From a55395c9091fa95715e7feab20b0e7ad2e27c0d6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thomas=20Fr=C3=B6ssman?= <thomasf@jossystem.se>
Date: Tue, 10 Mar 2015 00:48:54 +0100
Subject: [PATCH] Fix windows panic on os.Rename when target file exists

---
 atomicfile.go | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/atomicfile.go b/atomicfile.go
index 60cda2a..ab3f291 100644
--- a/atomicfile.go
+++ b/atomicfile.go
@@ -7,6 +7,7 @@ import (
 	"io/ioutil"
 	"os"
 	"path/filepath"
+	"runtime"
 )
 
 // File behaves like os.File, but does an atomic rename operation at Close.
@@ -34,6 +35,11 @@ func (f *File) Close() error {
 	if err := f.File.Close(); err != nil {
 		return err
 	}
+	if runtime.GOOS == "windows" {
+		if err := os.Remove(f.path); err != nil {
+			return err
+		}
+	}
 	if err := os.Rename(f.Name(), f.path); err != nil {
 		return err
 	}