handle clean shutdown

cln_plugin/cmd/main.go

@@ -2,11 +2,20 @@ package main
 
 import (
 	"os"
+	"os/signal"
+	"syscall"
 
 	"github.com/breez/lspd/cln_plugin"
 )
 
 func main() {
 	plugin := cln_plugin.NewClnPlugin(os.Stdin, os.Stdout)
+	c := make(chan os.Signal, 1)
+	signal.Notify(c, syscall.SIGINT, syscall.SIGTERM)
+	go func() {
+		<-c
+		// Stop everything gracefully on stop signal
+		plugin.Stop()
+	}()
 	plugin.Start()
 }