cmd/lncli: add new taproot channel type for openchannel

cmd/lncli/cmd_open_channel.go

@@ -59,8 +59,9 @@ Signed base64 encoded PSBT or hex encoded raw wire TX (or path to file): `
 	// of memory issues or other weird errors.
 	psbtMaxFileSize = 1024 * 1024
 
-	channelTypeTweakless = "tweakless"
-	channelTypeAnchors   = "anchors"
+	channelTypeTweakless     = "tweakless"
+	channelTypeAnchors       = "anchors"
+	channelTypeSimpleTaproot = "taproot"
 )
 
 // TODO(roasbeef): change default number of confirmations.
@@ -220,8 +221,9 @@ var openChannelCommand = cli.Command{
 		cli.StringFlag{
 			Name: "channel_type",
 			Usage: fmt.Sprintf("(optional) the type of channel to "+
-				"propose to the remote peer (%q, %q)",
-				channelTypeTweakless, channelTypeAnchors),
+				"propose to the remote peer (%q, %q, %q)",
+				channelTypeTweakless, channelTypeAnchors,
+				channelTypeSimpleTaproot),
 		},
 		cli.BoolFlag{
 			Name: "zero_conf",
@@ -370,6 +372,8 @@ func openChannel(ctx *cli.Context) error {
 		req.CommitmentType = lnrpc.CommitmentType_STATIC_REMOTE_KEY
 	case channelTypeAnchors:
 		req.CommitmentType = lnrpc.CommitmentType_ANCHORS
+	case channelTypeSimpleTaproot:
+		req.CommitmentType = lnrpc.CommitmentType_SIMPLE_TAPROOT
 	default:
 		return fmt.Errorf("unsupported channel type %v", channelType)
 	}