0.46.0: Detergent Container

Breaking

• The weak_delegate rule has been deprecated due to its high false
  positive rate. The identifier will become invalid in a future
  release.
  JP Simard
  #2786

Experimental

• None.

Enhancements

• Official Docker images are now available. See the
  Docker section of the README for usage
  instructions.
  Francisco Javier Trujillo Mata

• Allow unused_setter_value for overrides.
  Adrian Debbeler
  #2585

Bug Fixes

• Fix convenience_type false positives when using actors.
  JP Simard
  #3770

• Fix false positives in the prefer_self_in_static_references rule.
  SimplyDanny
  #3768

• Fix the regex for expiring TODO comments.
  Sergei Shirokov
  #3767

• Fix crash when parsing multi-line attributes with the attributes
  rule.
  JP Simard
  #3761

• Fix false positives in unused_closure_parameter when using
  list element bindings in SwiftUI.
  Paul Williamson
  #3790

• Fix the cache path not being properly set when using nested
  configurations.
  Andrés Cecilia Luque

0.45.1: Clothes Drying Hooks

Breaking

• None.

Experimental

• None.

Enhancements

• Update Rule list documentation to distinguish between opt-in and
  on-by-default rules.
  Benny Wong

• Add opt-in prefer_self_in_static_references rule to warn if the
  type name is used to reference static members the same type.
  Prefer using Self instead which is not affected by renamings.
  SimplyDanny

• Add support for running SwiftLint as a
  pre-commit hook.
  Jesse Crocker
  Hannes Ljungberg

Bug Fixes

• Fix unused_import rule incorrectly considering SwiftShims as a
  used import.
  JP Simard

• Fix false positives on large_tuple rule when using async closures.
  Kaitlin Mahar
  #3753

• Fix false positive on legacy_objc_type rule when using
  types with names that start with a legacy type name.
  Isaac Ressler
  #3555

0.45.0: Effectful Apparel

Breaking

• SwiftLint now requires Swift 5.4 or higher to build.
  JP Simard

Experimental

• None.

Enhancements

• Add self_in_property_initialization rule to catch uses of self
  inside an inline closure used for initializing a variable. In this case,
  self refers to the NSObject.self method and likely won't be what you
  expect. You can make the variable lazy to be able to refer to the current
  instance with self or use MyClass.self if you really want to reference
  the method.
  Marcelo Fabri

• Exclude id from identifier_name by default.
  Artem Garmash
  #3651

• Handle get async and get throws (introduced in Swift 5.5) in the
  implicit_getter rule.
  Marcelo Fabri
  #3684

• Speed up explicit type interface rule.
  PaulTaykalo
  #3745

• Speed up analyzer rules.
  PaulTaykalo
  #3747

Bug Fixes

• Fix a bug with the missing_docs rule where
  excludes_inherited_types would not be set.
  Ben Fox

• Fix redundant_optional_initialization autocorrect broken
  in case observer's brace exists.
  Naruki Chigira
  #3718

• Fix a false positive in the unneeded_break_in_switch rule when
  using do/catch.
  Marcelo Fabri
  #3724

• Speed up Computed Accessors Order rule.
  PaulTaykalo
  #3727

• [Colon Rule] Fix case when comment is used in function call.
  PaulTaykalo
  #3740

0.44.0: Travel Size Lint Roller

Breaking

• SwiftLint now requires Swift 5.3 or higher to build.
  JP Simard

Experimental

• None.

Enhancements

• Add configuration options to missing_docs rule:

  • excludes_extensions defaults to true to skip reporting violations
    for extensions with missing documentation comments.
  • excludes_inherited_types defaults to true to skip reporting
    violations for inherited declarations, like subclass overrides.
    Ben Fox

• Fix false negative on redundant_optional_initialization rule when variable
  has observers.
  Isaac Ressler
  #3621

• Make test_case_accessibility rule identify invalid test functions
  with parameters.
  Keith Smiley
  #3612

• Add duplicated_key_in_dictionary_literal rule to warn against duplicated
  keys in dictionary literals.
  Marcelo Fabri

• Fix the rule name from "Colon" to "Colon Spacing" to improve phrasing.
  Radu
  #3587

• Add discouraged_none_name opt-in rule to discourage naming cases and
  static/class members "none", which can conflict with Swift's
  Optional<T>.none when checking equality.
  Kane Cheshire
  #3624

• Improve language and positioning of file_length warnings when
  ignore_comment_only_lines: true.
  Steven Grosmark
  #3654

• Add anonymous_argument_in_multiline_closure opt-in rule to validate that
  named arguments are used in closures that span multiple lines.
  Marcelo Fabri

Bug Fixes

• Fix false positives in empty_enum_arguments rule when comparing values
  with a static member (e.g. if number == .zero).
  Marcelo Fabri
  #3562

• Fix the regex for expiring-todos.
  namolnad
  #3597

• Fix type_contents_order initializer detection.
  StevenMagdy

• Fix autocorrect when there's no space between the tuple the in keyword
  on unneeded_parentheses_in_closure_argument rule.
  p-x9
  #3633

• Fix unused_capture_list, empty_enum_arguments, implicit_return and
  explicit_type_interface rules when using Swift 5.4.
  Marcelo Fabri
  #3615
  #3685

• Fix Xcode build logs with spaces in paths preventing analyze from running.
  adamawolf

0.43.1: Laundroformat

Breaking

• None.

