private bool FileRequiresBackup(BackupFile backupFile)
{
if (backupFile.LastModified.CompareTo(LongFile.GetLastWriteTime(Path)) != 0)
{
return(true);
}
if (backupFile.Size != LongFile.GetFileSize(Path))
{
return(true);
}
if (!LongFile.Exists(GetBackupLocation()))
{
return(true);
}
return(false);
}
public void Backup()
{
bool backupRequired = false;
try
{
DateTime currentFileTimestamp = LongFile.GetLastWriteTime(Path).ToLocalTime();
BackupFile backupFile = BackupDbContext.DB.BackupFiles
.Where(f => f.Path == Path)
.OrderByDescending(f => f.BackupTimestamp)
.FirstOrDefault(f => true);
if (backupFile == null)
{
backupRequired = true;
}
else if (backupFile.LastModified.CompareTo(currentFileTimestamp) != 0)
{
backupRequired = true;
}
else if (backupFile.Size != LongFile.GetFileSize(Path))
{
backupRequired = true;
}
if (backupRequired)
{
backupFile = new BackupFile
{
Path = Path,
BackupFileType = BackupFileType.File,
LastModified = currentFileTimestamp,
Size = LongFile.GetFileSize(Path),
BackupTimestamp = DateTime.Now,
BackupLocation = GetBackupLocation(),
Parent = LongFile.GetParent(Path),
Name = LongFile.GetName(Path),
};
string destPath = LongFile.Combine(BackupDbContext.Destination, LongFile.Combine("Files", backupFile.BackupLocation));
string destFolder = LongFile.GetParent(destPath);
if (!LongDirectory.Exists(destFolder))
{
LongDirectory.CreateDirectory(destFolder);
}
LongFile.Copy(Path, destPath, true);
LongFile.SetAttributes(destPath, LongFile.GetAttributes(destPath) & ~System.IO.FileAttributes.ReadOnly & ~System.IO.FileAttributes.Hidden);
BackupDbContext.DB.BackupFiles.Add(backupFile);
BackupDbContext.DB.SaveChanges();
if (FileBackupFinished != null)
{
FileBackupFinished(this, new FileEventArgs()
{
Path = Path, Cancelled = false, Success = true
});
}
}
}
catch (Exception ex)
{
}
}