[Console-Log]: Added raw console logging in ErrorLog section (ladybug icon)

AltStore.xcodeproj/project.pbxproj

@@ -61,6 +61,12 @@
 		A8945AA62D059B6100D86CBE /* Roxas.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = A8945AA52D059B6100D86CBE /* Roxas.framework */; };
 		A8A543302D04F14400D72399 /* libfragmentzip.a in Frameworks */ = {isa = PBXBuildFile; fileRef = A8A5432F2D04F0C100D72399 /* libfragmentzip.a */; };
 		A8BB34E52D04EC8E000A8B4D /* minimuxer-helpers.swift in Sources */ = {isa = PBXBuildFile; fileRef = A809F6A52D04DA1900F0F0F3 /* minimuxer-helpers.swift */; };
+		A8C38C242D206A3A00E83DBD /* ConsoleLogger.swift in Sources */ = {isa = PBXBuildFile; fileRef = A8C38C1D2D206A3A00E83DBD /* ConsoleLogger.swift */; };
+		A8C38C262D206A3A00E83DBD /* ConsoleLog.swift in Sources */ = {isa = PBXBuildFile; fileRef = A8C38C1E2D206A3A00E83DBD /* ConsoleLog.swift */; };
+		A8C38C2A2D206AC100E83DBD /* OutputStream.swift in Sources */ = {isa = PBXBuildFile; fileRef = A8C38C282D206AC100E83DBD /* OutputStream.swift */; };
+		A8C38C2C2D206AD900E83DBD /* AbstractClassError.swift in Sources */ = {isa = PBXBuildFile; fileRef = A8C38C2B2D206AD900E83DBD /* AbstractClassError.swift */; };
+		A8C38C322D206B2500E83DBD /* FileOutputStream.swift in Sources */ = {isa = PBXBuildFile; fileRef = A8C38C312D206B2500E83DBD /* FileOutputStream.swift */; };
+		A8C38C382D2084D000E83DBD /* ConsoleLogView.swift in Sources */ = {isa = PBXBuildFile; fileRef = A8C38C372D2084D000E83DBD /* ConsoleLogView.swift */; };
 		A8C6D50C2D1EE87600DF01F1 /* AltSign-Static in Frameworks */ = {isa = PBXBuildFile; productRef = A8C6D50B2D1EE87600DF01F1 /* AltSign-Static */; };
 		A8C6D5122D1EE8AF00DF01F1 /* AltSign-Static in Frameworks */ = {isa = PBXBuildFile; productRef = A8C6D5112D1EE8AF00DF01F1 /* AltSign-Static */; };
 		A8C6D5132D1EE8D700DF01F1 /* OpenSSL.xcframework in Frameworks */ = {isa = PBXBuildFile; fileRef = A859ED5B2D1EE80D003DCC58 /* OpenSSL.xcframework */; };
@@ -624,6 +630,12 @@
 		A86202322D1F35640091187B /* AltStore.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; path = AltStore.xcconfig; sourceTree = "<group>"; };
 		A86202332D1F35640091187B /* AltStoreCore.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; path = AltStoreCore.xcconfig; sourceTree = "<group>"; };
 		A8945AA52D059B6100D86CBE /* Roxas.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; path = Roxas.framework; sourceTree = BUILT_PRODUCTS_DIR; };
+		A8C38C1D2D206A3A00E83DBD /* ConsoleLogger.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ConsoleLogger.swift; sourceTree = "<group>"; };
+		A8C38C1E2D206A3A00E83DBD /* ConsoleLog.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ConsoleLog.swift; sourceTree = "<group>"; };
