0.51.0: bzllint

Breaking

• Deprecate the unused_capture_list rule in favor of the Swift compiler warning. At the same time, make it an opt-in rule.
  Cyberbeni #4656

• Deprecate the inert_defer rule in favor of the Swift compiler warning. At the same time, make it an opt-in rule.
  SimplyDanny #4615

Experimental

• None.

Enhancements

• Add duplicate_conditions rule which warns when a condition is duplicated in separate branches of the same branching statement (if-else, or switch).
  1in1 #4666

• Add local links to rule descriptions to every rule listed in Rule Directory.md.
  kattouf

• Make forceExclude work with directly specified files.
  jimmya #4609

• Adds all pseudo-rule for opt_in_rules - enables all opt in rules that are not listed in disabled_rules
  Martin Redington #4540

• Separate analyzer rules as an independent section in the rule directory of the reference.
  Ethan Wong #4664

• Add rule identifier to output of Emoji reporter.
  SimplyDanny #4707

• Interpret strings in excluded option of identifier_name, type_name and generic_type_name rules as regex.
  Moly #4655

• Add new direct_return rule that triggers on return statements returning variables that have been declared in the statement before only.
  SimplyDanny

• Add period_spacing opt-in rule that checks periods are not followed by 2 or more spaces in comments.
  Julioacarrettoni #4624

• Allow to pass a rule identifier to the swiftlint docs command to open its specific documentation website, e.g. swiftlint docs for_where.
  SimplyDanny #4707

• Allow new Quick APIs aroundEach and justBeforeEach for quick_discouraged_call.
  David Steinacher #4626

• Add relative-path reporter to generate reports with relative file paths.
  Roya1v #4660

• Let number_separator rule trigger on misplaced separators, e.g. 10_00.
  SimplyDanny #4637

• Rewrite multiline_arguments rule using SwiftSyntax, ignoring trailing closures.
  Marcelo Fabri #3399 #3605

• Speed up linting by up to 6% updating to use a newer version of SwiftSyntax.
  JP Simard

• Catch more valid legacy_multiple violations.
  JP Simard

• Catch more valid no_magic_numbers violations.
  JP Simard

• Add blanket_disable_command rule that checks whether rules are re-enabled after being disabled.
  Martin Redington #4731

• Add invalid_swiftlint_command rule that validates // swiftlint:enable and disable commands.
  Martin Redington #4546

• Improve identifier_name documentation.
  Martin Redington #4767

• Adds include_multiline_strings option to indentation_width rule.
  Martin Redington #4248

• Adds a new summary reporter, that displays the number of violations of each rule in a text table.
  Martin Redington

Bug Fixes

• Report violations in all <scope>_length rules when the error threshold is smaller than the warning threshold.
  SimplyDanny #4645

• Consider custom attributes in attributes rule.
  SimplyDanny #4599

• Fix whitespaces issue in auto-fix of redundant_optional_initialization rule when multiple variable declaration are involved.
  SimplyDanny #4794

• Stop triggering strict_fileprivate rule on symbols implementing a protocol in the same file.
  SimplyDanny #4692

• Fix false positives on private_subject rule when using subjects inside functions.
  Marcelo Fabri #4643

• Fix for compiler directives masking subsequent opening_brace violations.
  Martin Redington #3712

• Rewrite explicit_type_interface rule with SwiftSyntax fixing a false-positive in if-case-let statements.
  SimplyDanny #4548

• Stop triggering unused_capture_list on captured variable that is only referenced by a shorthand optional binding (if let capturedVar { ... }).
  SimplyDanny #4804

• Ensure that negative literals in initializers do not trigger no_magic_numbers rule.
  SimplyDanny #4677

• Fix caching of indentation_width rule.
  SimplyDanny #4121

• Updated JUnit reporter to output error count and warning count.
  patricks #4725

• Fix correction on lower_acl_than_parent rule for open declarations.
  Marcelo Fabri #4753

• Fix void_return rule to support async and async throws functions.
  Mathias Schreck #4772

• Fix false positives in attributes rule when using property wrappers with keypath arguments.
  JP Simard

• Fix for superfluous_disable_command not being completely disabled by disable commands.
  Martin Redington #4788

• Fixed correction for trailing_comma rule wrongly removing trailing comments.
  Martin Redington #4814

Using Bazel

With bzlmod:

bazel_dep(name = "swiftlint", version = "0.51.0", repo_name = "SwiftLint")

Without bzlmod, put this in your WORKSPACE:

load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")

http_archive(
    name = "build_bazel_rules_apple",
    sha256 = "9e26307516c4d5f2ad4aee90ac01eb8cd31f9b8d6ea93619fc64b3cbc81b0944",
    url = "https://github.com/bazelbuild/rules_apple/releases/download/2.2.0/rules_apple.2.2.0.tar.gz",
)

load(
    "@build_bazel_rules_apple//apple:repositories.bzl",
    "apple_rules_dependencies",
)

apple_rules_dependencies()

load(
    "@build_bazel_rules_swift//swift:repositories.bzl",
    "swift_rules_dependencies",
)

swift_rules_dependencies()

load(
    "@build_bazel_rules_swift//swift:extras.bzl",
    "swift_rules_extra_dependencies",
)

swift_rules_extra_dependencies()

http_archive(
    name = "SwiftLint",
    sha256 = "8369ca218c4c898b7af202e2ec6180062396f659debca49a1d6c66902a3a37c3",
    url = "https://github.com/realm/SwiftLint/releases/download/0.51.0/bazel.tar.gz",
)

load("@SwiftLint//bazel:repos.bzl", "swiftlint_repos")

swiftlint_repos()

load("@SwiftLint//bazel:deps.bzl", "swiftlint_deps")

swiftlint_deps()

Then you can run SwiftLint in the current directory with this command:

bazel run @SwiftLint//:swiftlint -- --help