Add support for sha256 repositories (#23894)

Currently only SHA1 repositories are supported by Gitea. This adds
support for alternate SHA256 with the additional aim of easier support
for additional hash types in the future.

Fixes: #13794
Limited by: https://github.com/go-git/go-git/issues/899
Depend on: #28138

<img width="776" alt="图片" src="https://github.com/go-gitea/gitea/assets/81045/5448c9a7-608e-4341-a149-5dd0069c9447">

---------

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: 6543 <6543@obermui.de>

55 files changed, 99 insertions, 0 deletions

diff --git a/modules/git/tests/repos/repo1_bare_sha256/HEAD b/modules/git/tests/repos/repo1_bare_sha256/HEAD
new file mode 100644
index 0000000000..b870d82622
--- /dev/null
+++ b/modules/git/tests/repos/repo1_bare_sha256/HEAD
@@ -0,0 +1 @@
+ref: refs/heads/main
diff --git a/modules/git/tests/repos/repo1_bare_sha256/config b/modules/git/tests/repos/repo1_bare_sha256/config
new file mode 100644
index 0000000000..2388a50b2f
--- /dev/null
+++ b/modules/git/tests/repos/repo1_bare_sha256/config
@@ -0,0 +1,6 @@
+[core]
+	repositoryformatversion = 1
+	filemode = true
+	bare = true
+[extensions]
+	objectformat = sha256
diff --git a/modules/git/tests/repos/repo1_bare_sha256/description b/modules/git/tests/repos/repo1_bare_sha256/description
new file mode 100644
index 0000000000..498b267a8c
--- /dev/null
+++ b/modules/git/tests/repos/repo1_bare_sha256/description
@@ -0,0 +1 @@
+Unnamed repository; edit this file 'description' to name the repository.
diff --git a/modules/git/tests/repos/repo1_bare_sha256/info/exclude b/modules/git/tests/repos/repo1_bare_sha256/info/exclude
new file mode 100644
index 0000000000..a5196d1be8
--- /dev/null
+++ b/modules/git/tests/repos/repo1_bare_sha256/info/exclude
@@ -0,0 +1,6 @@
+# git ls-files --others --exclude-from=.git/info/exclude
+# Lines that start with '#' are comments.
+# For a project mostly in C, the following would be a good set of
+# exclude patterns (uncomment them if you want to use them):
+# *.[oa]
+# *~
diff --git a/modules/git/tests/repos/repo1_bare_sha256/info/refs b/modules/git/tests/repos/repo1_bare_sha256/info/refs
new file mode 100644
index 0000000000..b4de954582
--- /dev/null
+++ b/modules/git/tests/repos/repo1_bare_sha256/info/refs
@@ -0,0 +1,7 @@
+42e334efd04cd36eea6da0599913333c26116e1a537ca76e5b6e4af4dda00236	refs/heads/branch1
+5bc2249e32e0ba40a08879fba2bd4e97a13cb345831549f4bc5649525da8f6cc	refs/heads/branch2
+9433b2a62b964c17a4485ae180f45f595d3e69d31b786087775e28c6b6399df0	refs/heads/main
+29a82d4fc02e19190fb489cc90d5730ed91970b49f4e39acda2798b3dd4f814e	refs/tags/signed-tag
+9433b2a62b964c17a4485ae180f45f595d3e69d31b786087775e28c6b6399df0	refs/tags/signed-tag^{}
+171822a62559f3aa28a00aa3785dbe915d6a8eb02712682740db44fc8bd2187a	refs/tags/test
+6aae864a3d1d0d6a5be0cc64028c1e7021e2632b031fd8eb82afc5a283d1c3d1	refs/tags/test^{}
diff --git a/modules/git/tests/repos/repo1_bare_sha256/objects/info/commit-graph b/modules/git/tests/repos/repo1_bare_sha256/objects/info/commit-graph
new file mode 100644
index 0000000000..2985d3e436
--- /dev/null
+++ b/modules/git/tests/repos/repo1_bare_sha256/objects/info/commit-graph
