Readarr/frontend/.eslintrc

{
  "parser": "babel-eslint",

  "env": {
    "browser": true,
    "commonjs": true,
    "node": true,
    "es6": true
  },

  "globals": {
    "expect": false,
    "chai": false,
    "sinon": false
  },

  "parserOptions": {
    "ecmaVersion": 6,
    "sourceType": "module",
    "ecmaFeatures": {
      "modules": true,
      "impliedStrict": true
    }
  },

  "plugins": [
    "filenames",
    "react"
  ],

  "settings": {
    "react": {
      "version": "detect"
    }
  },

  "rules": {
    "filenames/match-exported": ["error"],

    # ECMAScript 6

    "arrow-body-style": [0],
    "arrow-parens": ["error", "always"],
    "arrow-spacing": ["error", { "before": true, "after": true }],
    "constructor-super": "error",
    "generator-star-spacing": "off",
    "no-class-assign": "error",
    "no-confusing-arrow": "error",
    "no-const-assign": "error",
    "no-dupe-class-members": "error",
    "no-duplicate-imports": "error",
    "no-new-symbol": "error",
    "no-this-before-super": "error",
    "no-useless-escape": "error",
    "no-useless-computed-key": "error",
    "no-useless-constructor": "error",
    "no-var": "warn",
    "object-shorthand": ["error", "properties"],
    "prefer-arrow-callback": "error",
    "prefer-const": "warn",
    "prefer-reflect": "off",
    "prefer-rest-params": "off",
    "prefer-spread": "warn",
    "prefer-template": "error",
    "require-yield": "off",
    "template-curly-spacing": ["error", "never"],
    "yield-star-spacing": "off",

    # Possible Errors

    "comma-dangle": "error",
    "no-cond-assign": "error",
    "no-console": "off",
    "no-constant-condition": "warn",
    "no-control-regex": "error",
    "no-debugger": "off",
    "no-dupe-args": "error",
    "no-dupe-keys": "error",
    "no-duplicate-case": "error",
    "no-empty": "warn",
    "no-empty-character-class": "error",
    "no-ex-assign": "error",
    "no-extra-boolean-cast": "error",
    "no-extra-parens": ["error", "functions"],
    "no-extra-semi": "error",
    "no-func-assign": "error",
    "no-inner-declarations": "error",
    "no-invalid-regexp": "error",
    "no-irregular-whitespace": "error",
    "no-negated-in-lhs": "error",
    "no-obj-calls": "error",
    "no-regex-spaces": "error",
    "no-sparse-arrays": "error",
    "no-unexpected-multiline": "error",
    "no-unreachable": "warn",
    "no-unsafe-finally": "error",
    "use-isnan": "error",
    "valid-jsdoc": "off",
    "valid-typeof": "error",

    # Best Practices

    "accessor-pairs": "off",
    "array-callback-return": "warn",
    "block-scoped-var": "warn",
    "consistent-return": "off",
    "curly": "error",
    "default-case": "error",
    "dot-location": ["error", "property"],
    "dot-notation": "error",
    "eqeqeq": ["error", "smart"],
    "guard-for-in": "error",
    "no-alert": "warn",
    "no-caller": "error",
    "no-case-declarations": "error",
    "no-div-regex": "error",
    "no-else-return": "error",
    "no-empty-function": ["error", {"allow": ["arrowFunctions"]}],
    "no-empty-pattern": "error",
    "no-eval": "error",
    "no-extend-native": "error",
    "no-extra-bind": "error",
    "no-fallthrough": "error",
    "no-floating-decimal": "error",
    "no-implicit-coercion": ["error", {
        "boolean": false,
        "number": true,
        "string": true,
        "allow": [/* "!!", "~", "*", "+" */]
    }],
    "no-implicit-globals": "error",
    "no-implied-eval": "error",
    "no-invalid-this": "off",
    "no-iterator": "error",
    "no-labels": "error",
    "no-lone-blocks": "error",
    "no-loop-func": "error",
    "no-magic-numbers": ["off", {"ignoreArrayIndexes": true, "ignore": [0, 1] }],
    "no-multi-spaces": "error",
    "no-multi-str": "error",
    "no-native-reassign": ["error", {"exceptions": ["console"]}],
    "no-new": "off",
    "no-new-func": "error",
    "no-new-wrappers": "error",
    "no-octal": "error",
    "no-octal-escape": "error",
    "no-param-reassign": "off",
    "no-process-env": "off",
    "no-proto": "error",
    "no-redeclare": "error",
    "no-return-assign": "warn",
    "no-script-url": "error",
    "no-self-assign": "error",
    "no-self-compare": "error",
    "no-sequences": "error",
    "no-throw-literal": "error",
    "no-unmodified-loop-condition": "error",
    "no-unused-expressions": "error",
    "no-unused-labels": "error",
    "no-useless-call": "error",
    "no-useless-concat": "error",
    "no-void": "error",
    "no-warning-comments": "off",
    "no-with": "error",
    "radix": ["error", "as-needed"],
    "vars-on-top": "off",
    "wrap-iife": ["error", "inside"],
    "yoda": "error",

