Rewrite constructor to functional opts

node/modules/lp2p/addrs.go

@@ -3,9 +3,8 @@ package lp2p
 import (
 	"fmt"
 
-	"github.com/filecoin-project/go-lotus/node/config"
 	"github.com/libp2p/go-libp2p"
-	host "github.com/libp2p/go-libp2p-core/host"
+	"github.com/libp2p/go-libp2p-core/host"
 	p2pbhost "github.com/libp2p/go-libp2p/p2p/host/basic"
 	mafilter "github.com/libp2p/go-maddr-filter"
 	ma "github.com/multiformats/go-multiaddr"
@@ -95,22 +94,24 @@ func listenAddresses(addresses []string) ([]ma.Multiaddr, error) {
 	return listen, nil
 }
 
-func StartListening(host host.Host, cfg *config.Root) error {
-	listenAddrs, err := listenAddresses(cfg.Libp2p.ListenAddresses)
-	if err != nil {
-		return err
-	}
+func StartListening(addresses []string) func(host host.Host) error {
+	return func(host host.Host) error {
+		listenAddrs, err := listenAddresses(addresses)
+		if err != nil {
+			return err
+		}
 
-	// Actually start listening:
-	if err := host.Network().Listen(listenAddrs...); err != nil {
-		return err
-	}
+		// Actually start listening:
+		if err := host.Network().Listen(listenAddrs...); err != nil {
+			return err
+		}
 
-	// list out our addresses
-	addrs, err := host.Network().InterfaceListenAddresses()
-	if err != nil {
-		return err
+		// list out our addresses
+		addrs, err := host.Network().InterfaceListenAddresses()
+		if err != nil {
+			return err
+		}
+		log.Infof("Swarm listening at: %s", addrs)
+		return nil
 	}
-	log.Infof("Swarm listening at: %s", addrs)
-	return nil
 }