From 6a03a248227bf762d64148bd8e68b0a9663fecce Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?L=C3=A9o=20Lam?= <leo@innovatetechnologi.es>
Date: Sun, 1 Oct 2017 12:46:38 +0200
Subject: [PATCH] WiiUtils: Warn before overwriting during WAD import

---
 Source/Core/Core/WiiUtils.cpp | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Source/Core/Core/WiiUtils.cpp b/Source/Core/Core/WiiUtils.cpp
index 6667bf80e7..5bca8ae1cc 100644
--- a/Source/Core/Core/WiiUtils.cpp
+++ b/Source/Core/Core/WiiUtils.cpp
@@ -122,6 +122,15 @@ bool InstallWAD(const std::string& wad_path)
   if (wad.GetTMD().GetContents() == installed_contents)
     return true;
 
+  // If a different version is currently installed, warn the user to make sure
+  // they don't overwrite the current version by mistake.
+  if (ios.GetES()->FindInstalledTMD(wad.GetTMD().GetTitleId()).IsValid() &&
+      !AskYesNoT("A different version of this title is already installed on the NAND. "
+                 "Installing this WAD will replace it irreversibly. Continue?"))
+  {
+    return false;
+  }
+
   const bool result = InstallWAD(ios, wad);
 
   DiscIO::NANDContentManager::Access().ClearCache();