Setup SwiftLint in the project and on CI

.buildkite/pipeline.yml

@@ -1,7 +1,7 @@
 # Nodes with values to reuse in the pipeline.
 common_params:
   plugins: &common_plugins
-    - automattic/a8c-ci-toolkit#3.0.1
+    - automattic/a8c-ci-toolkit#3.1.0
   env: &common_env
     IMAGE_ID: xcode-15.2
 
@@ -29,6 +29,15 @@ steps:
   #################
   # Lint
   #################
+  - label: ":swift: SwiftLint"
+    command: run_swiftlint --strict
+    plugins: *common_plugins
+    notify:
+      - github_commit_status:
+          context: "SwiftLint"
+    agents:
+      queue: "default"
+
   - label: "🧹 Lint"
     key: "lint"
     command: |

.swiftlint.yml

@@ -0,0 +1,32 @@
+swiftlint_version: 0.54.0
+
+excluded:
+  - DerivedData
+  - fastlane
+  - vendor
+
+# Rules – Opt-in only, so we can progressively introduce new ones
+#
+only_rules:
+  - colon
+  - comma
+  - comment_spacing
+  - control_statement
+  - discarded_notification_center_observer
+  - duplicate_imports
+  - empty_enum_arguments
+  - empty_parameters
+  - mark
+  - opening_brace
+  - overridden_super_call
+  - redundant_optional_initialization
+  - statement_position
+  - trailing_comma
+  - trailing_newline
+  - trailing_semicolon
+  - trailing_whitespace
+  - unneeded_break_in_switch
+  - unused_closure_parameter
+  - vertical_whitespace
+  - void_return
+  - weak_delegate

Example/Example/AppDelegate.swift

@@ -5,7 +5,6 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
 
     var window: UIWindow?
 
-
     func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
         // Override point for customization after application launch.
         return true
@@ -33,6 +32,4 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
         // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
     }
 
-
 }
-

Example/Example/KeyboardAnimationsExampleViewController.swift

@@ -36,7 +36,7 @@ class KeyboardAnimationsExampleViewController: UIViewController {
         }
 
         let willHideObserver = NotificationCenter.default.addObserver(forName: UIResponder.keyboardWillHideNotification, object: nil, queue: .main) { (notification) in
-            UIView.animate(withKeyboard: notification) { (beginFrame, endFrame) in
+            UIView.animate(withKeyboard: notification) { (_, _) in
                 self.bottomConstraintForAnimation.constant = 20
                 self.view.setNeedsLayout()
                 self.view.layoutIfNeeded()

