[ADD] LocalConsole showing STDOUT and STDERR

AltStore/AppDelegate.swift

@@ -58,6 +58,9 @@ final class AppDelegate: UIResponder, UIApplicationDelegate {
     
     func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool
     {
+        // Copy STDOUT and STDERR to the logging console
+        _ = OutputCapturer.shared
+
         // Register default settings before doing anything else.
         UserDefaults.registerDefaults()
         

AltStore/Manager/OutputCapturer.swift

@@ -0,0 +1,49 @@
+//
+//  OutputCapturer.swift
+//  SideStore
+//
+//  Created by Fabian Thies on 12.02.23.
+//  Copyright © 2023 SideStore. All rights reserved.
+//
+
+import Foundation
+import LocalConsole
+
+class OutputCapturer {
+    
+    public static let shared = OutputCapturer()
+
+    private let consoleManager = LCManager.shared
+
+    private var inputPipe = Pipe()
+    private var errorPipe = Pipe()
+    
+    private init() {
+        // Setup pipe file handlers
+        self.inputPipe.fileHandleForReading.readabilityHandler = { [weak self] fileHandle in
+            self?.handle(data: fileHandle.availableData)
+        }
+        self.errorPipe.fileHandleForReading.readabilityHandler = { [weak self] fileHandle in
+            self?.handle(data: fileHandle.availableData, isError: true)
+        }
+
+        // Intercept STDOUT and STDERR
+        dup2(self.inputPipe.fileHandleForWriting.fileDescriptor, STDOUT_FILENO)
+        dup2(self.errorPipe.fileHandleForWriting.fileDescriptor, STDERR_FILENO)
+    }
+
+    deinit {
+        try? self.inputPipe.fileHandleForReading.close()
+        try? self.errorPipe.fileHandleForReading.close()
+    }
+
+    private func handle(data: Data, isError: Bool = false) {
+        guard let string = String(data: data, encoding: .utf8) else {
+            return
+        }
+
+        DispatchQueue.main.async {
+            self.consoleManager.print(string)
+        }
+    }
+}

AltStore/Views/Settings/SettingsView.swift

@@ -9,6 +9,7 @@
 import SwiftUI
 import AsyncImage
 import SFSafeSymbols
+import LocalConsole
 import AltStoreCore
 import Intents
 
@@ -157,6 +158,10 @@ struct SettingsView: View {
                     RefreshAttemptsView()
                 }
 
+                SwiftUI.Button("Toggle Console") {
+                    LCManager.shared.isVisible.toggle()
+                }
+
                 if MailComposeView.canSendMail {
                     SwiftUI.Button("Send Feedback") {
                         self.isShowingFeedbackMailView = true