.swiftlint.yml

reporter: xcode
opt_in_rules:
  - force_unwrapping
  - empty_count
  - vertical_whitespace
excluded:
  - Carthage
  - Pods
  - vendor
  - fastlane
private_outlet:
  allow_private_set: true
force_unwrapping: error
line_length: 150
identifier_name: 
   min_length: 2
custom_rules:
  disable:
    name: "Disable Rule In Code"
    regex: "(swiftlint:disable)"
    message: "Please do not disable rule in code. "
    severity: error
    match_kinds: comment
  delegate:
    name: "delegate"
    regex: '(\s{2,}var\s+delegate)'
    message: "Please use `weak` for `delegate`. "
    severity: error
  comments_space:
    name: "Space After Comment"
    regex: '(^ *//\w+)'
    message: "There should be a space after //"
    severity: warning
    match_kinds: comment
  multiple_empty_lines:
    name: "Multiple Empty Lines"
    regex: '((?: *\n){3,})'
    message: "There are too many line breaks"
    severity: warning
  empty_line:
    name: "Empty Line"
    regex: '(\}\n +( |class|static|dynamic|@objc|@IBAction|override|private|public|internal){0,}func)'
    message: "Must have an empty line between functions. "
    severity: warning
  extension_mark:
    name: "Extension Mark"
    regex: '(\}\n\nextension)'
    message: "Must have `// MARK:` before extension. "
    severity: warning
  switch_enum:
    name: "Switch Enum"
    regex: '(case\s\w+\.+rawValue:)'
    message: "Don't use enum.rawValue in switch-case. Please convert value to enum first. "
    severity: error
  compile_lookup:
    name: "Compile Lookup"
    regex: '((var|let)\s+\w+\s*=\s*\[)'
    message: "You need to give types to the array and dictionary. "
    severity: error
  weak_self_usage:
    name: "Weak Self Usage"
    regex: '(self\?\.)'
    message: "Explicitly extending lifetime is preferred to optional binding. Ex: `guard let this = self else { return }`. "
    severity: error
  weak_self_binding:
    name: "Weak Self Binding"
    regex: '(let\s+(?!this)\w+\s*=\s*self[,\s])'
    message: "Please use `let this = self` instead. "
    severity: error
  unowned:
    name: "Unowned"
    regex: "(unowned)"
    message: "Please use `weak` instead. "
    severity: error
  empty_string:
    name: "Empty String"
    regex: '((!\w+.isNotEmpty)|(length == 0))'
    message: "Please use `isEmpty` instead. "
    severity: error
  not_empty_string:
    name: "Not Empty String"
    regex: '((!\w+.isEmpty)|(length (!=|>) 0))'
    message: "Please use `isNotEmpty` instead. "
    severity: error
  bracket:
    name: "Bracket"
    regex: '(\}\n{2,}\}|\{\n{2,}\{)'
    message: "No empty line between two open or close brackets. "
    severity: warning
  query_string:
    name: "Query String"
    regex: '( [=!><]+ \\\(.*\))'
    message: "Do not use the string interpolation syntax for query string. "
    severity: warning
  append_array:
   name: "Append array"
   regex: '(\+ \[.*\].*)'
   message: "Do not use + for array, should use `append` instead"
   severity: warning
  optional_checking:
   name: "Optional checking"
   regex: '(\?\?.+)'
   message: "You should use `if let` or `guard let` or `if else` instead"
   severity: warning
  conditional:
   name: "Condition statement"
   regex: '( \? .+ : )'
   message: "Should use if else instead"
   severity: warning