+		A8C38C282D206AC100E83DBD /* OutputStream.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = OutputStream.swift; sourceTree = "<group>"; };
+		A8C38C2B2D206AD900E83DBD /* AbstractClassError.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AbstractClassError.swift; sourceTree = "<group>"; };
+		A8C38C312D206B2500E83DBD /* FileOutputStream.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = FileOutputStream.swift; sourceTree = "<group>"; };
+		A8C38C372D2084D000E83DBD /* ConsoleLogView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ConsoleLogView.swift; sourceTree = "<group>"; };
 		A8D484D72D0CD306002C691D /* AltBackup.ipa */ = {isa = PBXFileReference; lastKnownFileType = file; path = AltBackup.ipa; sourceTree = "<group>"; };
 		A8F66C3C2D04D433009689E6 /* em_proxy.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = em_proxy.h; sourceTree = "<group>"; };
 		A8F66C602D04D464009689E6 /* minimuxer.xcodeproj */ = {isa = PBXFileReference; lastKnownFileType = "wrapper.pb-project"; path = minimuxer.xcodeproj; sourceTree = "<group>"; };
@@ -1161,6 +1173,34 @@
 			name = Products;
 			sourceTree = "<group>";
 		};
+		A8C38C1C2D2068D100E83DBD /* Utils */ = {
+			isa = PBXGroup;
+			children = (
+				A8C38C272D206AA500E83DBD /* common */,
+				A8C38C202D206A3A00E83DBD /* iostreams */,
+			);
+			path = Utils;
+			sourceTree = "<group>";
+		};
+		A8C38C202D206A3A00E83DBD /* iostreams */ = {
+			isa = PBXGroup;
+			children = (
+				A8C38C1D2D206A3A00E83DBD /* ConsoleLogger.swift */,
+				A8C38C1E2D206A3A00E83DBD /* ConsoleLog.swift */,
+			);
+			path = iostreams;
+			sourceTree = "<group>";
+		};
+		A8C38C272D206AA500E83DBD /* common */ = {
+			isa = PBXGroup;
+			children = (
+				A8C38C282D206AC100E83DBD /* OutputStream.swift */,
+				A8C38C312D206B2500E83DBD /* FileOutputStream.swift */,
+				A8C38C2B2D206AD900E83DBD /* AbstractClassError.swift */,
+			);
+			path = common;
+			sourceTree = "<group>";
+		};
 		A8F66C072D04C025009689E6 /* SideStore */ = {
 			isa = PBXGroup;
 			children = (
@@ -1170,6 +1210,7 @@
 				B343F84D295F6323002B1159 /* em_proxy.xcodeproj */,
 				19104DB32909C06D00C49C7B /* EmotionalDamage */,
 				B343F886295F7F9B002B1159 /* libfragmentzip.xcodeproj */,
+				A8C38C1C2D2068D100E83DBD /* Utils */,
 			);
 			path = SideStore;
 			sourceTree = "<group>";
@@ -2095,6 +2136,7 @@
 		D589170128C7D93500E39C8B /* Error Log */ = {
 			isa = PBXGroup;
 			children = (
+				A8C38C372D2084D000E83DBD /* ConsoleLogView.swift */,
 				D57FE84328C7DB7100216002 /* ErrorLogViewController.swift */,
 				D54DED1328CBC44B008B27A0 /* ErrorLogTableViewCell.swift */,
