From 6c134757cf2094b087b55a0df605d27c847d750d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Gardais=20J=C3=A9r=C3=A9my?=
 <jeremy.gardais@univ-rennes1.fr>
Date: Fri, 19 Nov 2021 14:05:56 +0100
Subject: [PATCH] Test empty var in main

---
 duplicati/create.homedir.sh | 44 ++++++++++++++++++++++++++++++++-----
 1 file changed, 38 insertions(+), 6 deletions(-)

diff --git a/duplicati/create.homedir.sh b/duplicati/create.homedir.sh
index 861d558..94aaa77 100755
--- a/duplicati/create.homedir.sh
+++ b/duplicati/create.homedir.sh
@@ -67,8 +67,8 @@ error_message() {                                               # {{{
 	local_error_message="${1}"
 	local_error_code="${2}"
 
-	## Print message if DEBUG is enable (=0)
-	[ "${DEBUG}" -eq "0" ] && printf '%b\n' "ERROR − ${PROGNAME} : ${RED}${local_error_message}${RESET}"
+	## Print error message
+	printf '%b\n' "ERROR − ${PROGNAME} : ${RED}${local_error_message}${RESET}"
 
 	exit "${local_error_code:=66}"
 }
@@ -77,21 +77,53 @@ define_vars() {                                                 # {{{
 
 	# If ldap_group_cn wasn't defined (argument) {{{
 	if [ -z "${ldap_group_cn}" ]; then
-		## Display help message
-		usage
-		## As ldap_group_cn is required, exit with message and error
-		error_message "Please enter a GROUP with -g|--group option" "1"
+		## Keep it empty
+		ldap_group_cn=""
 	fi
 	# }}}
 
 }
 # }}}
 
+is_var_empty() {                                                # {{{
+
+	## Return False by default
+	return_var_empty="1"
+	## Total number of variables to test
+	local_total_var="${#}"
+
+	loop_count_var_empty="0"
+
+	## While it remains a variable to test
+	while [ "${local_total_var}" -gt "${loop_count_var_empty}" ]; do
+		debug_message "is_var_empty − \
+Test var: ${1}."
+		### Test if this is empty and set return value to True
+		[ -z "${1}" ] && return_var_empty="0"
+
+		### Increase the number of tested variables
+		loop_count_var_empty=$((loop_count_var_empty+1))
+
+		### Shift to the next variable
+		shift
+	done
+
+	return "${return_var_empty}"
+
+}
+# }}}
 main() {                                                        # {{{
 
 	## Define all vars
 	define_vars
 
+	## If ldap_group_cn is empty
+	### Print help message
+	### AND exit with message and error
+	is_var_empty "${ldap_group_cn}" \
+		&& usage \
+		&& error_message "Please enter a GROUP with -g|--group option." "1"
+
 }
 # }}}