CHANGELOG.md

Change Log

0.40.1 (2019-03-16)

• Fixed bug where --trailingclosures would incorrectly remove parentheses before an opening brace
• Fixed SwiftFormat for Xcode appearance when running in dark mode on macOS 10.14 (Mojave)

0.40.0 (2019-03-14)

• Added --trailingclosures option for whitelisting functions that should use trailing closure syntax
• The trailingClosures rule now only applies to a safe subset of methods by default
• Enabled trailingClosures rule by default (use --disable trailingClosures to opt out)
• SwiftFormat now infers values to use for indentation, linebreaks, etc. if the associated rules are disabled
• Added new yodaConditions rule that moves constant values to the right-hand-side of expressions
• The --dryrun and --lint modes now only list modified files when running in --verbose mode
• Added an automatic timeout for buggy rules, or if a rule gets stuck when processing malformed input
• Fixed a bug in the wrapArguments that could corrupt argument lists containing commented lines
• Fixed bug where wrapArguments sometimes rewrapped parenthesized expressions
• Rule documentation is now available programmatically via the command-line
• Improved command-line UI, providing additional feedback and more detail in error messages
• Simplified SwiftFormat for Xcode app interface (big thanks to @VinceBurn for the UI implementation)

0.39.5 (2019-03-06)

• Fixed bug in braces rule where closing brace was not wrapped onto a new line
• Fixed bug with braces rule affecting closures inside a switch statements
• Relative indentation is now preserved inside multiline comment blocks
• Fixed indenting of switch cases using Swift 5's new @unknown attribute
• Fixed some errors in documentation and warning messages
• The .swift-version file parser now permits cases like 3.0-PREVIEW-4
• Fixed the performance test target, which was broken in Xcode 10.1

0.39.4 (2019-03-03)

• Added support for Swift 5's new raw string syntax
• Now correctly detects .swiftformat and .swift-version files placed anywhere in the input path
• The swiftformat command-line tool will no longer fail with an error if all matched files were ignored
• Fixed bug where braces rule failed to correctly apply Allman indenting to switch statements
• Disabled the isEmpty rule again by default (you can enable it using --enable isEmpty)

0.39.3 (2019-02-15)

• Fixed a bug with hoistPatternLet rule for switch cases without a space
• Fixed a bug in the typeSugar rule when referencing nested types
• The .swiftformat configuration file type is now associated with the SwiftFormat for Xcode app

0.39.2 (2019-02-14)

• Fixed bug with indenting multi-line strings (introduced in 0.39.1)
• Fixed redundantParens bug (introduced in 0.39.1)
• Corrected documentation for specifiers rule

0.39.1 (2019-02-12)

• Fixed some cases where redundantParens failed to remove redundant parentheses
• Fixed rare instance where indent rule could incorrectly indent multiline string literals
• Added Rules.md file to the repository, providing permalinks to the documentation for each rule
• Rules documentation is now generated automatically from the SwiftFormat source code
• The Xcode Extension app now shows tooltips for rules in the Rules tab
• Fixed unit test failure in certain timezones

0.39.0 (2019-02-04)

• Added redundantFileprivate rule, which replaces fileprivate with private where possible
• Added redundantExtensionACL rule, to remove redundant access level keywords inside extensions
• Added typeSugar rule to replace Array, Dictionary and Optional types with shorthand forms
• Added redundantObjc rule, which removes unnecessary @objc annotations
• Added —selfrequired option for excluding @autoclosure arguments from redundantSelf rule
• The isEmpty rule is now enabled by default, as the risk of false positives is fairly low
• Enhanced the fileHeader rule with macros for file name and creation date
• Added AppleScript integration instructions (thanks to @Lutzifer)

0.38.0 (2019-01-29)

• Added support for building, running and testing SwiftFormat on Linux
• Added --swiftversion option for version-specific features
• Added anyObjectProtocol rule to replace class with AnyObject in protocol declarations
• Added redundantBreak rule that removes unneeded breaks from switch cases
• Added strongifiedSelf rule which removed backticks in if let ``self`` = self {}
• The redundantReturn rule now removes void returns as well as ones that return a value
• Renamed some option values for consistency
• The Xcode Extension app now shows tooltips on Options tab

0.37.5 (2019-01-24)

• Fixed another regression in the redundantReturn rule

0.37.4 (2019-01-22)

• Fixed a regression in the redundantReturn rule, causing return to be removed when it shouldn't

0.37.3 (2019-01-19)

• Fixed bug in wrapArguments rule when using the after-first mode
• The elseOnSameLine rule no longer discards comments between clauses
• Fixed bug with redundantBackticks incorrectly stripping backticks inside keyPaths
• Wrapped closure chains inside a var declaration are now wrapped correctly
• Fixed some cases where redundantReturn rule was not being applied
• Fixed bug with braces rule affecting nested closures

0.37.2 (2019-01-01)

