private void CheckForLocalFile(GFile gFile, SyncResultsBuilder results)
{
var fullPath = GetFileFolderPath(gFile);
_logger.LogInformation($"New File \"{fullPath}\"");
var localPath = Path.Combine(Config.DestinationPath, fullPath);
var downloadFile = new DownloadableFile(gFile, localPath);
try
{
if (LFile.Exists(localPath))
{
_logger.LogInformation(" File exists");
if (Config.ForceDownloads)
{
_logger.LogInformation($" Force downloads enabled, will download to: {localPath}");
_filesToDownload.Add(downloadFile);
return;
}
var lFileInfo = new FileInfo(localPath);
if (lFileInfo.LastWriteTimeUtc <= (gFile.ModifiedTime ?? gFile.CreatedTime))
{
_logger.LogInformation($" Google file is newer, will download to: {localPath}");
_filesToDownload.Add(downloadFile);
}
}
else
{
// File doesn't exist, download it
_logger.LogInformation($" File does not exist, downloading to: {localPath}");
_filesToDownload.Add(downloadFile);
}
}
catch (Exception exception)
{
var error = downloadFile.ToErroredFile(exception);
results.ErroredFiles.Add(error);
}
}
private void DownloadFile(DownloadableFile download, SyncResultsBuilder results)
{
_logger.LogInformation($"[dl: {download.GFile.Name}] download starting at {download.Destination}");
var sanitizedDestination = SanatizePath(download.Destination);
if (sanitizedDestination != download.Destination)
{
_logger.LogError($"[dl: {download.GFile.Name}] Warning: Invalid Destination path. Will use \"{sanitizedDestination}\" instead");
}
// Create the directorys (if they dont exist) to avoid exception when making file
var folderPath = Path.GetDirectoryName(sanitizedDestination);
Directory.CreateDirectory(folderPath);
// Create the file in a temp location to avoid overwriting the file and corrupting if the download is broken
var tempFile = sanitizedDestination + ".temp";
try
{
using (var stream = new FileStream(tempFile, FileMode.Create))
{
var request = _service.Files.Get(download.GFile.Id);
// Add a handler which will be notified on progress changes.
// It will notify on each chunk download and when the
// download is completed or failed.
request.MediaDownloader.ProgressChanged +=
(IDownloadProgress progress) =>
{
switch (progress.Status)
{
case DownloadStatus.Downloading:
{
string percent;
if (download.GFile.Size.HasValue)
{
percent = $"{((100 * progress.BytesDownloaded) / download.GFile.Size.Value)}%";
}
else
{
percent = "...";
}
_logger.LogInformation($"[dl: {download.GFile.Name}] {percent}");
break;
}
case DownloadStatus.Completed:
{
_logger.LogInformation($"[dl: {download.GFile.Name}] Download complete.");
results.SuccessfulDownloads.Add(download);
break;
}
case DownloadStatus.Failed:
{
_logger.LogError($"[dl: {download.GFile.Name}] Download failed. Exception: {progress.Exception.Message}");
results.ErroredFiles.Add(download.ToErroredFile(progress.Exception));
break;
}
}
};
request.DownloadWithStatus(stream);
stream.Dispose();
// Finished downloading, delete the original and rename the temp to the original
LFile.Delete(sanitizedDestination);
LFile.Move(tempFile, sanitizedDestination);
}
}
catch (Exception exception)
{
_logger.LogError($"[dl: {download?.GFile?.Name}] Download failed. Exception: {exception.Message}");
_logger.LogError(exception.Message);
if (download?.GFile != null)
{
var errorFile = download.ToErroredFile(exception);
results.ErroredFiles.Add(errorFile);
}
}
}
public static ErroredFile FromDownloadableFile(DownloadableFile download, Exception exception)
{
return(new ErroredFile(download, exception));
}
public ErroredFile(DownloadableFile file, Exception exception)
{
File = file;
Exception = exception;
}