private bool PrepareFile(DistributionFile distributionFile, FileSystemInfo targetDirectory)
{
if (distributionFile.Action == FileProcessingAction.Delete)
{
_logger.LogTrace($"Skipping file marked for delete: {distributionFile.Name}");
return(true);
}
var compressed = new FileInfo(Path.Combine(targetDirectory.FullName, distributionFile.InternalPath, distributionFile.CompressedName));
var decompressed = new FileInfo(Path.Combine(targetDirectory.FullName, distributionFile.InternalPath, distributionFile.Name));
try
{
if (compressed.Exists)
{
compressed.Delete();
}
if (decompressed.Exists)
{
decompressed.Delete();
}
if (!_downloader.TryDownload(distributionFile, compressed.FullName))
{
_logger.LogError($"Can not download file: {compressed.Name}");
return(false);
}
if (compressed.Length != distributionFile.CompressedSize)
{
_logger.LogError($"Downloaded file {compressed.Name} has wrong size: {compressed.Length.ToString()}, has to be: {distributionFile.CompressedSize.ToString()}");
return(false);
}
if (!_decompressor.TryDecompress(distributionFile, compressed, decompressed))
{
_logger.LogError($"Can not decompress file {compressed.Name}");
decompressed.DeleteIfExists();
return(false);
}
if (decompressed.Length != distributionFile.Size)
{
_logger.LogError($"Decompressed file {decompressed.Name} has wrong size: {decompressed.Length.ToString()}, has to be: {distributionFile.Size.ToString()}");
decompressed.DeleteIfExists();
return(false);
}
if (!_verifier.VerifyFile(distributionFile, decompressed))
{
_logger.LogError($"Decompressed file {decompressed.Name} verification failed");
decompressed.DeleteIfExists();
return(false);
}
return(true);
}
finally
{
compressed.DeleteIfExists();
}
}
