// copy given file from source to target directory if appropriate
public void SynchronizeFile(string file)
{
if (SourceAccessor.FileExists(file))
{
if (CopyFile(file))
{
#if DEBUG
Console.WriteLine("copying from {1} to {2}: {0}", file, SourceAccessor, TargetAccessor);
#endif
using (var sourceStream = SourceAccessor.GetFileContents(file)) {
DateTime writeTime = SourceAccessor.GetLastWriteTime(file);
int attributes = SourceAccessor.GetFileAttributes(file);
TargetAccessor.WriteFile(file, sourceStream, writeTime, attributes);
}
synchronizedFiles.Add(file);
}
}
else if (DeleteAdditionalFiles && TargetAccessor.FileExists(file))
{
#if DEBUG
Console.WriteLine("deleting {0} from {1}", file, TargetAccessor);
#endif
TargetAccessor.DeleteFile(file);
synchronizedFiles.Add(file);
}
}
// copy all files in given directory and iterate all subdirectories
void CopyFilesFromDirectories(string dir)
{
foreach (string filename in SourceAccessor.GetFiles(dir))
{
SynchronizeFile(filename);
}
foreach (string directory in SourceAccessor.GetDirectories(dir))
{
CopyFilesFromDirectories(directory);
}
}
/*
* Perform synchronization between the two directories.
*/
public void Synchronize(string directory = "")
{
if (SourceAccessor == null || TargetAccessor == null)
{
throw new InvalidOperationException("Cannot decide source or target directory");
}
if (CopyFile == null)
{
throw new InvalidOperationException("Cannot decide what files to copy");
}
#if DEBUG
Console.WriteLine("synchronizing {2} from {0} to {1}", SourceAccessor, TargetAccessor, directory);
#endif
// remove files that are in the target, but not in the source folder
if (DeleteAdditionalFiles)
{
DeleteFilesFromTarget(directory);
}
// copy files from the source to the target folder
if (SourceAccessor.DirectoryExists(directory))
{
CopyFilesFromDirectories(directory);
}
}