.eslintrc.yaml

# Copied from musicbrainz-server:
# https://github.com/metabrainz/musicbrainz-server/blob/master/.eslintrc.yaml

root: true
parser: "@babel/eslint-parser"
parserOptions:
  requireConfigFile: false
  babelOptions:
    presets:
      - "@babel/preset-react"
plugins:
  - import
  - react
  - prettier
env:
  browser: true
  node: true
extends:
  - eslint:recommended
  - plugin:react/recommended
  - plugin:prettier/recommended
settings:
  react:
    version: detect
rules:
  for-direction: error
  no-await-in-loop: error
  no-cond-assign: warn
  no-constant-condition:
    - error
    - checkLoops: false
  no-control-regex: warn
  no-debugger: error
  no-dupe-args: error
  no-dupe-keys: error
  no-duplicate-case: error
  no-empty-character-class: error
  no-empty:
    - error
    - allowEmptyCatch: true
  no-extra-semi: warn
  no-irregular-whitespace: warn
  no-obj-calls: error
  no-prototype-builtins: warn
  no-regex-spaces: error
  no-sparse-arrays: error
  no-unexpected-multiline: error
  no-unreachable: error
  no-unsafe-finally: error
  no-unsafe-negation: error
  use-isnan: error
  valid-typeof: error
  block-scoped-var: warn
  class-methods-use-this: warn
  consistent-return: error
  curly:
    - error
    - all
  dot-location:
    - warn
    - property
  dot-notation:
    - warn
    - allowKeywords: true
  eqeqeq: warn
  no-alert: 'off'
  no-else-return: warn
  no-eq-null: error
  no-floating-decimal: warn
  no-multi-spaces:
    - error
    - ignoreEOLComments: true
  radix: warn
  wrap-iife: warn
  strict: 'off'
  no-use-before-define: 'off'
  array-bracket-newline:
    - warn
    - multiline: true
  array-bracket-spacing:
    - warn
    - never
  array-element-newline:
    - warn
    - multiline: true
  block-spacing:
    - warn
    - always
  brace-style:
    - warn
    - 1tbs
  camelcase:
    - warn
    - properties: never
  comma-dangle:
    - warn
    - arrays: always-multiline
      objects: always-multiline
      imports: always-multiline
      exports: always-multiline
      functions: always-multiline
  comma-spacing:
    - warn
    - before: false
      after: true
  comma-style:
    - warn
    - last
  computed-property-spacing:
    - warn
    - never
  consistent-this:
    - warn
    - self
  eol-last:
    - warn
    - always
  func-call-spacing:
    - warn
    - never
  function-paren-newline:
    - warn
    - consistent
  implicit-arrow-linebreak:
    - warn
    - beside
  indent:
    - warn
    - 2
    - SwitchCase: 1
  jsx-quotes:
    - warn
    - prefer-double
  key-spacing:
    - warn
    - mode: minimum
  keyword-spacing:
    - warn
    - before: true
      after: true
  linebreak-style:
    - warn
    - unix
  lines-between-class-members:
    - warn
    - always
  max-len:
    - warn
    - code: 78
      ignoreUrls: true
      ignoreStrings: true
      ignoreTemplateLiterals: true
      ignoreRegExpLiterals: true
  max-statements-per-line:
    - warn
    - max: 1
  multiline-comment-style:
    - warn
    - starred-block
  multiline-ternary: 'off'
  new-cap: 'off'
  new-parens: warn
  newline-per-chained-call:
    - warn
    - ignoreChainWithDepth: 3
  no-lonely-if: warn
  no-mixed-spaces-and-tabs: warn
  no-multi-assign: 'off'
  no-multiple-empty-lines:
    - warn
    - max: 2
      maxBOF: 0
      maxEOF: 0
  no-negated-condition: warn
  no-nested-ternary: 'off'
  no-plusplus: 'off'
  no-tabs: warn
  no-ternary: 'off'
  no-trailing-spaces: warn
  no-underscore-dangle: 'off'
  no-unneeded-ternary: warn
  no-whitespace-before-property: warn
  object-curly-newline:
    - warn
    - multiline: true
      consistent: true
  object-curly-spacing:
    - warn
    - never
  object-property-newline:
    - warn
    - allowAllPropertiesOnSameLine: true
  one-var:
    - warn
    - never
  operator-assignment:
    - warn
    - always
  operator-linebreak:
    - warn
    - after
    - overrides:
        "?": before
        ":": before
  padded-blocks:
    - warn
    - never
  quote-props:
    - warn
    - consistent-as-needed
    - numbers: true
  quotes:
    - warn
    - single
    - avoidEscape: true
      allowTemplateLiterals: true
  semi:
    - warn
    - always
    - omitLastInOneLineBlock: true
  semi-spacing:
    - warn
    - before: false
      after: true
  semi-style:
    - warn
    - last
  sort-keys:
    - warn
    - asc
    - caseSensitive: true
      natural: true
