Rid GCT os.Exit's in packages outside of main

signaler/signaler.go

@@ -0,0 +1,28 @@
+package signaler
+
+import (
+	"os"
+	"os/signal"
+	"syscall"
+)
+
+var (
+	s = make(chan os.Signal, 1)
+)
+
+func init() {
+	sigs := []os.Signal{
+		os.Interrupt,
+		os.Kill,
+		syscall.SIGTERM,
+		syscall.SIGQUIT,
+		syscall.SIGABRT,
+	}
+	signal.Notify(s, sigs...)
+}
+
+// WaitForInterrupt waits until a os.Signal is
+// received and returns the result
+func WaitForInterrupt() os.Signal {
+	return <-s
+}