From 9a071d66a59bd0db72d09a3ca75b2ab9247dda92 Mon Sep 17 00:00:00 2001
From: rubenwardy <rw@rubenwardy.com>
Date: Sun, 3 Feb 2019 17:30:33 +0000
Subject: Fix core.download_file() creating empty files on HTTP error

---
 src/gui/guiEngine.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/gui/guiEngine.cpp b/src/gui/guiEngine.cpp
index a61847a04..92e9db0fc 100644
--- a/src/gui/guiEngine.cpp
+++ b/src/gui/guiEngine.cpp
@@ -530,7 +530,6 @@ bool GUIEngine::downloadFile(const std::string &url, const std::string &target)
 {
 #if USE_CURL
 	std::ofstream target_file(target.c_str(), std::ios::out | std::ios::binary);
-
 	if (!target_file.good()) {
 		return false;
 	}
@@ -543,6 +542,8 @@ bool GUIEngine::downloadFile(const std::string &url, const std::string &target)
 	httpfetch_sync(fetch_request, fetch_result);
 
 	if (!fetch_result.succeeded) {
+		target_file.close();
+		fs::DeleteSingleFileOrEmptyDirectory(target);
 		return false;
 	}
 	target_file << fetch_result.data;
-- 
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