private static async Task TarFolderCore(FileSystemStorageFolder Folder, TarOutputStream OutputStream, string BaseFolderName, ProgressChangedEventHandler ProgressHandler = null)
{
List <FileSystemStorageItemBase> ItemList = await Folder.GetChildItemsAsync(true).ConfigureAwait(false);
if (ItemList.Count == 0)
{
if (!string.IsNullOrEmpty(BaseFolderName))
{
TarEntry NewEntry = TarEntry.CreateTarEntry($"{BaseFolderName}/");
OutputStream.PutNextEntry(NewEntry);
OutputStream.CloseEntry();
}
}
else
{
ulong TotalSize = await Folder.GetFolderSizeAsync().ConfigureAwait(false);
ulong CurrentPosition = 0;
foreach (FileSystemStorageItemBase Item in ItemList)
{
switch (Item)
{
case FileSystemStorageFolder InnerFolder:
{
ulong InnerFolderSize = await InnerFolder.GetFolderSizeAsync().ConfigureAwait(false);
await TarFolderCore(InnerFolder, OutputStream, $"{BaseFolderName}/{InnerFolder.Name}", ProgressHandler : (s, e) =>
{
if (TotalSize > 0)
{
ProgressHandler?.Invoke(null, new ProgressChangedEventArgs(Convert.ToInt32((CurrentPosition + Convert.ToUInt64(e.ProgressPercentage / 100d * InnerFolderSize)) * 100d / TotalSize), null));
}
}).ConfigureAwait(false);
if (TotalSize > 0)
{
CurrentPosition += InnerFolderSize;
ProgressHandler?.Invoke(null, new ProgressChangedEventArgs(Convert.ToInt32(CurrentPosition * 100d / TotalSize), null));
}
break;
}
case FileSystemStorageFile InnerFile:
{
using (FileStream FileStream = await InnerFile.GetFileStreamFromFileAsync(AccessMode.Read).ConfigureAwait(false))
{
TarEntry NewEntry = TarEntry.CreateTarEntry($"{BaseFolderName}/{InnerFile.Name}");
NewEntry.ModTime = DateTime.Now;
NewEntry.Size = FileStream.Length;
OutputStream.PutNextEntry(NewEntry);
await FileStream.CopyToAsync(OutputStream, (s, e) =>
{
ProgressHandler?.Invoke(null, new ProgressChangedEventArgs(Convert.ToInt32((CurrentPosition + Convert.ToUInt64(e.ProgressPercentage / 100d * InnerFile.SizeRaw)) * 100d / TotalSize), null));
}).ConfigureAwait(false);
}
if (TotalSize > 0)
{
CurrentPosition += InnerFile.SizeRaw;
ProgressHandler?.Invoke(null, new ProgressChangedEventArgs(Convert.ToInt32(CurrentPosition * 100d / TotalSize), null));
}
break;
}
}
}
}
}
