private Guid WriteOrUseUuidIfSupported(IFileSystemInfo localFile)
{
Guid uuid = Guid.Empty;
if (localFile.IsExtendedAttributeAvailable())
{
try {
string ea = localFile.GetExtendedAttribute(MappedObject.ExtendedAttributeKey);
if (ea == null || !Guid.TryParse(ea, out uuid) || this.Storage.GetObjectByGuid(uuid) != null)
{
uuid = Guid.NewGuid();
localFile.SetExtendedAttribute(MappedObject.ExtendedAttributeKey, uuid.ToString(), true);
}
} catch (ExtendedAttributeException ex) {
throw new RetryException(ex.Message, ex);
}
}
return(uuid);
}
private bool DeleteLocalObjectIfHasBeenSyncedBefore(IMetaDataStorage storage, IFileSystemInfo fsInfo)
{
bool delete = true;
string reason;
Guid uuid;
IMappedObject obj = null;
if (Guid.TryParse(fsInfo.GetExtendedAttribute(MappedObject.ExtendedAttributeKey), out uuid))
{
obj = storage.GetObjectByGuid(uuid);
}
else
{
obj = storage.GetObjectByLocalPath(fsInfo);
}
if (fsInfo is IFileInfo)
{
if (obj != null && fsInfo.LastWriteTimeUtc.Equals(obj.LastLocalWriteTimeUtc))
{
(fsInfo as IFileInfo).Delete();
OperationsLogger.Info(string.Format("Deleted local file {0} because the mapped remote object {0} has been deleted", fsInfo.FullName, obj.RemoteObjectId));
}
else
{
fsInfo.SetExtendedAttribute(MappedObject.ExtendedAttributeKey, null, true);
return(false);
}
}
else if (fsInfo is IDirectoryInfo)
{
var dir = fsInfo as IDirectoryInfo;
if (!this.filters.FolderNamesFilter.CheckFolderName(dir.Name, out reason))
{
foreach (var folder in dir.GetDirectories())
{
if (!this.DeleteLocalObjectIfHasBeenSyncedBefore(storage, folder))
{
delete = false;
}
}
foreach (var file in dir.GetFiles())
{
if (!this.filters.FileNamesFilter.CheckFile(file.Name, out reason))
{
if (!this.DeleteLocalObjectIfHasBeenSyncedBefore(storage, file))
{
delete = false;
}
}
else
{
file.Delete();
OperationsLogger.Info(string.Format("Deleted local ignored file {0} because the mapped remote parent object {0} has been deleted", fsInfo.FullName, obj.RemoteObjectId));
}
}
if (delete)
{
try {
(fsInfo as IDirectoryInfo).Delete(false);
OperationsLogger.Info(string.Format("Deleted local folder {0} because the mapped remote folder has been deleted", fsInfo.FullName));
} catch (IOException) {
fsInfo.SetExtendedAttribute(MappedObject.ExtendedAttributeKey, null, true);
return(false);
}
}
else
{
fsInfo.SetExtendedAttribute(MappedObject.ExtendedAttributeKey, null, true);
}
}
else
{
try {
(fsInfo as IDirectoryInfo).Delete(true);
OperationsLogger.Info(string.Format("Deleted locally ignored folder {0} because the parent mapped remote folder has been deleted", fsInfo.FullName));
} catch (IOException e) {
OperationsLogger.Info(string.Format("Deletion of locally ignored folder {0} failed", fsInfo.FullName), e);
return(false);
}
}
}
return(delete);
}