source-code

source-code/ALTs/AltStore/Operations/RemoveAppBackupOperation.swift

@@ -0,0 +1,79 @@
+//
+//  RemoveAppBackupOperation.swift
+//  AltStore
+//
+//  Created by Riley Testut on 5/13/20.
+//  Copyright © 2020 Riley Testut. All rights reserved.
+//
+
+import Foundation
+
+import AltKit
+
+@objc(RemoveAppBackupOperation)
+class RemoveAppBackupOperation: ResultOperation<Void>
+{
+    let context: InstallAppOperationContext
+    
+    private let coordinator = NSFileCoordinator()
+    private let coordinatorQueue = OperationQueue()
+    
+    init(context: InstallAppOperationContext)
+    {
+        self.context = context
+        
+        super.init()
+        
+        self.coordinatorQueue.name = "AltStore - RemoveAppBackupOperation Queue"
+    }
+    
+    override func main()
+    {
+        super.main()
+        
+        if let error = self.context.error
+        {
+            self.finish(.failure(error))
+            return
+        }
+        
+        guard let installedApp = self.context.installedApp else { return self.finish(.failure(OperationError.invalidParameters)) }
+        installedApp.managedObjectContext?.perform {
+            guard let backupDirectoryURL = FileManager.default.backupDirectoryURL(for: installedApp) else { return self.finish(.failure(OperationError.missingAppGroup)) }
+            
+            let intent = NSFileAccessIntent.writingIntent(with: backupDirectoryURL, options: [.forDeleting])
+            self.coordinator.coordinate(with: [intent], queue: self.coordinatorQueue) { (error) in
+                do
+                {
+                    if let error = error
+                    {
+                        throw error
+                    }
+                    
+                    try FileManager.default.removeItem(at: intent.url)
+                    
+                    self.finish(.success(()))
+                }
+                catch let error as CocoaError where error.code == CocoaError.Code.fileNoSuchFile
+                {
+                    #if DEBUG
+                    
+                    // When debugging, it's expected that app groups don't match, so ignore.
+                    self.finish(.success(()))
+                    
+                    #else
+                    
+                    print("Failed to remove app backup directory:", error)
+                    self.finish(.failure(error))
+                    
+                    #endif
+                }
+                catch
+                {
+                    print("Failed to remove app backup directory:", error)
+                    self.finish(.failure(error))
+                }
+            }
+        }
+    }
+}