 				0EE7FDCC2BE9124400D1E390 /* ErrorDetailsViewController.swift */,
@@ -2838,6 +2880,7 @@
 			files = (
 				BFDB6A0F22AB2776007EA6D6 /* SendAppOperation.swift in Sources */,
 				BFDB6A0D22AAFC1A007EA6D6 /* OperationError.swift in Sources */,
+				A8C38C2C2D206AD900E83DBD /* AbstractClassError.swift in Sources */,
 				BF74989B23621C0700CED65F /* ForwardingNavigationController.swift in Sources */,
 				D57F2C9426E01BC700B9FA39 /* UIDevice+Vibration.swift in Sources */,
 				BFD2478F2284C8F900981D42 /* Button.swift in Sources */,
@@ -2865,11 +2908,14 @@
 				BFCCB51A245E3401001853EA /* VerifyAppOperation.swift in Sources */,
 				BFF0B6982322CAB8007A79E1 /* InstructionsViewController.swift in Sources */,
 				BF9ABA4522DCFF43008935CF /* BrowseViewController.swift in Sources */,
+				A8C38C242D206A3A00E83DBD /* ConsoleLogger.swift in Sources */,
+				A8C38C262D206A3A00E83DBD /* ConsoleLog.swift in Sources */,
 				D5935AED29C39DE300C157EF /* SourceComponents.swift in Sources */,
 				D5935AED29C39DE300C157EF /* SourceComponents.swift in Sources */,
 				A8FD917C2D0478D200322782 /* VerificationError.swift in Sources */,
 				D5A0537329B91DB400997551 /* SourceDetailContentViewController.swift in Sources */,
 				BF770E5422BC044E002A40FE /* OperationContexts.swift in Sources */,
+				A8C38C322D206B2500E83DBD /* FileOutputStream.swift in Sources */,
 				BFD2478C2284C4C300981D42 /* AppIconImageView.swift in Sources */,
 				BF8F69C422E662D300049BA1 /* AppViewController.swift in Sources */,
 				BFF0B68E23219520007A79E1 /* PatreonViewController.swift in Sources */,
@@ -2929,12 +2975,14 @@
 				BF9ABA4B22DD1380008935CF /* NavigationBar.swift in Sources */,
 				A8FD917B2D0472DD00322782 /* DeprecatedAPIs.swift in Sources */,
 				BF6C8FAC242935ED00125131 /* NSAttributedString+Markdown.m in Sources */,
+				A8C38C382D2084D000E83DBD /* ConsoleLogView.swift in Sources */,
 				BFF00D322501BDA100746320 /* BackgroundRefreshAppsOperation.swift in Sources */,
 				BF0C4EBD22A1BD8B009A2DD7 /* AppManager.swift in Sources */,
 				BF2901312318F7A800D88A45 /* AppBannerView.swift in Sources */,
 				0EE7FDC42BE8BC7900D1E390 /* ALTLocalizedError.swift in Sources */,
 				BFF00D342501BDCF00746320 /* IntentHandler.swift in Sources */,
 				BFDBBD80246CB84F004ED2F3 /* RemoveAppBackupOperation.swift in Sources */,
+				A8C38C2A2D206AC100E83DBD /* OutputStream.swift in Sources */,
 				BFF0B6942321CB85007A79E1 /* AuthenticationViewController.swift in Sources */,
 				0EE7FDCD2BE9124400D1E390 /* ErrorDetailsViewController.swift in Sources */,
 				D561AF822B21669400BF59C6 /* VerifyAppPledgeOperation.swift in Sources */,

