void FAssetFixUpRedirectors::DeleteRedirectors(TArray<FRedirectorRefs>& RedirectorsToFix) const
{
TArray<UObject*> ObjectsToDelete;
for ( auto RedirectorIt = RedirectorsToFix.CreateIterator(); RedirectorIt; ++RedirectorIt )
{
FRedirectorRefs& RedirectorRefs = *RedirectorIt;
if ( RedirectorRefs.bRedirectorValidForFixup )
{
// Add all redirectors found in this package to the redirectors to delete list.
// All redirectors in this package should be fixed up.
UPackage* RedirectorPackage = RedirectorRefs.Redirector->GetOutermost();
TArray<UObject*> AssetsInRedirectorPackage;
GetObjectsWithOuter(RedirectorPackage, AssetsInRedirectorPackage, /*bIncludeNestedObjects=*/false);
UMetaData* PackageMetaData = NULL;
bool bContainsAtLeastOneOtherAsset = false;
for ( auto ObjIt = AssetsInRedirectorPackage.CreateConstIterator(); ObjIt; ++ObjIt )
{
if ( UObjectRedirector* Redirector = Cast<UObjectRedirector>(*ObjIt) )
{
Redirector->RemoveFromRoot();
ObjectsToDelete.Add(Redirector);
}
else if ( UMetaData* MetaData = Cast<UMetaData>(*ObjIt) )
{
PackageMetaData = MetaData;
}
else
{
bContainsAtLeastOneOtherAsset = true;
}
}
if ( !bContainsAtLeastOneOtherAsset )
{
RedirectorPackage->RemoveFromRoot();
ULinkerLoad* Linker = ULinkerLoad::FindExistingLinkerForPackage(RedirectorPackage);
if ( Linker )
{
Linker->RemoveFromRoot();
}
// @todo we shouldnt be worrying about metadata objects here, ObjectTools::CleanUpAfterSuccessfulDelete should
if ( PackageMetaData )
{
PackageMetaData->RemoveFromRoot();
ObjectsToDelete.Add(PackageMetaData);
}
}
// This redirector will be deleted, NULL the reference here
RedirectorRefs.Redirector = NULL;
}
}
if ( ObjectsToDelete.Num() > 0 )
{
ObjectTools::DeleteObjects(ObjectsToDelete);
}
}
void FAssetDeleteModel::PrepareToDelete(UObject* InObject)
{
if ( InObject->IsA<UObjectRedirector>() )
{
// Add all redirectors found in this package to the redirectors to delete list.
// All redirectors in this package should be fixed up.
UPackage* RedirectorPackage = InObject->GetOutermost();
TArray<UObject*> AssetsInRedirectorPackage;
GetObjectsWithOuter(RedirectorPackage, AssetsInRedirectorPackage, /*bIncludeNestedObjects=*/false);
UMetaData* PackageMetaData = NULL;
bool bContainsAtLeastOneOtherAsset = false;
for ( auto ObjIt = AssetsInRedirectorPackage.CreateConstIterator(); ObjIt; ++ObjIt )
{
if ( UObjectRedirector* Redirector = Cast<UObjectRedirector>(*ObjIt) )
{
Redirector->RemoveFromRoot();
}
else if ( UMetaData* MetaData = Cast<UMetaData>(*ObjIt) )
{
PackageMetaData = MetaData;
}
else
{
bContainsAtLeastOneOtherAsset = true;
}
}
if ( !bContainsAtLeastOneOtherAsset )
{
RedirectorPackage->RemoveFromRoot();
ULinkerLoad* Linker = ULinkerLoad::FindExistingLinkerForPackage(RedirectorPackage);
if ( Linker )
{
Linker->RemoveFromRoot();
}
// @todo we shouldnt be worrying about metadata objects here, ObjectTools::CleanUpAfterSuccessfulDelete should
if ( PackageMetaData )
{
PackageMetaData->RemoveFromRoot();
PendingDeletes.AddUnique(MakeShareable(new FPendingDelete(PackageMetaData)));
}
}
}
}
void FAssetFixUpRedirectors::DeleteRedirectors(TArray<FRedirectorRefs>& RedirectorsToFix, const TArray<UPackage*>& FailedToSave) const
{
TArray<UObject*> ObjectsToDelete;
for ( auto RedirectorIt = RedirectorsToFix.CreateIterator(); RedirectorIt; ++RedirectorIt )
{
FRedirectorRefs& RedirectorRefs = *RedirectorIt;
if ( RedirectorRefs.bRedirectorValidForFixup )
{
bool bAllReferencersFixedUp = true;
for (const auto& ReferencingPackageName : RedirectorRefs.ReferencingPackageNames)
{
if (FailedToSave.ContainsByPredicate([&](UPackage* Package) { return Package->GetFName() == ReferencingPackageName; }))
{
bAllReferencersFixedUp = false;
break;
}
}
if (!bAllReferencersFixedUp)
{
continue;
}
// Add all redirectors found in this package to the redirectors to delete list.
// All redirectors in this package should be fixed up.
UPackage* RedirectorPackage = RedirectorRefs.Redirector->GetOutermost();
TArray<UObject*> AssetsInRedirectorPackage;
GetObjectsWithOuter(RedirectorPackage, AssetsInRedirectorPackage, /*bIncludeNestedObjects=*/false);
UMetaData* PackageMetaData = NULL;
bool bContainsAtLeastOneOtherAsset = false;
for ( auto ObjIt = AssetsInRedirectorPackage.CreateConstIterator(); ObjIt; ++ObjIt )
{
if ( UObjectRedirector* Redirector = Cast<UObjectRedirector>(*ObjIt) )
{
Redirector->RemoveFromRoot();
ObjectsToDelete.Add(Redirector);
}
else if ( UMetaData* MetaData = Cast<UMetaData>(*ObjIt) )
{
PackageMetaData = MetaData;
}
else
{
bContainsAtLeastOneOtherAsset = true;
}
}
if ( !bContainsAtLeastOneOtherAsset )
{
RedirectorPackage->RemoveFromRoot();
// @todo we shouldnt be worrying about metadata objects here, ObjectTools::CleanUpAfterSuccessfulDelete should
if ( PackageMetaData )
{
PackageMetaData->RemoveFromRoot();
ObjectsToDelete.Add(PackageMetaData);
}
}
// This redirector will be deleted, NULL the reference here
RedirectorRefs.Redirector = NULL;
}
}
if ( ObjectsToDelete.Num() > 0 )
{
ObjectTools::DeleteObjects(ObjectsToDelete, false);
}
}