From 87ecaeda3db4e8960aa74261c6e4fb81f0d2fba1 Mon Sep 17 00:00:00 2001
From: Nikola Irinchev <irinchev@me.com>
Date: Mon, 5 Oct 2020 11:44:01 +0200
Subject: [PATCH] Download realm binaries to a random path

---
 wrappers/CMakeLists.txt | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/wrappers/CMakeLists.txt b/wrappers/CMakeLists.txt
index 6785798cca..57e8d8824d 100644
--- a/wrappers/CMakeLists.txt
+++ b/wrappers/CMakeLists.txt
@@ -24,8 +24,13 @@ function(download_realm_tarball url target libraries)
     if (NOT EXISTS ${tarball_path})
         if (NOT EXISTS ${temp_tarball_path})
             message("Downloading ${url}.")
-            file(DOWNLOAD ${url} ${temp_tarball_path}.tmp SHOW_PROGRESS)
-            file(RENAME ${temp_tarball_path}.tmp ${temp_tarball_path})
+            string(RANDOM suffix)
+            set(temp_download_path "${temp_tarball_path}-${suffix}.tmp")
+            message("Downloading ${url} to ${temp_download_path}.")
+            file(DOWNLOAD ${url} ${temp_download_path} SHOW_PROGRESS)
+            if (NOT EXISTS ${temp_tarball_path})
+                file(RENAME ${temp_download_path} ${temp_tarball_path})
+            endif()
         endif()
         file(COPY ${temp_tarball_path} DESTINATION ${tarball_parent_directory})
     endif()