Experimental

• None.

Enhancements

• None.

Bug Fixes

• Fix the File Length rule name.
  onato
  #3560

• Re-add --format flag to reformat Swift files using SourceKit.
  Only applied with --fix/--autocorrect.
  JP Simard
  #3571

0.43.0: Clothes Line Interface

Breaking

• The command line syntax has slightly changed due to migrating from the
  Commandant command line parsing library to swift-argument-parser.
  For the most part the breaking changes are all to make the syntax more
  unix compliant and intuitive to use. For example, commands such as
  swiftlint --help or swiftlint -h now work as expected.
  The help output from various commands has greatly improved as well.
  Notably: swiftlint autocorrect was removed in favor of
  swiftlint --fix.
  Previous commands should continue to work temporarily to help with the
  transition. Please let us know if there's a command that no longer
  works and we'll attempt to add a bridge to help with its transition.
  JP Simard

• Configuration files now consistently have their included/excluded
  relative file paths applied relative to their location in the file
  system. Previously the root configuration file applied these relative
  to the current working directory, but nested configurations applied
  these to their location in the file system.
  Frederick Pietschmann
  JP Simard

• The discarded_notification_center_observer is now opt-in due to some
  difficult to resolve false positives, such as
  #3498.
  JP Simard

Experimental

• None.

Enhancements

• Added allows_single_line option in multiline_parameters rule
  configuration. Defaults to true. This enforces parameters in a method
  with multiple parameters to always be in different lines.
  Otavio Cordeiro

• Support relative paths in compilation databases for SwiftLint analyzer
  rules.
  JP Simard

• Add opt-in rule discouraged_assert to encourage the use of
  assertionFailure() and/or preconditionFailure() over
  assert(false).
  Otavio Cordeiro

• Adds balanced_xctest_lifecycle opt-in rule to enforce balanced setUp
  and tearDown methods in a test class.
  Otavio Cordeiro
  #3452

• Tweak the auto-correction result console output for clarity.
  mokagio
  #3522

• Allow configuring related USRs to skip in UnusedDeclarationRule by
  specifying a list of USRs in the related_usrs_to_skip key.
  For example you might have custom source tooling that does something
  with types conforming to a procotol even if that type is never
  explicitly referenced by other code.
  JP Simard

• Make strong_iboutlet rule correctable.
  MaxHaertwig

• Add legacy_objc_type opt-in rule to warn against using
  bridged Objective-C reference types instead of Swift value types.
  Blake
  #2758

• Support Swift Playground control comments in the comment_spacing
  rule.
  Thomas Goyne

• [Internal] Integrate OS Signposts to help profile SwiftLint
  performance.
  jpsim

• Update CodeClimateReporter to produce relative paths.
  bmwalters

• Add Bool violation reporting in redundant_type_annotation.
  Artem Garmash
  #3423

• Add a new capture_variable analyzer rule to warn about listing a
  non-constant (var) variable in a closure's capture list. This
  captures the variable's value at closure creation time instead of
  closure call time, which may be unexpected.
  Laszlo Kustra

• Log references to a specified module when running the unused_import
  by setting the SWIFTLINT_LOG_MODULE_USAGE=<module-name> environment
  variable when running analyze.
  jpsim

• Add opt-in rule private_subject rule which warns against
  public Combine subjects.
  Otavio Cordeiro

Bug Fixes

• Fix custom_rules merging when the parent configuration is based on
  only_rules.
  Frederick Pietschmann
  #3468

• Fix misleading warnings about rules defined in the custom_rules not
  being available (when using multiple configurations).
  Frederick Pietschmann
  #3472

• Fix bug that prevented the reconfiguration of a custom rule in a child
  config.
  Frederick Pietschmann
  #3477

• Fix typos in configuration options for file_name rule.
  advantis

• Fix issue that prevented the inclusion of a configuration file from a
  parent folder.
  Frederick Pietschmann
  #3485

• Fix violation location and misplaced corrections for some function
  references in explicit_self rule.
  JP Simard

• Fix false positives with result builders in unused_declaration.
  JP Simard

• Find more unused declarations in unused_declaration.
  JP Simard

• Fix parsing xcode logs for analyzer rules for target names with
  spaces.
  JP Simard
  #3021