• Fixed codesign issues with bundled binaries
• Significantly improved performance when using globs/wildcards in --exclude rules
• Added glob syntax documentation to README file

0.37.1 (2018-12-18)

• Fixed a bug in the isEmpty rule when used inside a function argument
• Fixed bug where log messages included ANSI codes in non-terminal stderr output

0.37.0 (2018-12-17)

• Added isEmpty rule, which converts instances of if foo.count == 0 {} to if foo.isEmpty (disabled by default)
• Added redundantLetError rule, which removes let error from catch let error {} because it's implict
• The todos rule now converts /// MARK: to // MARK:, as the former isn't recognized by Xcode
• Fixed problem with the peformance tests target not building locally in Xcode 10.1

0.36.0 (2018-12-15)

• Fixed --exclude globs matching path prefix instead of whole path (this may break exclude paths that relied on the bug)
• Added new andOperator rule for replacing && with , in if, while and guard statements
• Added init-only option for the --self argument, to enable explicit self only inside initializers
• Significantly improved performance when using complex --exclude rules
• Fixed infinite loop bug in redundantSelf rule relating to properties named "type"
• Fixed caching mechanism which was broken by an earlier Swift update
• Fixed spurious error message when --exclude option matched no files

0.35.10 (2018-12-13)

• Removed spurious --verbose argument warning
• Non-swift files are no longer logged as skipped in --verbose mode
• Fixed bug with comment indenting inside switch statements
• Fixed crash in wrapArguments rule

0.35.9 (2018-11-28)

• Fixed incorrect formatting of generic arguments containing function types
• Fixed inconsistent capitalization of the swiftformat executable in Package.swift

0.35.8 (2018-11-23)

• Updated void rule to support changes introduced in Swift 4
• Fixed a bug where #endif could be incorrectly indented if followed by a comment
• Added --importgrouping option to group imports inside by @testable
• Fixed a potential bug when loading options in the SwiftFormat for Xcode GUI

0.35.7 (2018-10-11)

• Fixed error when tokenizing an enum declaration with a where clause
• Fixed bug with spacing around an infix operator used before the #file keyword
• Fixed bug where self was incorrectly removed inside property getters/setters

0.35.6 (2018-09-29)

• Fixed bug where self could be incorrectly removed inside #if blocks
• Fixed some bugs when inserting or removing self inside didSet handlers
• The strongOutlets rule now ignores properties named delegate or dataSource
• The wrapCollections rule now behaves more consistently with nested collection literals
• Added "Open Recent" menu item to the SwiftFormat for Xcode app

0.35.5 (2018-09-08)

• Fixed a bug in redundantParens rule that affected closure types that take a single tuple argument

0.35.4 (2018-09-05)

• Added glob support (unix-style wildcard file pattern matching) for --exclude paths
• Added --quiet option to disable noncritical output messages when using the swiftformat CLI
• Fixed a bug where an import func ... statement caused the redundantSelf rule to loop indefinitely
• Disabled ANSI formatting for stderr if stdout is pointing to a terminal interface but stderr isn't
• SwiftFormat is now more tolerant of white space around paths in a .swiftformat configuration file
• A .swiftformat file generated by SwiftFormat will now always end with a linebreak

0.35.3 (2018-08-21)

• Added --closingparen option for finer control over function argument wrapping
• Fixed bug in wraparguments/collections options inference
• Skipped files are now logged when running with the --verbose option
• SwiftFormat no longer mangles XCUITest tokens in comments by introducing spaces
• Dictionary values wrapped onto a different line from the key are now indented correctly
• Fixed a bug where automatic removal of spaces around range operators could introduce ambiguity
• Disabled ANSI formatting for non-terminal output
• Fixed typo in command-line help

0.35.2 (2018-08-10)

• Fixed a bug where --rules command incorrectly showed all rules as disabled
• Added close button to SwiftFormat for Xcode application window

0.35.1 (2018-08-08)

• Added support for hierarchical config files with a standard naming convention (see README for details)
• You can now specify excluded file paths and file options such as --symlinks in configuration files
• Standard .swiftformat configuration files are now visible in the SwiftFormat for Xcode open/save dialogs
• The .swiftformat configuration file can now contain comments, which are marked using a hash (#) character
• Improved cache invalidation. It should no longer be necessary to disable the cache in some cases
• Removed Indent from the SwiftFormat for Xcode options, as this is configured using Xcode project settings
• Fixed indent inference (really this time!)

