static void Main(string[] args)
{
XmlConfigurator.Configure();
log.Info("Start");
BackupConfig config = BackupConfig.GetConfig();
S3Interface.Setup(config.AccessKey, config.SecretKey, config.Bucket);
var files = new List <UploadSet>();
foreach (DatabaseBackup database in config.Databases)
{
var backup = new BackupDatabase
{
ServerName = database.Server,
DatabaseName = database.Name,
FullKeyPrefix = config.FullKeyPrefix(database.KeyPrefix),
FullBackupFrequency = database.FullBackupFrequency
};
files.Add(new UploadSet(backup.MakeBackupFile(), database.KeyPrefix, database.Lifetime, true));
}
foreach (DirectoryBackup directory in config.Directories)
{
var archiveFiles = new ArchiveFiles
{
LocalDirectory = directory.Path,
FullKeyPrefix = config.FullKeyPrefix(directory.KeyPrefix),
BackupLifetime = directory.Lifetime
};
files.Add(new UploadSet(archiveFiles.GetFilesToUpload(), directory.KeyPrefix, directory.Lifetime, false));
}
var upload = new Upload
{
AWSBucket = config.Bucket,
AWSAccessKey = config.AccessKey,
AWSSecretKey = config.SecretKey,
KeyPrefix = config.KeyPrefix
};
if (config.NoUpload == false)
{
upload.TransferFiles(files);
}
else
{
log.Info("UPLOAD DISABLED");
}
log.Info("End");
}
// Checks the metadata of the last $FullBackupFrequency backsup, if none were a
// full backup then we need to do one.
private bool NeedIncrementalBackup()
{
var s3Interface = new S3Interface();
List <S3Object> s3Objects = s3Interface.ObjectsFromKey(FullKeyPrefix);
int allowedDifferentials = Math.Max(FullBackupFrequency - 1, 0);
s3Objects.Sort((a, b) => a.LastModified.CompareTo(b.LastModified));
if (s3Objects.Count > allowedDifferentials)
{
s3Objects = s3Objects.GetRange(s3Objects.Count - allowedDifferentials, allowedDifferentials);
}
List <NameValueCollection> metadata = s3Interface.GetObjectMetadata(s3Objects);
bool recentFullBackup = metadata.Exists(md => md.Get("x-amz-meta-backuptype") == "Full");
return(recentFullBackup);
}
public List <UploadItem> GetFilesToUpload()
{
var uploads = new List <UploadItem>();
try
{
log.InfoFormat("Start GetFilesToUpload for {0}", LocalDirectory);
var s3Objects = new S3Interface().ObjectsFromKey(FullKeyPrefix);
var localPaths = Directory.GetFiles(LocalDirectory);
// Make Dictionaries with the file name and mod date for the local and remote lists
var remotes = s3Objects.ToDictionary(o => o.Key.Substring(FullKeyPrefix.Length), o => o.LastModified);
var locals = localPaths.ToDictionary(p => Path.GetFileName(p), p => File.GetLastWriteTimeUtc(p));
locals.ForEach(f => log.DebugFormat("Local , {0} : {1}", f.Key, f.Value));
remotes.ForEach(f => log.DebugFormat("Remote, {0} : {1}", f.Key, f.Value));
var startDate = BackupLifetime == int.MaxValue ? DateTime.MinValue : DateTime.Now.AddDays(-BackupLifetime);
// Make list of file names that only local or newer on local
var newNames = locals.Where(l => // Upload file when:-
(!remotes.ContainsKey(l.Key) && l.Value > startDate) || // File not on remote and not old enough to be purged
(remotes.ContainsKey(l.Key) && l.Value > remotes[l.Key])). // File on remote but newer version on local
Select(p => p.Key).ToList(); // convert to list of file names
uploads = newNames.ConvertAll(fn => new UploadItem
{
FilePath = Path.Combine(LocalDirectory, fn),
Metadata = new NameValueCollection()
});
}
catch (Exception e)
{
log.Error("GetFilesToUpload error", e);
}
log.InfoFormat("End GetFilesToUpload found {0}", uploads.Count);
return(uploads);
}
