.eslintrc.json

// ESLint configuration <https://eslint.org/docs/user-guide/configuring>
{
  "extends": "@kevinoid/eslint-config/node.js",

  "rules": {
    // allow dangling underscores in identifiers
    // this is the convention used in Zlib, so we adopt it for this project
    "no-underscore-dangle": "off",

    // Allow requiring devDependencies for build and test
    "import/no-extraneous-dependencies": ["error", {
      "devDependencies": [
        "gulpfile.js",
        "test-bin/**",
        "test-lib/**",
        "test/**"
      ]
    }],

    // Allow CommonJS modules
    "unicorn/prefer-module": "off",

    // Don't prefer top-level await
    // Since top-level await is only supported in ECMAScript Modules (ESM)
    "unicorn/prefer-top-level-await": "off"
  },

  "overrides": [
    {
      "files": [
        "bin/*.js"
      ],
      "rules": {
        // Executable scripts should have a shebang
        "n/shebang": "off"
      }
    },
    {
      "files": [
        "lib/errors.js"
      ],
      "rules": {
        "comma-dangle": ["error", "only-multiline"],
        "curly": "off",
        "global-require": "off",
        "indent": "off",
        "new-cap": "off",
        "no-restricted-syntax": "off",
        "no-use-before-define": ["error", { "functions": false }],
        "nonblock-statement-body-position": ["error", "below"],
        "operator-linebreak": ["error", "after"],
        "unicorn/no-null": "off",
        "unicorn/prefer-prototype-methods": "off"
      }
    },
    {
      "files": [
        "lib/zlib-internal.js"
      ],
      "rules": {
        "comma-dangle": ["error", "only-multiline"],
        "curly": "off",
        "import/order": "off",
        "no-extra-parens": ["error", "functions"],
        "no-use-before-define": ["error", { "functions": false }],
        "nonblock-statement-body-position": ["error", "below"],
        "operator-linebreak": ["error", "after"],
        "unicorn/no-null": "off",
        "unicorn/prefer-spread": "off"
      }
    }
  ]
}