0.35.0 (2018-08-04)

• Added --config argument for loading an external config file using the command-line tool
• The --inferoptions command can now write the result to a config file using the --output option
• Added emptyBraces rule for removing blank lines inside empty {} pairs
• Fixed handling of spaces and other special characters inside the --header option when using config files
• Fixed parsing and serialization of --header option in Xcode Source Editor Extension
• Fixed a bug in the specifiers rule affecting enum cases whose name matches a specifier
• Fixed bug where redundantSelf could incorrectly remove self from a closure instead a case with a where clause
• Fixed indent inference, which would previously calculate the wrong indent value

0.34.1 (2018-08-01)

• Added // swiftformat:disable:next directive for temporarily disabling a rule on just the following line
• Fixed bug where the // swiftformat:disable all directive could result in file contents being stripped
• Fixed a bug where --verbose mode incorrectly reported which rules were applied to each file
• Reset to Defaults menu item in SwiftFormat for Xcode now correctly resets the Infer Format Options setting

0.34.0 (2018-07-30)

• You can now configure format options for the Xcode Source Editor Extension (big thanks to @vinceburn for this feature)
• Restored ability to build the swiftformat command-line app using Xcode 9.2 on macOS Sierra
• Xcode Source Editor Extension no longer fails when using Playgrounds with multiple pages
• The --wrapelementss option has been renamed to --wrapcollections
• Added new --wraparguments preserve and --wrapcollections preserve options
• Added --fractiongrouping & --exponentgrouping options
• Improved formatting of Xcode Source Editor Extension error messages
• Fixed a bug where parens were incorrectly removed after an image literal

0.33.13 (2018-07-25)

• Fixed bug where required parens were incorrectly removed from around a closure type
• Added --lint mode that is similar to --dryrun but returns a non-zero exit code if any files require formatting
• The swiftformat command-line tool now returns a non-zero exit code in the event of a fatal error while formatting

0.33.12 (2018-07-23)

• Added swiftformat:disable all and swiftformat:enable all directives
• Fixed a bug where redundant parens were not always removed correctly
• Fixed errors when parsing custom operators such as <>, |> or <<>>
• Fixed divide-by-zero crash when specifiying number groupings with a value of zero
• Rules are now always applied in alphabetical order to ensure consistency
• Fixed the --conflictmarkers command-line option

0.33.11 (2018-07-05)

• Fixed a bug where --inferoptions would always set --self to "insert" (this also affected the Xcode extension)
• Fixed bug with redundantSelf when parsing nested switch statements
• Fixed a bug in the redundantParens rule that incorrectly removed parens after an indexed tuple (e.g. foo.1(bar))
• Spaces are now correctly removed around parens or square brackets after an indexed tuple

0.33.10 (2018-07-03)

• Fixed a bug where sortedImports rule could strip code between import statements
• Fixed a case where self was removed incorrectly inside a switch case condition

0.33.9 (2018-07-01)

• Fixed incorrect formatting of != operator when used as a function reference
• Fixed some additional cases where self was not inserted or removed correctly

0.33.8 (2018-06-25)

• Fixed issue where self could be incorrectly inserted inside a where clause
• Fixed a bug where generics could be misidentified as greater-than / less-than operators
• Fixed formatting of #if blocks around case statements
• The hoistPatternLet rule no longer hoists the let or var` when there are no named variables
• Fixed nondeterministic behavior when applying spacing rules
• Fixed warning when compiling with Xcode 10 beta

0.33.7 (2018-05-18)

• Fixed an issue where headerdoc comments could be stripped by fileHeader rule
• Fixed a bug with handling absolute paths

0.33.6 (2018-04-18)

• Fixed a bug where a space could be incorrectly removed after a try? or as? operator
• Both the SwiftFormat command line tool and framework can now be built using Swift Package Manager
• Added .pre-commit-hook.yaml file for checking that formatter has been applied when committing
• The SwiftFormat command line tool can now be installed using Mint (see README for details)

0.33.5 (2018-03-16)

• Fixed critical bug in sortedImports where code between blocks of import statements could be removed
• Fixed bug where wrapped arguments could be double-indented under some circumstances

0.33.4 (2018-02-26)

• Fixed a bug in the unusedArguments rule that could caused type names to get mangled in closure argument lists
• Fixed bug in sortedImports that could cause import statement to be moved above the file header comment

0.33.3 (2018-02-21)

• Fixed a bug in the duplicateImports rule that caused imports of specific types from the same module to be incorrectly stripped
• Fixed bugs with how the duplicateImports and sortedImports rules handle imports separated by semicolons or spanning multiple lines
• Fixed a bug with redundantParens rule incorrectly removing parens around tuples whose first and last elements were closures
• Fixed a bug where the redundantParens rule incorrectly removed parens inside compound expressions

0.33.2 (2018-02-20)

• The fileHeader rule can now be disabled in an individual file by prefixing header with // swiftformat:disable fileHeader
• Fixed a bug in the specifiers rule that could mangle code if the previous line ended with certain identifiers
• Fixed typo in --insertlines deprecation warning message

0.33.1 (2018-02-10)

• Fixed bug preventing host app rule configuration from being read by the Xcode extension
• Added duplicateImports rule for removing duplicate import statements automatically
• Deprecated --insertlines/--removelines options - enable or disable the specific rules instead
• Fixed deprecation warnings in Swift 4.1 / Xcode 9.3

