Setup SwiftLint to run locally (#697)

.gitignore

@@ -34,3 +34,6 @@ Pods/
 fastlane/README.md
 fastlane/report.xml
 fastlane/test_output
+
+# SwiftLint Remote Config Cache
+.swiftlint/RemoteConfigCache

.swiftlint.yml

@@ -0,0 +1,2 @@
+parent_config: https://raw.githubusercontent.com/Automattic/swiftlint-config/0f8ab6388bd8d15a04391825ab125f80cfb90704/.swiftlint.yml
+remote_timeout: 10.0

Makefile

@@ -0,0 +1,14 @@
+# Why is there a `Makefile` when we already have a `Fastfile` in this project?
+#
+# Because when running Ruby code (i.e. `bundle exec fastlane <lane>`) from
+# within an Xcode build phase, Xcode will use a shell different from the user's
+# and with system Ruby where Bundler and Fastlane may or may not be available.
+# `make` on the other hand, is always available, therefore `make lint` can be
+# reliably called from both the user's terminal, Xcode, and CI.
+SWIFTLINT=./Pods/SwiftLint/swiftlint
+
+lint:
+	$(SWIFTLINT) lint --quiet
+
+format:
+	$(SWIFTLINT) lint --autocorrect --quiet

Podfile

@@ -49,17 +49,30 @@ target 'WordPressAuthenticatorTests' do
   pod 'OCMock', '~> 3.4'
   pod 'Expecta', '1.0.6'
   pod 'Specta', '1.0.7'
+end
+
+# Used to donwload CLI tools.
+abstract_target 'Tools' do
+  pod 'SwiftLint', '~> 0.49'
+end
+
+post_install do |installer|
+  installer.pods_project.targets.each do |target|
+    target.build_configurations.each do |configuration|
+      # Let Pods targets inherit deployment target from the app
+      # This solution is suggested here: https://github.com/CocoaPods/CocoaPods/issues/4859
+      pod_ios_deployment_target = Gem::Version.new(configuration.build_settings['IPHONEOS_DEPLOYMENT_TARGET'])
+      configuration.build_settings.delete 'IPHONEOS_DEPLOYMENT_TARGET' if pod_ios_deployment_target <= ios_deployment_target
 
-  post_install do |installer|
-    # Let Pods targets inherit deployment target from the app
-    # This solution is suggested here: https://github.com/CocoaPods/CocoaPods/issues/4859
-    # =====================================
-    #
-    installer.pods_project.targets.each do |target|
-      target.build_configurations.each do |configuration|
-        pod_ios_deployment_target = Gem::Version.new(configuration.build_settings['IPHONEOS_DEPLOYMENT_TARGET'])
-        configuration.build_settings.delete 'IPHONEOS_DEPLOYMENT_TARGET' if pod_ios_deployment_target <= ios_deployment_target
-      end
+      # This addresses Xcode 12, 13, and 14 showing an "Update to recommended
+      # settings" warning on the Pods project.
+      #
+      # See:
+      #
+      # - https://github.com/CocoaPods/CocoaPods/issues/10189
+      # - https://github.com/CocoaPods/CocoaPods/issues/11553
+      configuration.build_settings.delete 'ARCHS'
+      configuration.build_settings['DEAD_CODE_STRIPPING'] = 'YES'
     end
   end
 end

Podfile.lock

@@ -26,6 +26,7 @@ PODS:
   - OCMock (3.8.1)
   - Specta (1.0.7)
   - SVProgressHUD (2.2.5)
+  - SwiftLint (0.49.1)
   - UIDeviceIdentifier (1.6.0)
   - WordPressKit (4.24.0):
     - Alamofire (~> 4.8.0)
@@ -49,6 +50,7 @@ DEPENDENCIES:
   - OCMock (~> 3.4)
   - Specta (= 1.0.7)
   - SVProgressHUD (= 2.2.5)
+  - SwiftLint (~> 0.49)
   - WordPressKit (~> 4.18-beta)
   - WordPressShared (~> 1.12-beta)
   - WordPressUI (~> 1.7-beta)
@@ -69,6 +71,7 @@ SPEC REPOS:
     - OCMock
     - Specta
     - SVProgressHUD
+    - SwiftLint
     - UIDeviceIdentifier
     - WordPressKit
     - WordPressShared
@@ -90,12 +93,13 @@ SPEC CHECKSUMS:
   OCMock: 29f6e52085b4e7d9b075cbf03ed7c3112f82f934
   Specta: 3e1bd89c3517421982dc4d1c992503e48bd5fe66
   SVProgressHUD: 1428aafac632c1f86f62aa4243ec12008d7a51d6
+  SwiftLint: 32ee33ded0636d0905ef6911b2b67bbaeeedafa5
   UIDeviceIdentifier: f4bf3b343581a1beacdbf5fb1a8825bd5f05a4a4
   WordPressKit: ee58e3d313ddce1f768e87d76364d261ad86fca9
   WordPressShared: 38cb62e9cb998d4dc3c1611f17934c6875a6b3e8
   WordPressUI: 1cf47a3b78154faf69caa18569ee7ece1e510fa0
   wpxmlrpc: bf55a43a7e710bd2a4fb8c02dfe83b1246f14f13
 
-PODFILE CHECKSUM: a1020c109a62537b5751fddc9375bacd6c45db78
+PODFILE CHECKSUM: 4aeaf3c769fe14a1696e9e1c42b609b7e9f8858c
 
 COCOAPODS: 1.11.3

WordPressAuthenticator.xcodeproj/project.pbxproj

@@ -3,7 +3,7 @@
 	archiveVersion = 1;
 	classes = {
 	};
-	objectVersion = 52;
+	objectVersion = 54;
 	objects = {
 
