private void DoRun(Database.LocalPurgeDatabase db, Library.Utility.IFilter filter, Action <System.Data.IDbCommand, long, string> filtercommand, float pgoffset, float pgspan)
{
m_result.OperationProgressUpdater.UpdatePhase(OperationPhase.PurgeFiles_Begin);
Logging.Log.WriteInformationMessage(LOGTAG, "StartingPurge", "Starting purge operation");
var doCompactStep = !m_options.NoAutoCompact && filtercommand == null;
using (var backend = new BackendManager(m_backendurl, m_options, m_result.BackendWriter, db))
{
if (db.PartiallyRecreated)
{
throw new UserInformationException("The purge command does not work on partially recreated databases", "PurgeNotAllowedOnPartialDatabase");
}
if (db.RepairInProgress && filtercommand == null)
{
throw new UserInformationException(string.Format("The purge command does not work on an incomplete database, try the {0} operation.", "purge-broken-files"), "PurgeNotAllowedOnIncompleteDatabase");
}
var versions = db.GetFilesetIDs(m_options.Time, m_options.Version).OrderByDescending(x => x).ToArray();
if (versions.Length <= 0)
{
throw new UserInformationException("No filesets matched the supplied time or versions", "NoFilesetFoundForTimeOrVersion");
}
var orphans = db.CountOrphanFiles(null);
if (orphans != 0)
{
throw new UserInformationException(string.Format("Unable to start the purge process as there are {0} orphan file(s)", orphans), "CannotPurgeWithOrphans");
}
Utility.UpdateOptionsFromDb(db, m_options);
Utility.VerifyParameters(db, m_options);
if (filtercommand == null)
{
db.VerifyConsistency(m_options.Blocksize, m_options.BlockhashSize, false, null);
if (m_options.NoBackendverification)
{
FilelistProcessor.VerifyLocalList(backend, db);
}
else
{
FilelistProcessor.VerifyRemoteList(backend, m_options, db, m_result.BackendWriter, null);
}
}
var filesets = db.FilesetTimes.OrderByDescending(x => x.Value).ToArray();
var versionprogress = ((doCompactStep ? 0.75f : 1.0f) / versions.Length) * pgspan;
var currentprogress = pgoffset;
var progress = 0;
m_result.OperationProgressUpdater.UpdatePhase(OperationPhase.PurgeFiles_Process);
m_result.OperationProgressUpdater.UpdateProgress(currentprogress);
// Reverse makes sure we re-write the old versions first
foreach (var versionid in versions.Reverse())
{
progress++;
Logging.Log.WriteVerboseMessage(LOGTAG, "ProcessingFilelistVolumes", "Processing filelist volume {0} of {1}", progress, versions.Length);
using (var tr = db.BeginTransaction())
{
var ix = -1;
for (var i = 0; i < filesets.Length; i++)
{
if (filesets[i].Key == versionid)
{
ix = i;
break;
}
}
if (ix < 0)
{
throw new InvalidProgramException(string.Format("Fileset was reported with id {0}, but could not be found?", versionid));
}
var secs = 0;
while (secs < 60)
{
secs++;
var tfn = Volumes.VolumeBase.GenerateFilename(RemoteVolumeType.Files, m_options, null, filesets[ix].Value.AddSeconds(secs));
if (db.GetRemoteVolumeID(tfn, tr) < 0)
{
break;
}
}
var tsOriginal = filesets[ix].Value;
var ts = tsOriginal.AddSeconds(secs);
var prevfilename = db.GetRemoteVolumeNameForFileset(filesets[ix].Key, tr);
if (secs >= 60)
{
throw new Exception(string.Format("Unable to create a new fileset for {0} because the resulting timestamp {1} is more than 60 seconds away", prevfilename, ts));
}
if (ix != 0 && filesets[ix - 1].Value <= ts)
{
throw new Exception(string.Format("Unable to create a new fileset for {0} because the resulting timestamp {1} is larger than the next timestamp {2}", prevfilename, ts, filesets[ix - 1].Value));
}
using (var tempset = db.CreateTemporaryFileset(versionid, tr))
{
