From: Felix Fietkau <nbd@openwrt.org>
Date: Tue, 29 Oct 2013 15:11:55 +0000 (+0100)
Subject: scripts/utils.sh: add a function for setting a variable default
X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fnetifd.git;a=commitdiff_plain;h=fce61c6d35515b6f89b50f42ac2cba6b4b60159e;hp=f80b9e4acc47cf454768b44142495fdb8a68a39f

scripts/utils.sh: add a function for setting a variable default

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
---

diff --git a/scripts/utils.sh b/scripts/utils.sh
index 01d8ad5..a5dc782 100644
--- a/scripts/utils.sh
+++ b/scripts/utils.sh
@@ -13,6 +13,12 @@ add_default_handler() {
 	esac
 }
 
+set_default() {
+	local __s_var="$1"
+	local __s_val="$2"
+	eval "export -- \"$__s_var=\${$__s_var:-\$__s_val}\""
+}
+
 _config_add_generic() {
 	local type="$1"; shift