From 9de8d8e8322b94935ea5120efaecfe67755e507c Mon Sep 17 00:00:00 2001
From: udeved <artoo@manjaro.org>
Date: Sun, 14 Jun 2015 22:31:31 +0200
Subject: [PATCH] [util-iso] add a validity check for bool var strings

---
 lib/util.sh | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/lib/util.sh b/lib/util.sh
index 74507ad..5195a43 100644
--- a/lib/util.sh
+++ b/lib/util.sh
@@ -541,3 +541,11 @@ check_chroot_version(){
 	[[ -f $1/.manjaro-tools ]] && local chroot_version=$(cat $1/.manjaro-tools)
 	[[ ${version} != $chroot_version ]] && clean_first=true
 }
+
+is_valid_bool(){
+	case $1 in
+		'true') return 0 ;;
+		'false') return 0 ;;
+		*) return 1 ;;
+	esac
+}