0.43.0-rc.4: Clothes Line Interface

This is a prerelease version. It won't be published to Homebrew or CocoaPods. But there are many other ways to install:

• Downloading the attached SwiftLint.pkg installer and launching it
• Downloading the attached portable_swiftlint.zip archive, extracting it and moving the binary from portable_swiftlint/swiftlint to /usr/local/bin or elsewhere in your PATH
• Using Mint: mint install realm/[email protected]
• Cloning and building from source: git clone https://github.com/realm/SwiftLint.git && cd SwiftLint && git checkout 0.43.0-rc.4 && make install

Changes from 0.43.0-rc.3: 0.43.0-rc.3...0.43.0-rc.4

Breaking

• The command line syntax has slightly changed due to migrating from the
  Commandant command line parsing library to swift-argument-parser.
  For the most part the breaking changes are all to make the syntax more
  unix compliant and intuitive to use. For example, commands such as
  swiftlint --help or swiftlint -h now work as expected.
  The help output from various commands has greatly improved as well.
  Notably: swiftlint autocorrect was removed in favor of
  swiftlint --fix.
  Previous commands should continue to work temporarily to help with the
  transition. Please let us know if there's a command that no longer
  works and we'll attempt to add a bridge to help with its transition.
  JP Simard

• Configuration files now consistently have their included/excluded
  relative file paths applied relative to their location in the file
  system. Previously the root configuration file applied these relative
  to the current working directory, but nested configurations applied
  these to their location in the file system.
  Frederick Pietschmann
  JP Simard

• The discarded_notification_center_observer is now opt-in due to some
  difficult to resolve false positives, such as
  #3498.
  JP Simard

Experimental

• None.

Enhancements

• Added allows_single_line option in multiline_parameters rule
  configuration. Defaults to true. This enforces parameters in a method
  with multiple parameters to always be in different lines.
  Otavio Cordeiro

• Support relative paths in compilation databases for SwiftLint analyzer
  rules.
  JP Simard

• Add opt-in rule discouraged_assert to encourage the use of
  assertionFailure() and/or preconditionFailure() over
  assert(false).
  Otavio Cordeiro

• Add opt-in rule private_subject rule which warns against
  public Combine subjects.
  Otavio Cordeiro

• Tweak the auto-correction result console output for clarity.
  mokagio
  #3522

• Allow configuring related USRs to skip in UnusedDeclarationRule by
  specifying a list of USRs in the related_usrs_to_skip key.
  For example you might have custom source tooling that does something
  with types conforming to a procotol even if that type is never
  explicitly referenced by other code.
  JP Simard

• Make strong_iboutlet rule correctable.
  MaxHaertwig

• Add legacy_objc_type opt-in rule to warn against using
  bridged Objective-C reference types instead of Swift value types.
  Blake
  #2758

• Support Swift Playground control comments in the comment_spacing
  rule.
  Thomas Goyne

• [Internal] Integrate OS Signposts to help profile SwiftLint
  performance.
  jpsim

• Update CodeClimateReporter to produce relative paths.
  bmwalters

• Add Bool violation reporting in redundant_type_annotation.
  Artem Garmash
  #3423

• Log references to a specified module when running the unused_import
  by setting the SWIFTLINT_LOG_MODULE_USAGE=<module-name> environment
  variable when running analyze.
  jpsim

Bug Fixes

• Fix custom_rules merging when the parent configuration is based on
  only_rules.
  Frederick Pietschmann
  #3468

• Fix misleading warnings about rules defined in the custom_rules not
  being available (when using multiple configurations).
  Frederick Pietschmann
  #3472

• Fix bug that prevented the reconfiguration of a custom rule in a child
  config.
  Frederick Pietschmann
  #3477

• Fix typos in configuration options for file_name rule.
  advantis

• Fix issue that prevented the inclusion of a configuration file from a
  parent folder.
  Frederick Pietschmann
  #3485

• Fix violation location and misplaced corrections for some function
  references in explicit_self rule.
  JP Simard

• Fix false positives with result builders in unused_declaration.
  JP Simard

0.43.0-rc.3: Clothes Line Interface

This is a prerelease version. It won't be published to Homebrew or CocoaPods. But there are many other ways to install:

• Downloading the attached SwiftLint.pkg installer and launching it
• Downloading the attached portable_swiftlint.zip archive, extracting it and moving the binary from portable_swiftlint/swiftlint to /usr/local/bin or elsewhere in your PATH
• Using Mint: mint install realm/[email protected]
• Cloning and building from source: git clone https://github.com/realm/SwiftLint.git && cd SwiftLint && git checkout 0.43.0-rc.3 && make install

Changes from 0.43.0-rc.2: 0.43.0-rc.2...0.43.0-rc.3

Breaking

• The command line syntax has slightly changed due to migrating from the
  Commandant command line parsing library to swift-argument-parser.
  For the most part the breaking changes are all to make the syntax more
  unix compliant and intuitive to use. For example, commands such as
  swiftlint --help or swiftlint -h now work as expected.
  The help output from various commands has greatly improved as well.
  Notably: swiftlint autocorrect was removed in favor of
  swiftlint --fix.
  Previous commands should continue to work temporarily to help with the
  transition. Please let us know if there's a command that no longer
  works and we'll attempt to add a bridge to help with its transition.
  JP Simard

Experimental

• None.

