From d3354604b6d43bedc309be350e66a569bbb02bb7 Mon Sep 17 00:00:00 2001
From: "Eric T. Johnson" <eric.t.johnson@stonybrook.edu>
Date: Tue, 10 Sep 2024 15:19:19 -0400
Subject: [PATCH] Don't fail if $SCRATCH isn't set

---
 job_scripts/slurm/chainslurm-menu.sh | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/job_scripts/slurm/chainslurm-menu.sh b/job_scripts/slurm/chainslurm-menu.sh
index 5e0129d..853f64a 100755
--- a/job_scripts/slurm/chainslurm-menu.sh
+++ b/job_scripts/slurm/chainslurm-menu.sh
@@ -73,9 +73,13 @@ if [[ "$oldjob" -gt 0 ]]; then
   old_dir=$(readlink -f "$old_dir")
   new_dir=$(readlink -f "$PWD")
   if [[ "$old_dir" != "$new_dir" ]]; then
-    old_pretty="${old_dir/$SCRATCH/\$SCRATCH}"
+    old_pretty=$old_dir
+    new_pretty=$new_dir
+    if [[ -n ${SCRATCH+x} ]]; then
+      old_pretty="${old_pretty/$SCRATCH/\$SCRATCH}"
+      new_pretty="${new_pretty/$SCRATCH/\$SCRATCH}"
+    fi
     old_pretty="${old_pretty/$HOME/\~}"
-    new_pretty="${new_dir/$SCRATCH/\$SCRATCH}"
     new_pretty="${new_pretty/$HOME/\~}"
     echo "Error: selected job was submitted from ${old_pretty}, but you are currently in ${new_pretty}"
     exit 2