From 5a68e821f27c44e54ba0815f79ae29cca696b1bb Mon Sep 17 00:00:00 2001
From: skshetry <18718008+skshetry@users.noreply.github.com>
Date: Mon, 21 Jul 2025 11:59:27 +0545
Subject: [PATCH] stop using gitpython in tests (#10808)

---
 tests/dir_helpers.py                       |  5 +++--
 tests/func/experiments/test_experiments.py |  4 ++--
 tests/func/experiments/test_queue.py       |  2 +-
 tests/func/experiments/test_remote.py      |  7 +++----
 tests/func/experiments/test_save.py        |  2 +-
 tests/func/experiments/test_show.py        |  6 +++---
 tests/func/test_checkout.py                |  3 ++-
 tests/func/test_import.py                  | 10 ++++++----
 tests/func/test_install.py                 |  5 +++--
 tests/func/test_repo.py                    |  7 +++++--
 tests/func/test_scm.py                     |  5 ++---
 tests/func/test_status.py                  |  4 ++--
 tests/func/test_update.py                  |  6 +++---
 tests/unit/repo/experiments/test_utils.py  |  2 +-
 tests/unit/utils/test_studio.py            |  4 +++-
 15 files changed, 40 insertions(+), 32 deletions(-)

diff --git a/tests/dir_helpers.py b/tests/dir_helpers.py
index ac6e92d91..b63d9edd4 100644
--- a/tests/dir_helpers.py
+++ b/tests/dir_helpers.py
@@ -46,6 +46,7 @@ from global repo template to creating everything inplace, which:
 import os
 
 import pytest
+from dulwich.porcelain import remote_add as git_remote_add
 
 __all__ = [
     "erepo_dir",
@@ -96,7 +97,7 @@ class GitRemote:
 def git_upstream(tmp_dir, erepo_dir, git_dir, request):
     remote = erepo_dir if "dvc" in request.fixturenames else git_dir
     url = f"file://{remote.resolve().as_posix()}"
-    tmp_dir.scm.gitpython.repo.create_remote("upstream", url)
+    git_remote_add(tmp_dir, "upstream", url)
     return GitRemote(remote, "upstream", url)
 
 
@@ -104,5 +105,5 @@ def git_upstream(tmp_dir, erepo_dir, git_dir, request):
 def git_downstream(tmp_dir, erepo_dir, git_dir, request):
     remote = erepo_dir if "dvc" in request.fixturenames else git_dir
     url = f"file://{tmp_dir.resolve().as_posix()}"
-    remote.scm.gitpython.repo.create_remote("upstream", url)
+    git_remote_add(remote, "upstream", url)
     return GitRemote(remote, "upstream", url)
diff --git a/tests/func/experiments/test_experiments.py b/tests/func/experiments/test_experiments.py
index df7bd5215..69ab6ba1b 100644
--- a/tests/func/experiments/test_experiments.py
+++ b/tests/func/experiments/test_experiments.py
@@ -227,7 +227,7 @@ def test_detached_parent(tmp_dir, scm, dvc, exp_stage, mocker):
     scm.commit("v2")
 
     scm.checkout(detached_rev)
-    assert scm.gitpython.repo.head.is_detached
+    assert scm.pygit2.repo.head_is_detached
     results = dvc.experiments.run(exp_stage.addressing, params=["foo=3"])
 
     exp_rev = first(results)
@@ -792,4 +792,4 @@ def test_custom_commit_message(tmp_dir, scm, dvc, tmp):
             stage.addressing, tmp_dir=tmp, message="custom commit message"
         )
     )
-    assert scm.gitpython.repo.commit(exp).message == "custom commit message"
+    assert scm.resolve_commit(exp).message == "custom commit message"
diff --git a/tests/func/experiments/test_queue.py b/tests/func/experiments/test_queue.py
index 889dd92cf..5a32668e2 100644
--- a/tests/func/experiments/test_queue.py
+++ b/tests/func/experiments/test_queue.py
@@ -61,4 +61,4 @@ def test_custom_commit_message_queue(tmp_dir, scm, dvc):
     dvc.experiments.run(stage.addressing, queue=True, message="custom commit message")
 
     exp = first(dvc.experiments.run(run_all=True))
-    assert scm.gitpython.repo.commit(exp).message == "custom commit message"
+    assert scm.resolve_commit(exp).message == "custom commit message"
diff --git a/tests/func/experiments/test_remote.py b/tests/func/experiments/test_remote.py
index a1fbb9047..0412f3156 100644
--- a/tests/func/experiments/test_remote.py
+++ b/tests/func/experiments/test_remote.py
@@ -1,6 +1,7 @@
 import logging
 
 import pytest
+from dulwich.porcelain import pull as git_pull
 from funcy import first
 
 from dvc.repo.experiments.utils import exp_refs_by_rev
@@ -180,10 +181,8 @@ def test_list_remote(tmp_dir, scm, dvc, git_downstream, exp_stage, use_url):
 def test_pull(tmp_dir, scm, dvc, git_downstream, exp_stage, use_url):
     from dvc.exceptions import InvalidArgumentError
 