diff --git a/modules/git/tests/repos/repo1_bare_sha256/objects/info/packs b/modules/git/tests/repos/repo1_bare_sha256/objects/info/packs
new file mode 100644
index 0000000000..c2d1bb88c5
--- /dev/null
+++ b/modules/git/tests/repos/repo1_bare_sha256/objects/info/packs
@@ -0,0 +1,2 @@
+P pack-c01aa121b9c5e345fe0da2f9be78665970b0c38c6b495d5fc034bc7a7b95334b.pack
+
diff --git a/modules/git/tests/repos/repo1_bare_sha256/objects/pack/pack-c01aa121b9c5e345fe0da2f9be78665970b0c38c6b495d5fc034bc7a7b95334b.bitmap b/modules/git/tests/repos/repo1_bare_sha256/objects/pack/pack-c01aa121b9c5e345fe0da2f9be78665970b0c38c6b495d5fc034bc7a7b95334b.bitmap
new file mode 100644
index 0000000000..535ba168c7
--- /dev/null
+++ b/modules/git/tests/repos/repo1_bare_sha256/objects/pack/pack-c01aa121b9c5e345fe0da2f9be78665970b0c38c6b495d5fc034bc7a7b95334b.bitmap
diff --git a/modules/git/tests/repos/repo1_bare_sha256/objects/pack/pack-c01aa121b9c5e345fe0da2f9be78665970b0c38c6b495d5fc034bc7a7b95334b.idx b/modules/git/tests/repos/repo1_bare_sha256/objects/pack/pack-c01aa121b9c5e345fe0da2f9be78665970b0c38c6b495d5fc034bc7a7b95334b.idx
new file mode 100644
index 0000000000..ab45b6f312
--- /dev/null
+++ b/modules/git/tests/repos/repo1_bare_sha256/objects/pack/pack-c01aa121b9c5e345fe0da2f9be78665970b0c38c6b495d5fc034bc7a7b95334b.idx
diff --git a/modules/git/tests/repos/repo1_bare_sha256/objects/pack/pack-c01aa121b9c5e345fe0da2f9be78665970b0c38c6b495d5fc034bc7a7b95334b.pack b/modules/git/tests/repos/repo1_bare_sha256/objects/pack/pack-c01aa121b9c5e345fe0da2f9be78665970b0c38c6b495d5fc034bc7a7b95334b.pack
new file mode 100644
index 0000000000..c77bf2024c
--- /dev/null
+++ b/modules/git/tests/repos/repo1_bare_sha256/objects/pack/pack-c01aa121b9c5e345fe0da2f9be78665970b0c38c6b495d5fc034bc7a7b95334b.pack
diff --git a/modules/git/tests/repos/repo1_bare_sha256/objects/pack/pack-c01aa121b9c5e345fe0da2f9be78665970b0c38c6b495d5fc034bc7a7b95334b.rev b/modules/git/tests/repos/repo1_bare_sha256/objects/pack/pack-c01aa121b9c5e345fe0da2f9be78665970b0c38c6b495d5fc034bc7a7b95334b.rev
new file mode 100644
index 0000000000..d24fd8e9ce
--- /dev/null
+++ b/modules/git/tests/repos/repo1_bare_sha256/objects/pack/pack-c01aa121b9c5e345fe0da2f9be78665970b0c38c6b495d5fc034bc7a7b95334b.rev
diff --git a/modules/git/tests/repos/repo1_bare_sha256/packed-refs b/modules/git/tests/repos/repo1_bare_sha256/packed-refs
new file mode 100644
index 0000000000..36c92ce3ba
--- /dev/null
+++ b/modules/git/tests/repos/repo1_bare_sha256/packed-refs
@@ -0,0 +1,8 @@
+# pack-refs with: peeled fully-peeled sorted 
+42e334efd04cd36eea6da0599913333c26116e1a537ca76e5b6e4af4dda00236 refs/heads/branch1
+5bc2249e32e0ba40a08879fba2bd4e97a13cb345831549f4bc5649525da8f6cc refs/heads/branch2
+9433b2a62b964c17a4485ae180f45f595d3e69d31b786087775e28c6b6399df0 refs/heads/main
+29a82d4fc02e19190fb489cc90d5730ed91970b49f4e39acda2798b3dd4f814e refs/tags/signed-tag
+^9433b2a62b964c17a4485ae180f45f595d3e69d31b786087775e28c6b6399df0
+171822a62559f3aa28a00aa3785dbe915d6a8eb02712682740db44fc8bd2187a refs/tags/test
+^6aae864a3d1d0d6a5be0cc64028c1e7021e2632b031fd8eb82afc5a283d1c3d1
diff --git a/modules/git/tests/repos/repo1_bare_sha256/refs/heads/main b/modules/git/tests/repos/repo1_bare_sha256/refs/heads/main
