no-types-missing-file-annotation": "warn",

    "import/no-extraneous-dependencies": [
      "error",
      {
        "devDependencies": [
          "config/**",
          "src/utils/testing/**",
          "**/*.test.js"
        ]
      }
    ],
    "import/order": [
      "warn",
      {
        "groups": ["builtin", "external", "internal", ["parent", "sibling"], "index"]
      }
    ],
    "import/prefer-default-export": "warn",

    "jest/no-disabled-tests": "error",
    "jest/no-focused-tests": "error",
    "jest/no-identical-title": "error",
    "jest/prefer-to-have-length": "warn",
    "jest/valid-expect": "error"
  }
}