From 27e8db638d9b28fbbad86d8180042670929ebb5d Mon Sep 17 00:00:00 2001
From: Christopher Jones <chrisdjones15@gmail.com>
Date: Tue, 25 Apr 2023 15:02:30 -0500
Subject: [PATCH] Add option to control printing of Pythia banner

---
 .../Pythia8Interface/src/Py8InterfaceBase.cc           | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/GeneratorInterface/Pythia8Interface/src/Py8InterfaceBase.cc b/GeneratorInterface/Pythia8Interface/src/Py8InterfaceBase.cc
index da9708c4fb253..35a271c548e7b 100644
--- a/GeneratorInterface/Pythia8Interface/src/Py8InterfaceBase.cc
+++ b/GeneratorInterface/Pythia8Interface/src/Py8InterfaceBase.cc
@@ -70,9 +70,15 @@ namespace gen {
   }
 
   bool Py8InterfaceBase::readSettings(int) {
+    //Pythia 8's default value for first argument to constructor
+    const string xmlDir = "../share/Pythia8/xmldoc";
+    bool printBanner = true;
+    if (fParameters.exists("printBanner")) {
+      printBanner = fParameters.getUntrackedParameter<bool>("printBanner");
+    }
     if (!fMasterGen.get())
-      fMasterGen = std::make_unique<Pythia>();
-    fDecayer = std::make_unique<Pythia>();
+      fMasterGen = std::make_unique<Pythia>(xmlDir, printBanner);
+    fDecayer = std::make_unique<Pythia>(xmlDir, printBanner);
 
     //add settings for resonance decay filter
     fMasterGen->settings.addFlag("BiasedTauDecayer:filter", false);