Enhancements

• Added allows_single_line option in multiline_parameters rule
  configuration. Defaults to true. This enforces parameters in a method
  with multiple parameters to always be in different lines.
  Otavio Cordeiro

• Support relative paths in compilation databases for SwiftLint analyzer
  rules.
  JP Simard

• Add opt-in rule discouraged_assert to encourage the use of
  assertionFailure() and/or preconditionFailure() over
  assert(false).
  Otavio Cordeiro

• Add opt-in rule private_subject rule which warns against
  public Combine subjects.
  Otavio Cordeiro

• Allow configuring related USRs to skip in UnusedDeclarationRule by
  specifying a list of USRs in the related_usrs_to_skip key.
  For example you might have custom source tooling that does something
  with types conforming to a procotol even if that type is never
  explicitly referenced by other code.
  JP Simard

Bug Fixes

• Fix typos in configuration options for file_name rule.
  advantis

• Fix violation location and misplaced corrections for some function
  references in explicit_self rule.
  JP Simard

0.43.0-rc.2: Clothes Line Interface

This is a prerelease version. It won't be published to Homebrew or CocoaPods. But there are many other ways to install:

• Downloading the attached SwiftLint.pkg installer and launching it
• Downloading the attached portable_swiftlint.zip archive, extracting it and moving the binary from portable_swiftlint/swiftlint to /usr/local/bin or elsewhere in your PATH
• Using Mint: mint install realm/[email protected]
• Cloning and building from source: git clone https://github.com/realm/SwiftLint.git && cd SwiftLint && git checkout 0.43.0-rc.2 && make install

Changes from 0.43.0-rc.1: 0.43.0-rc.1...0.43.0-rc.2

Breaking

• The command line syntax has slightly changed due to migrating from the
  Commandant command line parsing library to swift-argument-parser.
  For the most part the breaking changes are all to make the syntax more
  unix compliant and intuitive to use. For example, commands such as
  swiftlint --help or swiftlint -h now work as expected.
  The help output from various commands has greatly improved as well.
  Notably: swiftlint autocorrect was removed in favor of
  swiftlint --fix.
  Previous commands should continue to work temporarily to help with the
  transition. Please let us know if there's a command that no longer
  works and we'll attempt to add a bridge to help with its transition.
  JP Simard

Experimental

• None.

Enhancements

• Support relative paths in compilation databases for SwiftLint analyzer
  rules.
  JP Simard

• Add opt-in rule discouraged_assert to encourage the use of
  assertionFailure() and/or preconditionFailure() over
  assert(false).
  Otavio Cordeiro

Bug Fixes

• Fix typos in configuration options for file_name rule.
  advantis

• Fix violation location and misplaced corrections for some function
  references in explicit_self rule.
  JP Simard

0.43.0-rc.1: Clothes Line Interface

This is a prerelease version. It won't be published to Homebrew or CocoaPods. But there are many other ways to install:

• Downloading the attached SwiftLint.pkg installer and launching it
• Downloading the attached portable_swiftlint.zip archive, extracting it and moving the binary from portable_swiftlint/swiftlint to /usr/local/bin or elsewhere in your PATH
• Using Mint: mint install realm/[email protected]
• Cloning and building from source: git clone https://github.com/realm/SwiftLint.git && cd SwiftLint && git checkout 0.43.0-rc.1 && make install

Breaking

• The command line syntax has slightly changed due to migrating from the
  Commandant command line parsing library to swift-argument-parser.
  For the most part the breaking changes are all to make the syntax more
  unix compliant and intuitive to use. For example, commands such as
  swiftlint --help or swiftlint -h now work as expected.
  The help output from various commands has greatly improved as well.
  Notably: swiftlint autocorrect was removed in favor of
  swiftlint --fix.
  Previous commands should continue to work temporarily to help with the
  transition. Please let us know if there's a command that no longer
  works and we'll attempt to add a bridge to help with its transition.
  JP Simard

Experimental

• None.

Enhancements

• Support relative paths in compilation databases for SwiftLint analyzer
  rules.
  JP Simard

Bug Fixes

• Fix typos in configuration options for file_name rule.
  advantis