    # Strict Mode

    "strict": ["error", "never"],

    # Variables

    "init-declarations": ["error", "always"],
    "no-catch-shadow": "error",
    "no-delete-var": "error",
    "no-label-var": "error",
    "no-restricted-globals": "off",
    "no-shadow": "error",
    "no-shadow-restricted-names": "error",
    "no-undef": "error",
    "no-undef-init": "off",
    "no-undefined": "off",
    "no-unused-vars": ["error", { "args": "none", "ignoreRestSiblings": true }],
    "no-use-before-define": "error",

    # Node.js and CommonJS

    "callback-return": "warn",
    "global-require": "error",
    "handle-callback-err": "warn",
    "no-mixed-requires": "error",
    "no-new-require": "error",
    "no-path-concat": "error",
    "no-process-exit": "error",

    # Stylistic Issues

    "array-bracket-spacing": ["error", "never"],
    "block-spacing": ["error", "always"],
    "brace-style": ["error", "1tbs", { "allowSingleLine": false }],
    "camelcase": "off",
    "comma-spacing": ["error", {"before": false, "after": true}],
    "comma-style": ["error", "last"],
    "computed-property-spacing": ["error", "never"],
    "consistent-this": ["error", "self"],
    "eol-last": "error",
    "func-names": "off",
    "func-style": ["error", "declaration"],
    "indent": ["error", 2, {"SwitchCase": 1}],
    "key-spacing": ["error", {"beforeColon": false, "afterColon": true}],
    "keyword-spacing": ["error", { "before": true, "after": true}],
    "lines-around-comment": ["error", { "beforeBlockComment": true, "afterBlockComment": false }],
    "max-depth": ["error", {"maximum": 5}],
    "max-nested-callbacks": ["error", 4],
    "max-statements": "off",
    "max-statements-per-line": ["error", { "max": 1 }],
    "new-cap": ["error", {"capIsNewExceptions": ["$.Deferred", "DragDropContext", "DragLayer", "DragSource", "DropTarget"]}],
    "new-parens": "error",
    "newline-after-var": "off",
    "newline-before-return": "off",
    "newline-per-chained-call": "off",
    "no-array-constructor": "error",
    "no-bitwise": "error",
    "no-continue": "error",
    "no-inline-comments": "off",
    "no-lonely-if": "warn",
    "no-mixed-spaces-and-tabs": "error",
    "no-multiple-empty-lines": ["error", { "max": 1 }],
    "no-negated-condition": "warn",
    "no-nested-ternary": "error",
    "no-new-object": "error",
    "no-plusplus": "off",
    "no-restricted-syntax": "off",
    "no-spaced-func": "error",
    "no-ternary": "off",
    "no-trailing-spaces": "error",
    "no-underscore-dangle": ["error", { "allowAfterThis": true }],
    "no-unneeded-ternary": "error",
    "no-whitespace-before-property": "error",
    "object-curly-spacing": ["error", "always"],
    "one-var": ["error", "never"],
    "one-var-declaration-per-line": ["error", "always"],
    "operator-assignment": ["off", "never"],
    "operator-linebreak": ["error", "after"],
    "quote-props": ["error", "as-needed"],
    "quotes": ["error", "single"],
    "require-jsdoc": "off",
    "semi": "error",
    "semi-spacing": ["error", { "before": false, "after": true }],
    "sort-vars": "off",
    "space-before-blocks": ["error", "always"],
    "space-before-function-paren": ["error", "never"],
    "space-in-parens": "off",
    "space-infix-ops": "off",
    "space-unary-ops": "off",
    "spaced-comment": "error",
    "wrap-regex": "error",

    # React

    "react/jsx-boolean-value": [2, "always"],
    "react/jsx-uses-vars": 2,
    "react/jsx-closing-bracket-location": 2,
    "react/jsx-tag-spacing": ["error"],
    "react/jsx-curly-spacing": [2, "never"],
    "react/jsx-equals-spacing": [2, "never"],
    "react/jsx-indent-props": [2, 2],
    "react/jsx-indent": [2, 2],
    "react/jsx-key": 2,
    "react/jsx-no-bind": [2, { "allowArrowFunctions": true }],
    "react/jsx-no-duplicate-props": [2, { "ignoreCase": true }],
    "react/jsx-max-props-per-line": [2, { "maximum": 2 }],
    "react/jsx-handler-names": [2, { "eventHandlerPrefix": "(on|dispatch)", "eventHandlerPropPrefix": "on" }],
    "react/jsx-no-undef": 2,
    "react/jsx-pascal-case": 2,
    "react/jsx-uses-react": 2,
    // Explicitly disabled in case we want to enable them again
    "react/no-did-mount-set-state": 0,
    "react/no-did-update-set-state": 0,
    "react/no-direct-mutation-state": 2,
    "react/no-multi-comp": [2, { "ignoreStateless": true }],
    "react/no-unknown-property": 2,
    "react/prefer-es6-class": 2,
    "react/prop-types": 2,
    "react/react-in-jsx-scope": 2,
    "react/self-closing-comp": 2,
    "react/sort-comp": 2,
    "react/jsx-wrap-multilines": 2
  }
}