config/eslint.js

   1 const globals = require("globals");
   2 const js = require("@eslint/js");
   3 const erb = require("eslint-plugin-erb");
   4 const stylisticJs = require("@stylistic/eslint-plugin-js");
   5
   6 module.exports = [
   7   js.configs.recommended,
   8   erb.configs.recommended,
   9   {
  10     ignores: [
  11       "app/assets/javascripts/i18n/",
  12       "coverage/assets/",
  13       "public/assets/",
  14       "vendor/"
  15     ]
  16   },
  17   {
  18     plugins: {
  19       "@stylistic": stylisticJs
  20     },
  21     languageOptions: {
  22       ecmaVersion: 2021,
  23       sourceType: "script",
  24       globals: {
  25         ...globals.browser,
  26         ...globals.jquery,
  27         Cookies: "readonly",
  28         I18n: "readonly",
  29         L: "readonly",
  30         Matomo: "readonly",
  31         OSM: "writable",
  32         Turbo: "readonly",
  33         updateLinks: "readonly"
  34       }
  35     },
  36     linterOptions: {
  37       // The "unused disable directive" is set to "warn" by default.
  38       // For the ERB plugin to work correctly, you must disable
  39       // this directive to avoid issues described here
  40       // https://github.com/eslint/eslint/discussions/18114
  41       // If you're using the CLI, you might also use the following flag:
  42       // --report-unused-disable-directives-severity=off
  43       reportUnusedDisableDirectives: "off"
  44     },
  45     rules: {
  46       "@stylistic/array-bracket-newline": ["error", "consistent"],
  47       "@stylistic/array-bracket-spacing": "error",
  48       "@stylistic/block-spacing": "error",
  49       "@stylistic/brace-style": ["error", "1tbs", { allowSingleLine: true }],
  50       "@stylistic/comma-dangle": "error",
  51       "@stylistic/comma-spacing": "error",
  52       "@stylistic/comma-style": "error",
  53       "@stylistic/computed-property-spacing": "error",
  54       "@stylistic/dot-location": ["error", "property"],
  55       "@stylistic/eol-last": "error",
  56       "@stylistic/func-call-spacing": "error",
  57       "@stylistic/indent": ["error", 2, {
  58         CallExpression: { arguments: "first" },
  59         FunctionDeclaration: { parameters: "first" },
  60         FunctionExpression: { parameters: "first" },
  61         SwitchCase: 1,
  62         VariableDeclarator: "first"
  63       }],
  64       "@stylistic/key-spacing": "error",
  65       "@stylistic/keyword-spacing": "error",
  66       "@stylistic/max-statements-per-line": "error",
  67       "@stylistic/no-floating-decimal": "error",
  68       "@stylistic/no-mixed-operators": "error",
  69       "@stylistic/no-multi-spaces": "error",
  70       "@stylistic/no-multiple-empty-lines": "error",
  71       "@stylistic/no-trailing-spaces": "error",
  72       "@stylistic/no-whitespace-before-property": "error",
  73       "@stylistic/object-curly-newline": ["error", { consistent: true }],
  74       "@stylistic/object-curly-spacing": ["error", "always"],
  75       "@stylistic/object-property-newline": ["error", { allowAllPropertiesOnSameLine: true }],
  76       "@stylistic/one-var-declaration-per-line": "error",
  77       "@stylistic/operator-linebreak": ["error", "after"],
  78       "@stylistic/padded-blocks": ["error", "never"],
  79       "@stylistic/quote-props": ["error", "consistent-as-needed", { keywords: true, numbers: true }],
  80       "@stylistic/quotes": ["error", "double"],
  81       "@stylistic/semi": ["error", "always"],
  82       "@stylistic/semi-spacing": "error",
  83       "@stylistic/semi-style": "error",
  84       "@stylistic/space-before-blocks": "error",
  85       "@stylistic/space-before-function-paren": ["error", { named: "never" }],
  86       "@stylistic/space-in-parens": "error",
  87       "@stylistic/space-infix-ops": "error",
  88       "@stylistic/space-unary-ops": "error",
  89       "@stylistic/switch-colon-spacing": "error",
  90       "@stylistic/wrap-iife": "error",
  91       "@stylistic/wrap-regex": "error",
  92
  93       "accessor-pairs": "error",
  94       "array-callback-return": "error",
  95       "block-scoped-var": "error",
  96       "curly": ["error", "multi-line", "consistent"],
  97       "dot-notation": "error",
  98       "eqeqeq": ["error", "smart"],
  99       "no-alert": "error",
 100       "no-array-constructor": "error",
 101       "no-caller": "error",
 102       "no-console": "warn",
 103       "no-div-regex": "error",
 104       "no-else-return": ["error", { allowElseIf: false }],
 105       "no-eq-null": "error",
 106       "no-eval": "error",
 107       "no-extend-native": "error",
 108       "no-extra-bind": "error",
 109       "no-extra-label": "error",
 110       "no-implicit-coercion": "warn",
 111       "no-implicit-globals": "error",
 112       "no-implied-eval": "error",
 113       "no-invalid-this": "error",
 114       "no-iterator": "error",
 115       "no-label-var": "error",
 116       "no-labels": "error",
 117       "no-lone-blocks": "error",
 118       "no-lonely-if": "error",
 119       "no-loop-func": "error",
 120       "no-multi-str": "error",
 121       "no-negated-condition": "error",
 122       "no-nested-ternary": "error",
 123       "no-new": "error",
 124       "no-new-func": "error",
 125       "no-new-wrappers": "error",
 126       "no-object-constructor": "error",
 127       "no-octal-escape": "error",
 128       "no-param-reassign": "error",
 129       "no-proto": "error",
 130       "no-script-url": "error",
 131       "no-self-compare": "error",
 132       "no-sequences": "error",
 133       "no-throw-literal": "error",
 134       "no-undef-init": "error",
 135       "no-undefined": "error",
 136       "no-unmodified-loop-condition": "error",
 137       "no-unneeded-ternary": "error",
 138       "no-unused-expressions": "off",
 139       "no-unused-vars": ["error", { caughtErrors: "none" }],
 140       "no-use-before-define": ["error", { functions: false }],
 141       "no-useless-call": "error",
 142       "no-useless-concat": "error",
 143       "no-useless-return": "error",
 144       "no-var": "error",
 145       "no-void": "error",
 146       "no-warning-comments": "warn",
 147       "operator-assignment": "error",
 148       "prefer-const": "error",
 149       "prefer-object-spread": "error",
 150       "radix": ["error", "always"],
 151       "yoda": "error"
 152     }
 153   },
 154   {
 155     // Additional configuration for test files
 156     files: ["test/**/*.js"],
 157     languageOptions: {
 158       globals: {
 159         ...globals.mocha,
 160         expect: "readonly",
 161         assert: "readonly",
 162         should: "readonly"
 163       }
 164     }
 165   },
 166   {
 167     files: ["config/eslint.js"],
 168     languageOptions: {
 169       ecmaVersion: 2019,
 170       sourceType: "commonjs",
 171       globals: {
 172         ...globals.commonjs
 173       }
 174     },
 175     rules: {
 176       "sort-keys": ["error", "asc", { minKeys: 5 }]
 177     }
 178   }
 179 ];