chore: add `agent-string` flag

waku.go

@@ -187,6 +187,12 @@ func main() {
 				Value:   &options.LogEncoding,
 			},
 		},
+		&cli.StringFlag{
+			Name:        "agent-string",
+			Value:       "go-waku",
+			Usage:       "client id to advertise",
+			Destination: &options.UserAgent,
+		},
 		&cli.BoolFlag{
 			Name:        "relay",
 			Value:       true,

waku/node.go

@@ -152,6 +152,10 @@ func Execute(options Options) {
 		libp2pOpts = append(libp2pOpts, libp2p.NATPortMap()) // Attempt to open ports using uPNP for NATed hosts.)
 	}
 
+	if options.UserAgent != "" {
+		libp2pOpts = append(libp2pOpts, libp2p.UserAgent(options.UserAgent))
+	}
+
 	if options.Websocket.Enable {
 		nodeOpts = append(nodeOpts, node.WithWebsockets(options.Websocket.Address, options.Websocket.WSPort))
 	}

waku/options.go

@@ -152,6 +152,7 @@ type Options struct {
 	LogEncoding      string
 	NAT              string
 	PersistPeers     bool
+	UserAgent        string
 
 	Websocket    WSOptions
 	Relay        RelayOptions

waku/v2/node/wakuoptions.go

@@ -405,7 +405,8 @@ var DefaultLibP2POptions = []libp2p.Option{
 	libp2p.ChainOptions(
 		libp2p.Transport(tcp.NewTCPTransport),
 		libp2p.Transport(quic.NewTransport),
-	), libp2p.UserAgent(userAgent),
+	),
+	libp2p.UserAgent(userAgent),
 	libp2p.ChainOptions(
 		libp2p.Muxer("/yamux/1.0.0", yamux.DefaultTransport),
 		libp2p.Muxer("/mplex/6.7.0", mplex.DefaultTransport),