From 38b265af02185ab317aaa11bf7445c91d81ba8a5 Mon Sep 17 00:00:00 2001
From: Achim Gsell <achim.gsell@psi.ch>
Date: Thu, 9 Jun 2022 14:36:47 +0200
Subject: [PATCH] modulecmd: bugfix if MODULEPATH starts or ends with a colon

---
 Pmodules/modulecmd.bash.in | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Pmodules/modulecmd.bash.in b/Pmodules/modulecmd.bash.in
index 55532a3..5eb3cb1 100644
--- a/Pmodules/modulecmd.bash.in
+++ b/Pmodules/modulecmd.bash.in
@@ -715,6 +715,9 @@ subcommand_load() {
 	LOADEDMODULES="${_LMFILES_}"
         local dir
 	while read dir; do
+		# if the first or last character of MODULEPATH is ':',
+		# we read an empty string.
+		[[ -z ${dir} ]] && continue
 		[[ "${dir: -1}" == "/" ]] || dir+="/"
 		LOADEDMODULES="${LOADEDMODULES//${dir}}"
 		map_moduledir2ol_name overlay "${dir}"