.eslintrc.js

//"use strict";

module.exports = {
  // When adding items to this file please check for effects on sub-directories.
  parserOptions: {
    ecmaFeatures: { jsx: true },
    ecmaVersion: 2018,
    sourceType: "module",
  },
  env: {
    browser: true,
    commonjs: true,
    es6: true,
    mocha: true,
    node: true,
    webextensions: true,
  },
  globals: { chrome: true },
  plugins: ["json", "mocha", "prettier", "promise", "react"],
  extends: ["eslint:recommended", "prettier"],
  rules: {
    "mocha/handle-done-callback": 2,
    "mocha/max-top-level-suites": 2,
    "mocha/no-exclusive-tests": 2,
    "mocha/no-global-tests": 2,
    "mocha/no-identical-title": 2,
    "mocha/no-mocha-arrows": 2,
    "mocha/no-return-and-callback": 2,
    "mocha/no-skipped-tests": 0,
    "mocha/no-sibling-hooks": 2,
    "mocha/no-top-level-hooks": 2,
    "mocha/valid-suite-description": 2,
    "mocha/valid-test-description": 2,
    "prettier/prettier": "error",
    "promise/always-return": 2,
    "promise/catch-or-return": 2,
    "promise/param-names": 2,

    "accessor-pairs": [2, { setWithoutGet: true, getWithoutSet: false }],
    "array-bracket-spacing": [2, "never"],
    "array-callback-return": 2,
    "arrow-body-style": [2, "as-needed"],
    "arrow-parens": [2, "always"],
    "arrow-spacing": 2,
    "block-scoped-var": 2,
    "block-spacing": [2, "never"],
    "brace-style": 0,
    "callback-return": 0,
    camelcase: 0,
    "comma-dangle": [2, "only-multiline"],
    "comma-spacing": 2,
    "comma-style": 2,
    complexity: [2, { max: 20 }],
    "computed-property-spacing": [2, "never"],
    "consistent-return": 2,
    "consistent-this": [2, "use-bind"],
    "constructor-super": 2,
    curly: [2, "all"],
    "default-case": 0,
    "dot-location": [2, "property"],
    "dot-notation": 2,
    "eol-last": 2,
    eqeqeq: 2,
    "func-names": 0,
    "func-style": 0,
    "generator-star-spacing": [2, { before: false, after: false }],
    "global-require": 0,
    "guard-for-in": 2,
    "handle-callback-err": 2,
    "id-blacklist": 0,
    "id-length": 0,
    "id-match": 0,
    indent: [2, 2, { SwitchCase: 1 }],
    "init-declarations": 0,
    "jsx-quotes": [2, "prefer-double"],
    "key-spacing": [2, { beforeColon: false, afterColon: true }],
    "keyword-spacing": 2,
    "linebreak-style": [2, "unix"],
    "lines-around-comment": [
      2,
      { beforeBlockComment: false, allowObjectStart: true },
    ],
    "max-depth": [2, 4],
    "max-len": 0,
    "max-lines": 0,
    "max-nested-callbacks": [2, 4],
    "max-params": [2, 6],
    //"max-statements": [2, 50],
    "max-statements-per-line": [2, { max: 2 }],
    "multiline-ternary": 0,
    "new-cap": [2, { newIsCap: true, capIsNew: false }],
    "new-parens": 2,
    "newline-after-var": 0,
    "newline-before-return": 0,
    "newline-per-chained-call": [2, { ignoreChainWithDepth: 3 }],
    "no-alert": 2,
    "no-array-constructor": 2,
    "no-bitwise": 0,
    "no-caller": 2,
    "no-case-declarations": 2,
    "no-catch-shadow": 2,
    "no-class-assign": 2,
    "no-cond-assign": 2,
    "no-confusing-arrow": [2, { allowParens: true }],
    "no-console": 0,
    "no-const-assign": 2,
    "no-constant-condition": 2,
    "no-continue": 0,
    "no-control-regex": 2,
    "no-debugger": 2,
    "no-delete-var": 2,
    "no-div-regex": 2,
    "no-dupe-args": 2,
    "no-dupe-class-members": 2,
    "no-dupe-keys": 2,
    "no-duplicate-case": 2,
    "no-duplicate-imports": 2,
    "no-else-return": 2,
    "no-empty": 2,
    "no-empty-character-class": 2,
    "no-empty-function": 0,
    "no-empty-pattern": 2,
    "no-eq-null": 2,
    "no-eval": 2,
    "no-ex-assign": 2,
    "no-extend-native": 2,
    "no-extra-bind": 2,
    "no-extra-boolean-cast": 2,
    "no-extra-label": 2,
    "no-extra-parens": 0,
    "no-extra-semi": 2,
    "no-fallthrough": 2,
    "no-floating-decimal": 2,
    "no-func-assign": 2,
    "no-implicit-coercion": [2, { allow: ["!!"] }],
    "no-implicit-globals": 2,
    "no-implied-eval": 2,
    "no-inline-comments": 0,
    "no-inner-declarations": 2,
    "no-invalid-regexp": 2,
    "no-invalid-this": 0,
    "no-irregular-whitespace": 2,
    "no-iterator": 2,