0.33.0 (2018-02-01)

• Added rules configuration UI to the Xcode Source Editor Extension (thanks @vinceburn and @tonyarnold!)
• Added blankLinesAtStartOfScope rule for removing leading blank lines at the start of functions, classes, etc
• Fixed indenting of blank lines within commented code blocks
• Added CONTRIBUTING.md

0.32.2 (2018-01-12)

• Fixed bug with parsing spaces inside interpolated values in multiline string literals
• Added instructions for using SwiftFormat on a CI server with Danger

0.32.1 (2017-12-07)

• Added --dryrun option, for testing SwiftFormat without making any file changes
• Fixed Xcode plugin, which was not deployed correctly in the previous release
• Fixed spaceAroundOperators rule not inserting space after a switch case or default clause colon

0.32.0 (2017-11-29)

• Added swiftformat: comment directives for enabling/disabling rules inside a source file (see README for details)
• Added blankLinesAroundMark rule, which inserts a blank line before and after a // MARK: comment
• When using the --self insert option, self is now inserted automatically in more places than it could be before
• Fixed some bugs in the redundantSelf rule that caused self not to be removed in some cases when it should
• Exposed the command-line formatting functions as part of the public API when using the SwiftFormat framework

0.31.0 (2017-11-24)

• Switched to a more conventional MIT license
• Added strongOutlets rule that removes weak from @IBOutlet properties in accordance with Apple guidelines
• Added sortedImports rule for sorting import statements alphabetically
• Fixed warnings in Xcode 9.1 and dropped support for compiling framework with Swift 3.1
• Fixed a bug where a double quote was incorrectly inserted into multiline strings
• Fixed a bug where the --comments ignore option was ignored for comments inside switch statements
• Code that has been temporarily commented out should no longer be re-indented

0.30.2 (2017-11-19)

• Fixed incorrect indenting of case statements for cases with where clauses containing < operator
• Fixed bug where parens were incorrectly removed around closures in loop or branch conditions
• Added compatibility workaround for self being incorrectly removed in tests that use the Nimble framework

0.30.1 (2017-11-10)

• Fixed error when parsing a subscript with default value inside a switch statement
• Nil default values are no longer removed inside Codable structs/classes, as this can break the implementation

0.30.0 (2017-10-27)

• Space is now inserted between the operator name and opening paren in an operator function declaration
• Added --operatorfunc option to control whether operator should be followed by a space in a function declaration
• Added --elseposition option to control whether else, catch & while should appear on same line as preceding }
• Added --indentcase option to control whether case statements should be indented inside a switch
• Comments immediately before a default: clause are now indented level with the default keyword
• Fixed bug where backticks would be incorrectly removed when using Any as an identifier
• Error messages are now displayed correctly in the Xcode editor extension
• Added test coverage statistics using Slather and Coveralls

0.29.9 (2017-10-22)

• Fixed critical bug where hoistPatternLet rule could corrupt tuples in a switch case clause
• Comments immediately before a case statement are now indented level with the case

0.29.8 (2017-10-11)

• Fixed bug where space was incorrectly removed around postfix/suffix range operators

0.29.7 (2017-10-08)

• Added support for Swift 4 keyPath syntax

0.29.6 (2017-09-21)

• Fixed bug in hoistPatternLet rule when formatting case let patterns with outer parens
• The redundantParens rule now correctly removes the outer parens in the aforementioned case
• Fixed performance regression introduced in 0.29.5

0.29.5 (2017-09-04)

• Fixed bounds crash when parsing an empty string literal at the end of a file
• SwiftFormat now compiles without modification in Xcode 9 using Swift 3.2 or 4.0

0.29.4 (2017-08-21)

• Fixed a bug where self could be incorrectly inserted if local variable is declared inside an #if block

0.29.3 (2017-07-31)

• Added support for Swift 4's multi-line string literal syntax
• Fixed a bug with handling inline comments inside an array literal

0.29.2 (2017-07-03)

• Fixed critical bug where space was incorrectly inserted around unary range operators
• Fixed bug where self could be incorrectly inserted before type(of:) if using --self insert option
• Fixed space being incorrectly inserted after postfix operator inside a subscript or collection literal
• Wrapped case is Type statements are now indented correctly

0.29.1 (2017-06-29)

• Fixed bug where redundantInit rule removed a required init in some cases

0.29.0 (2017-06-20)

• Changed specifier order from private(set) public to public private(set)
• Added redundantInit rule to remove explict init references where they aren't needed
• Fixed indentation of class declarations with protocols wrapped onto multiple lines

0.28.6 (2017-05-31)

• Fixed bug where consecutive if statements containing < and > were misidentified as a generic argument list
• Fixed space being removed between a closure capture list and subsequent arguments under some circumstances
• Fixed extra space added before prefix operators inside brackets or parens

0.28.5 (2017-05-14)