AltStore/AppDelegate.swift

@@ -41,8 +41,14 @@ final class AppDelegate: UIResponder, UIApplicationDelegate {
     private let intentHandler = IntentHandler()
     private let viewAppIntentHandler = ViewAppIntentHandler()
     
+    public let consoleLog = ConsoleLog()
+    
     func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool
     {
+        
+        // start logging to console immediately on startup
+        consoleLog.startCapturing()
+        
         // Override point for customization after application launch.
 //        UserDefaults.standard.setValue(true, forKey: "com.apple.CoreData.MigrationDebug")
 //        UserDefaults.standard.setValue(true, forKey: "com.apple.CoreData.SQLDebug")
@@ -130,6 +136,11 @@ final class AppDelegate: UIResponder, UIApplicationDelegate {
         default: return nil
         }
     }
+    
+    func applicationWillTerminate(_ application: UIApplication) {
+        // Stop console logging and clean up resources
+        consoleLog.stopCapturing()
+    }
 }
 
 extension AppDelegate

AltStore/Settings/Error Log/ConsoleLogView.swift

@@ -0,0 +1,123 @@
+//
+//  ConsoleLogView.swift
+//  AltStore
+//
+//  Created by Magesh K on 29/12/24.
+//  Copyright © 2024 SideStore. All rights reserved.
+//
+import SwiftUI
+
+class ConsoleLogViewModel: ObservableObject {
+    @Published var logLines: [String] = []
+    
+    private var fileWatcher: DispatchSourceFileSystemObject?
+    
+    private let backgroundQueue = DispatchQueue(label: "com.myapp.backgroundQueue", qos: .background)
+    private var logURL: URL
+    
+    init(logURL: URL) {
+        self.logURL = logURL
+        startFileWatcher() // Start monitoring the log file for changes
+        reloadLogData() // Load initial log data
+    }
+    
+    private func startFileWatcher() {
+        let fileDescriptor = open(logURL.path, O_RDONLY)
+        guard fileDescriptor != -1 else {
+            print("Unable to open file for reading.")
+            return
+        }
+        
+        fileWatcher = DispatchSource.makeFileSystemObjectSource(fileDescriptor: fileDescriptor, eventMask: .write, queue: backgroundQueue)
+        fileWatcher?.setEventHandler {
+            self.reloadLogData()
+        }
+        fileWatcher?.resume()
+    }
+    
+    private func reloadLogData() {
+        if let fileContents = try? String(contentsOf: logURL) {
+            let lines = fileContents.split(whereSeparator: \.isNewline).map { String($0) }
+            DispatchQueue.main.async {
+                self.logLines = lines
+            }
+        }
+    }
+    
+    deinit {
+        fileWatcher?.cancel()
+    }
+}
+
+
+public struct ConsoleLogView: View {
+    
+    @ObservedObject var viewModel: ConsoleLogViewModel
+    @State private var isAtBottom: Bool = true
+//    private let linesToShow: Int = 100  // Number of lines to show at once
+    @State private var scrollToBottom: Bool = false  // State variable to trigger scroll
+
+    init(logURL: URL) {
+        self.viewModel = ConsoleLogViewModel(logURL: logURL)
+    }
+    
+    public var body: some View {
+       VStack {
+           // Custom Header Bar (similar to QuickLook's preview screen)
+           HStack {
+               Text("Console Log")
+                   .font(.system(size: 22, weight: .semibold))
+                   .foregroundColor(.white)
+               Spacer()
+               SwiftUI.Button(action: {
+                   scrollToBottom.toggle()
+               }) {
+                   Image(systemName: "ellipsis")
+                       .foregroundColor(.white)
+                       .imageScale(.large)
+               }
+           }
+           .padding(15)
+           .padding(.top, 5)
+           .padding(.bottom, 2.5)
+           .background(Color.black.opacity(0.9))
+           .overlay(
+               Rectangle()
+                   .frame(height: 1)
+                   .foregroundColor(Color.gray.opacity(0.2)), alignment: .bottom
+           )
+
+           // Main Log Display (scrollable area)
+           ScrollView(.vertical) {
+               ScrollViewReader { scrollViewProxy in
+                   LazyVStack(alignment: .leading, spacing: 4) {
+                       ForEach(viewModel.logLines.indices, id: \.self) { index in
+                           Text(viewModel.logLines[index])
+                               .font(.system(size: 12, design: .monospaced))
+                               .foregroundColor(.white)
+                       }
+                   }
+                   .onChange(of: scrollToBottom) { _ in
+                       scrollToBottomIfNeeded(scrollViewProxy: scrollViewProxy)
+                   }
+               }
+           }
+       }
+       .background(Color.black)  // Set background color to mimic QL's dark theme
+       .edgesIgnoringSafeArea(.all)
+    }
+    
+    // Scroll to the last index (bottom) only if logLines is not empty
+    private func scrollToBottomIfNeeded(scrollViewProxy: ScrollViewProxy) {
+        // Ensure we have log data before attempting to scroll
+        guard !viewModel.logLines.isEmpty else {
+            return
+        }
+        
+        let last    = viewModel.logLines.count - 1
+        let lastIdx = viewModel.logLines.indices.last
+        assert(last == lastIdx)
+//        scrollViewProxy.scrollTo(lastIdx, anchor: .bottom)
+        scrollViewProxy.scrollTo(last, anchor: .bottom)
+    }
+}

AltStore/Settings/Error Log/ErrorLogViewController.swift

@@ -16,6 +16,7 @@ import Roxas
 import Nuke
 
 import QuickLook
+import SwiftUI
 
 final class ErrorLogViewController: UITableViewController, QLPreviewControllerDelegate
 {
@@ -216,13 +217,122 @@ private extension ErrorLogViewController
         }
     }
     
