From 25e1c4184e7048313f040499bc8e413ed6d61b9e Mon Sep 17 00:00:00 2001
From: Matthias Schmidt <gravatronics@live.com>
Date: Fri, 11 Jun 2021 14:26:06 +0200
Subject: [PATCH] Do nothing in file deletion PIPs during uninstallation

---
 ...ileDeletePackageInstallationPlugin.class.php | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/wcfsetup/install/files/lib/system/package/plugin/AbstractFileDeletePackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/AbstractFileDeletePackageInstallationPlugin.class.php
index f089361936..42b901729b 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/AbstractFileDeletePackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/AbstractFileDeletePackageInstallationPlugin.class.php
@@ -139,6 +139,23 @@ abstract class AbstractFileDeletePackageInstallationPlugin extends AbstractXMLPa
         return [];
     }
 
+    /**
+     * @inheritDoc
+     */
+    public function hasUninstall()
+    {
+        // File deletions cannot be reverted.
+        return false;
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function uninstall()
+    {
+        // File deletions cannot be reverted.
+    }
+
     /**
      * Returns the language item with the description of the file field or `null` if no description
      * should be shown.
-- 
2.20.1