From d924609a9d3d8ead34c21096196b50f32ce50561 Mon Sep 17 00:00:00 2001
From: Bastian Dehn <hhaalo@arcor.de>
Date: Tue, 18 Nov 2025 17:41:51 +0100
Subject: [PATCH] change refactor postinst script

---
 src/debian/postinst | 38 ++++++++++++++++++++++++--------------
 1 file changed, 24 insertions(+), 14 deletions(-)

diff --git a/src/debian/postinst b/src/debian/postinst
index 32e9895..94f8a4b 100644
--- a/src/debian/postinst
+++ b/src/debian/postinst
@@ -1,26 +1,36 @@
 #!/bin/bash
 
+errlog()
+{
+	local lastexit=$?
+	local msg="$1"
+
+	echo "$msg"
+
+	return $lastexit
+}
+
 main()
 {
-	DLLCONFIG="/etc/sane.d/dll.conf"
-	ENTRY="kds_s2000w_net"
+	local DLLCONFIG="/etc/sane.d/dll.conf"
+	local ENTRY="kds_s2000w_net"
 
-	if [ ! -f "$DLLCONFIG" ]; then
-		echo "ERROR: $DLLCONFIG does not exist"
-		exit 0
-	fi
+	[ -f "$DLLCONFIG" ] \
+		|| errlog "ERROR: $DLLCONFIG does not exist" \
+		|| return $?
 
 	echo "found $DLLCONFIG"
-	ENTRYCHECK=$(cat $DLLCONFIG | grep $ENTRY)
+	local entrycheck=$(cat $DLLCONFIG | grep $ENTRY)
+
+	[ -n "$entrycheck" ] \
+		&& echo "$ENTRY entry exists in $DLLCONFIG" \
+		&& return 0
 
-	if [ -n "$ENTRYCHECK" ]; then
-		echo "$ENTRY entry exists in $DLLCONFIG"
-		exit 0
-	fi
+	sed -i "\$a$ENTRY" $DLLCONFIG \
+		|| errlog "could not add entry $ENTRY to $DLLCONFIG" \
+		|| return $?
 
-	sed -i "\$a$ENTRY" $DLLCONFIG
 	echo "add $ENTRY to $DLLCONFIG"
 }
 
-main
-exit 0
\ No newline at end of file
+main
\ No newline at end of file
-- 
2.47.3