UE 编辑器资产保存：签出、脏标记与保存结果

资产保存

简介

自定义资产的自动保存

在保存前回把只读文件的只读状态取消，针对Perforce设计，防止资产因不能写入而崩溃

实现

UFUNCTION(BlueprintCallable)  
static bool SaveLoadedAsset(UObject* AssetObject, FString AssetPath);

bool UMyBlueprintFunctionLibrary::SaveLoadedAsset(UObject* AssetObject, FString AssetPath)
{
	if(!AssetObject || AssetPath.IsEmpty())return false;
	UPackage* Package = AssetObject->GetPackage();
	if(!Package)
	{
		Package = CreatePackage(*AssetPath);	
	}
	
	if(Package)
	{
		Package->FullyLoad();
		Package->SetDirtyFlag(true);
		FAssetRegistryModule::AssetCreated(AssetObject);
		const FString PackageFileName = FPackageName::LongPackageNameToFilename(Package->GetPathName(), FPackageName::GetAssetPackageExtension());
		IPlatformFile& PlatformFile = FPlatformFileManager::Get().GetPlatformFile();
		PlatformFile.SetReadOnly(*PackageFileName, false);
		FSavePackageArgs SavePackageArgs;
		return UPackage::SavePackage(Package, AssetObject, *PackageFileName, SavePackageArgs);
	}
	
	return false;
}