Prevent iCloud backups of downloads

ios/App/App/plugins/AbsDownloader.swift

@@ -11,7 +11,7 @@ import Capacitor
 @objc(AbsDownloader)
 public class AbsDownloader: CAPPlugin, URLSessionDownloadDelegate {
     
-    static let downloadsDirectory = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)[0]
+    static private let downloadsDirectory = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)[0]
     
     typealias DownloadProgressHandler = (_ downloadItem: DownloadItem, _ downloadItemPart: inout DownloadItemPart) throws -> Void
     
@@ -307,16 +307,34 @@ public class AbsDownloader: CAPPlugin, URLSessionDownloadDelegate {
         let itemDirectory = item.id
         NSLog("ITEM DIR \(itemDirectory)")
         
-        do {
+        guard AbsDownloader.itemDownloadFolder(path: itemDirectory) != nil else {
-            try FileManager.default.createDirectory(at: AbsDownloader.downloadsDirectory.appendingPathComponent(itemDirectory), withIntermediateDirectories: true)
+            NSLog("Failed to CREATE LI DIRECTORY \(itemDirectory)")
-        } catch {
-            NSLog("Failed to CREATE LI DIRECTORY \(error)")
             throw LibraryItemDownloadError.failedDirectory
         }
         
         return itemDirectory
     }
     
+    static func itemDownloadFolder(path: String) -> URL? {
+        do {
+            var itemFolder = AbsDownloader.downloadsDirectory.appendingPathComponent(path)
+            
+            if !FileManager.default.fileExists(atPath: itemFolder.path) {
+                try FileManager.default.createDirectory(at: itemFolder, withIntermediateDirectories: true)
+            }
+            
+            // Make sure we don't backup download files to iCloud
+            var resourceValues = URLResourceValues()
+            resourceValues.isExcludedFromBackup = true
+            try itemFolder.setResourceValues(resourceValues)
+            
+            return itemFolder
+        } catch {
+            NSLog("Failed to CREATE LI DIRECTORY \(error)")
+            return nil
+        }
+    }
+    
 }
 
 enum LibraryItemDownloadError: String, Error {

ios/App/Shared/models/DownloadItem.swift

@@ -82,7 +82,7 @@ struct DownloadItemPart: Realmable, Codable {
     var destinationUri: String?
     var destinationURL: URL? {
         if let destinationUri = self.destinationUri {
-            return AbsDownloader.downloadsDirectory.appendingPathComponent(destinationUri)
+            return AbsDownloader.itemDownloadFolder(path: destinationUri)!
         } else {
             return nil
         }

ios/App/Shared/models/LocalLibrary.swift

@@ -25,7 +25,7 @@ struct LocalLibraryItem: Realmable, Codable {
     
     var contentUrl: String? {
         if let path = _contentUrl {
-            return AbsDownloader.downloadsDirectory.appendingPathComponent(path).absoluteString
+            return AbsDownloader.itemDownloadFolder(path: path)!.absoluteString
         } else {
             return nil
         }
@@ -33,7 +33,7 @@ struct LocalLibraryItem: Realmable, Codable {
     
     var coverContentUrl: String? {
         if let path = self._coverContentUrl {
-            return AbsDownloader.downloadsDirectory.appendingPathComponent(path).absoluteString
+            return AbsDownloader.itemDownloadFolder(path: path)!.absoluteString
         } else {
             return nil
         }
@@ -93,7 +93,7 @@ struct LocalFile: Realmable, Codable {
     var size: Int = 0
     
     var contentUrl: String {
-        return AbsDownloader.downloadsDirectory.appendingPathComponent(_contentUrl).absoluteString
+        return AbsDownloader.itemDownloadFolder(path: _contentUrl)!.absoluteString
     }
     
     static func primaryKey() -> String? {