From 76fabd44bb57016fd5a6132bdc24d399a7ec1e9b Mon Sep 17 00:00:00 2001
From: gutmet <me.git@gutmet.org>
Date: Sat, 22 Dec 2018 19:50:52 +0100
Subject: [PATCH] add OptDo wrapper

---
 goutil.go | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/goutil.go b/goutil.go
index c3a5868..8ce4477 100644
--- a/goutil.go
+++ b/goutil.go
@@ -96,6 +96,14 @@ func AskFor(question string) (string, error) {
 	}
 }
 
+func OptDo(err error, f func() error) error {
+	if err == nil {
+		return f()
+	} else {
+		return err
+	}
+}
+
 func IntMin(x, y int) int {
 	if x < y {
 		return x