add sync wait cmd ctrl+c exit

cli/sync.go

@@ -2,6 +2,9 @@ package cli
 
 import (
 	"fmt"
+	"os"
+	"os/signal"
+	"syscall"
 	"time"
 
 	cid "github.com/ipfs/go-cid"
@@ -64,6 +67,9 @@ var syncWaitCmd = &cli.Command{
 		defer closer()
 		ctx := ReqContext(cctx)
 
+		sigChan := make(chan os.Signal, 2)
+		signal.Notify(sigChan, syscall.SIGTERM, syscall.SIGINT)
+
 		for {
 			ss, err := napi.SyncState(ctx)
 			if err != nil {
@@ -81,7 +87,12 @@ var syncWaitCmd = &cli.Command{
 				return nil
 			}
 
-			time.Sleep(1 * time.Second)
+			select {
+			case <-sigChan:
+				fmt.Println("\nExit by user")
+				return nil
+			case <-time.After(1 * time.Second):
+			}
 		}
 	},
 }