-    # fetch and checkout to downstream so both repos start from same commit
-    downstream_repo = git_downstream.tmp_dir.scm.gitpython.repo
-    fetched = downstream_repo.remote(git_downstream.remote).fetch()
-    downstream_repo.git.checkout(fetched)
+    # pull to downstream so both repos start from same commit
+    git_pull(git_downstream.tmp_dir, "upstream")
 
     remote = git_downstream.url if use_url else git_downstream.remote
     downstream_exp = git_downstream.tmp_dir.dvc.experiments
diff --git a/tests/func/experiments/test_save.py b/tests/func/experiments/test_save.py
index bc8cc2d59..9fe7715c0 100644
--- a/tests/func/experiments/test_save.py
+++ b/tests/func/experiments/test_save.py
@@ -165,7 +165,7 @@ def test_exp_save_custom_message(tmp_dir, dvc, scm):
     setup_stage(tmp_dir, dvc, scm)
 
     exp = dvc.experiments.save(message="custom commit message")
-    assert scm.gitpython.repo.commit(exp).message == "custom commit message"
+    assert scm.resolve_commit(exp).message == "custom commit message"
 
 
 def test_exp_save_target(tmp_dir, dvc, scm):
diff --git a/tests/func/experiments/test_show.py b/tests/func/experiments/test_show.py
index 54ef4ba6d..eeb31955f 100644
--- a/tests/func/experiments/test_show.py
+++ b/tests/func/experiments/test_show.py
@@ -102,7 +102,7 @@ def test_show_simple(tmp_dir, scm, dvc, exp_stage):
 def test_show_experiment(tmp_dir, scm, dvc, exp_stage, workspace):
     baseline_rev = scm.get_rev()
     timestamp = datetime.fromtimestamp(  # noqa: DTZ006
-        scm.gitpython.repo.rev_parse(baseline_rev).committed_date
+        scm.resolve_commit(baseline_rev).commit_time
     )
 
     exp_rev = first(
@@ -424,7 +424,7 @@ def test_show_csv(tmp_dir, scm, dvc, exp_stage, capsys):
 
     def _get_rev_isotimestamp(rev):
         return datetime.fromtimestamp(  # noqa: DTZ006
-            scm.gitpython.repo.rev_parse(rev).committed_date
+            scm.resolve_commit(rev).commit_time
         ).isoformat()
 
     result1 = dvc.experiments.run(exp_stage.addressing, params=["foo=2"])
@@ -653,7 +653,7 @@ def test_metrics_renaming(tmp_dir, dvc, scm, capsys, copy_script):
 
     def _get_rev_isotimestamp(rev):
         return datetime.fromtimestamp(  # noqa: DTZ006
-            scm.gitpython.repo.rev_parse(rev).committed_date
+            scm.resolve_commit(rev).commit_time
         ).isoformat()
 
     assert f",master,baseline,{_get_rev_isotimestamp(scores_rev)},,1,,1" in cap.out
diff --git a/tests/func/test_checkout.py b/tests/func/test_checkout.py
index 3608d362f..bf59f557b 100644
--- a/tests/func/test_checkout.py
+++ b/tests/func/test_checkout.py
@@ -5,6 +5,7 @@ import stat
 import textwrap
 
 import pytest
+from dulwich.porcelain import remove as git_rm
 
 from dvc.cli import main
 from dvc.dvcfile import PROJECT_FILE, load_file
@@ -379,7 +380,7 @@ def test_stats_on_checkout(tmp_dir, dvc, scm):
 
     tmp_dir.gen({"lorem": "lorem", "bar": "new bar", "dir2": {"file": "file"}})
     (tmp_dir / "foo").unlink()
-    scm.gitpython.repo.git.rm("foo.dvc")
+    git_rm(tmp_dir, ["foo.dvc"])
     tmp_dir.dvc_add(["bar", "lorem", "dir2"], commit="second")
 
