private int CheckPrerequisitesForSmbBackup(string pstFileToSave) { FileInfo backupFile; FileInfo sourceFile = new FileInfo(pstFileToSave); int fileId = 0; if (_clientDb.IsPstFileRegistered(pstFileToSave)) { // PST file is already known in the database fileId = _clientDb.GetFileID(pstFileToSave); backupFile = new FileInfo(_clientDb.GetBackupFilePath(pstFileToSave).ToLower()); if (String.Compare(backupFile.DirectoryName, FileSystem.ExpandDestinationFolder(AppSettings.FilesAndFoldersDestinationPath), true) != 0) { // Destination have change backupFile = new FileInfo(Path.Combine(FileSystem.ExpandDestinationFolder(AppSettings.FilesAndFoldersDestinationPath), backupFile.Name)); _clientDb.RenameBackupFile(pstFileToSave, backupFile.FullName); _clientDb.DeleteHashes(fileId, 0); } if (backupFile.Name.EndsWith(".pst")) { // Backup File is PST _clientDb.RenameBackupFile(pstFileToSave, backupFile.FullName + ".partial"); if (backupFile.Exists) { // Backup.pst exists File.Move(backupFile.FullName, backupFile.FullName + ".partial"); } else { // Backup.pst does not exists _clientDb.DeleteHashes(fileId, 0); } } else { // Backup File is Partial if (!backupFile.Exists) { // BackupFile.pst.partial does not exists _clientDb.DeleteHashes(fileId, 0); } } } else { // PST file is not in the database fileId = _clientDb.GetAvailableFileId(); backupFile = new FileInfo(Path.Combine(FileSystem.ExpandDestinationFolder(AppSettings.FilesAndFoldersDestinationPath), sourceFile.Name + ".partial")); _clientDb.RegisterNewPstFile(fileId, pstFileToSave, backupFile.FullName); if (backupFile.Exists) { // backup.pst.partial already exists backupFile.Delete(); } } // Create or Resize backupFile = new FileInfo(Path.Combine(FileSystem.ExpandDestinationFolder(AppSettings.FilesAndFoldersDestinationPath), sourceFile.Name + ".partial")); if (FileSystem.ResizeFile(backupFile.FullName, sourceFile.Length) == -1) { // backup file have been shrinked, shrink Hashes table _clientDb.ShrinkChunkList(fileId, sourceFile.Length, _chunkSize); } return(fileId); }