new file mode 100644
index 0000000000..b09fd5c560
--- /dev/null
+++ b/modules/git/tests/repos/repo1_bare_sha256/refs/heads/main
@@ -0,0 +1 @@
+9433b2a62b964c17a4485ae180f45f595d3e69d31b786087775e28c6b6399df0
diff --git a/modules/git/tests/repos/repo5_pulls_sha256/HEAD b/modules/git/tests/repos/repo5_pulls_sha256/HEAD
new file mode 100644
index 0000000000..b870d82622
--- /dev/null
+++ b/modules/git/tests/repos/repo5_pulls_sha256/HEAD
@@ -0,0 +1 @@
+ref: refs/heads/main
diff --git a/modules/git/tests/repos/repo5_pulls_sha256/config b/modules/git/tests/repos/repo5_pulls_sha256/config
new file mode 100644
index 0000000000..2388a50b2f
--- /dev/null
+++ b/modules/git/tests/repos/repo5_pulls_sha256/config
@@ -0,0 +1,6 @@
+[core]
+	repositoryformatversion = 1
+	filemode = true
+	bare = true
+[extensions]
+	objectformat = sha256
diff --git a/modules/git/tests/repos/repo5_pulls_sha256/description b/modules/git/tests/repos/repo5_pulls_sha256/description
new file mode 100644
index 0000000000..498b267a8c
--- /dev/null
+++ b/modules/git/tests/repos/repo5_pulls_sha256/description
@@ -0,0 +1 @@
+Unnamed repository; edit this file 'description' to name the repository.
diff --git a/modules/git/tests/repos/repo5_pulls_sha256/info/refs b/modules/git/tests/repos/repo5_pulls_sha256/info/refs
new file mode 100644
index 0000000000..454e45de2d
--- /dev/null
+++ b/modules/git/tests/repos/repo5_pulls_sha256/info/refs
@@ -0,0 +1,4 @@
+35ecd0f946c8baeb76fa5a3876f46bf35218655e2304d8505026fa4bfb496a4b	refs/heads/main
+35ecd0f946c8baeb76fa5a3876f46bf35218655e2304d8505026fa4bfb496a4b	refs/heads/main-clone
+7f50a4906503378b0bbb7d61bd2ca8d8d8ff4f7a2474980f99402d742ccc9665	refs/heads/test-patch-1
+1e35a51dc00fd7de730344c07061acfe80e8117e075ac979b6a29a3a045190ca	refs/tags/v0.9.99
diff --git a/modules/git/tests/repos/repo5_pulls_sha256/objects/info/commit-graph b/modules/git/tests/repos/repo5_pulls_sha256/objects/info/commit-graph
new file mode 100644
index 0000000000..8e5ef41ad6
--- /dev/null
+++ b/modules/git/tests/repos/repo5_pulls_sha256/objects/info/commit-graph
diff --git a/modules/git/tests/repos/repo5_pulls_sha256/objects/info/packs b/modules/git/tests/repos/repo5_pulls_sha256/objects/info/packs
new file mode 100644
index 0000000000..6f51e7b9a8
--- /dev/null
+++ b/modules/git/tests/repos/repo5_pulls_sha256/objects/info/packs
@@ -0,0 +1,2 @@
+P pack-bfe8f09d42ef5dd1610bf42641fe145d4a02b788eb26c31022a362312660a29d.pack
+
diff --git a/modules/git/tests/repos/repo5_pulls_sha256/objects/pack/pack-bfe8f09d42ef5dd1610bf42641fe145d4a02b788eb26c31022a362312660a29d.bitmap b/modules/git/tests/repos/repo5_pulls_sha256/objects/pack/pack-bfe8f09d42ef5dd1610bf42641fe145d4a02b788eb26c31022a362312660a29d.bitmap
new file mode 100644
index 0000000000..38fca6e092
--- /dev/null
+++ b/modules/git/tests/repos/repo5_pulls_sha256/objects/pack/pack-bfe8f09d42ef5dd1610bf42641fe145d4a02b788eb26c31022a362312660a29d.bitmap
diff --git a/modules/git/tests/repos/repo5_pulls_sha256/objects/pack/pack-bfe8f09d42ef5dd1610bf42641fe145d4a02b788eb26c31022a362312660a29d.idx b/modules/git/tests/repos/repo5_pulls_sha256/objects/pack/pack-bfe8f09d42ef5dd1610bf42641fe145d4a02b788eb26c31022a362312660a29d.idx