Example/Example/ViewController.swift

@@ -3,19 +3,18 @@ import WordPressUI
 
 ///
 ///
-class ViewController: UITableViewController
-{
-
-    private typealias CompletionClosure = () -> ()
-
+class ViewController: UITableViewController {
+
+    private typealias CompletionClosure = () -> Void
+
     let cellIdentifier = "CellIdentifier"
     var sections: [DemoSection]!
-    
+
     // MARK: LifeCycle Methods
-    
+
     override func viewDidLoad() {
         super.viewDidLoad()
-        
+
         sections = [
             DemoSection(title: "Fancy Alert", rows: [
                 DemoRow(title: "Fancy Alert", action: {
@@ -40,36 +39,36 @@ class ViewController: UITableViewController
             ])
         ]
     }
-    
+
     // MARK: - Useful constants
-    
+
     private struct FancyAlertConstants {
         static let title = "Fancy Alert"
         static let message = "Introducing the Fancy Alert UI Experience. Designed to show alerts and information to the user in a standardized manner."
-        
+
         static let defaultButtonTitle =  "Go Ahead"
         static let cancelButtonTitle = "Cancel"
         static let moreInfoButtonTitle = "More Information"
-        
+
         static let switchText = "Do not show this again"
     }
-    
+
     // MARK: Fancy Alert
-    
+
     func showFancyAlert(moreInfoButton: FancyAlertViewController.Config.ButtonConfig? = nil,
                         switchConfig: FancyAlertViewController.Config.SwitchConfig? = nil) {
-        
-        let defaultButton = FancyAlertViewController.Config.ButtonConfig(FancyAlertConstants.defaultButtonTitle) { (controller: FancyAlertViewController, button: UIButton) in
-            
+
+        let defaultButton = FancyAlertViewController.Config.ButtonConfig(FancyAlertConstants.defaultButtonTitle) { (controller: FancyAlertViewController, _: UIButton) in
+
             self.show(message: FancyAlertConstants.defaultButtonTitle, from: controller) {
                 controller.dismiss(animated: true)
             }
         }
-        
-        let cancelButton = FancyAlertViewController.Config.ButtonConfig(FancyAlertConstants.cancelButtonTitle) { (controller: FancyAlertViewController, button: UIButton) in
+
+        let cancelButton = FancyAlertViewController.Config.ButtonConfig(FancyAlertConstants.cancelButtonTitle) { (controller: FancyAlertViewController, _: UIButton) in
             controller.dismiss(animated: true)
         }
-        
+
         let configuration = FancyAlertViewController.Config(
             titleText: FancyAlertConstants.title,
             bodyText: FancyAlertConstants.message,
@@ -79,23 +78,23 @@ class ViewController: UITableViewController
             cancelButton: cancelButton,
             moreInfoButton: moreInfoButton,
             switchConfig: switchConfig)
-        
+
         let alert = FancyAlertViewController.controllerWithConfiguration(configuration: configuration)
         alert.modalPresentationStyle = .custom
         alert.transitioningDelegate = self
-        
+
         present(alert, animated: true, completion: nil)
     }
-    
+
     func showFancyAlertWithMoreInfo() {
-        let moreInfoButton = FancyAlertViewController.Config.ButtonConfig(FancyAlertConstants.moreInfoButtonTitle) { [unowned self] (controller: FancyAlertViewController, button: UIButton) in
-            
+        let moreInfoButton = FancyAlertViewController.Config.ButtonConfig(FancyAlertConstants.moreInfoButtonTitle) { [unowned self] (controller: FancyAlertViewController, _: UIButton) in
+
             self.show(message: FancyAlertConstants.moreInfoButtonTitle, from: controller)
         }
-        
+
         showFancyAlert(moreInfoButton: moreInfoButton)
     }
-    
+
     func showFancyAlertWithSwitch() {
         let switchConfig = FancyAlertViewController.Config.SwitchConfig(
             initialValue: true,
@@ -107,7 +106,7 @@ class ViewController: UITableViewController
                     self.show(message: "OFF", from: controller)
                 }
         })
-        
+
         showFancyAlert(switchConfig: switchConfig)
     }
 
@@ -116,63 +115,61 @@ class ViewController: UITableViewController
     func showFancyButtons() {
         performSegue(withIdentifier: "FancyButtonsSegue", sender: self)
     }
-    
+
     // MARK: - Test Messages for the User
-    
+
     private func show(message: String, from controller: UIViewController, completion onCompletion: CompletionClosure? = nil) {
         let alertViewController = UIAlertController(title: nil, message: message, preferredStyle: .alert)
-        
-        alertViewController.addActionWithTitle("Ok", style: .default) { alertAction in
+
+        alertViewController.addActionWithTitle("Ok", style: .default) { _ in
             onCompletion?()
         }
-        
+
         controller.present(alertViewController, animated: true, completion: nil)
     }
-    
+
     // MARK: - TableView Methods
-    
+
     override func numberOfSections(in tableView: UITableView) -> Int {
         return sections.count
     }
-
-
+
     override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
         return sections[section].rows.count
     }
-    
+
     override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
         let cell = tableView.dequeueReusableCell(withIdentifier: cellIdentifier)!
         cell.accessoryType = .disclosureIndicator
-        
+
         let row = sections[indexPath.section].rows[indexPath.row]
         cell.textLabel?.text = row.title
-        
+
         return cell
     }
-    
+
     override func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
         return 40
     }
-    
+
     override func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
         let textView = UITextView()
-        
+
         textView.font = UIFont.boldSystemFont(ofSize: 14)
         textView.textAlignment = .center
         textView.isEditable = false
         textView.text = sections[section].title
         textView.backgroundColor = UIColor.lightGray
-        
+
         return textView
     }
-
-
+
     override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
         tableView.deselectRow(at: indexPath, animated: true)
-        
+
         sections[indexPath.section].rows[indexPath.row].action()
     }
-    
+
 }
 
