update commands when running in supervised mode

ocis-pkg/sync/trap.go

@@ -0,0 +1,22 @@
+package sync
+
+import (
+	"context"
+	"os"
+	"os/signal"
+
+	"github.com/oklog/run"
+)
+
+// Trap listens to interrupt signals and handles context cancellation and channel closing on a group run.
+func Trap(gr *run.Group, cancel context.CancelFunc) {
+	stop := make(chan os.Signal, 1)
+	gr.Add(func() error {
+		signal.Notify(stop, os.Interrupt)
+		<-stop
+		return nil
+	}, func(err error) {
+		close(stop)
+		cancel()
+	})
+}