public static async Task <string> ExportTempFileAsync(this UniversalPackageFile file)
{
var tempDir = CreateTempDirectory();
var fileName = await ExportTempFileAsync(tempDir, file);
AppDomain.CurrentDomain.DomainUnload += (s, _e) =>
{
try
{
Directory.Delete(tempDir, true);
}
catch
{
}
};
return(fileName);
}
private static async Task <string> ExportTempFileAsync(string basePath, UniversalPackageFile file)
{
var fullName = Path.Combine(basePath, file.Name);
if (file.Children == null)
{
using (var stream = new FileStream(fullName, FileMode.Create, FileAccess.Write, FileShare.None, 4096, FileOptions.Asynchronous | FileOptions.SequentialScan))
{
await file.CopyToAsync(stream);
}
}
else
{
Directory.CreateDirectory(fullName);
foreach (var child in file.Children)
{
await ExportTempFileAsync(fullName, child);
}
}
return(fullName);
}