-    @IBAction func showMinimuxerLogs(_ sender: UIBarButtonItem)
+    
-    {
+    enum LogView: String {
-        // Show minimuxer.log
+        case consoleLog = "console-log"
+        case minimuxerLog = "minimuxer-log"
+
+//        // This class will manage the QLPreviewController and the timer.
+//        private class LogViewManager {
+//            var previewController: QLPreviewController
+//            var refreshTimer: Timer?
+//
+//            init(previewController: QLPreviewController) {
+//                self.previewController = previewController
+//            }
+//
+//            // Start refreshing the preview controller every second
+//            func startRefreshing() {
+//                refreshTimer = Timer.scheduledTimer(timeInterval: 1.0, target: self, selector: #selector(refreshPreview), userInfo: nil, repeats: true)
+//            }
+//
+//            @objc private func refreshPreview() {
+//                previewController.reloadData()
+//            }
+//
+//            // Stop the timer to prevent leaks
+//            func stopRefreshing() {
+//                refreshTimer?.invalidate()
+//                refreshTimer = nil
+//            }
+//        }
+//        
+//        // Method to get the QLPreviewController for this log type
+//        func getViewController(_ dataSource: QLPreviewControllerDataSource) -> QLPreviewController {
+//            let previewController = QLPreviewController()
+//            previewController.restorationIdentifier = self.rawValue
+//            previewController.dataSource = dataSource
+//
+//            // Create LogViewManager and start refreshing
+//            let manager = LogViewManager(previewController: previewController)
+//            manager.startRefreshing()
+//
+//            return previewController
+//        }
+
+        // This class will manage the QLPreviewController and the timer.
+        private class LogViewManager {
+            var previewController: QLPreviewController
+            var refreshTimer: Timer?
+            var logView: LogView
+
+            init(previewController: QLPreviewController, logView: LogView) {
+                self.previewController = previewController
+                self.logView = logView
+            }
+
+            // Start refreshing the preview controller every second
+            func startRefreshing() {
+                refreshTimer = Timer.scheduledTimer(timeInterval: 1.0, target: self, selector: #selector(refreshPreview), userInfo: nil, repeats: true)
+            }
+
+            @objc private func refreshPreview() {
+                previewController.reloadData()
+            }
+
+            // Stop the timer to prevent leaks
+            func stopRefreshing() {
+                refreshTimer?.invalidate()
+                refreshTimer = nil
+            }
+
+            func updateLogPath() {
+                // Force the QLPreviewController to reload by changing the file path
+                previewController.reloadData()
+            }
+        }
+
+        // Method to get the QLPreviewController for this log type
+        func getViewController(_ dataSource: QLPreviewControllerDataSource) -> QLPreviewController {
             let previewController = QLPreviewController()
-        previewController.dataSource = self
+            previewController.restorationIdentifier = self.rawValue
-        let navigationController = UINavigationController(rootViewController: previewController)
+            previewController.dataSource = dataSource
-        present(navigationController, animated: true, completion: nil)
+
+            // Create LogViewManager and start refreshing
+            let manager = LogViewManager(previewController: previewController, logView: self)
+            manager.startRefreshing()
+
+            return previewController
+        }
+        
+        func getLogPath() -> URL {
+            switch self {
+                case .consoleLog:
+                    let appDelegate = UIApplication.shared.delegate as! AppDelegate
+                    return appDelegate.consoleLog.logFileURL
+                case .minimuxerLog:
+                    return FileManager.default.documentsDirectory.appendingPathComponent("minimuxer.log")
+            }
+        }
+    }
+    
+    @IBAction func showMinimuxerLogs(_ sender: UIBarButtonItem) {
+        // Create the SwiftUI ConsoleLogView with the URL
+        let consoleLogView = ConsoleLogView(logURL: (UIApplication.shared.delegate as! AppDelegate).consoleLog.logFileURL)
+        
+        // Create the UIHostingController
+        let consoleLogController = UIHostingController(rootView: consoleLogView)
+        
+        // Configure the bottom sheet presentation
+        consoleLogController.modalPresentationStyle = .pageSheet
+        if let sheet = consoleLogController.sheetPresentationController {
+            sheet.detents = [.medium(), .large()]  // You can adjust the size of the sheet (medium/large)
+            sheet.prefersGrabberVisible = true    // Optional: Shows a grabber at the top of the sheet
+            sheet.selectedDetentIdentifier = .large  // Default size when presented
+        }
+        
+        // Present the bottom sheet
+        present(consoleLogController, animated: true, completion: nil)
     }
         
