feat(cli): data transfer watch option

make watching data transfer CLI updates only an option

cli/client.go

@@ -3,6 +3,7 @@ package cli
 import (
 	"encoding/json"
 	"fmt"
+	"io"
 	"os"
 	"path/filepath"
 	"sort"
@@ -1209,7 +1210,7 @@ var clientInfoCmd = &cli.Command{
 
 var clientListTransfers = &cli.Command{
 	Name:  "list-transfers",
-	Usage: "Monitor ongoing data transfers for deals",
+	Usage: "List ongoing data transfers for deals",
 	Flags: []cli.Flag{
 		&cli.BoolFlag{
 			Name:  "color",
@@ -1220,6 +1221,10 @@ var clientListTransfers = &cli.Command{
 			Name:  "completed",
 			Usage: "show completed data transfers",
 		},
+		&cli.BoolFlag{
+			Name:  "watch",
+			Usage: "watch deal updates in real-time, rather than a one time list",
+		},
 	},
 	Action: func(cctx *cli.Context) error {
 		api, closer, err := GetFullNodeAPI(cctx)
@@ -1234,6 +1239,11 @@ var clientListTransfers = &cli.Command{
 			return err
 		}
 
+		completed := cctx.Bool("completed")
+		color := cctx.Bool("color")
+		watch := cctx.Bool("watch")
+
+		if watch {
 			channelUpdates, err := api.ClientDataTransferUpdates(ctx)
 			if err != nil {
 				return err
@@ -1244,53 +1254,7 @@ var clientListTransfers = &cli.Command{
 
 				tm.MoveCursor(1, 1)
 
-			sort.Slice(channels, func(i, j int) bool {
+				outputChannels(tm.Screen, channels, completed, color)
-				return channels[i].TransferID < channels[j].TransferID
-			})
-
-			completed := cctx.Bool("completed")
-			var receivingChannels, sendingChannels []lapi.DataTransferChannel
-			for _, channel := range channels {
-				if !completed && channel.Status == datatransfer.Completed {
-					continue
-				}
-				if channel.IsSender {
-					sendingChannels = append(sendingChannels, channel)
-				} else {
-					receivingChannels = append(receivingChannels, channel)
-				}
-			}
-
-			color := cctx.Bool("color")
-
-			tm.Printf("Sending Channels\n\n")
-			w := tablewriter.New(tablewriter.Col("ID"),
-				tablewriter.Col("Status"),
-				tablewriter.Col("Sending To"),
-				tablewriter.Col("Root Cid"),
-				tablewriter.Col("Initiated?"),
-				tablewriter.Col("Transferred"),
-				tablewriter.Col("Voucher"),
-				tablewriter.NewLineCol("Message"))
-			for _, channel := range sendingChannels {
-				w.Write(toChannelOutput(color, "Sending To", channel))
-			}
-			w.Flush(tm.Screen)
-
-			fmt.Fprintf(os.Stdout, "\nReceiving Channels\n\n")
-			w = tablewriter.New(tablewriter.Col("ID"),
-				tablewriter.Col("Status"),
-				tablewriter.Col("Receiving From"),
-				tablewriter.Col("Root Cid"),
-				tablewriter.Col("Initiated?"),
-				tablewriter.Col("Transferred"),
-				tablewriter.Col("Voucher"),
-				tablewriter.NewLineCol("Message"))
-			for _, channel := range receivingChannels {
-
-				w.Write(toChannelOutput(color, "Receiving From", channel))
-			}
-			w.Flush(tm.Screen)
 
 				tm.Flush()
 
@@ -1314,9 +1278,58 @@ var clientListTransfers = &cli.Command{
 					}
 				}
 			}
+		}
+		outputChannels(os.Stdout, channels, completed, color)
+		return nil
 	},
 }
 
+func outputChannels(out io.Writer, channels []api.DataTransferChannel, completed bool, color bool) {
+	sort.Slice(channels, func(i, j int) bool {
+		return channels[i].TransferID < channels[j].TransferID
+	})
+
+	var receivingChannels, sendingChannels []lapi.DataTransferChannel
+	for _, channel := range channels {
+		if !completed && channel.Status == datatransfer.Completed {
+			continue
+		}
+		if channel.IsSender {
+			sendingChannels = append(sendingChannels, channel)
+		} else {
+			receivingChannels = append(receivingChannels, channel)
+		}
+	}
+
+	fmt.Fprintf(out, "Sending Channels\n\n")
+	w := tablewriter.New(tablewriter.Col("ID"),
+		tablewriter.Col("Status"),
+		tablewriter.Col("Sending To"),
+		tablewriter.Col("Root Cid"),
+		tablewriter.Col("Initiated?"),
+		tablewriter.Col("Transferred"),
+		tablewriter.Col("Voucher"),
+		tablewriter.NewLineCol("Message"))
+	for _, channel := range sendingChannels {
+		w.Write(toChannelOutput(color, "Sending To", channel))
+	}
+	w.Flush(out)
+
+	fmt.Fprintf(out, "\nReceiving Channels\n\n")
+	w = tablewriter.New(tablewriter.Col("ID"),
+		tablewriter.Col("Status"),
+		tablewriter.Col("Receiving From"),
+		tablewriter.Col("Root Cid"),
+		tablewriter.Col("Initiated?"),
+		tablewriter.Col("Transferred"),
+		tablewriter.Col("Voucher"),
+		tablewriter.NewLineCol("Message"))
+	for _, channel := range receivingChannels {
+		w.Write(toChannelOutput(color, "Receiving From", channel))
+	}
+	w.Flush(out)
+}
+
 func channelStatusString(useColor bool, status datatransfer.Status) string {
 	s := datatransfer.Statuses[status]
 	if !useColor {