Synnefo » Pithos MS Client

            //Check the Modified date to ensure that were just created and haven't been uploaded yet

            //NOTE: The NHibernate LINQ provider doesn't support custom functions so we need to break the query 

            //in two steps

            //NOTE: DON'T return files that are already in conflict. The first poll would mark them as 

            //"In Conflict" but subsequent polls would delete them

            var deleteCandidates = (from state in FileState.Queryable

                                   where 

                                        state.Modified <= pollTime 

                                        && state.FilePath.StartsWith(accountInfo.AccountPath)

                                        && state.FileStatus != FileStatus.Conflict

                                   select state).ToList();

            var filesToDelete = (from deleteCandidate in deleteCandidates 

                         let localFile = FileInfoExtensions.FromPath(deleteCandidate.FilePath) 

                         let relativeFilePath = localFile.AsRelativeTo(accountInfo.AccountPath) 

                         where !cloudFiles.Any(r => Path.Combine(r.Container, r.Name) == relativeFilePath) 

                         select localFile).ToList();

            //On the first run

            if (_firstPoll)

                //Set the status of missing files to Conflict

                foreach (var item in filesToDelete)

                    StatusKeeper.SetFileState(item.FullName, FileStatus.Conflict, FileOverlayStatus.Deleted);

                StatusNotification.NotifyConflicts(filesToDelete, String.Format("{0} local files are missing from Pithos, possibly because they were deleted",filesToDelete.Count));

            else

            {

                foreach (var item in filesToDelete)

                {

                    item.Delete();

                    StatusKeeper.ClearFileStatus(item.FullName);

                }

                StatusNotification.NotifyForFiles(filesToDelete, String.Format("{0} files were deleted",filesToDelete.Count),TraceLevel.Info);

            }