.eslintrc

{
  "parser": "babel-eslint",
  "extends": ["airbnb"],
  "plugins": ["react-native"],
  // Map from global var to bool specifying if it can be redefined
  "globals": {
    "__DEV__": true,
    "__dirname": false,
    "__fbBatchedBridgeConfig": false,
    "afterAll": false,
    "alert": false,
    "before": false,
    "beforeAll": false,
    "describe": false,
    "cancelAnimationFrame": false,
    "cancelIdleCallback": false,
    "clearImmediate": true,
    "clearInterval": false,
    "clearTimeout": false,
    "console": false,
    "document": false,
    "escape": false,
    "expect": false,
    "Event": false,
    "EventTarget": false,
    "exports": false,
    "fetch": false,
    "FormData": false,
    "global": false,
    "idx": false,
    "it": false,
    "jest": false,
    "Map": true,
    "module": false,
    "navigator": false,
    "process": false,
    "Promise": true,
    "requestAnimationFrame": true,
    "requestIdleCallback": true,
    "require": false,
    "Set": true,
    "setImmediate": true,
    "setInterval": false,
    "setTimeout": false,
    "window": false,
    "XMLHttpRequest": false,
    "pit": false,
    // Flow global types.
    "ReactComponent": false,
    "ReactClass": false,
    "ReactElement": false,
    "ReactPropsCheckType": false,
    "ReactPropsChainableTypeChecker": false,
    "ReactPropTypes": false,
    "SyntheticEvent": false,
    "$Either": false,
    "$All": false,
    "$Tuple": false,
    "$Supertype": false,
    "$Subtype": false,
    "$Shape": false,
    "$Diff": false,
    "$Keys": false,
    "$Enum": false,
    "$Exports": false,
    "$FlowIssue": false,
    "$FlowFixMe": false,
    "$FixMe": false
  },
  "rules": {
    "semi": 0, // Requires or disallows use of semicolons instead of ASI, because.
    "no-spaced-func": 1, // Disallows space between function identifier and application
    "class-methods-use-this": 0, // Why so picky
    "space-before-function-paren": ["error", "always"], // Function declarations with spaces rules
    "consistent-return": 0, // Flow is ment for this
    "object-shorthand": 0, // Inconsistence is worse than using ES6 features
    "func-names": 0, // Depends on context (callbacks e.g)
    "arrow-body-style": 0, // A policy on this is not yet necessary but uncomfortable
    "arrow-parens": 0, // A policy on this is not yet necessary but uncomfortable
    "global-require": 0, // Allows require to be used
    "comma-dangle": [
      "warn",
      { // Fixes airbnb issue on JSX comma dangle
        "arrays": "always-multiline",
        "objects": "always-multiline",
        "imports": "always-multiline",
        "exports": "always-multiline",
        "functions": "ignore"
      }
    ],
    "object-curly-spacing": 0, // No strict policy on object spacing
    "no-console": [
      "warn",
      { // We allow to console Warnings
        "allow": [
          "warn",
          "error"
        ]
      }
    ],
    "no-plusplus": 0, // Y not? we smart
    "no-case-declarations": 0, // We like 'em'
    "no-use-before-define": 0, // We prefer to have stylesheets at the bottom of the files
    "no-underscore-dangle": 0, // We want to allow underscores in JSON and 3rd party code
    "no-mixed-operators": 0, // No policy on this by the moment
    "prefer-spread": 0, // Array.apply has more uses than spread can cover
    "camelcase": 0, // Our preference for JSON and object field notation
    "default-case": 0, // enforces unnecessary verbosity
    "no-bitwise": 0, // an IoT company needs bitwise ops
    "no-irregular-whitespace": 1, // Not that hard
    "react/no-multi-comp": 0, // Useful to reduce number of files
    "react/prefer-stateless-function": 0, // Something we can easily see in pull requests
    "react/prop-types": 0, // By the moment, we are considering having propTypes mandatory
    "react/jsx-indent-props": 0, // Prettier's job
    "react/jsx-indent": 0, // Prettier's job
    "react/jsx-wrap-multilines": 0, // Prettier's job
    "react/jsx-filename-extension": [
      "error",
      {
        "extensions": [
          ".js",
          ".jsx"
        ]
      }
    ],
    "react/jsx-first-prop-new-line": [
      "warn",
      "multiline"
    ], // Line efficiency is not that bad
    "react/jsx-closing-bracket-location": 0, // Not a policy yet
    "react-native/no-unused-styles": 1, // Does not belong to airbnb-eslint-config
    "import/prefer-default-export": 0, // We like named exports, defaults are no better
    "import/no-unresolved": 0, // We like providesModule
    "import/extensions": 0, // No, bt could be a good asset
    "import/no-extraneous-dependencies": 0
  }
}