Add watchdog script written in Lua to the gluon-mesh-vpn-tunneldigger

package/gluon-mesh-vpn-tunneldigger/files/usr/bin/tunneldigger-watchdog

@@ -6,37 +6,37 @@ function restart_tunneldigger()
 end
 
 function read_pid_file()
-	local pidFile = io.open("/var/run/tunneldigger.mesh-vpn.pid", "r")
-	if not pidFile then
+	local pid_file = io.open("/var/run/tunneldigger.mesh-vpn.pid", "r")
+	if not pid_file then
 		return nil
 	end
-	returnPid = pidFile:read("*l") 
-	io.close(pidFile)
-	return returnPid
+	pid = pid_file:read("*l") 
+	pid_file:close()
+	return pid
 end
 
 function check_for_mesh_vpn_neighbours()
-	local handleBatctl = io.popen("batctl o", 'r')
-	if handleBatctl~=nil then
-		for line in handleBatctl:lines() do
+	local handle_batctl = io.popen("batctl o", 'r')
+	if handle_batctl~=nil then
+		for line in handle_batctl:lines() do
 			if line:find('mesh%-vpn') then
-				handleBatctl.close()
+				handle_batctl:close()
 				return true
 			end
 		end
 	end
-	handleBatctl.close()
+	handle_batctl:close()
 	return false
 end
 
 local uci = require('simple-uci').cursor()
 if uci:get_bool('tunneldigger', 'mesh_vpn', 'enabled') then
-	if io.popen("pgrep tunneldigger"):read("*l") ~= readPidFile() then
+	if io.popen("pgrep tunneldigger"):read("*l") ~= read_pid_file() then
 		io.popen('logger -t tunneldigger-watchdog "Process-Pid does not match with pid-File."')
 		restart_tunneldigger()
 		return
 	end
-	if check_for_mesh_vpn_neighbours() ~= true then
+	if not check_for_mesh_vpn_neighbours() then
 		io.popen('logger -t tunneldigger-watchdog "No vpn-mesh neighbours found."')
 		restart_tunneldigger()
 		return