• The redundantParens rule no longer removes parens after a function call inside a where clause
• Fixed bug where nil default value was incorrectly removed from lazy var declarations

0.28.4 (2017-04-26)

• Fixed bug where self was incorrectly inserted inside an if case let condition
• Fixed incorrect insertion of self inside a pattern let clause

0.28.3 (2017-04-20)

• Fixed bug where self was incorrectly removed in a closure immediately after a var declaration
• Fixed incorrect insertion of self before a subscript get or set block
• Fixed incorrect insertion of self after an import class statement
• Fixed bug where self was not inserted after a return statement

0.28.2 (2017-03-30)

• Fixed error when parsing an enum declaration inside a switch statement
• Fixed incorrect removal of backticks when accessing an overloaded Type member

0.28.1 (2017-03-28)

• Fixed a bug where redundantSelf rule incorrectly removed self after a repeat...while loop
• Fixed some bugs where --self insert option wrongly added self in places it shouldn't have
• Improved the documentation of rules and options in the README file and command-line help

0.28.0 (2017-03-24)

• Added --self insert option to optionally insert self when accessing member variables/functions
• The --self and --stripunusedargs arguments can now be inferred automatically using --inferoptions
• SwiftFormat now detects and rejects source files that contain merge conflict markers
• Added --conflictmarkers option to optionally ignore conflict markers (e.g. if they clash with a custom operator)
• The redundantSelf rule now correctly strips self from computed var setters and getters
• The redundantSelf rule now handles static and class variables/functions correctly
• Fixed a potential bug where command-line tool might get stuck in an infinite loop
• Fixed a bug where a invalid source code could causes variables to be incorrectly removed
• Fixed some bugs in error reporting

0.27.1 (2017-03-21)

• Fixed trailing space that was incorrectly added to blank lines when redundantSelf rule is disabled
• Fixed a bug where self could be incorrectly removed when using nested function declarations
• Fixed a bug where self could be incorrectly removed inside class functions
• Improved formatting and inferoptions performance

0.27.0 (2017-03-17)

• Added --exclude command-line option for excluding specific files or folders from formatting
• Improved grouping and logging of formatting errors when running in --verbose mode
• Fixed a bug when using prefix operators with with shorthand class or enum members like -.someValue
• Fixed some more cases where self was incorrectly removed, or wasn't removed when it should have been
• Fixed some cases where backtick escaping was incorrectly removed around reserved words
• Fixed a bug where --patternlet inline could incorrectly move let inside a tuple assignment
• Fixed parsing of custom operators containing chevrons, e.g. <?>
• Fixed redundant return not being removed from closures in a var declaration
• Fixed a performance regression introduced in version 0.26.2
• Fixed bug where Void() literal was replaced by ()() when using --empty tuple

0.26.2 (2017-03-15)

• Fixed critical bug where return was incorrectly removed after a #selector or #keyPath directive
• Fixed several more critical cases where self could be incorrectly removed
• Fixed case where identifier could be mistaken for a keyword after self was removed
• Fixed some cases where self should have been removed but wasn't
• Added tvOS support to the podspec

0.26.1 (2017-03-14)

• Fixed critical bug where self could be incorrectly removed inside lazy var declarations

0.26.0 (2017-03-13)

• Added redundantSelf rule for removing the self prefix from member references in cases where it isn't needed
• Added --verbose command-line option for tracking which rules were applied to each file
• Added --patternlet command-line option for toggling behavior of the hoistPatternLet rule
• Fixed bug where escaped arguments were treated as unused
• Fixed some unusedArguments cases
• The redundantBackticks rule now handles more cases

0.25.2 (2017-03-09)

• Fixed bug where return keyword could be incorrectly removed inside a conditional statement
• Fixed bug where backtick escaping would be incorrectly removed from Self

0.25.1 (2017-03-08)

• Fixed bug where unused arguments in a failable initializer could be incorrectly formatted
• Fixed bug where backtick escaping would be incorrectly removed from certain reserved identifiers

0.25.0 (2017-03-07)

• The stripHeaders rule is now fileHeaders, which can strip or replace header comments with a template (see README)
• Added hoistPatternLet rule that moves let and var to the beginning of switch/case patterns
• Added redundantReturn rule that strips the return keyword from single-line closures
• Added redundantBackticks rule that removes unnecessary backtick escaping of keywords

0.24.7 (2017-02-28)

• Fixed a bug where switch cases containing a ..< operator were parsed incorrectly, resulting in wrong indentation
• Fixed a potential bug where source code could be truncated after an error when running with --fragment enabled
• Command-line tool installation via CocoaPods no longer requires a minimum deployment target of iOS 9 / macOS 10.11

0.24.6 (2017-02-16)

• Fixed critical bug where automatic removal of Void return type in closures could alter the type signature
• Command-line tool can now be installed via CocoaPods

0.24.5 (2017-02-12)

• Fixed critical bug where trailing commas were incorrectly added to array or dictionary type declarations

