From 3e1d8020123ec07ce74bd4d76915a85632d9e3dc Mon Sep 17 00:00:00 2001
From: Achim Gsell <achim.gsell@psi.ch>
Date: Tue, 7 Jun 2022 17:30:43 +0200
Subject: [PATCH] modubuild: error exit if overlay does not exist

If an overlay is requested in an variants file which does not exist,
print a message and exit with exit code > 0
---
 Pmodules/modbuild.in | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Pmodules/modbuild.in b/Pmodules/modbuild.in
index 2224939..901258c 100755
--- a/Pmodules/modbuild.in
+++ b/Pmodules/modbuild.in
@@ -528,8 +528,11 @@ build_modules_yaml(){
 		local relstage
 		local ol_name
 		for (( i=0; i<n_variants; i++)); do
-			yaml_get_relstage relstage "${fname}" "${v}" $i
 			yaml_get_overlay  ol_name  "${fname}" "${v}" $i
+			if [[ ! -v OverlayInfo[${ol_name}:inst_root] ]]; then
+				std::die 3 "Overlay is not defined -- ${ol_name}"
+			fi
+			yaml_get_relstage relstage "${fname}" "${v}" $i
 			yaml_get_dependencies deps "${fname}" "${v}" $i
 			ol_install_dir="${OverlayInfo[${ol_name}:inst_root]}"
 			ol_dir="${OverlayInfo[${ol_name}:mod_root]}"