From 8373ad65f7a25d54f4a5df1d16dce4ce50518cba Mon Sep 17 00:00:00 2001
From: Ralph Lange <ralph.lange@gmx.de>
Date: Thu, 21 Nov 2019 10:25:35 +0100
Subject: [PATCH] Make source_set() detect empty setup search path; add test

---
 travis-test.sh  | 1 +
 travis/utils.sh | 5 +++++
 2 files changed, 6 insertions(+)

diff --git a/travis-test.sh b/travis-test.sh
index 054a283..cdbe4d1 100755
--- a/travis-test.sh
+++ b/travis-test.sh
@@ -50,6 +50,7 @@ fn_exists add_dependency || die "function add_dependency missing from SCRIPTDIR/
 # test source_set()
 ######################################################################
 
+SETUP_DIRS= source_set test01 | grep -q "(SETUP_PATH) is empty" || die "empty search path not detected"
 source_set xxdoesnotexistxx | grep -q "does not exist" || die "missing setup file not detected"
 source_set test01 | grep -q "Loading setup file" || die "test01 setup file not found"
 
diff --git a/travis/utils.sh b/travis/utils.sh
index 0d6d6f5..ce58710 100644
--- a/travis/utils.sh
+++ b/travis/utils.sh
@@ -29,6 +29,11 @@ source_set() {
   local set_file=$1
   local set_dir
   local found=0
+  if [ -z "${SETUP_DIRS}" ]
+  then
+    echo "Search path for setup files (SETUP_PATH) is empty"
+    [ "$UTILS_UNITTEST" ] || exit 1
+  fi
   for set_dir in ${SETUP_DIRS}
   do
     if [ -e $set_dir/$set_file.set ]