feat(uitl): grace exit

pkg/util/server/os.go

@@ -0,0 +1,29 @@
+package server
+
+import (
+	"os"
+	"os/signal"
+	"syscall"
+
+	"gitee.com/timedb/wheatCache/pkg/logx"
+	"google.golang.org/grpc"
+)
+
+func ElegantExitServer(s *grpc.Server) {
+	c := make(chan os.Signal)
+	signal.Notify(c, syscall.SIGHUP, syscall.SIGINT)
+	go func() {
+		select {
+		case <-c:
+			s.Stop()
+
+			msg := `
+				|-------Wheat tools---------|
+				|    see you next time      |
+				|thank you for your efforts |
+				|---------------------------|
+				`
+			logx.Infoln(msg)
+		}
+	}()
+}