opt_in_rules:

  # performance

  - first_where
  - last_where
  - empty_string
  - empty_count
  - contains_over_filter_count
  - contains_over_filter_is_empty
  - empty_collection_literal
  - contains_over_range_nil_comparison
  - contains_over_first_not_nil
  - flatmap_over_map_reduce

  # idiomatic

  - legacy_random
  - legacy_multiple
  - pattern_matching_keywords
  - redundant_nil_coalescing
  - redundant_type_annotation
  - static_operator
  - toggle_bool
  - joined_default_parameter
  - implicitly_unwrapped_optional
  - convenience_type
  - object_literal
  - force_unwrapping
  - force_cast
  - force_try
  - fatal_error_message
  - extension_access_modifier
  - explicit_init

  # style

  - literal_expression_end_indentation
  - multiline_function_chains
  - multiline_literal_brackets
  - multiline_parameters
  - operator_usage_whitespace
  - switch_case_on_newline
  - unneeded_parentheses_in_closure_argument
  - vertical_parameter_alignment_on_call
  - vertical_whitespace_between_cases
  - vertical_whitespace_closing_braces
  - yoda_condition
  - number_separator
  - let_var_whitespace
  - implicit_return
  - conditional_returns_on_newline
  - closure_spacing
  - closure_end_indentation
  - prefer_self_type_over_type_of_self

  # lint

  - private_action
  - private_outlet
  - prohibited_super_call
  - unused_import
  - unused_declaration
  - identical_operands
  - overridden_super_call
  - unowned_variable_capture

  # metrics

  - enum_case_associated_values_count

excluded:
  - Carthage
  - Pods
  - Generated
  - Localization

line_length:
  warning: 128
  ignores_urls: true

cyclomatic_complexity:
  ignores_case_statements: true

type_body_length:
  - 500 # warning
  - 700 # error

file_length:
  warning: 500
  error: 1200

function_parameter_count:
  error: 5

colon:
  flexible_right_spacing: true

enum_case_associated_values_count:
  warning: 4
  error: 5

identifier_name:
  excluded:
    - id
    - ok
    - URL
    - x
    - y
    - z

warning_threshold: 1

custom_rules:

  # General

  uiwebview_disabled:
    included: ".*.swift"
    name: "UIWebView Usage Disabled"
    regex: 'UIWebView'
    message: "Do not use UIWebView. Use WKWebView Instead. https://developer.apple.com/reference/uikit/uiwebview"
    severity: error

  native_print:
    name: "print -> DDLog"
    regex: '(print|NSLog)\('
    message: "Please use CocoaLumberjack instead `print` and `NSlog`"
    severity: error

  uiedge_insets_zero:
    name: "UIEdgeInsets .zero"
    regex: '\(top: 0, left: 0, bottom: 0, right: 0\)'
    message: "Please use short init `.zero`."
    severity: error

  let_variable:
    name: "Let Variable"
    regex: 'var\s\w*(:|(\s=))\sVariable'
    message: "Please make variable using `let`."
    severity: error

  marks_style:
    name: "Marks"
    regex: '// MARK: -?[a-zA-Z0-9]'
    message: "Marks should follow the following structure: // MARK: - Comment."
    severity: warning

  no_header_comments:
    name: "Header Comments"
    regex: '//\s*Created by.*\s*//\s*Copyright'
    match_kinds:
      - comment
    message: "Template header comments should be removed."

