private async Task TransferFileAsync(IFileOperationsExecuter sourceFileOps, SlimFileInfo sourceFile, IFileOperationsExecuter targetFileOps, SlimFileSystemInfo target, string targetDirectory)
{
if (target == null)
{
if (this.VerboseLogging)
{
this.LogDebug($"{sourceFile.Name} does not exist in {targetDirectory}.");
}
}
var targetFile = target as SlimFileInfo;
if (targetFile != null)
{
if (this.VerboseLogging)
{
this.LogDebug($"{sourceFile.Name} already exists in {targetDirectory}.");
this.LogDebug($"Source timestamp: {sourceFile.LastWriteTimeUtc}, Target timestamp: {targetFile.LastWriteTimeUtc}");
this.LogDebug($"Source size: {sourceFile.Size}, Target size: {targetFile.Size}");
}
if (sourceFile.LastWriteTimeUtc == targetFile.LastWriteTimeUtc && sourceFile.Size == targetFile.Size)
{
if (this.VerboseLogging)
{
this.LogDebug($"Size and timestamp are the same; skipping {sourceFile.Name}...");
}
return;
}
}
else if (target != null)
{
this.LogDebug($"{sourceFile.Name} is a file in {sourceFile.DirectoryName}, but a directory in {targetDirectory}.");
if (this.VerboseLogging)
{
this.LogDebug($"Deleting directory {target.FullName}...");
}
await targetFileOps.DeleteDirectoryAsync(target.FullName).ConfigureAwait(false);
}
else
{
if (!string.IsNullOrEmpty(targetDirectory))
{
await targetFileOps.CreateDirectoryAsync(targetDirectory).ConfigureAwait(false);
}
}
var targetFileName = PathEx.Combine(targetDirectory, sourceFile.Name).Replace(sourceFileOps.DirectorySeparator, targetFileOps.DirectorySeparator);
if (this.VerboseLogging)
{
this.LogDebug($"Transferring {sourceFile.Name} to {targetDirectory}...");
}
using (var sourceStream = await sourceFileOps.OpenFileAsync(sourceFile.FullName, FileMode.Open, FileAccess.Read).ConfigureAwait(false))
using (var targetStream = await targetFileOps.OpenFileAsync(targetFileName, FileMode.Create, FileAccess.Write).ConfigureAwait(false))
{
await sourceStream.CopyToAsync(targetStream).ConfigureAwait(false);
}
if (this.SetLastModifiedDate)
{
await targetFileOps.SetLastWriteTimeAsync(targetFileName, sourceFile.LastWriteTimeUtc).ConfigureAwait(false);
}
}
