private static async Task TarFolderCore(FileSystemStorageFolder Folder, TarOutputStream OutputStream, string BaseFolderName, ByteReadChangedEventHandler ByteReadHandler = null)
{
IReadOnlyList <FileSystemStorageItemBase> ItemList = await Folder.GetChildItemsAsync(true, true).ConfigureAwait(false);
if (ItemList.Count == 0)
{
if (!string.IsNullOrEmpty(BaseFolderName))
{
TarEntry NewEntry = TarEntry.CreateTarEntry($"{BaseFolderName}/");
OutputStream.PutNextEntry(NewEntry);
OutputStream.CloseEntry();
}
}
else
{
ulong CurrentPosition = 0;
foreach (FileSystemStorageItemBase Item in ItemList)
{
switch (Item)
{
case FileSystemStorageFolder InnerFolder:
{
ulong InnerFolderSize = 0;
await TarFolderCore(InnerFolder, OutputStream, $"{BaseFolderName}/{InnerFolder.Name}", ByteReadHandler : (ByteRead) =>
{
InnerFolderSize = ByteRead;
ByteReadHandler?.Invoke(CurrentPosition + ByteRead);
}).ConfigureAwait(false);
ByteReadHandler?.Invoke(CurrentPosition += InnerFolderSize);
break;
}
case FileSystemStorageFile InnerFile:
{
using (FileStream FileStream = await InnerFile.GetFileStreamFromFileAsync(AccessMode.Read).ConfigureAwait(false))
{
TarEntry NewEntry = TarEntry.CreateTarEntry($"{BaseFolderName}/{InnerFile.Name}");
NewEntry.ModTime = DateTime.Now;
NewEntry.Size = FileStream.Length;
OutputStream.PutNextEntry(NewEntry);
await FileStream.CopyToAsync(OutputStream, ProgressHandler : (s, e) =>
{
ByteReadHandler?.Invoke(CurrentPosition + Convert.ToUInt64(e.ProgressPercentage / 100d * InnerFile.SizeRaw));
}).ConfigureAwait(false);
}
OutputStream.CloseEntry();
ByteReadHandler?.Invoke(CurrentPosition += InnerFile.SizeRaw);
break;
}
}
}
}
}
private static async Task ZipFolderCore(FileSystemStorageFolder Folder, ZipOutputStream OutputStream, string BaseFolderName, CompressionAlgorithm Algorithm, ByteReadChangedEventHandler ByteReadHandler = null)
{
IReadOnlyList <FileSystemStorageItemBase> ItemList = await Folder.GetChildItemsAsync(true, true).ConfigureAwait(false);
if (ItemList.Count == 0)
{
if (!string.IsNullOrEmpty(BaseFolderName))
{
ZipEntry NewEntry = new ZipEntry($"{BaseFolderName}/")
{
DateTime = DateTime.Now
};
OutputStream.PutNextEntry(NewEntry);
OutputStream.CloseEntry();
}
}
else
{
ulong CurrentPosition = 0;
foreach (FileSystemStorageItemBase Item in ItemList)
{
switch (Item)
{
case FileSystemStorageFolder InnerFolder:
{
ulong InnerFolderSize = 0;
await ZipFolderCore(InnerFolder, OutputStream, $"{BaseFolderName}/{Item.Name}", Algorithm, (ByteRead) =>
{
InnerFolderSize = ByteRead;
ByteReadHandler?.Invoke(CurrentPosition + ByteRead);
}).ConfigureAwait(false);
ByteReadHandler?.Invoke(CurrentPosition += InnerFolderSize);
break;
}
case FileSystemStorageFile InnerFile:
{
using (FileStream FileStream = await InnerFile.GetFileStreamFromFileAsync(AccessMode.Read).ConfigureAwait(false))
{
ZipEntry NewEntry = new ZipEntry($"{BaseFolderName}/{Item.Name}")
{
DateTime = DateTime.Now,
CompressionMethod = Algorithm == CompressionAlgorithm.None ? CompressionMethod.Stored : Enum.Parse <CompressionMethod>(Enum.GetName(typeof(CompressionAlgorithm), Algorithm)),
Size = FileStream.Length
};
OutputStream.PutNextEntry(NewEntry);
await FileStream.CopyToAsync(OutputStream, ProgressHandler : (s, e) =>
{
ByteReadHandler?.Invoke(CurrentPosition + Convert.ToUInt64(e.ProgressPercentage / 100d * InnerFile.SizeRaw));
}).ConfigureAwait(false);
}
OutputStream.CloseEntry();
ByteReadHandler?.Invoke(CurrentPosition += Item.SizeRaw);
break;
}
}
}
}
}