public HashPack(LocalFile file, string path, uint project, string dir)
{
File = file;
Path = path;
Project = project;
Dir = dir;
}
public void MergeFile(LocalFile file)
{
// if there are any unique files in the merge that don't exist locally, add them
file.Archived.LockReading(delegate()
{
foreach (StorageFile merge in file.Archived)
{
// check if exists
bool fileExists = false;
Archived.LockReading(delegate()
{
foreach (StorageFile item in Archived)
if (Utilities.MemCompare(item.InternalHash, merge.InternalHash))
{
fileExists = true;
break;
}
});
// add file if doesnt exist
if (!fileExists)
{
bool added = false;
LinkedListNode<StorageItem> item = null;
Archived.LockReading(delegate()
{
for (item = Archived.First; item != null; item = item.Next)
if (item.Value.Date > merge.Date) // loop until item is no longer the lowest (oldest)
{
added = true;
break;
}
});
if (added && item != null)
{
if (item.Value == Info)
Archived.SafeAddAfter(item, merge); // even if newest, the file being moved is the one at top
else
Archived.SafeAddBefore(item, merge); // put file in right spot
}
else
Archived.SafeAddLast(merge); // oldest, at end
}
}
});
}
public void ReadyChange(LocalFile file, StorageFile newInfo)
{
Modified = true;
PeriodicSave = true;
file.Modify(Core.TimeNow, newInfo);
}
public void ReadyChange(LocalFile file)
{
Modified = true;
PeriodicSave = true;
file.Modify(Core.TimeNow, file.Info.Clone());
}
public void MoveFile(string sourcePath, string destPath, List<string> errors)
{
// get source folder
string name = Path.GetFileName(sourcePath);
sourcePath = Utilities.StripOneLevel(sourcePath);
LocalFolder sourceFolder = GetLocalFolder(sourcePath);
LocalFolder destFolder = GetLocalFolder(destPath);
if (sourceFolder == null || destFolder == null || sourceFolder == destFolder)
return;
// get source file
LocalFile sourceFile = sourceFolder.GetFile(name);
if (sourceFile == null)
return;
// if name exists with diff uid, return error
bool exists = false;
destFolder.Files.LockReading(delegate()
{
foreach (LocalFile check in destFolder.Files.Values)
if (check.Info.UID != sourceFile.Info.UID &&
String.Compare(check.Info.Name, sourceFile.Info.Name, true) == 0)
{
errors.Add("File with same name exists at " + destPath);
exists = true;
}
});
if (exists)
return;
// if uid exists in destination, merge histories with diff hashes
WorkingChange destChange = WorkingChange.Created;
WorkingChange sourceChange = WorkingChange.Updated;
LocalFile mergeFile = null;
if (destFolder.Files.SafeTryGetValue(sourceFile.Info.UID, out mergeFile))
{
sourceFile.MergeFile(mergeFile);
destFolder.Files.SafeAdd(sourceFile.Info.UID, sourceFile);
destChange = WorkingChange.Updated;
}
else
destFolder.AddFile(sourceFile);
// make note file was moved at source in destination
LocalFile ghost = new LocalFile(sourceFile.Info.Clone()); // do before modified/new date set
ReadyChange(sourceFile);
sourceFile.Info.Note = "Moved from " + (sourcePath == "" ? Path.DirectorySeparatorChar.ToString() : sourcePath);
sourceFolder.Files.SafeRemove(sourceFile.Info.UID);
// only leave a ghost if this file has a committed history
if (sourceFile.Archived.SafeCount > 1 || !sourceFile.Info.IsFlagged(StorageFlags.Modified))
{
ghost.Archived.SafeAddFirst(ghost.Info);
sourceFolder.AddFile(ghost);
ReadyChange(ghost);
ghost.Info.Note = "Moved to " + (destPath == "" ? Path.DirectorySeparatorChar.ToString() : destPath);
ghost.Info.SetFlag(StorageFlags.Archived);
}
else
sourceChange = WorkingChange.Removed;
// move actual file if unlocked on disk, create new folder if need be
if (File.Exists(RootPath + sourcePath + Path.DirectorySeparatorChar + name))
{
Directory.CreateDirectory(RootPath + destPath);
// exceptions handled by caller
File.Move( RootPath + sourcePath + Path.DirectorySeparatorChar + name,
RootPath + destPath + Path.DirectorySeparatorChar + name);
}
// file created at destination, updated at source
Storages.CallFileUpdate(ProjectID, destPath, sourceFile.Info.UID, destChange);