0.24.4 (2017-02-09)

• Fixed format rules not being applied when processing input from stdin
• Fixed allman brace formatting of optional computed vars
• Allman brace rule now removes the blank line immediately after an opening brace

0.24.3 (2017-01-26)

• Fixed critical bug where unused inout closure arguments were mangled
• Fixed critical bug where comma was incorrectly inserted into subscript expressions
• Fixed critical bug where functions named "get" could be incorrectly stripped
• Unused arguments are now handled correctly in init and subscript functions
• Fixed bug where _ was doubled up for unused closure arguments

0.24.2 (2017-01-20)

• Unused arguments are now handled correctly in non-Void functions
• Fixed another bug where keywords used as function argument names were not parsed correctly
• Fixed bug when parsing generics containing a & protocol-combining operator
• Fixed bug where parsing error location was reported incorrectly

0.24.1 (2017-01-19)

• Fixed crash in Xcode extension when formatted file has no changes
• Fixed caching bug that meant enabled/disabled rules were not taken into account
• Unix shebang/hashbang directive at start of a source file is no longer treated as an error

0.24 (2017-01-18)

• Fixed a critical bug where closure arguments could be mangled by the unusedArguments rule
• Added trailingClosures rule, to automatically convert closure arguments to trailing closure syntax
• Added --enable option to enable optional rules such as trailingClosures (which is disabled by default)
• Added --stripunusedargs option to provide more fine-grained control of the unusedArguments rule
• Added --decimalgrouping, --hexgrouping, --binarygrouping and --octalgrouping options
• Added --exponentcase option for controlling the case of "e" in exponential literals, e.g. 3.4e-5
• Merged hexLiterals rule into new numberFormatting rule that handles case and grouping of numbers
• Renamed --hexliterals option to --hexliteralcase
• The void rule now converts (_: Void) to () automatically
• The redundantParens rule now removes empty () before a trailing closure
• Fixed some bugs with floating-point hex literal support
• Fixed bug where keywords used as function argument names were not parsed correctly
• Added Swift Package Manager support

0.23.1 (2017-01-14)

• Fixed critical bug where closure return types could be mangled by the unusedArguments rule
• Fixed issue where console text appeared as black instead of the user's chosen default color

0.23 (2017-01-09)

• You can now specify a whitelist of specific rules to apply using the --rules option
• Input files are now processed concurrently, yielding a ~2x speed improvement
• SwiftFormat now continues if it encounters an error when processing multiple files
• Improved error messaging, and added color-coding to the command-line output
• --inferoptions now accepts multiple space-delimited file paths, or piped input, just like formatting
• redundantVoidReturnType now removes Void return from closures as well as ordinary functions
• unusedArguments now works on closures as well as ordinary functions
• unusedArguments is now more effective at detecting when an argument is unused
• Fixed crash in wrapArguments rule due to linebreak being incorrectly removed after a single-line comment
• Format rules displayed using the --rules option are now sorted alphabetically

0.22 (2017-01-03)

• Fixed critical bug where >= operator was misidentified as end of generic argument list
• Added redundantRawValues rule to remove string enum literals that match the associated case name
• Added redundantVoidReturnType rule to remove unnecessary Void return type from function declarations
• Added unusedArguments rule, to replace unused arguments in function declarations with an underscore
• Fixed bug with --inferoptions and argument wrapping
• Fixed bug where extra space was added inside empty TODO: comments

0.21 (2016-12-19)

• Added redundantLet rule to remove unnecessary let keyword in statements like let _ = foo()
• Added redundantPattern rule to simplify wildcard patterns like .foo(_, _) to just .foo
• Rules are now run repeatedly until no changes are detected, fixing an issue where changes could be missed
• Fixed a bug where extra space was inserted between ? and . in optional chaining expressions
• A space is no longer added between a comment and the following comma
• Fixed some performance regressions

0.20 (2016-12-09)

• Added redundantNilInit rule, to remove unnecessary nil initialization of Optional vars
• The trailingCommas rule now removes trailing commas for inline array literals
• Fixed bug in void rule when handling chains of throwing functions
• Fixed some performance regressions

0.19 (2016-12-02)

• Fixed a critical bug where redundantParens rule failed to insert space before a prefix operator
• Fixed a crash when encountering generic arguments followed by ...
• Added --disable option for individually disabling rules without needing to recompile
• Added --rules command to display all the supported rules (useful in conjunction with --disable)
• Added --wraparguments option for controlling how function arguments are wrapped
• Added --wrapelements option for controlling how array and dictionary elements are wrapped
• Added --symlinks option for specifying if symlinks/aliases should be followed and formatted
• Fixed bug where symlinks to Swift files would be replaced by a copy of the file

0.18 (2016-11-17)