     @IBAction func clearLoggedErrors(_ sender: UIBarButtonItem)
@@ -297,13 +407,21 @@ private extension ErrorLogViewController
                 
                 // All logs since the app launched.
                 let position = store.position(timeIntervalSinceLatestBoot: 0)
-                let predicate = NSPredicate(format: "subsystem == %@", Logger.altstoreSubsystem)
+//                let predicate = NSPredicate(format: "subsystem == %@", Logger.altstoreSubsystem)
+//                
+//                let entries = try store.getEntries(at: position, matching: predicate)
+//                    .compactMap { $0 as? OSLogEntryLog }
+//                    .map { "[\($0.date.formatted())] [\($0.category)] [\($0.level.localizedName)] \($0.composedMessage)" }
+//
+                // Remove the predicate to get all log entries
+//                let entries = try store.getEntries(at: position)
+//                    .compactMap { $0 as? OSLogEntryLog }
+//                    .map { "[\($0.date.formatted())] [\($0.category)] [\($0.level.localizedName)] \($0.composedMessage)" }
 
-                let entries = try store.getEntries(at: position, matching: predicate)
+                let entries = try store.getEntries(at: position)
-                    .compactMap { $0 as? OSLogEntryLog }
-                    .map { "[\($0.date.formatted())] [\($0.category)] [\($0.level.localizedName)] \($0.composedMessage)" }
 
-                let outputText = entries.joined(separator: "\n")
+//                let outputText = entries.joined(separator: "\n")
+                let outputText = entries.map { $0.description }.joined(separator: "\n")
                 
                 let outputDirectory = FileManager.default.uniqueTemporaryURL()
                 try FileManager.default.createDirectory(at: outputDirectory, withIntermediateDirectories: true)
@@ -412,9 +530,13 @@ extension ErrorLogViewController: QLPreviewControllerDataSource {
         return 1
     }
 
-    func previewController(_ controller: QLPreviewController, previewItemAt index: Int) -> QLPreviewItem {
+    func previewController(_ controller: QLPreviewController, previewItemAt index: Int) -> QLPreviewItem
-        let fileURL = FileManager.default.documentsDirectory.appendingPathComponent("minimuxer.log")
+    {
-        return fileURL as QLPreviewItem
+        guard let identifier = controller.restorationIdentifier,
+              let logView = LogView(rawValue: identifier) else {
+            fatalError("Invalid restorationIdentifier")
+        }
+        return logView.getLogPath() as QLPreviewItem
     }
 }
 

SideStore/Utils/common/AbstractClassError.swift

@@ -0,0 +1,12 @@
+//
+//  OutputStream.swift
+//  AltStore
+//
+//  Created by Magesh K on 28/12/24.
+//  Copyright © 2024 SideStore. All rights reserved.
+//
+
+public enum AbstractClassError: Error {
+    case abstractInitializerInvoked
+    case abstractMethodInvoked
+}

SideStore/Utils/common/FileOutputStream.swift

@@ -0,0 +1,29 @@
+//
+//  FileOutputStream.swift
+//  AltStore
+//
+//  Created by Magesh K on 28/12/24.
+//  Copyright © 2024 SideStore. All rights reserved.
+//
+
+import Foundation
+
+public class FileOutputStream: OutputStream {
+    private let fileHandle: FileHandle
+    
+    init(_ fileHandle: FileHandle) {
+        self.fileHandle = fileHandle
+    }
+    
+    public func write(_ data: Data) {
+        fileHandle.write(data)
+    }
+    
+    public func flush() {
+        fileHandle.synchronizeFile()
+    }
+    
+    public func close() {
+        fileHandle.closeFile()
+    }
+}

SideStore/Utils/common/OutputStream.swift

@@ -0,0 +1,15 @@
+//
+//  OutputStream.swift
+//  AltStore
+//
+//  Created by Magesh K on 28/12/24.
+//  Copyright © 2024 SideStore. All rights reserved.
+//
+
+import Foundation
+
+public protocol OutputStream {
+    func write(_ data: Data)
+    func flush()
+    func close()
+}

