Extract function to listen on Unix socket

net/listen.go

@@ -0,0 +1,18 @@
+package net
+
+import (
+	"fmt"
+	"net"
+	"os"
+)
+
+func ListenUnixSocket(pathname string) (net.Listener, error) {
+	if err := os.Remove(pathname); err != nil && !os.IsNotExist(err) {
+		return nil, fmt.Errorf("Error removing existing unix socket: %s", err)
+	}
+	listener, err := net.Listen("unix", pathname)
+	if err != nil {
+		return nil, fmt.Errorf("ListenUnixSocket failed: %s", err)
+	}
+	return listener, nil
+}