• Added --inferoptions command line argument for auto-configuring format options from existing source
• Added --ifdef command line argument for controlling how #if...#endif clauses are indented
• Added --hexliterals command line argument for specifying the case to use for hex literals
• Added redundantGet rule to remove unneeded get {} clause in read-only computed properties
• Fixed bug where redundantParens rule merged identifiers on either side of a removed paren
• redundantParens now removes unneeded parens from expressions and closure arguments

0.17.2 (2016-11-11)

• Fixed critical bug with redundantParens rule removing required parens around a closure
• Fixed bug with indenting of wrapped closures after a var declaration

0.17.1 (2016-11-09)

• Xcode Source Editor Extension now works with Playground files
• Fixed operator being incorrectly formatted when file ends with a single-line comment
• Fixed bug where the space at the start of a single line comment could increase after each format
• Fixed bug where --cache clear just ignored cache without actually clearing it
• Added --cache ignore option, which replicates previous --cache clear behavior

0.17 (2016-11-08)

• Added cache, allowing SwiftFormat to skip formatting for files that haven't changed
• Added stripHeaders rule to remove Xcode's copyright header comments (off by default)
• Disabled linebreakAtEndOfFile rule when formatted text is a fragment
• Fixed bug where generics were wrongly formatted if followed by a greater-than sign in the same file
• Fixed space incorrectly added after #available, #colorLiteral, etc
• Fixed several bugs with indenting of blocks containing wrapped lines

0.16.4 (2016-11-07)

• SwiftFormat is now ~3X faster!
• Fixed bug with spacing after an @convention() attribute
• Fixed bug where the space at the start of a multi-line comment could increase after each format
• Fixed bug where wrong indent was applied to wrapped array literal values
• Fixed bug where K&R indenting would remove the linebreak before an inline block

0.16.3 (2016-11-03)

• Fixed bug with operators containing chevrons
• Fixed wrong indent after where statement in switch case

0.16.2 (2016-11-03)

• Fixed bug with spacing of deeply nested generic arguments, or generic operator functions
• Fixed spacing of @autoclosure(escaping) syntax (only used in Swift 2.2)
• Fixed bug where (Void) throws -> Void was handled incorrectly

0.16.1 (2016-11-03)

• Fixed critical bug where redundantParens would remove parens from tuple in switch condition
• Fixed incorrect spacing around attributes that have arguments, e.g. @convention(block)
• --comments ignore command line option now disables leading space insertion in single-line comments

0.16 (2016-11-02)

• Added redundantParens rule to remove parens around if, while and switch conditions
• Added ability to specify multiple file paths for processing in a single command
• Fixed a bug with the formatting of repeat ... while loops
• Added performance tests
• API refactoring

0.15 (2016-10-27)

• Added allman command line option to enable Allman-style indenting instead of default K&R style
• Added removelines command line option to disable automatic removal of blank lines
• Added insertlines command line option to disable automatic blank line insertion
• Added trimwhitespace command line option for disabling truncation of blank lines
• Added comments command line option for disabling indenting of comments
• Added experimental command line option for opting-in to bleeding-edge features
• Fixed broken commas command line option from version 0.14
• Made blankLinesBetweenScopes rule less aggressive

0.14 (2016-10-21)

• Xcode Source Editor Extension now automatically infers formatting options from the file
• Wrapped function arguments and array/dictionary literal value indenting now works more like Xcode
• Added void rule for normalizing how Void return values are represented
• Added empty command line option for configuring the void rule
• Added commas command line option for disabling trailing commas
• Improved formatting of fragments containing unbalanced braces

0.13 (2016-10-17)

• Added Xcode Source Editor Extension (thanks @tonyarnold!)
• Fixed indenting of the line after a return statement (which is treated as the return value)

0.12.1 (2016-10-14)

• Fixed stripping of space after @escaping, @autoclosure and inout
• Fixed stripping of trailing linebreaks when using --fragment option

0.12 (2016-10-08)

• Linewrapped case elements are now vertically aligned
• The else keyword in a guard statement is no longer indented
• The elseOnSameLine rule is no longer applied if previous `} is not on its own line
• Fixed handling of case after comma in an if statement
• Added support for formatting partial file fragments
• Reduced compilation time by ~500ms

0.11.4 (2016-10-05)

• Fixed critical bug where optionals with a default value were not handled correctly
• Fixed rare bug where code would be incorrectly indented after a custom operator declaration

0.11.3 (2016-10-04)

• Fixed spacing between closure capture list and arguments
• Fixed incorrect indenting of closures after an if statement, and other braced clauses

0.11.2 (2016-10-04)

• Fixed incorrect indenting of closures inside for loops, and other braced clauses

0.11.1 (2016-10-04)

• Fixed incorrect wrapping of chained closures
• Improved the logic for wrapped lines; now behaves more like Apple's implementation
• Fixed some bugs in command line tool when file paths contain escaped characters

0.11 (2016-09-24)