new file mode 100644
index 0000000000..fd43d04e0a
--- /dev/null
+++ b/modules/git/tests/repos/repo5_pulls_sha256/objects/pack/pack-bfe8f09d42ef5dd1610bf42641fe145d4a02b788eb26c31022a362312660a29d.idx
diff --git a/modules/git/tests/repos/repo5_pulls_sha256/objects/pack/pack-bfe8f09d42ef5dd1610bf42641fe145d4a02b788eb26c31022a362312660a29d.pack b/modules/git/tests/repos/repo5_pulls_sha256/objects/pack/pack-bfe8f09d42ef5dd1610bf42641fe145d4a02b788eb26c31022a362312660a29d.pack
new file mode 100644
index 0000000000..689318da32
--- /dev/null
+++ b/modules/git/tests/repos/repo5_pulls_sha256/objects/pack/pack-bfe8f09d42ef5dd1610bf42641fe145d4a02b788eb26c31022a362312660a29d.pack
diff --git a/modules/git/tests/repos/repo5_pulls_sha256/objects/pack/pack-bfe8f09d42ef5dd1610bf42641fe145d4a02b788eb26c31022a362312660a29d.rev b/modules/git/tests/repos/repo5_pulls_sha256/objects/pack/pack-bfe8f09d42ef5dd1610bf42641fe145d4a02b788eb26c31022a362312660a29d.rev
new file mode 100644
index 0000000000..c0bac95376
--- /dev/null
+++ b/modules/git/tests/repos/repo5_pulls_sha256/objects/pack/pack-bfe8f09d42ef5dd1610bf42641fe145d4a02b788eb26c31022a362312660a29d.rev
diff --git a/modules/git/tests/repos/repo5_pulls_sha256/packed-refs b/modules/git/tests/repos/repo5_pulls_sha256/packed-refs
new file mode 100644
index 0000000000..1525083592
--- /dev/null
+++ b/modules/git/tests/repos/repo5_pulls_sha256/packed-refs
@@ -0,0 +1,5 @@
+# pack-refs with: peeled fully-peeled sorted 
+35ecd0f946c8baeb76fa5a3876f46bf35218655e2304d8505026fa4bfb496a4b refs/heads/main
+35ecd0f946c8baeb76fa5a3876f46bf35218655e2304d8505026fa4bfb496a4b refs/heads/main-clone
+7f50a4906503378b0bbb7d61bd2ca8d8d8ff4f7a2474980f99402d742ccc9665 refs/heads/test-patch-1
+1e35a51dc00fd7de730344c07061acfe80e8117e075ac979b6a29a3a045190ca refs/tags/v0.9.99
diff --git a/modules/git/tests/repos/repo5_pulls_sha256/refs/heads/main b/modules/git/tests/repos/repo5_pulls_sha256/refs/heads/main
new file mode 100644
index 0000000000..9b32e79e93
--- /dev/null
+++ b/modules/git/tests/repos/repo5_pulls_sha256/refs/heads/main
@@ -0,0 +1 @@
+35ecd0f946c8baeb76fa5a3876f46bf35218655e2304d8505026fa4bfb496a4b
diff --git a/modules/git/tests/repos/repo6_blame_sha256/HEAD b/modules/git/tests/repos/repo6_blame_sha256/HEAD
new file mode 100644
index 0000000000..b870d82622
--- /dev/null
+++ b/modules/git/tests/repos/repo6_blame_sha256/HEAD
@@ -0,0 +1 @@
+ref: refs/heads/main
diff --git a/modules/git/tests/repos/repo6_blame_sha256/config b/modules/git/tests/repos/repo6_blame_sha256/config
new file mode 100644
index 0000000000..2388a50b2f
--- /dev/null
+++ b/modules/git/tests/repos/repo6_blame_sha256/config
@@ -0,0 +1,6 @@
+[core]
+	repositoryformatversion = 1
+	filemode = true
+	bare = true
+[extensions]
+	objectformat = sha256
diff --git a/modules/git/tests/repos/repo6_blame_sha256/description b/modules/git/tests/repos/repo6_blame_sha256/description
new file mode 100644
index 0000000000..498b267a8c
--- /dev/null
+++ b/modules/git/tests/repos/repo6_blame_sha256/description
@@ -0,0 +1 @@
+Unnamed repository; edit this file 'description' to name the repository.