  unnecessary_type:
   name: "Unnecessary Type"
   regex: '[ @a-zA-Z]*(?:let|var)\s\w*: ([a-zA-Z0-9]*)\?? = \1'
   message: "Type definition not needed"
   severity: error

  unowned:
    name: "Unowned"
    regex: 'unowned'
    message: "Please use `weak` instead. "
    severity: error

  continue_keyword:
    name: "Continue"
    regex: 'continue'
    message: "Don't use continue instruction"
    severity: error
    match_kinds: keyword

  cyrillic_strings:
    name: "Cyrillic strings"
    regex: '[а-яА-Я]+'
    message: "Localize or translate"
    severity: error
    match_kinds:
    - identifier
    - string

  too_many_empty_spaces:
    name: "Too many empty spaces"
    regex: '(?!\n)[^ \n]+ {2,}.+'
    message: "Remove excess empty spaces"
    severity: warning
    match_kinds:
      - argument
      - attribute.builtin
      - attribute.id
      - buildconfig.id
      - buildconfig.keyword
      - identifier
      - keyword
      - number
      - objectliteral
      - parameter
      - placeholder
      # - string # all except string literals
      # - comment # and comments
      # - comment.mark
      # - comment.url
      # - doccomment
      # - doccomment.field
      - string_interpolation_anchor
      - typeidentifier

  getter_setter_style:
    name: "Wrong getter/setter code style"
    regex: "(get|set|willSet|didSet) \\{ [.]*"
    match_kinds:
    - keyword
    message: "Make a new line break when use getter or setter"
    severity: error

  redundant_boolean_condition:
    name: "Redundant Boolean Condition"
    regex: "(== true)|(== false)|(!= true)|(!= false)"
    message: "Comparing a boolean to true is redundant (use `?? false` for optionals), and `!`-syntax is preferred over comparing to false."
    severity: error

  redundant_ternary_operator:
    name: "Redundant Ternary Operator"
    regex: "(\\? true \\: false)|(\\? false \\: true)"
    message: "Returning a boolean as true is redundant, and `!`-syntax is preferred over returning as false."
    severity: error

  single_line_closure:
    name: "Single line closure"
    regex: '\{([^\n\/]*\[[^\]]+\][^\n\/]*)?([^\n\/]*[a-zA-Z]\w*(, \w+)*)? in [^\n\/]+'
    message: "Too complex expression for single line closure. Improve readability by making it multiline."
    severity: error

  addSubview_in_cell:
    name: "Usage addSubview in cell"
    regex: '(extension|class)\s*\w+Cell(:| )(?s).*(self\.|\s{2,})add(Subv|V)iews?\(\w'
    message: "Use сontentView instead of self for addSubview or addSubviews methods in cell."
    severity: error

  redundant_type_annotation_bool:
    name: "Redundant type annotation for Bool"
    regex: '\s((var|let))\s{1,}\w+ *((: *Bool *=)|((\w| |<|>|:)*= *BehaviorRelay<Bool>\( *value *:)) *((true)|(false))'
    message: "Using a type annotation for Bool is redundant."
    severity: error

  parameter_repetition:
    name: "Parameter repetition"
    regex: 'func ((\w+([A-Z]\w+))|(\w+)) *(<[^>]+>)? *\( *(?i)(\3|\4):'
    message: "The parameter name is actually used in the function name. Use _ instead."
    severity: error

  parameter_closure:
    name: "Parameter closure"
    regex: '\w*Closure<[^\r\n\t\f\v]*, Void[^\r\n\t\f\v]*>'
    message: "Use `ParameterClosure` instead of declaring an explicit return value of `Void`."
    severity: error

  # Rx

  unused_map_parameter:
    name: "Unused map parameter"
    regex: '.map\s*\{\s*_\s*in'
    message: "Replace Rx.map operator with replace(with:) or asVoid(). For Sequence.map consider using forEach."
    severity: warning

  disposable_nil:
    name: "Disposable nil"
    regex: ' *\S*(d|D)isposable\?? *= *nil'
    message: "nil assigning doesn't dispose subscription. Call `dispose()` instead."
    severity: error

  # LeadKit

  multiple_add_subview:
    name: "Multiple addSubview calls"
    regex: '(^\s*\w*\.?)(addSubview)\([\w]+\)\n\1\2'
    message: "Replace multiple addSubview calls with single addSubviews."
    severity: warning