SideStore/Utils/iostreams/ConsoleLog.swift

@@ -0,0 +1,73 @@
+//
+//  ConsoleLog.swift
+//  AltStore
+//
+//  Created by Magesh K on 25/11/24.
+//  Copyright © 2024 SideStore. All rights reserved.
+//
+//
+
+import Foundation
+
+class ConsoleLog {
+    private static let CONSOLE_LOGS_DIRECTORY = "ConsoleLogs"
+    private static let CONSOLE_LOG_NAME_PREFIX = "console"
+    private static let CONSOLE_LOG_EXTN = ".log"
+    
+    private lazy var consoleLogger: ConsoleLogger = {
+        let logFileHandle = createLogFileHandle()
+        let fileOutputStream = FileOutputStream(logFileHandle)
+        
+        return UnBufferedConsoleLogger(stream: fileOutputStream)
+    }()
+    
+    private lazy var consoleLogsDir: URL = {
+        // create a directory for console logs
+        let docsDir = FileManager.default.documentsDirectory
+        let consoleLogsDir = docsDir.appendingPathComponent(ConsoleLog.CONSOLE_LOGS_DIRECTORY)
+        if !FileManager.default.fileExists(atPath: consoleLogsDir.path) {
+            try! FileManager.default.createDirectory(at: consoleLogsDir, withIntermediateDirectories: true, attributes: nil)
+        }
+        return consoleLogsDir
+    }()
+    
+    public lazy var logName: String = {
+        logFileURL.lastPathComponent
+    }()
+    
+    public lazy var logFileURL: URL = {
+        // get current timestamp
+        let currentTime = Date()
+        let dateTimeStamp = ConsoleLog.getDateInTimeStamp(date: currentTime)
+        
+        // create a log file with the current timestamp
+        let logName = "\(ConsoleLog.CONSOLE_LOG_NAME_PREFIX)-\(dateTimeStamp)\(ConsoleLog.CONSOLE_LOG_EXTN)"
+        let logFileURL = consoleLogsDir.appendingPathComponent(logName)
+        return logFileURL
+    }()
+    
+    
+    private func createLogFileHandle() -> FileHandle {
+        if !FileManager.default.fileExists(atPath: logFileURL.path) {
+            FileManager.default.createFile(atPath: logFileURL.path, contents: nil, attributes: nil)
+        }
+        
+        // return the file handle
+        return try! FileHandle(forWritingTo: logFileURL)
+    }
+    
+    private static func getDateInTimeStamp(date: Date) -> String {
+        let formatter = DateFormatter()
+        formatter.dateFormat = "yyyyMMdd_HHmmss" // Format: 20241228_142345
+        return formatter.string(from: date)
+    }
+    
+    func startCapturing() {
+        consoleLogger.startCapturing()
+    }
+    
+    func stopCapturing() {
+        consoleLogger.stopCapturing()
+    }
+}
+