• Fixed handling of prefix and postfix specifiers
• Fixed bug where trailing comma was added to empty array or dictionary literal
• Fixed bug where trailing whitespace was added at the start of doc comments
• Improved correctness of numeric literal parsing
• Converted to Swift 3 syntax

0.10 (2016-09-18)

• The blankLinesAtEndOfScope rule no longer removes trailing blank lines if immediately followed by other code
• The blankLinesBetweenScopes rule now adds a blank line after a scope as well as before it
• The blankLinesBetweenScopes rule no longer affects single-line functions, classes, etc.
• Fixed formatting of while case and for case ... in statements
• Fixed bug when using switch as an identifier inside a switch statement
• Fixed parsing of numeric literals containing underscores
• Fixed parsing of binary, octal and hexadecimal literals

0.9.6 (2016-09-16)

• Fixed parsing error when switch statement is followed by enum
• Fixed formatting of guard case statements

0.9.5 (2016-09-14)

• Fixed a number of cases where the use of keywords as identifiers was not being handled correctly

0.9.4 (2016-09-14)

• Fixed bug where parsing would fail if a switch/case statement contained default or case identifiers (valid in Swift 3)

0.9.3 (2016-09-12)

• Fixed bug where functions would be prefixed with an additional blank line if the preceding line had a trailing comment

0.9.2 (2016-09-09)

• Fixed bug where case expressions containing a colon would not be parsed correctly

0.9.1 (2016-09-08)

• Fixed bug where trailingCommas rule would place comma after a comment instead of before it

0.9 (2016-09-07)

• Added blankLinesBetweenScopes rule that adds a blank line before each class, struct, enum, extension, protocol or function
• Added specifiers rule, for normalizing the order of access modifiers, etc
• Fixed indent bugs when wrapping code before or after a where or else keyword
• Fixed indent bugs when using an operator as a value (e.g. let greaterThan = >)

0.8.2 (2016-09-01)

• Fixed bug where consecutive spaces would not be removed in lines that appeared after a // comment
• SwiftFormat will no longer try to format code containing unbalanced braces
• Added pre-commit hook instructions

0.8.1 (2016-08-31)

• Fixed formatting of /*! ... */ and //! headerdoc comments, and /*: ... */ and //: Swift Playground comments

0.8 (2016-08-31)

• Added new ranges rules that adds or removes the spaces around range operators (e.g. 0 ..< count, "a"..."z")
• Added a new --ranges command-line option, which can be used to configure the spacing around range operators
• Added new spaceAroundComments rule, which adds a space around /* ... */ comments and before // comments
• Added new spaceInsideComments rule, which adds a space inside /* ... */ comments and at the start of // comments
• Added new blankLinesAtEndOfScope rule, which removes blank lines at the end of braces, brackets and parens
• Removed double blank line at end of file

0.7.1 (2016-08-29)

• Fixed critical bug where failable generic init (e.g. init?<T>()) was not handled correctly

0.7 (2016-08-28)

• swiftformat command-line tool now correctly handles paths with \ escaped spaces, or paths in quotes
• Removed extra space added inside @objc selectors
• Fixed incorrect spacing for tuple bindings
• Fixed space before enum case inside closure

0.6 (2016-08-26)

• Refactored how switch/case is handled, and fixed a bunch of bugs
• Better indenting logic, now handles multiple closure arguments in a single function call

0.5.1 (2016-08-25)

• Fixed critical bug where double unwrap (e.g. foo??.bar()) was not handled correctly
• Fixed bug where case let .SomeEnum was not handled correctly

0.5 (2016-08-25)

• swiftformat command-line tool now supports reading from stdin/writing to stdout
• Added new linebreaks rule for normalizing linebreak characters (defaults to LF)
• More robust handling of linebreaks and whitespace within comments
• Trailing whitespace within comments is now stripped, as it was for other lines

0.4 (2016-08-24)

• Added new semicolons rule, which removes semicolons wherever it's safe to do so
• Added --semicolons command-line argument for enabling inline semicolon stripping
• The todos rule now corrects MARK : to MARK: instead of MARK: :
• Paths containing ~ are now handled correctly by the command line tool
• Fixed some bugs in generics and custom operator parsing, and added more tests
• Removed trailing whitespace on blank lines caused by the indent rule

0.3 (2016-08-23)

• Fixed several cases where generics were misidentified as operators
• Fixed a bug where a comment on a line before a brace broke K&R indenting
• Fixed a bug where a comment on a previous line caused incorrect indenting for wrapped lines
• Added new todos rule, for ensuring TODO:, MARK:, and FIXME: comments are formatted correctly
• Whitespace at the start of comments is now handled differently, but it shouldn't affect output

0.2 (2016-08-22)

• Fixed formatting of generic function types
• Fixed indenting of if case statements
• Fixed indenting of else when separated from if statement by a comment
• Changed private(set) spacing to match Apple standard
• Added swiftformat as a build phase to SwiftFormat, so I'm eating my own dogfood

0.1 (2016-08-22)

• First release