keep uci_set from saving things that have not changed

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@7259 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/package/base-files/files/lib/config/uci.sh b/package/base-files/files/lib/config/uci.sh
index a76300f..e029336 100644 (file)
--- a/package/base-files/files/lib/config/uci.sh
+++ b/package/base-files/files/lib/config/uci.sh
@@ -76,8 +76,11 @@ uci_set() {
 
        ( # spawn a subshell so you don't mess up the current environment
                uci_load "$PACKAGE"
-               config_get type "$CONFIG" TYPE
-               [ -z "$type" ]
+               config_get OLDVAL "$CONFIG" "$OPTION"
+               if [ "$OLDVAL" != "$VALUE" ]; then
+                       config_get type "$CONFIG" TYPE
+                       [ -z "$type" ]
+               fi
        ) || uci_add_update "$PACKAGE" "config_set '$CONFIG' '$OPTION' '$VALUE'"
 }