root: true

plugins:
  - markdown

env:
  node: true
  es6: true

parserOptions:
  ecmaVersion: 2017

overrides:
  - files: ["doc/api/esm.md", "*.mjs"]
    parserOptions:
      sourceType: module

rules:
  # Possible Errors
  # http://eslint.org/docs/rules/#possible-errors
  no-control-regex: error
  no-debugger: error
  no-dupe-args: error
  no-dupe-keys: error
  no-duplicate-case: error
  no-empty-character-class: error
  no-ex-assign: error
  no-extra-boolean-cast: error
  no-extra-parens: [error, functions]
  no-extra-semi: error
  no-func-assign: error
  no-invalid-regexp: error
  no-irregular-whitespace: error
  no-obj-calls: error
  no-template-curly-in-string: error
  no-unexpected-multiline: error
  no-unreachable: error
  no-unsafe-negation: error
  use-isnan: error
  valid-typeof: error

  # Best Practices
  # http://eslint.org/docs/rules/#best-practices
  dot-location: [error, property]
  eqeqeq: [error, smart]
  no-fallthrough: error
  no-global-assign: error
  no-multi-spaces: [error, {ignoreEOLComments: true}]
  no-octal: error
  no-proto: error
  no-redeclare: error
  no-restricted-properties:
    - error
    - object: assert
      property: deepEqual
      message: Use assert.deepStrictEqual().
    - object: assert
      property: equal
      message: Use assert.strictEqual() rather than assert.equal().
    - object: assert
      property: notEqual
      message: Use assert.notStrictEqual() rather than assert.notEqual().
    - property: __defineGetter__
      message: __defineGetter__ is deprecated.
    - property: __defineSetter__
      message: __defineSetter__ is deprecated.
  no-self-assign: error
  no-throw-literal: error
  no-unused-labels: error
  no-useless-call: error
  no-useless-concat: error
  no-useless-escape: error
  no-useless-return: error
  no-void: error
  no-with: error

  # Strict Mode
  # http://eslint.org/docs/rules/#strict-mode
  strict: [error, global]

  # Variables
  # http://eslint.org/docs/rules/#variables
  no-delete-var: error
  no-undef: error
  no-unused-vars: [error, {args: none}]
  no-use-before-define: [error, {classes: true,
                                 functions: false,
                                 variables: false}]

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

  # Stylistic Issues
  # http://eslint.org/docs/rules/#stylistic-issues
  block-spacing: error
  brace-style: [error, 1tbs, {allowSingleLine: true}]
  comma-dangle: [error, only-multiline]
  comma-spacing: error
  comma-style: error
  computed-property-spacing: error
  eol-last: error
  func-call-spacing: error
  func-name-matching: error
  func-style: [error, declaration, {allowArrowFunctions: true}]
  indent: [error, 2, {ArrayExpression: first,
                      CallExpression: {arguments: first},
                      FunctionDeclaration: {parameters: first},
                      FunctionExpression: {parameters: first},
                      MemberExpression: off,
                      ObjectExpression: first,
                      SwitchCase: 1}]
  key-spacing: [error, {mode: minimum}]
  keyword-spacing: error
  linebreak-style: [error, unix]
  max-len: [error, {code: 80,
                ignoreRegExpLiterals: true,
                ignoreUrls: true,
                tabWidth: 2}]
  new-parens: error
  no-mixed-spaces-and-tabs: error
  no-multiple-empty-lines: [error, {max: 2, maxEOF: 0, maxBOF: 0}]
  no-restricted-syntax: [error, {
    selector: "CallExpression[callee.object.name='assert'][callee.property.name='throws'][arguments.1.type='Literal']:not([arguments.1.regex])",
    message: "use a regular expression for second argument of assert.throws()"
  }, {
    selector: "CallExpression[callee.object.name='assert'][callee.property.name='throws'][arguments.length<2]",
    message: "assert.throws() must be invoked with at least two arguments."
  }, {
    selector: "CallExpression[callee.name='setTimeout'][arguments.length<2]",
    message: "setTimeout() must be invoked with at least two arguments."
  }, {
    selector: "CallExpression[callee.name='setInterval'][arguments.length<2]",
    message: "setInterval() must be invoked with at least 2 arguments."
  }, {
    selector: "ThrowStatement > CallExpression[callee.name=/Error$/]",
    message: "Use new keyword when throwing an Error."
  }]
  no-tabs: error
  no-trailing-spaces: error
  object-curly-spacing: [error, always]
  one-var-declaration-per-line: error
  operator-linebreak: [error, after]
  quotes: [error, single, avoid-escape]
  semi: error
  semi-spacing: error
  space-before-blocks: [error, always]
  space-before-function-paren: [error, {
    anonymous: never,
    named: never,
    asyncArrow: always
  }]
  space-in-parens: [error, never]
  space-infix-ops: error
  space-unary-ops: error
  unicode-bom: error

  # ECMAScript 6
  # http://eslint.org/docs/rules/#ecmascript-6
  arrow-parens: [error, always]
  arrow-spacing: [error, {before: true, after: true}]
  constructor-super: error
  no-class-assign: error
  no-confusing-arrow: error
  no-const-assign: error
  no-dupe-class-members: error
  no-new-symbol: error
  no-this-before-super: error
  prefer-const: [error, {ignoreReadBeforeAssign: true}]
  rest-spread-spacing: error
  template-curly-spacing: error

  # Custom rules in tools/eslint-rules
  no-unescaped-regexp-dot: error

# Global scoped method and vars
globals:
  COUNTER_HTTP_CLIENT_REQUEST: false
  COUNTER_HTTP_CLIENT_RESPONSE: false
  COUNTER_HTTP_SERVER_REQUEST: false
  COUNTER_HTTP_SERVER_RESPONSE: false
  COUNTER_NET_SERVER_CONNECTION: false
  COUNTER_NET_SERVER_CONNECTION_CLOSE: false
  DTRACE_HTTP_CLIENT_REQUEST: false
  DTRACE_HTTP_CLIENT_RESPONSE: false
  DTRACE_HTTP_SERVER_REQUEST: false
  DTRACE_HTTP_SERVER_RESPONSE: false
  DTRACE_NET_SERVER_CONNECTION: false
  DTRACE_NET_STREAM_END: false
  LTTNG_HTTP_CLIENT_REQUEST: false
  LTTNG_HTTP_CLIENT_RESPONSE: false
  LTTNG_HTTP_SERVER_REQUEST: false
  LTTNG_HTTP_SERVER_RESPONSE: false
  LTTNG_NET_SERVER_CONNECTION: false
  LTTNG_NET_STREAM_END: false