     scm.checkout("HEAD~")
diff --git a/tests/func/test_import.py b/tests/func/test_import.py
index cd4189592..68b97d64c 100644
--- a/tests/func/test_import.py
+++ b/tests/func/test_import.py
@@ -2,6 +2,8 @@ import filecmp
 import os
 
 import pytest
+from dulwich.porcelain import push as git_push
+from dulwich.porcelain import remote_add as git_remote_add
 from funcy import first
 
 from dvc.cachemgr import CacheManager
@@ -352,8 +354,8 @@ def test_push_wildcard_from_bare_git_repo(
         )
     erepo_dir.dvc.push([os.path.join(os.fspath(erepo_dir), "dire*")], glob=True)
 
-    erepo_dir.scm.gitpython.repo.create_remote("origin", os.fspath(tmp_dir))
-    erepo_dir.scm.gitpython.repo.remote("origin").push("master")
+    git_remote_add(erepo_dir, "origin", os.fspath(tmp_dir))
+    git_push(erepo_dir, "origin")
 
     dvc_repo = make_tmp_dir("dvc-repo", scm=True, dvc=True)
     with dvc_repo.chdir():
@@ -435,8 +437,8 @@ def test_import_from_bare_git_repo(tmp_dir, make_tmp_dir, erepo_dir, local_cloud
         erepo_dir.dvc_gen({"foo": "foo"}, commit="initial")
     erepo_dir.dvc.push()
 
-    erepo_dir.scm.gitpython.repo.create_remote("origin", os.fspath(tmp_dir))
-    erepo_dir.scm.gitpython.repo.remote("origin").push("master")
+    git_remote_add(erepo_dir, "origin", os.fspath(tmp_dir))
+    git_push(erepo_dir, "origin", "master")
 
     dvc_repo = make_tmp_dir("dvc-repo", scm=True, dvc=True)
     with dvc_repo.chdir():
diff --git a/tests/func/test_install.py b/tests/func/test_install.py
index 00f902c6f..fa830e5c5 100644
--- a/tests/func/test_install.py
+++ b/tests/func/test_install.py
@@ -3,6 +3,7 @@ import pathlib
 import sys
 
 import pytest
+from dulwich.porcelain import remote_add as git_remote_add
 from git import GitCommandError
 
 from dvc.exceptions import DvcException
@@ -81,8 +82,8 @@ class TestInstall:
             storage_path / "files" / "md5" / file_checksum[:2] / file_checksum[2:]
         )
 
-        scm.gitpython.repo.clone(os.fspath(git_remote))
-        scm.gitpython.repo.create_remote("origin", os.fspath(git_remote))
+        scm.clone(os.fspath(tmp_dir), os.fspath(git_remote))
+        git_remote_add(tmp_dir, "origin", os.fspath(git_remote))
 
         dvc.install()
 
diff --git a/tests/func/test_repo.py b/tests/func/test_repo.py
index e37dbc977..8d804b026 100644
--- a/tests/func/test_repo.py
+++ b/tests/func/test_repo.py
@@ -1,5 +1,8 @@
 import os
 
+from dulwich.porcelain import push as git_push
+from dulwich.porcelain import remote_add as git_remote_add
+
 from dvc.cachemgr import CacheManager
 from dvc.dvcfile import LOCK_FILE, PROJECT_FILE
 from dvc.fs import system
@@ -19,8 +22,8 @@ def test_open_bare(tmp_dir, scm, dvc, tmp_path_factory):
     url = os.fspath(tmp_path_factory.mktemp("bare"))
     Git.init(url, bare=True).close()
 
-    scm.gitpython.repo.create_remote("origin", url)
-    scm.gitpython.repo.remote("origin").push("master")
+    git_remote_add(tmp_dir, "origin", url)
+    git_push(tmp_dir, "origin")
 
     with Repo.open(url) as repo:
         assert repo.scm.root_dir != url
diff --git a/tests/func/test_scm.py b/tests/func/test_scm.py
index b5cab8aea..24742fe27 100644
--- a/tests/func/test_scm.py
+++ b/tests/func/test_scm.py
@@ -1,7 +1,6 @@
 import os
 
 import pytest
-from git import Repo
 
 from dvc.scm import SCM, Git, NoSCM, SCMError, lfs_prefetch
 
@@ -11,7 +10,7 @@ def test_init_none(tmp_dir):
 
 
 def test_init_git(tmp_dir):
-    Repo.init(os.fspath(tmp_dir))
+    Git.init(os.fspath(tmp_dir))
     assert isinstance(SCM(os.fspath(tmp_dir)), Git)
 
