.eslint.yaml

env:
  node: true

#
# 0 - disable
#     Rules that more harmful than useful, or just buggy.
#
# 1 - warning
#     Rules that we didn't encounter yet. You can safely ignore them,
#     but I'd like to know any interesting use-cases they forbid.
#
# 2 - error
#     Rules that have proven to be useful, please follow them.
#

rules:
  # didn't understand what it does, but it fails a good code
  block-scoped-var: 0

  # fails where newlines are used to format pretty big "if":
  # if (
  #    name.charAt(0) === "." ||
  #    name.match(/[\/@\s\+%:]/) ||
  #    name !== encodeURIComponent(name) ||
  #    name.toLowerCase() === "node_modules"
  # ) {
  brace-style: 1

  # snake_case is more readable, what's up with you guys?
  camelcase: 0

  # if some functions are complex, they are for a good reason,
  # ain't worth it
  complexity: [0, 10]

  # never saw it, but self is preferred
  consistent-this: [1, self]

  # fails good code
  curly: [0, multi]

  # fails good code, where this notation is used for consistency:
  #   something['foo-bar'] = 123
  #   something['blahblah'] = 234
  dot-notation: 0

  # pointless in many cases (like indexOf() == -1), harmful in a few
  # cases (when you do want to ignore types), fails good code
  eqeqeq: 0

  # if someone is changing prototype and makes properties enumerable,
  # it's their own fault
  guard-for-in: 0

  # if some functions are complex, they are for a good reason,
  # ain't worth it
  max-depth: [0, 4]
  max-nested-callbacks: [0, 2]

  # should it really throw for every long URL?
  max-len: [0, 80, 4]

  # that's obvious by just looking at the code, you don't need lint for that
  max-params: [0, 3]

  # if some functions are complex, they are for a good reason,
  # ain't worth it
  max-statements: [0, 10]

  # that one makes sense
  new-cap: 2

  # I'm writing javascript, not some weird reduced version of it
  no-bitwise: 0

  # not working around IE bugs, sorry
  no-catch-shadow: 0

  # see above, IE is useful for downloading other browsers only
  no-comma-dangle: 0

  # good for removing debugging code
  no-console: 2

  # good for removing debugging code
  no-debugger: 2

  # why would anyone need to check against that?
  no-else-return: 0

  # sometimes empty statement contains useful comment
  no-empty: 0

  # stupid rule
  # "x == null" is "x === null || x === undefined"
  no-eq-null: 0

  # fails good code, when parens are used for grouping:
  #   (req && req.headers['via']) ? req.headers['via'] + ', ' : ''
  # not everyone remembers priority tables, you know
  no-extra-parens: 0

  # fails defensive semicolons:
  #   ;['foo', 'bar'].forEach(function(x) {})
  no-extra-semi: 0

  # fails good code:
  #   var fs   = require('fs'),
  #     , open = fs.open
  no-mixed-requires: [0, false]

  # new Array(12) is used to pre-allocate arrays
  no-new-array: 0

  # fails good code:
  #   fs.open('/file', 0666, function(){})
  no-octal: 0

  # fails good code:
  #   console.log('\033[31m' + str + '\033[39m')
  # also fails \0 which is not octal escape
  no-octal-escape: 0

  # I'm writing javascript, not some weird reduced version of it
  no-plusplus: 0

  # fails good code:
  #   if (a) {
  #      var x = 'foo'
  #   } else {
  #      var x = bar
  #   }
  no-redeclare: 0

  # sometimes useful, often isn't
  # probably worth enforcing
  no-shadow: 2

  no-sync: 2

  # I'm writing javascript, not some weird reduced version of it
  no-ternary: 0

  # the single most important rule in the entire ruleset
  no-undef: 2

  # it is failing our own underscores
  no-underscore-dangle: 0

  # fails function hoisting
  no-unreachable: 0

  # fails npm-style code, it's good once you get used to it:
  #   if (typeof(options) === 'function') callback = options, options = {}
  no-unused-expressions: 0

  # fails (function(_err) {}) where named argument is used to show what
  # nth function argument means
  no-unused-vars: [0, local]

  # fails function hoisting
  no-use-before-define: 0

  # fails foobar( (function(){}).bind(this) )
  # parens are added for readability
  no-wrap-func: 0

  # fails good code:
  #   var x
  #   if (something) {
  #      var y
  one-var: 0

  quote-props: 0

  # fails situation when different quotes are used to avoid escaping
  quotes: [2, single, avoid-escape]

  # http:#blog.izs.me/post/2353458699/an-open-letter-to-javascript-leaders-regarding
  semi: [2, never]

  # fails good code where spaces are used for grouping:
  #   (x+y * y+z)
  space-infix-ops: 0

  # typeof(something) should have braces to look like a function
  # a matter of taste I suppose
  space-unary-word-ops: 0

  # strict mode is just harmful,
  # can I have a check to enforce not using it?
  strict: 0

  sort-vars: 0
  no-path-concat: 0
  func-names: 0

  # how can you set a return code without process.exit?
  no-process-exit: 0

  # both styles are useful
  func-style: [0, declaration]

  # fails while(1) {...}
  no-constant-condition: 0

  # fails good code:
  # https://github.com/rlidwka/jju/blob/eb52ee72e5f21d48963798f9bda8ac8d68082148/lib/parse.js#L732
  no-ex-assign: 0

  wrap-iife: [2, inside]

  consistent-return: 1
  new-parens: 1
  no-alert: 1
  no-array-constructor: 1
  no-caller: 1
  no-cond-assign: 1
  no-control-regex: 1
  no-delete-var: 1
  no-div-regex: 1
  no-dupe-keys: 1
  no-empty-class: 1
  no-empty-label: 1
  no-eval: 1
  no-extend-native: 1
  no-extra-boolean-cast: 1
  no-extra-strict: 1
  no-fallthrough: 1
  no-floating-decimal: 1
  no-func-assign: 1
  no-global-strict: 1
  no-implied-eval: 1
  no-invalid-regexp: 1
  no-iterator: 1
  no-labels: 1
  no-label-var: 1
  no-lone-blocks: 1
  no-loop-func: 1
  no-multi-str: 1
  no-native-reassign: 1
  no-negated-in-lhs: 1
  no-nested-ternary: 1
  no-new: 1
  no-new-func: 1
  no-new-object: 1
  no-new-wrappers: 1
  no-obj-calls: 1
  no-octal: 1
  no-proto: 1
  no-regex-spaces: 1
  no-return-assign: 1
  no-script-url: 1
  no-self-compare: 1
  no-shadow: 1
  no-shadow-restricted-names: 1
  no-spaced-func: 1
  no-sparse-arrays: 1
  no-sync: 1
  no-undef: 1
  no-undef-init: 1
  no-unreachable: 1
  no-with: 1
  no-yoda: 1
  radix: 1
  space-return-throw-case: 1
  use-isnan: 1
  valid-jsdoc: 1
  wrap-regex: 1