    "no-label-var": 2,
    "no-labels": 2,
    "no-lone-blocks": 2,
    "no-lonely-if": 2,
    "no-loop-func": 2,
    "no-magic-numbers": 0,
    "no-mixed-operators": [
      2,
      {
        allowSamePrecedence: true,
        groups: [
          ["&", "|", "^", "~", "<<", ">>", ">>>"],
          ["==", "!=", "===", "!==", ">", ">=", "<", "<="],
          ["&&", "||"],
          ["in", "instanceof"],
        ],
      },
    ],
    "no-mixed-requires": 2,
    "no-mixed-spaces-and-tabs": 2,
    "no-multi-spaces": 2,
    "no-multi-str": 2,
    "no-native-reassign": 2,
    "no-negated-condition": 0,
    "no-negated-in-lhs": 2,
    "no-nested-ternary": 2,
    "no-new": 2,
    "no-new-func": 2,
    "no-new-object": 2,
    "no-new-require": 2,
    "no-new-symbol": 2,
    "no-new-wrappers": 2,
    "no-obj-calls": 2,
    "no-octal": 2,
    "no-octal-escape": 2,
    "no-param-reassign": 2,
    "no-path-concat": 2,
    "no-plusplus": 0,
    "no-process-env": 0,
    "no-process-exit": 2,
    "no-proto": 2,
    "no-prototype-builtins": 2,
    "no-redeclare": 2,
    "no-regex-spaces": 2,
    "no-restricted-globals": 2,
    "no-restricted-imports": 2,
    "no-restricted-modules": 2,
    "no-restricted-syntax": 2,
    "no-return-assign": [2, "except-parens"],
    "no-script-url": 2,
    "no-self-assign": 2,
    "no-self-compare": 2,
    "no-sequences": 2,
    "no-shadow": 0, // TODO: Change to `1`?
    "no-shadow-restricted-names": 2,
    "no-spaced-func": 2,
    "no-sparse-arrays": 2,
    "no-sync": 2,
    "no-tabs": 2,
    "no-ternary": 0,
    "no-this-before-super": 2,
    "no-throw-literal": 2,
    "no-trailing-spaces": [2, { skipBlankLines: false }],
    "no-undef": 2,
    "no-undef-init": 2,
    "no-undefined": 0,
    "no-underscore-dangle": 0,
    "no-unexpected-multiline": 2,
    "no-unmodified-loop-condition": 2,
    "no-unneeded-ternary": 2,
    "no-unreachable": 2,
    "no-unsafe-finally": 2,
    //"no-unused-expressions": 2,
    "no-unused-labels": 2,
    //"no-unused-vars": [2, {"vars": "all", "args": "none"}], // TODO enable
    "no-unused-vars": 0, // TODO delete
    "no-use-before-define": 2,
    "no-useless-call": 2,
    "no-useless-computed-key": 2,
    "no-useless-concat": 2,
    "no-useless-constructor": 2,
    "no-useless-escape": 2,
    "no-useless-rename": 2,
    "no-var": 2,
    "no-void": 2,
    "no-warning-comments": 0, // TODO: Change to `1`?
    "no-whitespace-before-property": 2,
    "no-with": 2,
    //"object-curly-newline": [2, {"multiline": true}],
    //"object-curly-spacing": [2, "never"], // TODO enable
    "object-property-newline": [2, { allowMultiplePropertiesPerLine: true }],
    "object-shorthand": [2, "always"],
    "one-var": [2, "never"],
    "one-var-declaration-per-line": [2, "initializations"],
    "operator-assignment": [2, "always"],
    //"operator-linebreak": [2, "after"],
    "padded-blocks": [2, "never"],
    "prefer-arrow-callback": ["error", { allowNamedFunctions: true }],
    "prefer-const": 0, // TODO: Change to `1`?
    "prefer-reflect": 0,
    "prefer-rest-params": 2,
    "prefer-spread": 2,
    "prefer-template": 2,
    "quote-props": [2, "as-needed"],
    //"quotes": [2, "double", "avoid-escape"], // TODO enable
    radix: [2, "always"],
    "require-jsdoc": 0,
    "require-yield": 2,
    "rest-spread-spacing": [2, "never"],
    semi: [2, "always"],
    "semi-spacing": [2, { before: false, after: true }],
    //"sort-imports": 2, // TODO enable
    "sort-vars": 2,
    "space-before-blocks": [2, "always"],
    //"space-before-function-paren": [2, {"anonymous": "never", "named": "never"}],
    "space-in-parens": [2, "never"],
    "space-infix-ops": 2,
    "space-unary-ops": 2,
    //"spaced-comment": [2, "always"], // TODO enable
    strict: 0,
    "template-curly-spacing": [2, "never"],
    "unicode-bom": [2, "never"],
    "use-isnan": 2,
    "valid-jsdoc": [
      0,
      {
        requireReturn: false,
        requireParamDescription: false,
        requireReturnDescription: false,
      },
    ],
    "valid-typeof": 2,
    "vars-on-top": 2,
    "wrap-iife": [2, "inside"],
    "wrap-regex": 0,
    "yield-star-spacing": [2, "after"],
    yoda: [2, "never"],
  },
};