update

main.go

@@ -0,0 +1,34 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+	"os/signal"
+	"time"
+)
+
+func main() {
+	c := make(chan os.Signal, 1)
+	signal.Notify(c, os.Interrupt)
+	file, err := os.OpenFile("out", os.O_APPEND|os.O_WRONLY|os.O_CREATE, 0600)
+	if err != nil {
+		panic(err)
+	}
+	file.WriteString("start: " + os.Args[1] + "\n")
+	for {
+		select {
+		case <-c:
+			file.WriteString("bye\n")
+			exe, _ := os.Executable()
+			cmd := exec.Command(exe, os.Args[1:]...)
+			err := cmd.Start()
+			if err != nil {
+				fmt.Println(err)
+			}
+			os.Exit(0)
+		case <-time.Tick(time.Second):
+			file.WriteString("test\n")
+		}
+	}
+}