eslint.config.js

const promise = require('eslint-plugin-promise');
const globals = require('globals');


module.exports = [
  {
    files: ['**/*.js', '*.js'],
    languageOptions: {

      ecmaVersion: 2020,
      parserOptions: {
        'node': true,
        'es6': true,
        ecmaFeatures: {
          jsx: false,
          modules: false,
        }
      },
      sourceType: 'module',
      globals: {
        ...globals.node,
        'DTRACE_HTTP_CLIENT_REQUEST': false,
        'LTTNG_HTTP_CLIENT_REQUEST': false,
        'COUNTER_HTTP_CLIENT_REQUEST': false,
        'DTRACE_HTTP_CLIENT_RESPONSE': false,
        'LTTNG_HTTP_CLIENT_RESPONSE': false,
        'COUNTER_HTTP_CLIENT_RESPONSE': false,
        'DTRACE_HTTP_SERVER_REQUEST': false,
        'LTTNG_HTTP_SERVER_REQUEST': false,
        'COUNTER_HTTP_SERVER_REQUEST': false,
        'DTRACE_HTTP_SERVER_RESPONSE': false,
        'LTTNG_HTTP_SERVER_RESPONSE': false,
        'COUNTER_HTTP_SERVER_RESPONSE': false,
        'DTRACE_NET_STREAM_END': false,
        'LTTNG_NET_STREAM_END': false,
        'COUNTER_NET_SERVER_CONNECTION_CLOSE': false,
        'DTRACE_NET_SERVER_CONNECTION': false,
        'LTTNG_NET_SERVER_CONNECTION': false,
        'COUNTER_NET_SERVER_CONNECTION': false
      },

    },
    'plugins': {
      promise
    },
    'rules': {
      'promise/always-return': 'error',
      'promise/no-return-wrap': 'error',
      'promise/param-names': 'error',
      'promise/catch-or-return': 'error',
      'promise/no-native': 'off',
      'promise/no-nesting': 'warn',
      'promise/no-promise-in-callback': 'warn',
      'promise/no-callback-in-promise': 'warn',
      'promise/no-return-in-finally': 'warn',

      // Possible Errors
      // http://eslint.org/docs/rules/#possible-errors
      'comma-dangle': [2, 'only-multiline'],
      'no-control-regex': 2,
      'no-debugger': 2,
      'no-dupe-args': 2,
      'no-dupe-keys': 2,
      'no-duplicate-case': 2,
      'no-empty-character-class': 2,
      'no-ex-assign': 2,
      'no-extra-boolean-cast': 2,
      'no-extra-parens': [2, 'functions'],
      'no-extra-semi': 2,
      'no-func-assign': 2,
      'no-invalid-regexp': 2,
      'no-irregular-whitespace': 2,
      'no-negated-in-lhs': 2,
      'no-obj-calls': 2,
      'no-proto': 2,
      'no-unexpected-multiline': 2,
      'no-unreachable': 2,
      'use-isnan': 2,
      'valid-typeof': 2,

      // Best Practices
      // http://eslint.org/docs/rules/#best-practices
      'no-fallthrough': 2,
      'no-octal': 2,
      'no-redeclare': 2,
      'no-self-assign': 2,
      'no-unused-labels': 2,

      // Strict Mode
      // http://eslint.org/docs/rules/#strict-mode
      'strict': [2, 'never'],

      // Variables
      // http://eslint.org/docs/rules/#variables
      'no-delete-var': 2,
      'no-undef': 2,
      'no-unused-vars': [2, { 'args': 'none' }],

      // Node.js and CommonJS
      // http://eslint.org/docs/rules/#nodejs-and-commonjs
      'no-mixed-requires': 2,
      'no-new-require': 2,
      'no-path-concat': 2,
      'no-restricted-modules': [2, 'sys', '_linklist'],

      // Stylistic Issues
      // http://eslint.org/docs/rules/#stylistic-issues
      'comma-spacing': 2,
      'eol-last': 2,
      'indent': [2, 2, { 'SwitchCase': 1 }],
      'keyword-spacing': 2,
      'max-len': [2, 120, 2],
      'new-parens': 2,
      'no-mixed-spaces-and-tabs': 2,
      'no-multiple-empty-lines': [2, { 'max': 2 }],
      'no-trailing-spaces': [2, { 'skipBlankLines': false }],
      'quotes': [2, 'single', 'avoid-escape'],
      'semi': 2,
      'space-before-blocks': [2, 'always'],
      'space-before-function-paren': [2, 'never'],
      'space-in-parens': [2, 'never'],
      'space-infix-ops': 2,
      'space-unary-ops': 2,

      // ECMAScript 6
      // http://eslint.org/docs/rules/#ecmascript-6
      'arrow-parens': [2, 'always'],
      'arrow-spacing': [2, { 'before': true, 'after': true }],
      'constructor-super': 2,
      'no-class-assign': 2,
      'no-confusing-arrow': 2,
      'no-const-assign': 2,
      'no-dupe-class-members': 2,
      'no-new-symbol': 2,
      'no-this-before-super': 2,
      'prefer-const': 2
    },
    'ignores': []
  }
];