overleaf/services/web/.eslintrc

{
  "extends": [
    "standard",
    "standard-react",
    "prettier",
    "prettier/react",
    "prettier/standard",
    "plugin:jsx-a11y/recommended"
  ],
  "plugins": [
    "jsx-a11y",
    "mocha",
    "chai-expect",
    "chai-friendly"
  ],
  "env": {
    "browser": true,
    "mocha": true
  },
  "globals": {
    "expect": true,
    "define": true,
    "$": true,
    "angular": true,
    // Injected in layout.pug
    "user_id": true,
    "ace": true
  },
  "settings": {
    // Tell eslint-plugin-react to detect which version of React we are using
    "react": {
      "version": "detect"
    }
  },
  "rules": {
    "max-len": ["error", {
      "ignoreUrls": true,
      // Ignore long describe/it test blocks, long import/require statements
      "ignorePattern": "(^\\s*(it|describe)\\s*\\(['\"]|^import\\s*.*\\s*from\\s*['\"]|^.*\\s*=\\s*require\\(['\"])"
    }],

    // Fix conflict between prettier & standard by overriding to prefer
    // double quotes
    "jsx-quotes": ["error", "prefer-double"],

    // Override weird behaviour of jsx-a11y label-has-for (says labels must be
    // nested *and* have for/id attributes)
    "jsx-a11y/label-has-for": [
      "error",
      {
        "required": {
          "some": [
            "nesting",
            "id"
          ]
        }
      }
    ],

    // Add some mocha specific rules
    "mocha/handle-done-callback": "error",
    "mocha/no-exclusive-tests": "error",
    "mocha/no-global-tests": "error",
    "mocha/no-identical-title": "error",
    "mocha/no-nested-tests": "error",
    "mocha/no-pending-tests": "error",
    "mocha/no-skipped-tests": "error",

    // Add some chai specific rules
    "chai-expect/missing-assertion": "error",
    "chai-expect/terminating-properties": "error",
    // Swap the no-unused-expressions rule with a more chai-friendly one
    "no-unused-expressions": 0,
    "chai-friendly/no-unused-expressions": "error"
  }
}