 
@@ -21,7 +20,7 @@ def test_init_no_git(tmp_dir):
 
 
 def test_init_sub_dir(tmp_dir):
-    Repo.init(os.fspath(tmp_dir))
+    Git.init(os.fspath(tmp_dir))
     subdir = tmp_dir / "dir"
     subdir.mkdir()
 
diff --git a/tests/func/test_status.py b/tests/func/test_status.py
index 84964d6bf..6bb61f66f 100644
--- a/tests/func/test_status.py
+++ b/tests/func/test_status.py
@@ -1,6 +1,7 @@
 import os
 
 import pytest
+from dulwich.porcelain import remove as git_rm
 
 from dvc.cli import main
 from dvc.fs import localfs
@@ -63,8 +64,7 @@ def test_status_before_and_after_dvc_init(tmp_dir, dvc, git_dir):
 
     with git_dir.chdir():
         git_dir.init(dvc=True)
-        git_dir.scm.gitpython.repo.index.remove(["file"])
-        os.remove("file")
+        git_rm(git_dir, ["file"])
         git_dir.dvc_gen("file", "second version", commit="with dvc")
         new_rev = git_dir.scm.get_rev()
 
diff --git a/tests/func/test_update.py b/tests/func/test_update.py
index a5b7735e0..4e6d66877 100644
--- a/tests/func/test_update.py
+++ b/tests/func/test_update.py
@@ -1,6 +1,7 @@
 import os
 
 import pytest
+from dulwich.porcelain import remove as git_rm
 
 from dvc.dependency import base
 from dvc.dvcfile import load_file
@@ -89,7 +90,7 @@ def test_update_import_after_remote_updates_to_dvc(tmp_dir, dvc, erepo_dir):
 
     new_rev = None
     with erepo_dir.branch("branch", new=False), erepo_dir.chdir():
-        erepo_dir.scm.gitpython.repo.index.remove(["version"])
+        git_rm(erepo_dir, ["version"], cached=True)
         erepo_dir.dvc_gen("version", "updated", commit="upgrade to DVC tracking")
         new_rev = erepo_dir.scm.get_rev()
 
@@ -124,8 +125,7 @@ def test_update_before_and_after_dvc_init(tmp_dir, dvc, git_dir):
 
     with git_dir.chdir():
         git_dir.init(dvc=True)
-        git_dir.scm.gitpython.repo.index.remove(["file"])
-        os.remove("file")
+        git_rm(git_dir, ["file"])
         git_dir.dvc_gen("file", "second version", commit="with dvc")
         new_rev = git_dir.scm.get_rev()
 
diff --git a/tests/unit/repo/experiments/test_utils.py b/tests/unit/repo/experiments/test_utils.py
index 06659de38..1c36247c6 100644
--- a/tests/unit/repo/experiments/test_utils.py
+++ b/tests/unit/repo/experiments/test_utils.py
@@ -16,7 +16,7 @@ def commit_exp_ref(tmp_dir, scm, file="foo", contents="foo", name="foo"):
     tmp_dir.scm_gen(file, contents, commit="init")
     rev = scm.get_rev()
     ref = f"{EXPS_NAMESPACE}/ab/c123/{name}"
-    scm.gitpython.set_ref(ref, rev)
+    scm.dulwich.repo.refs[ref.encode("utf-8")] = rev.encode("utf-8")
     return ref, rev
 
 
diff --git a/tests/unit/utils/test_studio.py b/tests/unit/utils/test_studio.py
index cc9351ce8..bbf533227 100644
--- a/tests/unit/utils/test_studio.py
+++ b/tests/unit/utils/test_studio.py
@@ -1,6 +1,7 @@
 from urllib.parse import urljoin
 
 import pytest
+from dulwich.porcelain import remote_add as git_remote_add
 from requests import Response
 
 from dvc.env import (
@@ -85,7 +86,8 @@ def test_env_to_config():
     ],
 )
 def test_get_repo_url(dvc, scm, monkeypatch, exp_git_remote, repo_url):
-    scm.gitpython.repo.create_remote("origin", "git@url")
+    git_remote_add(scm.root_dir, "origin", "git@url")
+
     if exp_git_remote:
         monkeypatch.setenv(DVC_EXP_GIT_REMOTE, exp_git_remote)
     assert get_repo_url(dvc) == repo_url