.eslintrc.yaml

---
extends:
  - eslint:recommended
  - plugin:flowtype/recommended
  - plugin:react/recommended
  - plugin:jsx-a11y/recommended
  - plugin:lodash/recommended
plugins: [ flowtype, react, babel, lodash, jsx-a11y ]
parserOptions:
  ecmaVersion: 8
  sourceType: module
  ecmaFeatures:
    impliedStrict: true
    experimentalObjectRestSpread: true
env:
  browser: true
  node: true
  commonjs: true
  shared-node-browser: true
  es6: true
  mocha: true
settings:
  flowtype:
    onlyFilesWithFlowAnnotation: true
rules:
  # flow
  flowtype/no-primitive-constructor-types: 2
  flowtype/object-type-delimiter: [ 2, semicolon ]
  flowtype/require-parameter-type: [ 2, { excludeArrowFunctions: true } ]
  flowtype/require-return-type: [ 2, { excludeArrowFunctions: true } ]
  flowtype/require-valid-file-annotation: [ 2, never, { annotationStyle: block } ]
  flowtype/semi: 2
  flowtype/valid-syntax: 0

  # react
  react/display-name: 0
  react/jsx-boolean-value: 2
  react/jsx-curly-spacing: 2
  react/jsx-equals-spacing: 2
  react/jsx-indent: [ 2, 2 ]
  react/jsx-indent-props: [ 2, 2 ]
  react/jsx-key: 2
  react/jsx-no-bind: 2
  react/jsx-no-comment-textnodes: 2
  react/jsx-no-target-blank: 2
  react/jsx-pascal-case: 2
  react/jsx-tag-spacing: 2
  react/jsx-wrap-multilines: 2
  react/no-danger: 2
  react/no-did-mount-set-state: 2
  react/no-did-update-set-state: 2
  react/no-multi-comp: [ 2, { ignoreStateless: true } ]
  react/no-string-refs: 2
  react/no-unescaped-entities: 2
  react/no-unused-prop-types: 2
  react/prefer-es6-class: 2
  react/prefer-stateless-function: 2
  react/require-default-props: 2
  react/require-optimization: 2
  react/self-closing-comp: 2
  react/style-prop-object: 2
  react/void-dom-elements-no-children: 2

  # jsx-a11y
  jsx-a11y/lang: 2

  # babel
  babel/no-invalid-this: 2
  babel/object-curly-spacing: 2
  babel/semi: 2

  # eslint
  accessor-pairs: 2
  array-bracket-spacing: 2
  array-callback-return: 2
  arrow-body-style: 2
  arrow-parens: [ 2, as-needed ]
  arrow-spacing: 2
  block-spacing: [ 2, never ]
  brace-style: 2
  camelcase: 2
  class-methods-use-this: 2
  comma-dangle: 2
  comma-spacing: 2
  comma-style: 2
  complexity: 2
  computed-property-spacing: 2
  consistent-this: [ 2, me ]
  curly: 2
  dot-location: [ 2, property ]
  dot-notation: 2
  eol-last: 2
  eqeqeq: 2
  func-call-spacing: 2
  global-require: 2
  guard-for-in: 2
  handle-callback-err: [ 2, "^err(or)?$" ]
  indent: [ 2, 2, { SwitchCase: 1 } ]
  jsx-quotes: 2
  key-spacing: 2
  keyword-spacing: 2
  linebreak-style: 2
  lines-around-comment:
    - 2
    - beforeLineComment: true
      allowBlockStart: true
      allowBlockEnd: true
      allowObjectStart: true
      allowObjectEnd: true
      allowArrayStart: true
      allowArrayEnd: true
  max-depth: 2
  max-len:
    - 2
    - code: 120
      tabWidth: 2
      ignoreUrls: true
      ignoreRegExpLiterals: true
  max-nested-callbacks: 2
  max-params: [ 2, 5 ]
  max-statements-per-line: 2
  new-cap: 2
  new-parens: 2
  newline-after-var: 2
  newline-before-return: 2
  newline-per-chained-call: [ 2, { ignoreChainWithDepth: 5 } ]
  no-alert: 2
  no-array-constructor: 2
  no-bitwise: [ 2, { int32Hint: true } ]
  no-caller: 2
  no-div-regex: 2
  no-duplicate-imports: [ 2, { includeExports: true } ]
  no-else-return: 2
  no-empty-function: 2
  no-eval: 2
  no-extend-native: 2
  no-extra-bind: 2
  no-extra-parens: 2
  no-global-assign: 2
  no-implicit-coercion: 2
  no-implied-eval: 2
  no-inline-comments: 2
  no-iterator: 2
  no-labels: 2
  no-lone-blocks: 2
  no-lonely-if: 2
  no-loop-func: 2
  no-magic-numbers: [ 2, { ignore: [ -1, 0, 1, 2 ] } ]
  no-mixed-requires: [ 2, { allowCall: true } ]
  no-multi-str: 2
  no-multiple-empty-lines: [ 2, { max: 1 } ]
  no-negated-condition: 2
  no-nested-ternary: 2
  no-new: 2
  no-new-func: 2
  no-new-object: 2
  no-new-require: 2
  no-new-wrappers: 2
  no-octal-escape: 2
  no-path-concat: 2
  no-process-env: 2
  no-process-exit: 2
  no-proto: 2
  no-return-assign: 2
  no-script-url: 2
  no-self-compare: 2
  no-sequences: 2
  no-shadow-restricted-names: 2
  no-sync: 2
  no-tabs: 2
  no-template-curly-in-string: 2
  no-throw-literal: 2
  no-trailing-spaces: 2
  no-undef-init: 2
  no-unmodified-loop-condition: 2
  no-unneeded-ternary: [ 2, { defaultAssignment: false } ]
  no-unsafe-negation: 2
  no-unused-expressions: 2
  no-use-before-define: [ 2, { functions: false } ]
  no-useless-call: 2
  no-useless-computed-key: 2
  no-useless-concat: 2
  no-useless-constructor: 2
  no-useless-escape: 2
  no-var: 2
  no-void: 2
  no-warning-comments: 2
  no-whitespace-before-property: 2
  no-with: 2
  object-shorthand: 2
  operator-assignment: 2
  operator-linebreak: 2
  prefer-arrow-callback: 2
  prefer-const: 2

  # bring back when the authors fix the false positives
  prefer-destructuring:
    - 0
    - array: true
      object: true
    - enforceForRenamedProperties: true

  prefer-rest-params: 2
  prefer-spread: 2
  prefer-template: 2
  quote-props: [ 2, as-needed ]
  quotes: [ 2, single, avoid-escape ]
  radix: 2
  require-jsdoc: [ 2, { require: { FunctionDeclaration: true, MethodDefinition: true, ClassDeclaration: true } } ]
  rest-spread-spacing: 2
  semi-spacing: 2
  space-before-blocks: 2
  space-before-function-paren: [ 2, { anonymous: always, named: never } ]
  space-in-parens: 2
  space-infix-ops: [ 2, { int32Hint : true } ]
  space-unary-ops: 2
  spaced-comment: 2
  template-curly-spacing: 2
  template-tag-spacing: 2
  unicode-bom: 2
  valid-jsdoc: [ 2, { prefer: { returns: return }, requireReturn: false } ]
  wrap-iife: 2
  yoda: [ 2, always ]