/// <summary>
/// Execute this command
/// </summary>
/// <param name="Arguments">Command line arguments</param>
/// <returns>Exit code (always zero)</returns>
public override int Execute(CommandLineArguments Arguments)
{
Arguments.ApplyTo(this);
List <TargetDescriptor> TargetDescriptors = TargetDescriptor.ParseCommandLine(Arguments, false, false);
foreach (TargetDescriptor TargetDescriptor in TargetDescriptors)
{
// Create the target
UEBuildTarget Target = UEBuildTarget.Create(TargetDescriptor, false, false);
// Get the output file
FileReference OutputFile = TargetDescriptor.AdditionalArguments.GetFileReferenceOrDefault("-OutputFile=", null);
if (OutputFile == null)
{
OutputFile = Target.ReceiptFileName.ChangeExtension(".json");
}
// Execute code generation actions
if (bExecCodeGenActions)
{
using (ISourceFileWorkingSet WorkingSet = new EmptySourceFileWorkingSet())
{
// Create the build configuration object, and read the settings
BuildConfiguration BuildConfiguration = new BuildConfiguration();
XmlConfig.ApplyTo(BuildConfiguration);
Arguments.ApplyTo(BuildConfiguration);
// Create the makefile
const bool bIsAssemblingBuild = true;
TargetMakefile Makefile = Target.Build(BuildConfiguration, WorkingSet, bIsAssemblingBuild, TargetDescriptor.SingleFileToCompile);
ActionGraph.Link(Makefile.Actions);
// Filter all the actions to execute
HashSet <FileItem> PrerequisiteItems = new HashSet <FileItem>(Makefile.Actions.SelectMany(x => x.ProducedItems).Where(x => x.HasExtension(".h") || x.HasExtension(".cpp")));
List <Action> PrerequisiteActions = ActionGraph.GatherPrerequisiteActions(Makefile.Actions, PrerequisiteItems);
// Execute these actions
if (PrerequisiteActions.Count > 0)
{
Log.TraceInformation("Exeucting actions that produce source files...");
ActionGraph.ExecuteActions(BuildConfiguration, PrerequisiteActions);
}
}
}
// Write the output file
Log.TraceInformation("Writing {0}...", OutputFile);
Target.ExportJson(OutputFile);
}
return(0);
}