.eslintrc.yml

---
root: true
plugins:
  - import
  - jsdoc
  - node
  - promise
  - sonarjs
  - prettier
  - unicorn
  - '@typescript-eslint'
  - unused-imports
extends:
  - ./.eslint-license-header.yml
  - eslint:recommended
  - plugin:import/recommended
  - plugin:node/recommended
  - plugin:unicorn/recommended
  - prettier
  - plugin:@typescript-eslint/eslint-recommended
  - plugin:@typescript-eslint/recommended
  - plugin:import/typescript
env:
  mocha: true
  node: true
  es6: true
rules:
  prettier/prettier: error
  comma-dangle:
    - error
    - arrays: always-multiline
      objects: always-multiline
      imports: always-multiline
      exports: always-multiline
      functions: always-multiline
  eol-last:
    - error
    - always
  eqeqeq:
    - error
    - smart
  import/default: off # fs-extra trips this. the ts compiler catches actual errors
  import/extensions: error
  import/first: error
  import/newline-after-import: error
  import/no-absolute-path: error
  # import/no-cycle: error # disabled for now, there's an import cycle between the base-compiler and demanglers
  import/no-default-export: error
  import/no-deprecated: error
  import/no-mutable-exports: error
  import/no-named-as-default-member: off # Far too many things (express, morgan, fs) trip this
  import/no-self-import: error
  import/no-useless-path-segments: error
  import/no-webpack-loader-syntax: error
  import/order:
    - error
    - alphabetize:
        order: asc
        caseInsensitive: true
      newlines-between: always
  max-len:
    - error
    - 120
    - ignoreRegExpLiterals: true
  max-statements:
    - error
    - 100 # TODO reduce...was 50
  no-console: error
  no-control-regex: 0
  no-duplicate-imports: error
  no-useless-call: error
  no-useless-computed-key: error
  no-useless-concat: error
  '@typescript-eslint/no-useless-constructor': error
  no-useless-escape: error
  no-useless-rename: error
  no-useless-return: error
  no-empty:
    - error
    - allowEmptyCatch: true
  quote-props:
    - error
    - as-needed
  quotes:
    - error
    - single
    - allowTemplateLiterals: true
      avoidEscape: true
  semi:
    - error
    - always
  space-before-function-paren:
    - error
    - anonymous: always
      asyncArrow: always
      named: never
  keyword-spacing:
    - error
    - after: true
  yoda:
    - error
    - never
    - onlyEquality: true
  prefer-const:
    - error
    - destructuring: all
  jsdoc/check-alignment: error
  jsdoc/check-param-names: error
  jsdoc/check-syntax: error
  jsdoc/check-tag-names: off
  jsdoc/check-types: error
  jsdoc/empty-tags: error
  jsdoc/newline-after-description: error
  jsdoc/require-hyphen-before-param-description: error
  jsdoc/valid-types: error
  no-multiple-empty-lines:
    - error
    - max: 1
      maxBOF: 0
      maxEOF: 0
  no-process-exit: off
  node/no-unsupported-features/es-syntax: off
  node/shebang: off
  promise/catch-or-return: error
  promise/no-new-statics: error
  promise/no-return-wrap: error
  promise/param-names: error
  promise/valid-params: error
  sonarjs/no-collection-size-mischeck: error
  sonarjs/no-redundant-boolean: error
  sonarjs/no-unused-collection: error
  sonarjs/prefer-immediate-return: error
  sonarjs/prefer-object-literal: error
  sonarjs/prefer-single-boolean-return: error
  sort-imports:
    - error
    - ignoreCase: true
      ignoreDeclarationSort: true
  unicorn/catch-error-name: off
  unicorn/consistent-function-scoping: off
  unicorn/empty-brace-spaces: off
  unicorn/no-fn-reference-in-iterator: off
  unicorn/no-hex-escape: off
  unicorn/no-null: off
  unicorn/no-reduce: off
  unicorn/numeric-separators-style: off
  unicorn/prefer-add-event-listener: off
  unicorn/prefer-flat-map: error
  unicorn/prefer-optional-catch-binding: off
  unicorn/prefer-node-protocol: off # until we get node 16+
  unicorn/prefer-number-properties: off
  unicorn/prefer-string-slice: off
  unicorn/prevent-abbreviations: off
  # things we'd like to turn on but need fairly extensive code changes:
  unicorn/prefer-ternary: off
  unicorn/prefer-array-some: off
  unicorn/prefer-spread: off
  unicorn/no-lonely-if: off
  unicorn/no-array-reduce: off
  unicorn/prefer-array-flat: off # can't turn off yet without tests blowing up; lodash vs underscore?
  unicorn/no-array-callback-reference: off
  unicorn/prefer-switch: off
  unicorn/no-static-only-class: off
  unicorn/no-process-exit: off
  unicorn/no-useless-undefined:
    - error
    - checkArguments: false
  '@typescript-eslint/no-empty-function': off
  '@typescript-eslint/no-unused-vars': off
  '@typescript-eslint/no-explicit-any': off
parserOptions:
  sourceType: module
  ecmaVersion: 2020
globals:
  BigInt: true
settings:
  node:
    tryExtensions: [.js, .ts]
  import/parsers:
    '@typescript-eslint/parser': [.ts, .tsx]
  import/resolver: 'typescript'