.eslintrc

{
  "parser"  : "babel-eslint",
  "plugins": [
    "flowtype",
    "fp",
    "react-native"
  ],
  "extends" : [
    "airbnb",
    "plugin:flowtype/recommended"
  ],
  "env": {
    "jest": true
  },
  "rules": {
    // Soft some rules.
    "arrow-parens": 0, // Does not work with Flow generic types.
    "global-require": 0, // Used by webpack-isomorphic-tools and React Native.
    "import/first": 0, // Este sorts by atom/sort-lines natural order.
    "import/no-duplicates": 2,
    "import/prefer-default-export": 0, // No. Actions can have just one action.
    "jsx-a11y/html-has-lang": 0, // Can't recognize the Helmet.
    "no-confusing-arrow": 0, // This rule is super confusing.
    "no-duplicate-imports": 0, // github.com/babel/eslint-plugin-babel/issues/59#issuecomment-230118848
    "no-nested-ternary": 0, // It's nice for JSX.
    "no-param-reassign": 0, // We love param reassignment. Naming is hard.
    "no-shadow": 0, // Shadowing is a nice language feature. Naming is hard.
    "react/forbid-prop-types": 0, // Este is going to use Flow types.
    "react/jsx-filename-extension": 0, // No, JSX belongs to .js files
    "react/jsx-indent": 0, // Damn. We need Yarn asap.
    "react/no-unused-prop-types": 0, // Este is going to use Flow types.
    "react/prop-types": 0, // Can't detect flowtype correctly.
    // React Native.
    "react-native/no-color-literals": 2,
    "react-native/no-unused-styles": 2,
    "react-native/split-platform-components": 2,
    // Rules for functional programming. We do not need Object.freeze.
    "fp/no-mutating-assign": 2
    // TODO: Can't be enabled now, it requires a lot of refactoring.
    // "fp/no-mutating-methods": 2,
    // "fp/no-mutation": ["error", {
    //   "commonjs": true,
    //   "allowThis": true,
    //   "exceptions": [
    //     {"property": "propTypes"}
    //   ]
    // }]
  }
}