Manual sweep of !57892 from 22.0 to master: Fixes for CA-based configuration of Monopole simulation jobs

Fixes for CA-based configuration of Monopole simulation jobs

See merge request !57892 (merged)

Tagging @wlampl

Simulation/G4Extensions/ExtraParticles/python/PDGHelpers.py

@@ -58,9 +58,11 @@ def updateExtraParticleWhiteList(listName='G4particle_whitelist_ExtraParticles.t
     if getExtraParticleWhiteList(listName):
         import shutil
         shutil.copy(listName, listName+'.org')
+    existingpdgcodes = [int(x) for x in open(listName).readlines()]
+    newpdgcodes = list(set(pdgcodes).difference(existingpdgcodes))
     # update the whitelist for GenParticleSimWhiteList
     with open(listName, 'a') as writer:
-        for pdg in pdgcodes:
+        for pdg in newpdgcodes:
             writer.write('%s\n' % pdg)