[macos] apply swiftlint auto-fixes

macos/Sources/App/macOS/AppDelegate.swift

@@ -155,7 +155,7 @@ class AppDelegate: NSObject,
     /// The observer for the app appearance.
     private var appearanceObserver: NSKeyValueObservation?
 
-    private var userDefaultsObserver: NSObjectProtocol? = nil
+    private var userDefaultsObserver: NSObjectProtocol?
     private var agentStatusBadgeCancellable: AnyCancellable?
 
     /// Signals

macos/Sources/Features/GitDiff/DiffParser.swift

@@ -13,7 +13,7 @@ enum DiffParser {
         var files: [DiffFile] = []
         files.reserveCapacity(32)
 
-        var current: FileAccumulator? = nil
+        var current: FileAccumulator?
 
         func finishCurrent() {
             guard var acc = current else { return }
@@ -148,7 +148,7 @@ enum DiffParser {
         var status: DiffFileStatus
 
         var hunks: [HunkAccumulator] = []
-        var currentHunk: HunkAccumulator? = nil
+        var currentHunk: HunkAccumulator?
 
         var fallbackLines: [String] = []
         var additions: Int = 0
@@ -383,11 +383,18 @@ enum DiffParser {
         return (stripGitDiffPathPrefix(a), stripGitDiffPathPrefix(b))
     }
 
-    private static func parseHunkHeader(_ line: String) -> (oldStart: Int, oldCount: Int, newStart: Int, newCount: Int) {
+    struct HunkRange {
+        let oldStart: Int
+        let oldCount: Int
+        let newStart: Int
+        let newCount: Int
+    }
+
+    private static func parseHunkHeader(_ line: String) -> HunkRange {
         let ns = line as NSString
         let range = NSRange(location: 0, length: ns.length)
         guard let match = hunkHeaderRegex.firstMatch(in: line, options: [], range: range) else {
-            return (0, 0, 0, 0)
+            return HunkRange(oldStart: 0, oldCount: 0, newStart: 0, newCount: 0)
         }
         func intGroup(_ idx: Int, default defaultValue: Int) -> Int {
             guard idx < match.numberOfRanges else { return defaultValue }
@@ -396,11 +403,12 @@ enum DiffParser {
             let s = ns.substring(with: r)
             return Int(s) ?? defaultValue
         }
-        let oldStart = intGroup(1, default: 0)
-        let oldCount = intGroup(2, default: 1)
-        let newStart = intGroup(3, default: 0)
-        let newCount = intGroup(4, default: 1)
-        return (oldStart, oldCount, newStart, newCount)
+        return HunkRange(
+            oldStart: intGroup(1, default: 0),
+            oldCount: intGroup(2, default: 1),
+            newStart: intGroup(3, default: 0),
+            newCount: intGroup(4, default: 1)
+        )
     }
 
     private static func stripGitDiffPathPrefix(_ token: String) -> String {

macos/Sources/Features/GitDiff/GitDiffMainView.swift

@@ -4,10 +4,10 @@ import SwiftUI
 struct GitDiffMainView: View {
     @ObservedObject var state: GitDiffSidebarState
 
-    @State private var hoveredLineID: String? = nil
-    @State private var composer: ComposerLocation? = nil
+    @State private var hoveredLineID: String?
+    @State private var composer: ComposerLocation?
     @State private var composerText: String = ""
-    @State private var lastVisibleFileID: String? = nil
+    @State private var lastVisibleFileID: String?
 
     var body: some View {
         content
@@ -60,11 +60,11 @@ private struct DiffDocumentView: View {
     private let lineNumberWidth: CGFloat = 36
     private let changeMarkerWidth: CGFloat = 3
     @State private var highlightCache = DiffHighlightCache()
-    @State private var headerOffsetsUpdateTask: Task<Void, Never>? = nil
+    @State private var headerOffsetsUpdateTask: Task<Void, Never>?
     @State private var latestHeaderOffsets: [String: CGFloat] = [:]
-    @State private var scrollTask: Task<Void, Never>? = nil
+    @State private var scrollTask: Task<Void, Never>?
     @State private var isScrolling: Bool = false
-    @State private var scrollIdleTask: Task<Void, Never>? = nil
+    @State private var scrollIdleTask: Task<Void, Never>?
 
     private let initialRenderedFiles: Int = 12
     private let renderStep: Int = 8
@@ -416,7 +416,7 @@ private struct DiffLineRow: View {
         let canHighlight: Bool
     }
 
-    @State private var renderedText: AttributedString? = nil
+    @State private var renderedText: AttributedString?
 
