From 13b620a224212aafb555a2d7331780bd8b8331dd Mon Sep 17 00:00:00 2001
From: Martin Winkler <efelon@winklerfamilie.eu>
Date: Thu, 2 Jun 2022 13:05:14 +0200
Subject: [PATCH] sequencer - updating documentation

---
 seqTemplate.sh | 4 ++++
 sequencer.sh   | 5 +++--
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/seqTemplate.sh b/seqTemplate.sh
index 1b471d8..197fc31 100755
--- a/seqTemplate.sh
+++ b/seqTemplate.sh
@@ -28,6 +28,10 @@ seq_config() {
   ## Apt cmdline option to suppress user interaction
   interactive || sq_aptOpt="-y"
 
+  ## Disable error checks if external scripts are used
+  ## e.g. error on unbound variables
+  #disableErrorCheck
+
   ## Return of non zero value will abort the sequence
   return 0
 }
diff --git a/sequencer.sh b/sequencer.sh
index 7f7633a..ccbf9e3 100755
--- a/sequencer.sh
+++ b/sequencer.sh
@@ -3,11 +3,12 @@
 # shellcheck disable=SC1090 # follow non constant source
 
 enableErrorCheck() {
-# Do not allow use of undefined vars. Use ${VAR:-} to use an undefined VAR
+  # Do not allow use of unbound variables.
+  # Use ${VAR:-} if possibly unbound
   set -o nounset
 }
 disableErrorCheck() {
-# Do not allow use of undefined vars. Use ${VAR:-} to use an undefined VAR
+  # Do allow the use of unbound vars.
   set +o nounset
 }