 /* Begin PBXBuildFile section */
@@ -1013,6 +1013,7 @@
 				B5ED78F0207E976500A8FD8C /* Frameworks */,
 				B5ED78F2207E976500A8FD8C /* Resources */,
 				B5A5274B20B479D30065BE81 /* CopyFiles */,
+				3FCF8AA329111BD200E64F8D /* Lint */,
 			);
 			buildRules = (
 			);
@@ -1131,6 +1132,25 @@
 /* End PBXResourcesBuildPhase section */
 
 /* Begin PBXShellScriptBuildPhase section */
+		3FCF8AA329111BD200E64F8D /* Lint */ = {
+			isa = PBXShellScriptBuildPhase;
+			alwaysOutOfDate = 1;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			inputFileListPaths = (
+			);
+			inputPaths = (
+			);
+			name = Lint;
+			outputFileListPaths = (
+			);
+			outputPaths = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+			shellPath = /bin/sh;
+			shellScript = "make lint\n";
+		};
 		6CD6648B820552D8638F8EDA /* [CP] Check Pods Manifest.lock */ = {
 			isa = PBXShellScriptBuildPhase;
 			buildActionMask = 2147483647;

WordPressAuthenticator/Analytics/AuthenticatorAnalyticsTracker.swift

@@ -83,7 +83,7 @@ public class AuthenticatorAnalyticsTracker {
         ///
         case loginWithSiteAddress = "login_site_address"
 
-        /// This flow starts when the user wants to troubleshoot their site by inputting its address 
+        /// This flow starts when the user wants to troubleshoot their site by inputting its address
         ///
         case siteDiscovery = "site_discovery"
 

WordPressAuthenticator/Authenticator/WordPressAuthenticator.swift

@@ -557,14 +557,14 @@ import WordPressKit
 
 public extension WordPressAuthenticator {
 
-    func getAppleIDCredentialState(for userID: String, completion:  @escaping (ASAuthorizationAppleIDProvider.CredentialState, Error?) -> Void) {
+    func getAppleIDCredentialState(for userID: String, completion: @escaping (ASAuthorizationAppleIDProvider.CredentialState, Error?) -> Void) {
         AppleAuthenticator.sharedInstance.getAppleIDCredentialState(for: userID) { (state, error) in
             // If credentialState == .notFound, error will have a value.
             completion(state, error)
         }
     }
 
-    func startObservingAppleIDCredentialRevoked(completion:  @escaping () -> Void) {
+    func startObservingAppleIDCredentialRevoked(completion: @escaping () -> Void) {
         appleIDCredentialObserver = NotificationCenter.default.addObserver(forName: AppleAuthenticator.credentialRevokedNotification, object: nil, queue: nil) { (_) in
             completion()
         }

WordPressAuthenticator/Logging/CocoaLumberjack.swift

@@ -2,7 +2,7 @@ import Foundation
 import CocoaLumberjack
 
 // June 14 2017 - @astralbodies
-// Taken from CocoaLumberjack repository - reproduced to prevent issue with 
+// Taken from CocoaLumberjack repository - reproduced to prevent issue with
 // CocoaPods and some weird bug with frameworks
 
 // Software License Agreement (BSD License)

WordPressAuthenticator/Navigation/NavigationCommand.swift

@@ -2,7 +2,7 @@ import Foundation
 
 /// NavigationCommand abstracts logic necessary provide clients of this library
 /// with a way to navigate to a particular location in the UL navigation flow.
-/// 
+///
 /// Concrete implementations of this protocol will decide what that means
 ///
 public protocol NavigationCommand {

WordPressAuthenticator/Signin/LoginWPComViewController.swift

@@ -142,7 +142,10 @@ class LoginWPComViewController: LoginViewController, NUXKeyboardResponder {
                 return NSLocalizedString("To proceed with this Google account, please first log in with your WordPress.com password. This will only be asked once.", comment: "")
             }
 
-            return NSLocalizedString("Please enter the password for your WordPress.com account to log in with your Apple ID.", comment: "")
+            return NSLocalizedString(
+                "Please enter the password for your WordPress.com account to log in with your Apple ID.",
+                comment: "Instructional text shown when requesting the user's password for a login initiated via Sign In with Apple"
+            )
         }()
 
         passwordField?.placeholder = NSLocalizedString("Password", comment: "Password placeholder")

WordPressAuthenticator/Signup/SignupEmailViewController.swift

@@ -136,7 +136,7 @@ class SignupEmailViewController: LoginViewController, NUXKeyboardResponder {
 
     // MARK: - Email Availability
 
-    private func checkEmailAvailability(completion:@escaping (Bool) -> Void) {
+    private func checkEmailAvailability(completion: @escaping (Bool) -> Void) {
 
         let remote = AccountServiceRemoteREST(
             wordPressComRestApi: WordPressComRestApi(baseUrlString: WordPressAuthenticator.shared.configuration.wpcomAPIBaseURL))

WordPressAuthenticator/Unified Auth/View Related/Password/PasswordViewController.swift

@@ -145,7 +145,9 @@ class PasswordViewController: LoginViewController {
             // is the actual error string. So check for "password" in the error string, and show the custom
             // error message. Otherwise, show the actual response error.
             var displayMessage: String {
+                // swiftlint:disable localization_comment
                 if nsError.localizedDescription.contains(NSLocalizedString("password", comment: "")) {
+                // swiftlint:enable localization_comment
                     return NSLocalizedString("It seems like you've entered an incorrect password. Want to give it another try?", comment: "An error message shown when a wpcom user provides the wrong password.")
                 }
                 return nsError.localizedDescription