diff --git a/modules/git/tests/repos/repo6_blame_sha256/info/exclude b/modules/git/tests/repos/repo6_blame_sha256/info/exclude
new file mode 100644
index 0000000000..a5196d1be8
--- /dev/null
+++ b/modules/git/tests/repos/repo6_blame_sha256/info/exclude
@@ -0,0 +1,6 @@
+# git ls-files --others --exclude-from=.git/info/exclude
+# Lines that start with '#' are comments.
+# For a project mostly in C, the following would be a good set of
+# exclude patterns (uncomment them if you want to use them):
+# *.[oa]
+# *~
diff --git a/modules/git/tests/repos/repo6_blame_sha256/info/refs b/modules/git/tests/repos/repo6_blame_sha256/info/refs
new file mode 100644
index 0000000000..bee6d1dce3
--- /dev/null
+++ b/modules/git/tests/repos/repo6_blame_sha256/info/refs
@@ -0,0 +1 @@
+e2f5660e15159082902960af0ed74fc144921d2b0c80e069361853b3ece29ba3	refs/heads/main
diff --git a/modules/git/tests/repos/repo6_blame_sha256/objects/info/commit-graph b/modules/git/tests/repos/repo6_blame_sha256/objects/info/commit-graph
new file mode 100644
index 0000000000..f963aa049d
--- /dev/null
+++ b/modules/git/tests/repos/repo6_blame_sha256/objects/info/commit-graph
diff --git a/modules/git/tests/repos/repo6_blame_sha256/objects/info/packs b/modules/git/tests/repos/repo6_blame_sha256/objects/info/packs
new file mode 100644
index 0000000000..73744cf8f7
--- /dev/null
+++ b/modules/git/tests/repos/repo6_blame_sha256/objects/info/packs
@@ -0,0 +1,2 @@
+P pack-fcb8a221b76025fd8415d3c562b611ac24312a5ffc3d3703d7c5cc906bdaee8e.pack
+
diff --git a/modules/git/tests/repos/repo6_blame_sha256/objects/pack/pack-fcb8a221b76025fd8415d3c562b611ac24312a5ffc3d3703d7c5cc906bdaee8e.bitmap b/modules/git/tests/repos/repo6_blame_sha256/objects/pack/pack-fcb8a221b76025fd8415d3c562b611ac24312a5ffc3d3703d7c5cc906bdaee8e.bitmap
new file mode 100644
index 0000000000..c34487c53a
--- /dev/null
+++ b/modules/git/tests/repos/repo6_blame_sha256/objects/pack/pack-fcb8a221b76025fd8415d3c562b611ac24312a5ffc3d3703d7c5cc906bdaee8e.bitmap
diff --git a/modules/git/tests/repos/repo6_blame_sha256/objects/pack/pack-fcb8a221b76025fd8415d3c562b611ac24312a5ffc3d3703d7c5cc906bdaee8e.idx b/modules/git/tests/repos/repo6_blame_sha256/objects/pack/pack-fcb8a221b76025fd8415d3c562b611ac24312a5ffc3d3703d7c5cc906bdaee8e.idx
new file mode 100644
index 0000000000..faaee22ff4
--- /dev/null
+++ b/modules/git/tests/repos/repo6_blame_sha256/objects/pack/pack-fcb8a221b76025fd8415d3c562b611ac24312a5ffc3d3703d7c5cc906bdaee8e.idx
diff --git a/modules/git/tests/repos/repo6_blame_sha256/objects/pack/pack-fcb8a221b76025fd8415d3c562b611ac24312a5ffc3d3703d7c5cc906bdaee8e.pack b/modules/git/tests/repos/repo6_blame_sha256/objects/pack/pack-fcb8a221b76025fd8415d3c562b611ac24312a5ffc3d3703d7c5cc906bdaee8e.pack
