cmd: add siginfo handler

cmd/cmd.go

@@ -303,6 +303,7 @@ func Run(Retry bool, showStats bool, cmd *cobra.Command, f func() error) {
 	if showStats {
 		stopStats = StartStats()
 	}
+	SigInfoHandler()
 	for try := 1; try <= *retries; try++ {
 		err = f()
 		if !Retry || (err == nil && !accounting.Stats.Errored()) {

cmd/siginfo_darwin.go

@@ -0,0 +1,23 @@
+//+build darwin
+
+package cmd
+
+import (
+	"log"
+	"os"
+	"os/signal"
+	"syscall"
+
+	"github.com/ncw/rclone/fs/accounting"
+)
+
+// SigInfoHandler creates SigInfo handler
+func SigInfoHandler() {
+	signals := make(chan os.Signal, 1)
+	signal.Notify(signals, syscall.SIGINFO)
+	go func() {
+		for range signals {
+			log.Printf("%v\n", accounting.Stats)
+		}
+	}()
+}

cmd/siginfo_others.go

@@ -0,0 +1,7 @@
+//+build !darwin
+
+package cmd
+
+// SigInfoHandler creates SigInfo handler
+func SigInfoHandler() {
+}