     var body: some View {
         VStack(alignment: .leading, spacing: 0) {

macos/Sources/Features/GitDiff/GitDiffSidebarState.swift

@@ -41,7 +41,7 @@ final class GitDiffSidebarState: ObservableObject {
 
     @Published var isVisible: Bool = false
     @Published var panelWidth: CGFloat = 320
-    @Published var repoRoot: String? = nil
+    @Published var repoRoot: String?
     @Published var entries: [GitDiffEntry] = []
     @Published var source: GitDiffSource = .workingTree {
         didSet {
@@ -53,36 +53,36 @@ final class GitDiffSidebarState: ObservableObject {
             handleScopeChange()
         }
     }
-    @Published var selectedPath: String? = nil
-    @Published var currentVisiblePath: String? = nil
-    @Published var scrollRequest: GitDiffScrollRequest? = nil
-    @Published var errorMessage: String? = nil
+    @Published var selectedPath: String?
+    @Published var currentVisiblePath: String?
+    @Published var scrollRequest: GitDiffScrollRequest?
+    @Published var errorMessage: String?
     @Published var isLoading: Bool = false
     @Published var diffText: String = ""
-    @Published var diffError: String? = nil
+    @Published var diffError: String?
     @Published var isDiffLoading: Bool = false
-    @Published var document: DiffDocument? = nil
+    @Published var document: DiffDocument?
     @Published var commentsEnabled: Bool = false
     @Published var reviewDraft: DiffReviewDraft = .empty
     @Published var collapsedFileIDs: Set<String> = []
     @Published var renderedFileCount: Int = 0
-    @Published var pullRequest: PRStatus? = nil
-    @Published var selectedWorktreePath: String? = nil
+    @Published var pullRequest: PRStatus?
+    @Published var selectedWorktreePath: String?
     private var diffRequestID: Int = 0
     private var scrollNonce: Int = 0
 
     private let store = GitDiffStore()
-    private var lastCwd: URL? = nil
+    private var lastCwd: URL?
     private let draftStore = DiffReviewDraftStore()
-    private var refreshTask: Task<Void, Never>? = nil
-    private var pendingRefresh: RefreshRequest? = nil
+    private var refreshTask: Task<Void, Never>?
+    private var pendingRefresh: RefreshRequest?
     private var lastRefreshAt: Date = .distantPast
-    private var pollTask: Task<Void, Never>? = nil
+    private var pollTask: Task<Void, Never>?
     private let watchQueue = DispatchQueue(label: "gitdiff.watch", qos: .utility)
     private var watchSources: [DispatchSourceFileSystemObject] = []
     private var watchFileDescriptors: [Int32] = []
     private var watchedPaths: [String] = []
-    private var watchedWorktreePath: String? = nil
+    private var watchedWorktreePath: String?
     private var ignoreWatchEventsUntil: Date = .distantPast
 
     var allCount: Int {

macos/Sources/Features/Terminal/Window Styles/TerminalWindow.swift

@@ -38,11 +38,11 @@ class TerminalWindow: NSWindow {
     private(set) var derivedConfig: DerivedConfig = .init()
 
     /// Sets up our tab context menu
-    private var tabMenuObserver: NSObjectProtocol? = nil
-    private var titlebarFontTabGroupObservation: NSKeyValueObservation? = nil
-    private var titlebarFontTabBarObservation: NSKeyValueObservation? = nil
-    private var lastTitlebarFontState: TitlebarFontState? = nil
-    private var lastAppliedAppearance: AppearanceState? = nil
+    private var tabMenuObserver: NSObjectProtocol?
+    private var titlebarFontTabGroupObservation: NSKeyValueObservation?
+    private var titlebarFontTabBarObservation: NSKeyValueObservation?
+    private var lastTitlebarFontState: TitlebarFontState?
+    private var lastAppliedAppearance: AppearanceState?
 
     /// Whether this window supports the update accessory. If this is false, then views within this
     /// window should determine how to show update notifications.

macos/Sources/Features/Terminal/Window Styles/TitlebarTabsTahoeTerminalWindow.swift

@@ -16,7 +16,7 @@ class TitlebarTabsTahoeTerminalWindow: TransparentTitlebarTerminalWindow, NSTool
     private var viewModel = ViewModel()
 
     private var worktrunkSidebarWidth: CGFloat = defaultSidebarWidth
-    private var tabBarLeftConstraint: NSLayoutConstraint? = nil
+    private var tabBarLeftConstraint: NSLayoutConstraint?
     private var displayTitle: String = "👻 Ghostree"
     /// Titlebar tabs can't support the update accessory because of the way we layout
     /// the native tabs back into the menu bar.
@@ -272,7 +272,7 @@ class TitlebarTabsTahoeTerminalWindow: TransparentTitlebarTerminalWindow, NSTool
     func updateWorktrunkSidebarWidth(_ width: CGFloat) {
         worktrunkSidebarWidth = max(0, width)
 
-        let windowButtonsPadding: CGFloat = switch(self.derivedConfig.macosWindowButtons) {
+        let windowButtonsPadding: CGFloat = switch self.derivedConfig.macosWindowButtons {
         case .hidden: 0
         case .visible: windowControlButtonsWidth
         }

macos/Sources/Features/Terminal/Window Styles/TitlebarTabsVenturaTerminalWindow.swift

@@ -6,7 +6,7 @@ private let defaultSidebarWidth: CGFloat = 280
 /// Titlebar tabs for macOS 13 to 15.
 class TitlebarTabsVenturaTerminalWindow: TerminalWindow {
     fileprivate var worktrunkSidebarWidth: CGFloat = defaultSidebarWidth
-    private var windowButtonsBackdropWidthConstraint: NSLayoutConstraint? = nil
+    private var windowButtonsBackdropWidthConstraint: NSLayoutConstraint?
 