SideStore/Utils/iostreams/ConsoleLogger.swift

@@ -0,0 +1,166 @@
+//
+//  ConsoleCapture.swift
+//  AltStore
+//
+//  Created by Magesh K on 25/11/24.
+//  Copyright © 2024 SideStore. All rights reserved.
+//
+
+import Foundation
+
+protocol ConsoleLogger{
+    func startCapturing()
+    func stopCapturing()
+}
+
+public class AbstractConsoleLogger<T: OutputStream>: ConsoleLogger{
+    var outPipe: Pipe?
+    var errPipe: Pipe?
+    
+    var outputHandle: FileHandle?
+    var errorHandle:  FileHandle?
+    
+    var originalStdout: Int32?
+    var originalStderr: Int32?
+    
+    let ostream: T
+    
+    let writeQueue = DispatchQueue(label: "async-write-queue")
+    
+    public init(stream: T) throws {
+        // Since swift doesn't support compile time abstract classes Instantiation checking,
+        // we are using runtime check to prevent direct instantiation :(
+        if Self.self === AbstractConsoleLogger.self {
+            throw AbstractClassError.abstractInitializerInvoked
+        }
+        
+        self.ostream = stream
+    }
+    
+    deinit {
+        stopCapturing()
+    }
+    
+    public func startCapturing() {                          // made it public coz, let client ask for capturing
+
+        // if already initialized within current instance, bail out
+        guard outPipe == nil, errPipe == nil else {
+            return
+        }
+        
+        // Create new pipes for stdout and stderr
+        self.outPipe = Pipe()
+        self.errPipe = Pipe()
+        
+        outputHandle = self.outPipe?.fileHandleForReading
+        errorHandle = self.errPipe?.fileHandleForReading
+
+        // Store original file descriptors
+        originalStdout = dup(STDOUT_FILENO)
+        originalStderr = dup(STDERR_FILENO)
+        
+        // Redirect stdout and stderr to our pipes
+        dup2(self.outPipe?.fileHandleForWriting.fileDescriptor ?? -1, STDOUT_FILENO)
+        dup2(self.errPipe?.fileHandleForWriting.fileDescriptor ?? -1, STDERR_FILENO)
+
+        // Setup readability handlers for raw data
+        setupReadabilityHandler(for: outputHandle, isError: false)
+        setupReadabilityHandler(for: errorHandle, isError: true)
+    }
+
+    private func setupReadabilityHandler(for handle: FileHandle?, isError: Bool) {
+        handle?.readabilityHandler = { [weak self] handle in
+            let data = handle.availableData
+            if !data.isEmpty {
+                self?.writeQueue.async {
+                    try? self?.writeData(data)
+                }
+                
+                // Forward to original std stream
+                if let originalFD = isError ? self?.originalStderr : self?.originalStdout {
+                    data.withUnsafeBytes { (bufferPointer) -> Void in
+                        if let baseAddress = bufferPointer.baseAddress, bufferPointer.count > 0 {
+                            write(originalFD, baseAddress, bufferPointer.count)
+                        }
+                    }
+                }
+            }
+        }
+    }
+    
+    func writeData(_ data: Data) throws {
+        throw AbstractClassError.abstractMethodInvoked
+    }
+
+    func stopCapturing() {
+        ostream.close()
+        
+        // Restore original stdout and stderr
+        if let stdout = originalStdout {
+            dup2(stdout, STDOUT_FILENO)
+            close(stdout)
+        }
+        if let stderr = originalStderr {
+            dup2(stderr, STDERR_FILENO)
+            close(stderr)
+        }
+        
+        // Clean up
+        outPipe?.fileHandleForReading.readabilityHandler = nil
+        errPipe?.fileHandleForReading.readabilityHandler = nil
+        outPipe = nil
+        errPipe = nil
+        outputHandle = nil
+        errorHandle = nil
+        originalStdout = nil
+        originalStderr = nil
+    }
+}
+
+
+public class UnBufferedConsoleLogger<T: OutputStream>: AbstractConsoleLogger<T> {
+
+    required override init(stream: T) {
+        // cannot throw abstractInitializerInvoked, so need to override else client needs to handle it unnecessarily
+        try! super.init(stream: stream)
+    }
+    
+    override func writeData(_ data: Data) throws {
+        // directly write data to the stream without buffering
+        ostream.write(data)
+    }
+}
+
+public class BufferedConsoleLogger<T: OutputStream>: AbstractConsoleLogger<T> {
+
+    // Buffer size (bytes) and storage
+    private let maxBufferSize: Int
+    private var bufferedData = Data()
+    
+    required init(stream: T, bufferSize: Int = 1024) {
+        self.maxBufferSize = bufferSize
+        try! super.init(stream: stream)
+    }
+    
+    override func writeData(_ data: Data) throws {
+        // Append data to buffer
+        self.bufferedData.append(data)
+        
+        // Check if the buffer is full and flush
+        if self.bufferedData.count >= self.maxBufferSize {
+            self.flushBuffer()
+        }
+    }
+    
+    private func flushBuffer() {
+        // Write all buffered data to the stream
+        ostream.write(bufferedData)
+        bufferedData.removeAll()
+    }
+
+    override func stopCapturing() {
+        // Flush buffer and close the file handles first
+        flushBuffer()
+        super.stopCapturing()
+    }
+}