 // MARK: - UIViewControllerTransitioningDelegate
@@ -182,12 +179,11 @@ extension ViewController: UIViewControllerTransitioningDelegate {
         guard presented is FancyAlertViewController else {
             return nil
         }
-        
+
         return FancyAlertPresentationController(presentedViewController: presented, presenting: presenting)
     }
 }
 
-
 typealias RowAction = () -> Void
 
 struct DemoSection {

Package.resolved

@@ -0,0 +1,88 @@
+{
+  "object": {
+    "pins": [
+      {
+        "package": "CollectionConcurrencyKit",
+        "repositoryURL": "https://github.com/JohnSundell/CollectionConcurrencyKit.git",
+        "state": {
+          "branch": null,
+          "revision": "b4f23e24b5a1bff301efc5e70871083ca029ff95",
+          "version": "0.2.0"
+        }
+      },
+      {
+        "package": "CryptoSwift",
+        "repositoryURL": "https://github.com/krzyzanowskim/CryptoSwift.git",
+        "state": {
+          "branch": null,
+          "revision": "7892a123f7e8d0fe62f9f03728b17bbd4f94df5c",
+          "version": "1.8.1"
+        }
+      },
+      {
+        "package": "SourceKitten",
+        "repositoryURL": "https://github.com/jpsim/SourceKitten.git",
+        "state": {
+          "branch": null,
+          "revision": "b6dc09ee51dfb0c66e042d2328c017483a1a5d56",
+          "version": "0.34.1"
+        }
+      },
+      {
+        "package": "swift-argument-parser",
+        "repositoryURL": "https://github.com/apple/swift-argument-parser.git",
+        "state": {
+          "branch": null,
+          "revision": "8f4d2753f0e4778c76d5f05ad16c74f707390531",
+          "version": "1.2.3"
+        }
+      },
+      {
+        "package": "swift-syntax",
+        "repositoryURL": "https://github.com/apple/swift-syntax.git",
+        "state": {
+          "branch": null,
+          "revision": "6ad4ea24b01559dde0773e3d091f1b9e36175036",
+          "version": "509.0.2"
+        }
+      },
+      {
+        "package": "SwiftLint",
+        "repositoryURL": "https://github.com/realm/SwiftLint",
+        "state": {
+          "branch": null,
+          "revision": "f17a4f9dfb6a6afb0408426354e4180daaf49cee",
+          "version": "0.54.0"
+        }
+      },
+      {
+        "package": "SwiftyTextTable",
+        "repositoryURL": "https://github.com/scottrhoyt/SwiftyTextTable.git",
+        "state": {
+          "branch": null,
+          "revision": "c6df6cf533d120716bff38f8ff9885e1ce2a4ac3",
+          "version": "0.9.0"
+        }
+      },
+      {
+        "package": "SWXMLHash",
+        "repositoryURL": "https://github.com/drmohundro/SWXMLHash.git",
+        "state": {
+          "branch": null,
+          "revision": "a853604c9e9a83ad9954c7e3d2a565273982471f",
+          "version": "7.0.2"
+        }
+      },
+      {
+        "package": "Yams",
+        "repositoryURL": "https://github.com/jpsim/Yams.git",
+        "state": {
+          "branch": null,
+          "revision": "0d9ee7ea8c4ebd4a489ad7a73d5c6cad55d6fed3",
+          "version": "5.0.6"
+        }
+      }
+    ]
+  },
+  "version": 1
+}