Manage --home option and verify home base dir

duplicati/create.homedir.sh

@@ -23,6 +23,7 @@ if [ -f /etc/nslcd.conf ]; then
 	readonly LDAP_PASSWD_CMD_DEFAULT=$(sed -n 's/\(^bindpw \)\(.*\)/\2/p' /etc/nslcd.conf)
 	readonly LDAP_USER_CMD_DEFAULT=$(sed -n 's/\(^binddn \)\(.*\)/\2/p' /etc/nslcd.conf)
 fi
+readonly HOME_BASE_DEFAULT="/home"
 
 ## Colors
 readonly PURPLE='\033[1;35m'
@@ -56,7 +57,11 @@ OPTIONS :
         LDAP group to parse in order to get the list of homedir
         to create.
 
-    -h,--help
+    -h,--home,--home-base
+        Base directory to use for user's home directory
+        (default: ${HOME_BASE_DEFAULT}).
+
+    --help
         Print this help message.
 
     -p,--password,--password-cmd "sed -n … /etc/…"
@@ -64,7 +69,8 @@ OPTIONS :
         works with NSLCD − /etc/nslcd.conf).
 
     -s,--server ldap://ldap.domain.tld
-        LDAP url to use for ldapsearch request (default: ${LDAP_SERVER_DEFAULT}).
+        LDAP url to use for ldapsearch request
+        (default: ${LDAP_SERVER_DEFAULT}).
 
     -u,--user,--user-cmd "sed -n … /etc/…"
         Command to get LDAP bind user from a file (by default,
@@ -129,6 +135,12 @@ define_vars() {                                                 # {{{
 		debug_message "Use default command to get LDAP user."
 	fi
 	# }}}
+	# If home_base wasn't defined (argument) {{{
+	if [ -z "${home_base}" ]; then
+		## Use default value
+		home_base="${HOME_BASE_DEFAULT}"
+	fi
+	# }}}
 
 }
 # }}}
@@ -204,6 +216,29 @@ ${RED}${local_command_available_cmd}${COLOR_DEBUG} is not available on this host
 
 	return "${return_command_available}"
 
+}
+# }}}
+is_directory_absent() {                                         # {{{
+
+	local_directory_absent="${1}"
+
+	## Directory doesn't exists by default
+	return_is_directory_absent="0"
+
+	### Check if the directory exists
+	# shellcheck disable=SC2086
+	if test -d "${local_directory_absent}"; then
+		return_is_directory_absent="1"
+		debug_message "is_directory_absent − \
+The directory ${RED}${local_directory_absent}${COLOR_DEBUG} exists."
+	else
+		return_is_directory_absent="0"
+		debug_message "is_directory_absent − \
+The directory ${RED}${local_directory_absent}${COLOR_DEBUG} doesn't exist."
+	fi
+
+	return "${return_is_directory_absent}"
+
 }
 # }}}
 main() {                                                        # {{{
@@ -222,19 +257,26 @@ main() {                                                        # {{{
 	### AND exit with message and error
 	is_var_empty "${ldap_group_cn}" \
 		&& usage \
-		&& error_message "Please enter a GROUP with -g|--group option." "1"
+		&& error_message "Please enter a GROUP with -g|--group option." 1
 	## }}}
 	## If ldap_user or ldap_passwd is empty {{{
 	### Print help message
 	### AND exit with message and error
 	is_var_empty_silent "${ldap_user}" "${ldap_passwd}" \
 		&& usage \
-		&& error_message "LDAP user or password is empty. Please verify your configuration or the --user-cmd|--passwd-cmd options." "2"
+		&& error_message "LDAP user or password is empty. Please verify your configuration or the --user-cmd|--passwd-cmd options." 2
 	## }}}
 
+	## If home_base directory doesn't exists {{{
+	### AND exit with message and error
+	is_directory_absent "${home_base}" \
+		&& error_message "Home base directory (${home_base}) doesn't exists. Check your configuration or use -h|--home option." 3
+	## }}}
+
+
 	## Information message
 	debug_message "Search for members in ${RED}${ldap_group_cn},${ldap_group_base}${COLOR_DEBUG} group \
-on ${RED}${ldap_server}${COLOR_DEBUG} LDAP server."
+on ${RED}${ldap_server}${COLOR_DEBUG} LDAP server in ${RED}${home_base}${COLOR_DEBUG}."
 
 }
 # }}}
@@ -276,7 +318,13 @@ if [ ! "${NBARGS}" -eq "0" ]; then
 			## Define var
 			readonly ldap_group_cn="${1}"
 			;;
-		-h|--help )                           ## help
+		-h|--home|--home-base )               ## Define home_base
+			## Move to the next argument
+			shift
+			## Define var
+			readonly home_base="${1}"
+			;;
+		--help )                              ## help
 			usage
 			## Exit after help informations
 			exit 0