Luci-app-nps change to use procd init script (#1895)

* Add luci-app-nps

https://github.com/cnlh/nps

* Luci-app-nps change to use procd init script

* optimize Shell script

package/lean/luci-app-nps/root/etc/init.d/nps

@@ -2,8 +2,7 @@
 # Copyright (C) 2006-2011 OpenWrt.org
 
 START=50
-SERVICE_WRITE_PID=1
-SERVICE_DAEMONIZE=1
+USE_PROCD=1
 
 LOGFILE="/var/etc/nps.log"
 tmpconf="/tmp/etc/nps.conf"
@@ -46,23 +45,20 @@ nps_write_bool() {
 	fi
 }
 
-start() {
+start_service() {
 	config_load nps
 	config_foreach nps_header nps
 
-	if [ "$Enabled" = "0" ];then
-		stop
-	else
-		logger -t FRPC 'Starting Nps service'
-		service_start /usr/bin/npc -config=$tmpconf -log_level=$Log_level -log_path=$LOGFILE
+	if [ "$Enabled" = "1" ];then
+		logger -t FRPC 'Starting Nps service' 
+		#service_start /usr/bin/npc -config=$tmpconf -log_level=$Log_level -log_path=$LOGFILE
+		procd_open_instance
+    		procd_set_param command /usr/bin/npc -config=$tmpconf -log_level=$Log_level 
+    		procd_set_param file $tmpconf
+    		procd_set_param respawn
+    		procd_set_param stdout 1
+    		procd_set_param stderr 1
+    		procd_close_instance
 	fi
-
-	return 0
 }
 
-stop() {
-	service_stop /usr/bin/npc
-	rm $tmpconf
-	logger -t FRPC 'Nps service stopped' 
-	return 0
-}