From fa1d056316fd01d04ab62b6687925dc66b23c2f9 Mon Sep 17 00:00:00 2001
From: mckaygerhard <mckaygerhard@gmail.com>
Date: Thu, 5 Jan 2023 16:34:19 -0400
Subject: [PATCH] Fix core.download_file() creating empty files on HTTP error

* backported commit 55a77e8094994cd5bb970b38b6a2bd394346ec36
---
 src/guiEngine.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/guiEngine.cpp b/src/guiEngine.cpp
index 8661b1ca2..95cd7c0e0 100644
--- a/src/guiEngine.cpp
+++ b/src/guiEngine.cpp
@@ -581,6 +581,8 @@ 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;