Storages.CallFileUpdate(ProjectID, sourcePath, sourceFile.Info.UID, sourceChange);
}
void ReplaceFile(LocalFile file, StorageFile replacement, string dir, bool setModified, List<LockError> errors)
{
// this will lock file if it is unlocked
bool unlocked = Storages.IsFileUnlocked(Core.UserID, ProjectID, dir, file.Info, false);
Storages.LockFile(Core.UserID, ProjectID, dir, file.Info, false);
if (setModified)
ReadyChange(file, replacement);
else
{
file.Info = replacement;
file.Archived.SafeAddFirst(replacement);
}
if (unlocked)
Storages.UnlockFile(Core.UserID, ProjectID, dir, file.Info, false, errors);
}
public LocalFile AddFileInfo(StorageFile info)
{
LocalFile file = null;
if (!Files.SafeTryGetValue(info.UID, out file))
{
file = new LocalFile(info);
Files.SafeAdd(info.UID, file);
}
if(info.IntegratedID != 0)
file.Integrated.SafeAdd(info.IntegratedID, info);
else
file.Archived.SafeAddLast(info);
return file;
}
private LocalFile CreateNewFile(string name)
{
StorageFile info = new StorageFile();
LocalFile file = new LocalFile(info);
info.UID = Utilities.StrongRandUInt64(Core.StrongRndGen);
info.Name = name;
info.Date = Core.TimeNow.ToUniversalTime();
info.Revs = 5;
file.Archived.SafeAddFirst(info);
return file;
}
public void AddFile(LocalFile file)
{
ulong uid = file.Info.UID;
Debug.Assert(!Files.SafeContainsKey(uid));
Files.SafeAdd(uid, file);
}
private bool AutoIntegrate(LocalFile file, string dir, List<LockError> errors)
{
// If file/folder not flagged as modified
if(file.Info.IsFlagged(StorageFlags.Modified))
return false;
StorageFile latestFile = file.Info;
List<StorageFile> inheritIntegrated = new List<StorageFile>();
ulong directHigher = (InheritIDs.Count >= 2) ? InheritIDs[1] : 0;
// this process will find higher has integrated my file
// and highest has integrated his file, and return latest
// from self to highest
foreach (ulong id in InheritIDs)
if (file.HigherChanges.ContainsKey(id))
// higherChanges consists of files that are newer than local
foreach (StorageFile changeFile in file.HigherChanges[id])
{
if (changeFile.Date >= latestFile.Date && Storages.ItemDiff(latestFile, changeFile) == StorageActions.None)
{
latestFile = (StorageFile)file.HigherChanges[id][0]; // first element is newest file
if (id != directHigher)
break;
}
if (id == directHigher &&
changeFile.IntegratedID != 0 &&
Core.Trust.IsAdjacent(changeFile.IntegratedID, ProjectID))
inheritIntegrated.Add(changeFile);
}
// if current file/folder is not our own (itemdiff)
bool save = false;
if (Storages.ItemDiff(latestFile, file.Info) != StorageActions.None)
{
ReplaceFile(file, latestFile, dir , false, errors);
save = true;
}
// merges integration list for nodes adjacent to ourselves
// works even if higher integrates more files, but doesn't necessarily change the file's hash
StorageItem prevIntegrated = null;
foreach (StorageFile inherited in inheritIntegrated)
{
file.Integrated.SafeTryGetValue(inherited.IntegratedID, out prevIntegrated);
if (prevIntegrated == null || inherited.Date > prevIntegrated.Date)
{
file.Integrated.SafeAdd(inherited.IntegratedID, inherited);
save = true;
}
}
return save;
}
public void TrackFile(string path, StorageFile track)
{
LocalFolder folder = GetLocalFolder(path);
if (folder == null)
return;
// increase references
OpFile commonFile = null;
if (Storages.FileMap.SafeTryGetValue(track.HashID, out commonFile))
commonFile.References++;
LocalFile file = new LocalFile(track);
file.Info.SetFlag(StorageFlags.Modified);
file.Archived.SafeAddFirst(track);
folder.AddFile(file);
Modified = true;
PeriodicSave = true;
Storages.CallFileUpdate(ProjectID, folder.GetPath(), file.Info.UID, WorkingChange.Created);
}
public void MarkforHash(LocalFile file, string path, uint project, string dir)
{
HashPack pack = new HashPack(file, path, project, dir);
lock (HashFiles.Pending)
if (HashFiles.Pending.Any(p => ((HashPack)p.Param2).File == file))
return;
file.Info.Size = new FileInfo(path).Length; // set so we can get hash status
HashFiles.Enqueue(() => HashFile(pack), pack);
}