new file mode 100644
index 0000000000..626f081398
--- /dev/null
+++ b/modules/git/tests/repos/repo6_blame_sha256/objects/pack/pack-fcb8a221b76025fd8415d3c562b611ac24312a5ffc3d3703d7c5cc906bdaee8e.pack
diff --git a/modules/git/tests/repos/repo6_blame_sha256/objects/pack/pack-fcb8a221b76025fd8415d3c562b611ac24312a5ffc3d3703d7c5cc906bdaee8e.rev b/modules/git/tests/repos/repo6_blame_sha256/objects/pack/pack-fcb8a221b76025fd8415d3c562b611ac24312a5ffc3d3703d7c5cc906bdaee8e.rev
new file mode 100644
index 0000000000..56175555cd
--- /dev/null
+++ b/modules/git/tests/repos/repo6_blame_sha256/objects/pack/pack-fcb8a221b76025fd8415d3c562b611ac24312a5ffc3d3703d7c5cc906bdaee8e.rev
diff --git a/modules/git/tests/repos/repo6_blame_sha256/packed-refs b/modules/git/tests/repos/repo6_blame_sha256/packed-refs
new file mode 100644
index 0000000000..644269299f
--- /dev/null
+++ b/modules/git/tests/repos/repo6_blame_sha256/packed-refs
@@ -0,0 +1,2 @@
+# pack-refs with: peeled fully-peeled sorted 
+e2f5660e15159082902960af0ed74fc144921d2b0c80e069361853b3ece29ba3 refs/heads/main
diff --git a/modules/git/tests/repos/repo6_blame_sha256/refs/refs/main b/modules/git/tests/repos/repo6_blame_sha256/refs/refs/main
new file mode 100644
index 0000000000..829662cdf5
--- /dev/null
+++ b/modules/git/tests/repos/repo6_blame_sha256/refs/refs/main
@@ -0,0 +1 @@
+e2f5660e15159082902960af0ed74fc144921d2b0c80e069361853b3ece29ba3
diff --git a/modules/git/tests/repos/repo6_merge_sha256/HEAD b/modules/git/tests/repos/repo6_merge_sha256/HEAD
new file mode 100644
index 0000000000..b870d82622
--- /dev/null
+++ b/modules/git/tests/repos/repo6_merge_sha256/HEAD
@@ -0,0 +1 @@
+ref: refs/heads/main
diff --git a/modules/git/tests/repos/repo6_merge_sha256/config b/modules/git/tests/repos/repo6_merge_sha256/config
new file mode 100644
index 0000000000..2388a50b2f
--- /dev/null
+++ b/modules/git/tests/repos/repo6_merge_sha256/config
@@ -0,0 +1,6 @@
+[core]
+	repositoryformatversion = 1
+	filemode = true
+	bare = true
+[extensions]
+	objectformat = sha256
diff --git a/modules/git/tests/repos/repo6_merge_sha256/description b/modules/git/tests/repos/repo6_merge_sha256/description
new file mode 100644
index 0000000000..498b267a8c
--- /dev/null
+++ b/modules/git/tests/repos/repo6_merge_sha256/description
@@ -0,0 +1 @@
+Unnamed repository; edit this file 'description' to name the repository.
diff --git a/modules/git/tests/repos/repo6_merge_sha256/info/exclude b/modules/git/tests/repos/repo6_merge_sha256/info/exclude
new file mode 100644
index 0000000000..a5196d1be8
--- /dev/null
+++ b/modules/git/tests/repos/repo6_merge_sha256/info/exclude
@@ -0,0 +1,6 @@
+# git ls-files --others --exclude-from=.git/info/exclude
+# Lines that start with '#' are comments.