if (filtercommand == null)
{
tempset.ApplyFilter(filter);
}
else
{
tempset.ApplyFilter(filtercommand);
}
if (tempset.RemovedFileCount == 0)
{
Logging.Log.WriteInformationMessage(LOGTAG, "NotWritingNewFileset", "Not writing a new fileset for {0} as it was not changed", prevfilename);
currentprogress += versionprogress;
tr.Rollback();
continue;
}
else
{
using (var tf = new Library.Utility.TempFile())
using (var vol = new Volumes.FilesetVolumeWriter(m_options, ts))
{
var isOriginalFilesetFullBackup = db.IsFilesetFullBackup(tsOriginal);
var newids = tempset.ConvertToPermanentFileset(vol.RemoteFilename, ts, isOriginalFilesetFullBackup);
vol.VolumeID = newids.Item1;
vol.CreateFilesetFile(isOriginalFilesetFullBackup);
Logging.Log.WriteInformationMessage(LOGTAG, "ReplacingFileset", "Replacing fileset {0} with {1} which has with {2} fewer file(s) ({3} reduction)", prevfilename, vol.RemoteFilename, tempset.RemovedFileCount, Library.Utility.Utility.FormatSizeString(tempset.RemovedFileSize));
db.WriteFileset(vol, newids.Item2, tr);
m_result.RemovedFileSize += tempset.RemovedFileSize;
m_result.RemovedFileCount += tempset.RemovedFileCount;
m_result.RewrittenFileLists++;
currentprogress += (versionprogress / 2);
m_result.OperationProgressUpdater.UpdateProgress(currentprogress);
if (m_options.Dryrun || m_options.FullResult)
{
foreach (var fe in tempset.ListAllDeletedFiles())
{
var msg = string.Format(" Purging file {0} ({1})", fe.Key, Library.Utility.Utility.FormatSizeString(fe.Value));
Logging.Log.WriteProfilingMessage(LOGTAG, "PurgeFile", msg);
Logging.Log.WriteVerboseMessage(LOGTAG, "PurgeFile", msg);
if (m_options.Dryrun)
{
Logging.Log.WriteDryrunMessage(LOGTAG, "WouldPurgeFile", msg);
}
}
if (m_options.Dryrun)
{
Logging.Log.WriteDryrunMessage(LOGTAG, "WouldWriteRemoteFiles", "Would write files to remote storage");
}
Logging.Log.WriteVerboseMessage(LOGTAG, "WritingRemoteFiles", "Writing files to remote storage");
}
if (m_options.Dryrun)
{
Logging.Log.WriteDryrunMessage(LOGTAG, "WouldUploadAndDelete", "Would upload file {0} ({1}) and delete file {2}, removing {3} files", vol.RemoteFilename, Library.Utility.Utility.FormatSizeString(vol.Filesize), prevfilename, tempset.RemovedFileCount);
tr.Rollback();
}
else
{
var lst = db.DropFilesetsFromTable(new[] { filesets[ix].Value }, tr).ToArray();
foreach (var f in lst)
{
db.UpdateRemoteVolume(f.Key, RemoteVolumeState.Deleting, f.Value, null, tr);
}
tr.Commit();
backend.Put(vol, synchronous: true);
backend.Delete(prevfilename, -1, true);
backend.FlushDbMessages();
}
}
}
}
}
currentprogress += (versionprogress / 2);
m_result.OperationProgressUpdater.UpdateProgress(currentprogress);
}
if (doCompactStep)
{
if (m_result.RewrittenFileLists == 0)
{
Logging.Log.WriteInformationMessage(LOGTAG, "SkippingCompacting", "Skipping compacting as no new volumes were written");
}
else
{
m_result.OperationProgressUpdater.UpdateProgress(pgoffset + (0.75f * pgspan));
m_result.OperationProgressUpdater.UpdatePhase(OperationPhase.PurgeFiles_Compact);
m_result.CompactResults = new CompactResults(m_result);
using (var cdb = new Database.LocalDeleteDatabase(db))
{
var tr = cdb.BeginTransaction();
try
{
new CompactHandler(backend.BackendUrl, m_options, (CompactResults)m_result.CompactResults).DoCompact(cdb, true, ref tr, backend);
}
catch
{
try { tr.Rollback(); }
catch { }
}
finally
{
try { tr.Commit(); }
catch { }
}
}
}
m_result.OperationProgressUpdater.UpdateProgress(pgoffset + pgspan);
m_result.OperationProgressUpdater.UpdatePhase(OperationPhase.PurgeFiles_Complete);
}
backend.WaitForComplete(db, null);
}
}