  space-before-blocks:
    - warn
    - always
  space-before-function-paren:
    - warn
    - anonymous: always
      named: never
      asyncArrow: always
  space-in-parens:
    - warn
    - never
  space-infix-ops:
    - warn
    - int32Hint: true
  space-unary-ops:
    - warn
    - words: true
      nonwords: false
  spaced-comment:
    - warn
    - always
    - block:
        balanced: true
  switch-colon-spacing:
    - warn
    - after: true
      before: false
  template-tag-spacing:
    - warn
    - never
  constructor-super: error
  no-class-assign: error
  no-const-assign: error
  no-dupe-class-members: error
  no-duplicate-imports: 'off'
  no-new-symbol: error
  no-this-before-super: error
  no-useless-constructor: warn
  no-useless-rename: warn
  no-var: warn
  prefer-const: warn
  prefer-numeric-literals: warn
  require-yield: error
  rest-spread-spacing:
    - warn
    - never
  sort-imports: 'off'
  template-curly-spacing:
    - warn
    - never
  import/export: error
  import/extensions:
    - warn
    - never
  import/first: warn
  import/newline-after-import:
    - warn
    - count: 1
  import/no-commonjs: error
  import/no-duplicates: warn
  import/no-dynamic-require: error
  import/no-unresolved: error
  import/order:
    - warn
    - newlines-between: always
  react/boolean-prop-naming: 'off'
  react/button-has-type: error
  react/default-props-match-prop-types: 'off'
  react/destructuring-assignment: 'off'
  react/display-name: 'off'
  react/forbid-component-props: 'off'
  react/forbid-dom-props: 'off'
  react/forbid-elements: 'off'
  react/forbid-prop-types: 'off'
  react/forbid-foreign-prop-types: 'off'
  react/no-access-state-in-setstate: error
  react/no-array-index-key: 'off'
  react/no-children-prop: error
  react/no-danger: 'off'
  react/no-danger-with-children: error
  react/no-deprecated: error
  react/no-did-mount-set-state: 'off'
  react/no-did-update-set-state: error
  react/no-direct-mutation-state: error
  react/no-find-dom-node: warn
  react/no-is-mounted: warn
  react/no-multi-comp:
    - warn
    - ignoreStateless: true
  react/no-redundant-should-component-update: error
  react/no-render-return-value: warn
  react/no-set-state: 'off'
  react/no-typos: error
  react/no-string-refs: warn
  react/no-this-in-sfc: error
  react/no-unescaped-entities: error
  react/no-unknown-property: error
  react/no-unused-prop-types: 'off'
  react/no-unused-state: error
  react/no-will-update-set-state: error
  react/prefer-es6-class: 'off'
  react/prefer-stateless-function: warn
  react/prop-types: 'off'
  react/react-in-jsx-scope: error
  react/require-default-props: 'off'
  react/require-optimization: 'off'
  react/require-render-return: error
  react/self-closing-comp: error
  react/sort-comp: warn
  react/sort-prop-types: 'off'
  react/style-prop-object: error
  react/void-dom-elements-no-children: error
  react/jsx-boolean-value:
    - warn
    - never
  react/jsx-closing-bracket-location:
    - error
    - tag-aligned
  react/jsx-closing-tag-location: error
  react/jsx-curly-spacing:
    - error
    - when: never
      children: true
  react/jsx-equals-spacing:
    - error
    - never
  react/jsx-filename-extension:
    - error
    - extensions:
        - ".js"
  react/jsx-first-prop-new-line:
    - error
    - multiline-multiprop
  react/jsx-handler-names: warn
  react/jsx-indent:
    - error
    - 2
  react/jsx-indent-props:
    - error
    - 2
  react/jsx-key: warn
  react/jsx-max-props-per-line:
    - error
    - maximum: 1
      when: multiline
  react/jsx-no-bind: warn
  react/jsx-no-comment-textnodes: warn
  react/jsx-no-duplicate-props:
    - error
    - ignoreCase: true
  react/jsx-no-literals: warn
  react/jsx-no-target-blank: error
  react/jsx-no-undef:
    - error
    - allowGlobals: true
  react/jsx-one-expression-per-line: 'off'
  react/jsx-curly-brace-presence:
    - error
    - props: never
      children: ignore
  react/jsx-pascal-case: error
  react/jsx-sort-default-props: warn
  react/jsx-sort-props: warn
  react/jsx-tag-spacing:
    - error
    - beforeClosing: never
  react/jsx-uses-react: warn
  react/jsx-uses-vars: warn
  react/jsx-wrap-multilines:
    - error
    - declaration: parens-new-line
      assignment: parens-new-line
      return: parens-new-line
      arrow: parens-new-line
      condition: ignore
      logical: ignore
      prop: ignore