From 9a5ed50d2543ec67ebf785bc9deeaf5734eff41e Mon Sep 17 00:00:00 2001
From: Riley Testut <riley@rileytestut.com>
Date: Tue, 4 Apr 2023 17:17:46 -0500
Subject: [PATCH] [AltStoreCore] Fixes migration error on launch if AltStore
 app group does not exist.

Allows falling back to using regular app sandbox instead of app group.
---
 AltStoreCore/Model/DatabaseManager.swift | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/AltStoreCore/Model/DatabaseManager.swift b/AltStoreCore/Model/DatabaseManager.swift
index 83f7e6d2..6d9763b6 100644
--- a/AltStoreCore/Model/DatabaseManager.swift
+++ b/AltStoreCore/Model/DatabaseManager.swift
@@ -351,7 +351,8 @@ private extension DatabaseManager
     
     func migrateDatabaseToAppGroupIfNeeded(completion: @escaping (Result<Void, Error>) -> Void)
     {
-        guard UserDefaults.shared.requiresAppGroupMigration else { return completion(.success(())) }
+        // Only migrate if we haven't migrated yet and there's a valid AltStore app group.
+        guard UserDefaults.shared.requiresAppGroupMigration && Bundle.main.altstoreAppGroup != nil else { return completion(.success(())) }
 
         func finish(_ result: Result<Void, Error>)
         {