+# For a project mostly in C, the following would be a good set of
+# exclude patterns (uncomment them if you want to use them):
+# *.[oa]
+# *~
diff --git a/modules/git/tests/repos/repo6_merge_sha256/info/refs b/modules/git/tests/repos/repo6_merge_sha256/info/refs
new file mode 100644
index 0000000000..7dae8a1be7
--- /dev/null
+++ b/modules/git/tests/repos/repo6_merge_sha256/info/refs
@@ -0,0 +1,4 @@
+d2e5609f630dd8db500f5298d05d16def282412e3e66ed68cc7d0833b29129a1	refs/heads/main
+b45258e9823233edea2d40d183742f29630e1e69300479fb4a55eabfe9b1d8bf	refs/heads/merge/add_file
+ff2b996e2fa366146300e4c9e51ccb6818147b360e46fa1437334f4a690955ce	refs/heads/merge/modify_file
+da1ded40dc8e5b7c564171f4bf2fc8370487decfb1cb6a99ef28f3ed73d09172	refs/heads/merge/remove_file
diff --git a/modules/git/tests/repos/repo6_merge_sha256/objects/info/commit-graph b/modules/git/tests/repos/repo6_merge_sha256/objects/info/commit-graph
new file mode 100644
index 0000000000..98068475e8
--- /dev/null
+++ b/modules/git/tests/repos/repo6_merge_sha256/objects/info/commit-graph
diff --git a/modules/git/tests/repos/repo6_merge_sha256/objects/info/packs b/modules/git/tests/repos/repo6_merge_sha256/objects/info/packs
new file mode 100644
index 0000000000..f3cf8197ce
--- /dev/null
+++ b/modules/git/tests/repos/repo6_merge_sha256/objects/info/packs
@@ -0,0 +1,3 @@
+P pack-2fff0848f8d8eab8f7902ac91ab6a096c7530f577d5c0a79c63d9ac2b44f7510.pack
+P pack-65162b86afdbac3c566696d487e67bb2a4a5501ca1fa3528fad8a9474fba7e50.pack
+
diff --git a/modules/git/tests/repos/repo6_merge_sha256/objects/pack/pack-2fff0848f8d8eab8f7902ac91ab6a096c7530f577d5c0a79c63d9ac2b44f7510.bitmap b/modules/git/tests/repos/repo6_merge_sha256/objects/pack/pack-2fff0848f8d8eab8f7902ac91ab6a096c7530f577d5c0a79c63d9ac2b44f7510.bitmap
new file mode 100644
index 0000000000..d1624a0780
--- /dev/null
+++ b/modules/git/tests/repos/repo6_merge_sha256/objects/pack/pack-2fff0848f8d8eab8f7902ac91ab6a096c7530f577d5c0a79c63d9ac2b44f7510.bitmap
diff --git a/modules/git/tests/repos/repo6_merge_sha256/objects/pack/pack-2fff0848f8d8eab8f7902ac91ab6a096c7530f577d5c0a79c63d9ac2b44f7510.idx b/modules/git/tests/repos/repo6_merge_sha256/objects/pack/pack-2fff0848f8d8eab8f7902ac91ab6a096c7530f577d5c0a79c63d9ac2b44f7510.idx
new file mode 100644
index 0000000000..09b897d2db
--- /dev/null
+++ b/modules/git/tests/repos/repo6_merge_sha256/objects/pack/pack-2fff0848f8d8eab8f7902ac91ab6a096c7530f577d5c0a79c63d9ac2b44f7510.idx
diff --git a/modules/git/tests/repos/repo6_merge_sha256/objects/pack/pack-2fff0848f8d8eab8f7902ac91ab6a096c7530f577d5c0a79c63d9ac2b44f7510.pack b/modules/git/tests/repos/repo6_merge_sha256/objects/pack/pack-2fff0848f8d8eab8f7902ac91ab6a096c7530f577d5c0a79c63d9ac2b44f7510.pack
new file mode 100644
index 0000000000..3b406be93f
--- /dev/null
+++ b/modules/git/tests/repos/repo6_merge_sha256/objects/pack/pack-2fff0848f8d8eab8f7902ac91ab6a096c7530f577d5c0a79c63d9ac2b44f7510.pack
diff --git a/modules/git/tests/repos/repo6_merge_sha256/objects/pack/pack-2fff0848f8d8eab8f7902ac91ab6a096c7530f577d5c0a79c63d9ac2b44f7510.rev b/modules/git/tests/repos/repo6_merge_sha256/objects/pack/pack-2fff0848f8d8eab8f7902ac91ab6a096c7530f577d5c0a79c63d9ac2b44f7510.rev
