From 094aa6cee2c0a38b7db4a9dc0b95f4759f6a1981 Mon Sep 17 00:00:00 2001
From: Wouter Deconinck <wdconinc@gmail.com>
Date: Thu, 14 Sep 2023 12:16:22 -0500
Subject: [PATCH] fix: allow for uid without username

Since 1.26 (ab9a96e66ac1df6a7b3989b082c043932b77dd33) we are seeing `ddsim` exceptions on certain Open Science Grid nodes/sites. Those sites appear to configure the running of singularity containers in such a way that no usernames are associated with the uid.
---
 DDG4/python/DDSim/Helper/Meta.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/DDG4/python/DDSim/Helper/Meta.py b/DDG4/python/DDSim/Helper/Meta.py
index 7b1e2f2e9..45b406da8 100644
--- a/DDG4/python/DDSim/Helper/Meta.py
+++ b/DDG4/python/DDSim/Helper/Meta.py
@@ -100,6 +100,9 @@ def addParametersToRunHeader(sim):
 
     # add User
     import getpass
-    runHeader["User"] = getpass.getuser()
+    try:
+        runHeader["User"] = getpass.getuser()
+    except KeyError:
+        runHeader["User"] = str(os.getuid())
 
     return runHeader