From e83796cd9460011925157f39aa0eb1ab105e16c2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jelmer=20Vernoo=C4=B3?= <jelmer@jelmer.uk>
Date: Mon, 13 Mar 2023 23:54:55 +0000
Subject: [PATCH] Fix fetching into MemoryRepo

Fixes #1157
---
 NEWS                             |  2 ++
 dulwich/object_store.py          | 10 ++++++++++
 dulwich/tests/test_repository.py |  6 ++++++
 3 files changed, 18 insertions(+)

diff --git a/NEWS b/NEWS
index 5be495267..43ced4d67 100644
--- a/NEWS
+++ b/NEWS
@@ -2,6 +2,8 @@
 
  * Deprecate ``dulwich.objects.parse_commit``.
 
+ * Fix fetching into MemoryRepo. (Jelmer Vernooij, #1157)
+
 0.21.3	2023-02-17
 
  * Add support for ``worktreeconfig`` extension.
diff --git a/dulwich/object_store.py b/dulwich/object_store.py
index 8888696eb..4446c7593 100644
--- a/dulwich/object_store.py
+++ b/dulwich/object_store.py
@@ -1048,6 +1048,16 @@ def abort():
 
         return f, commit, abort
 
+    def add_pack_data(self, count: int, unpacked_objects: Iterator[UnpackedObject], progress=None) -> None:
+        """Add pack data to this object store.
+
+        Args:
+          count: Number of items to add
+          pack_data: Iterator over pack data tuples
+        """
+        for unpacked_object in unpacked_objects:
+            self.add_object(unpacked_object.sha_file())
+
     def add_thin_pack(self, read_all, read_some, progress=None):
         """Add a new thin pack to this object store.
 
diff --git a/dulwich/tests/test_repository.py b/dulwich/tests/test_repository.py
index 7fa631a18..bcb827796 100644
--- a/dulwich/tests/test_repository.py
+++ b/dulwich/tests/test_repository.py
@@ -124,6 +124,12 @@ def test_set_description(self):
         r.set_description(description)
         self.assertEqual(description, r.get_description())
 
+    def test_pull_into(self):
+        r = MemoryRepo.init_bare([], {})
+        repo = open_repo("a.git")
+        self.addCleanup(tear_down_repo, repo)
+        repo.fetch(r)
+
 
 class RepositoryRootTests(TestCase):
     def mkdtemp(self):