Merge pull request #115 from brianhuster/dev

Dev

lua/livepreview/init.lua

@@ -52,11 +52,9 @@ function M.preview_file(filepath, port)
 		server:start("127.0.0.1", port, function(client)
 			if M.utils.supported_filetype(filepath) == 'html' then
 				M.server.websocket.send_json(client, { type = "reload" })
-				print("Send reload message")
 			else
 				local content = M.utils.uv_read_file(filepath)
 				M.server.websocket.send_json(client, { type = "update", content = content })
-				print("Send update message")
 			end
 		end)
 	end)

lua/livepreview/server/Server.lua

@@ -98,7 +98,13 @@ end
 --- @param func function(client)|nil: function to call when when there is a change in the watched directory
 --- 	@param client uv_tcp_t: uv_tcp client
 function Server:start(ip, port, func)
-	self.server:bind(ip, port)
+	local result = self.server:bind(ip, port)
+	if result == 0 then
+		print(string.format(
+			"Note : If live-preview doesn't work, please check and stop the process that uses the port %d",
+			port))
+		return
+	end
 	self.server:listen(128, function(err)
 		if err then
 			print("Listen error: " .. err)