new file mode 100644
index 0000000000..4a695fc2e5
--- /dev/null
+++ b/modules/git/tests/repos/repo6_merge_sha256/objects/pack/pack-2fff0848f8d8eab8f7902ac91ab6a096c7530f577d5c0a79c63d9ac2b44f7510.rev
diff --git a/modules/git/tests/repos/repo6_merge_sha256/objects/pack/pack-65162b86afdbac3c566696d487e67bb2a4a5501ca1fa3528fad8a9474fba7e50.idx b/modules/git/tests/repos/repo6_merge_sha256/objects/pack/pack-65162b86afdbac3c566696d487e67bb2a4a5501ca1fa3528fad8a9474fba7e50.idx
new file mode 100644
index 0000000000..3b58342e68
--- /dev/null
+++ b/modules/git/tests/repos/repo6_merge_sha256/objects/pack/pack-65162b86afdbac3c566696d487e67bb2a4a5501ca1fa3528fad8a9474fba7e50.idx
diff --git a/modules/git/tests/repos/repo6_merge_sha256/objects/pack/pack-65162b86afdbac3c566696d487e67bb2a4a5501ca1fa3528fad8a9474fba7e50.mtimes b/modules/git/tests/repos/repo6_merge_sha256/objects/pack/pack-65162b86afdbac3c566696d487e67bb2a4a5501ca1fa3528fad8a9474fba7e50.mtimes
new file mode 100644
index 0000000000..a669a06e27
--- /dev/null
+++ b/modules/git/tests/repos/repo6_merge_sha256/objects/pack/pack-65162b86afdbac3c566696d487e67bb2a4a5501ca1fa3528fad8a9474fba7e50.mtimes
diff --git a/modules/git/tests/repos/repo6_merge_sha256/objects/pack/pack-65162b86afdbac3c566696d487e67bb2a4a5501ca1fa3528fad8a9474fba7e50.pack b/modules/git/tests/repos/repo6_merge_sha256/objects/pack/pack-65162b86afdbac3c566696d487e67bb2a4a5501ca1fa3528fad8a9474fba7e50.pack
new file mode 100644
index 0000000000..a28808ee11
--- /dev/null
+++ b/modules/git/tests/repos/repo6_merge_sha256/objects/pack/pack-65162b86afdbac3c566696d487e67bb2a4a5501ca1fa3528fad8a9474fba7e50.pack
diff --git a/modules/git/tests/repos/repo6_merge_sha256/objects/pack/pack-65162b86afdbac3c566696d487e67bb2a4a5501ca1fa3528fad8a9474fba7e50.rev b/modules/git/tests/repos/repo6_merge_sha256/objects/pack/pack-65162b86afdbac3c566696d487e67bb2a4a5501ca1fa3528fad8a9474fba7e50.rev
new file mode 100644
index 0000000000..c09bb3203b
--- /dev/null
+++ b/modules/git/tests/repos/repo6_merge_sha256/objects/pack/pack-65162b86afdbac3c566696d487e67bb2a4a5501ca1fa3528fad8a9474fba7e50.rev
diff --git a/modules/git/tests/repos/repo6_merge_sha256/packed-refs b/modules/git/tests/repos/repo6_merge_sha256/packed-refs
new file mode 100644
index 0000000000..b906893c52
--- /dev/null
+++ b/modules/git/tests/repos/repo6_merge_sha256/packed-refs
@@ -0,0 +1,5 @@
+# pack-refs with: peeled fully-peeled sorted 
+d2e5609f630dd8db500f5298d05d16def282412e3e66ed68cc7d0833b29129a1 refs/heads/main
+b45258e9823233edea2d40d183742f29630e1e69300479fb4a55eabfe9b1d8bf refs/heads/merge/add_file
+ff2b996e2fa366146300e4c9e51ccb6818147b360e46fa1437334f4a690955ce refs/heads/merge/modify_file
+da1ded40dc8e5b7c564171f4bf2fc8370487decfb1cb6a99ef28f3ed73d09172 refs/heads/merge/remove_file
diff --git a/modules/git/tests/repos/repo6_merge_sha256/refs/heads/main b/modules/git/tests/repos/repo6_merge_sha256/refs/heads/main
new file mode 100644
index 0000000000..c8c02921e1
--- /dev/null
+++ b/modules/git/tests/repos/repo6_merge_sha256/refs/heads/main
@@ -0,0 +1 @@
+d2e5609f630dd8db500f5298d05d16def282412e3e66ed68cc7d0833b29129a1