Intermediate... working on debora

common/os.go

@@ -0,0 +1,22 @@
+package common
+
+import (
+	"fmt"
+	"os"
+	"os/signal"
+)
+
+func TrapSignal(cb func()) {
+	c := make(chan os.Signal, 1)
+	signal.Notify(c, os.Interrupt)
+	go func() {
+		for sig := range c {
+			fmt.Printf("captured %v, exiting...\n", sig)
+			if cb != nil {
+				cb()
+			}
+			os.Exit(1)
+		}
+	}()
+	select {}
+}