/// <summary>Builds the command-line switches for Robocopy.</summary>
private static string BuildSwitches(MirrorTask task, string sourceFolder)
{
string basicSwitches = string.IsNullOrEmpty(task.CustomRobocopySwitches)
? Properties.Settings.Default.RobocopySwitches
: task.CustomRobocopySwitches;
// if supported, use Robocopy's backup mode to avoid access denied errors
if (UacHelper.IsRobocopyBackupModeSupported())
{
// do the basic switches include restartable mode (/z)?
int zIndex = basicSwitches.IndexOf("/z ", StringComparison.OrdinalIgnoreCase);
if (zIndex < 0 && basicSwitches.EndsWith("/z", StringComparison.OrdinalIgnoreCase))
{
zIndex = basicSwitches.Length - 2;
}
// if so, change /z to /zb to enable restartable mode with backup mode fallback on access denied,
// else add /b for normal backup mode
if (zIndex >= 0)
{
basicSwitches = basicSwitches.Substring(0, zIndex) + "/zb" + basicSwitches.Substring(zIndex + 2);
}
else
{
basicSwitches += " /b";
}
}
var switches = new StringBuilder();
switches.Append(basicSwitches);
if (!string.IsNullOrEmpty(task.ExtendedAttributes))
{
switches.Append(" /copy:dat");
switches.Append(task.ExtendedAttributes);
}
if (task.DeleteExtraItems)
{
switches.Append(" /purge");
}
if (!task.OverwriteNewerFiles)
{
switches.Append(" /xo"); // exclude older files in the source folder
}
if (!string.IsNullOrEmpty(task.ExcludedAttributes))
{
switches.Append(" /xa:");
switches.Append(task.ExcludedAttributes);
}
if (task.ExcludedFiles.Count > 0)
{
switches.Append(" /xf");
foreach (string file in task.ExcludedFiles)
{
AppendPathOrWildcard(switches, sourceFolder, file);
}
}
if (task.ExcludedFolders.Count > 0)
{
switches.Append(" /xd");
foreach (string folder in task.ExcludedFolders)
{
AppendPathOrWildcard(switches, sourceFolder, folder);
}
}
return(switches.ToString());
}
/// <summary>
/// Gets the name for the scheduled task (to be) associated with the specified mirror task.
/// </summary>
private static string GetName(MirrorTask mirrorTask)
{
return(string.Format("DeeMirror ({0})", mirrorTask.Guid));
}
/// <summary>
/// Recreates a task from the specified XML node.
/// </summary>
public static MirrorTask Deserialize(XElement taskElement)
{
if (taskElement == null)
{
throw new ArgumentNullException("taskElement");
}
var task = new MirrorTask();
task.Guid = taskElement.Attribute("guid").Value;
task.Source = taskElement.Element("source").Value;
var element = taskElement.Element("useVolumeShadowCopy");
if (element != null)
{
task.UseVolumeShadowCopy = bool.Parse(element.Value);
}
element = taskElement.Element("exclusions");
if (element != null)
{
foreach (var file in element.Elements("file"))
{
if (!string.IsNullOrEmpty(file.Value))
{
task.ExcludedFiles.Add(file.Value);
}
}
foreach (var folder in element.Elements("folder"))
{
if (!string.IsNullOrEmpty(folder.Value))
{
task.ExcludedFolders.Add(folder.Value);
}
}
// migrate from DeeMirror format prior to v1.0
foreach (var item in element.Elements("item"))
{
if (string.IsNullOrEmpty(item.Value))
{
continue;
}
if (item.Value[0] == Path.DirectorySeparatorChar &&
Directory.Exists(task.Source + item.Value))
{
task.ExcludedFolders.Add(item.Value);
}
else
{
task.ExcludedFiles.Add(item.Value);
}
}
}
element = taskElement.Element("excludedAttributes");
if (element != null)
{
task.ExcludedAttributes = element.Value;
}
task.Target = taskElement.Element("target").Value;
element = taskElement.Element("extendedAttributes");
if (element != null)
{
task.ExtendedAttributes = element.Value;
}
element = taskElement.Element("overwriteNewerFiles");
if (element != null)
{
task.OverwriteNewerFiles = bool.Parse(element.Value);
}
else // for backwards compatibility:
{
task.OverwriteNewerFiles = true;
}
element = taskElement.Element("deleteExtraItems");
if (element != null)
{
task.DeleteExtraItems = bool.Parse(element.Value);
}
element = taskElement.Element("customRobocopySwitches");
if (element != null)
{
task.CustomRobocopySwitches = element.Value;
}
// for backwards compatibility:
element = taskElement.Element("lastOperation");
if (element == null) // for further backwards compatibility
{
element = taskElement.Element("lastBackup");
}
if (element != null)
{
task.LastOperation = DateTime.ParseExact(element.Value, "u",
System.Globalization.CultureInfo.InvariantCulture).ToLocalTime();
}
return(task);
}