     /// Titlebar tabs can't support the update accessory because of the way we layout
     /// the native tabs back into the menu bar.

macos/Sources/Features/Update/UpdatePopoverView.swift

@@ -220,7 +220,7 @@ private struct UpdateAvailableView: View {
     }
 }
 
-fileprivate struct HomebrewUpdateView: View {
+private struct HomebrewUpdateView: View {
     let update: UpdateState.HomebrewUpdate
     let dismiss: DismissAction
 

macos/Sources/Features/Worktrunk/WorktrunkSidebarView.swift

@@ -1100,7 +1100,7 @@ private struct CreateWorktreeSheet: View {
     @State private var base: String = ""
     @State private var createBranch: Bool = true
     @State private var isWorking: Bool = false
-    @State private var errorText: String? = nil
+    @State private var errorText: String?
 
     var body: some View {
         VStack(alignment: .leading, spacing: 12) {

macos/Sources/Features/Worktrunk/WorktrunkStore.swift

@@ -169,8 +169,8 @@ final class SessionIndexManager {
 }
 
 enum WorktreeSortOrder: String, CaseIterable {
-    case alphabetical = "alphabetical"
-    case recentActivity = "recentActivity"
+    case alphabetical
+    case recentActivity
 
     var label: String {
         switch self {
@@ -181,8 +181,8 @@ enum WorktreeSortOrder: String, CaseIterable {
 }
 
 enum WorktrunkSidebarListMode: String {
-    case nestedByRepo = "nestedByRepo"
-    case flatWorktrees = "flatWorktrees"
+    case nestedByRepo
+    case flatWorktrees
 }
 
 final class WorktrunkStore: ObservableObject {
@@ -269,7 +269,7 @@ final class WorktrunkStore: ObservableObject {
     @Published var isRefreshing: Bool = false
     @Published var isInstallingWorktrunk: Bool = false
     @Published var needsWorktrunkInstall: Bool = false
-    @Published var errorMessage: String? = nil
+    @Published var errorMessage: String?
     @Published private(set) var sidebarModelRevision: Int = 0
     @Published var worktreeSortOrder: WorktreeSortOrder = .recentActivity {
         didSet {
@@ -295,13 +295,13 @@ final class WorktrunkStore: ObservableObject {
     private let firstSeenAtKey = "GhostreeWorktrunkWorktreeFirstSeenAtByPath.v1"
     private let sessionCache = SessionCacheManager()
     private let sessionIndex = SessionIndexManager()
-    private var agentEventTailer: AgentEventTailer? = nil
+    private var agentEventTailer: AgentEventTailer?
     private var pendingAgentEventsByCwd: [String: AgentLifecycleEvent] = [:]
     private var agentStatusAckedAtByWorktreePath: [String: Date] = [:]
     private var firstSeenAtByWorktreePath: [String: Date] = [:]
     private var lastAppQuitTimestamp: Date?
     private var sidebarModelRevisionCounter: Int = 0
-    private var refreshAllTask: Task<Void, Never>? = nil
+    private var refreshAllTask: Task<Void, Never>?
     private var refreshAllNeedsRerun: Bool = false
 
     init() {
@@ -631,7 +631,7 @@ final class WorktrunkStore: ObservableObject {
         await MainActor.run {
             var removedPaths = Set<String>()
             var didChangeFirstSeen = false
-            var lastError: String? = nil
+            var lastError: String?
 
             for repo in repoSnapshot {
                 guard let result = resultsByRepoID[repo.id] else { continue }
@@ -1672,7 +1672,7 @@ final class WorktrunkStore: ObservableObject {
                         .appendingPathComponent("session")
                         .appendingPathComponent("message")
                         .appendingPathComponent(info.id)
-                    var messageDirMtime: TimeInterval? = nil
+                    var messageDirMtime: TimeInterval?
                     var messageCount = 0
                     if let dirAttrs = try? FileManager.default.attributesOfItem(atPath: messageDir.path),
                        let dirMtime = (dirAttrs[.modificationDate] as? Date)?.timeIntervalSince1970 {
@@ -1977,7 +1977,7 @@ final class WorktrunkStore: ObservableObject {
     // MARK: - Session Helpers
 
     private func findMatchingWorktree(_ cwd: String) -> String? {
-        var bestMatch: String? = nil
+        var bestMatch: String?
         var bestLength = 0
         let normalizedCwd = normalizePathForMatch(cwd)