@@ -5,10 +5,14 @@
 
 __all__ = ["GitCmdObjectDB", "GitDB"]
 
-from gitdb.base import OInfo, OStream
+from subprocess import PIPE
+
+from gitdb.base import IStream, OInfo, OStream
 from gitdb.db import GitDB, LooseObjectDB
 from gitdb.exc import BadObject
+from gitdb.fun import stream_copy
 
+from git.compat import force_text
 from git.util import bin_to_hex, hex_to_bin
 from git.exc import GitCommandError
 
@@ -46,6 +50,25 @@ def stream(self, binsha: bytes) -> OStream:
         hexsha, typename, size, stream = self._git.stream_object_data(bin_to_hex(binsha))
         return OStream(hex_to_bin(hexsha), typename, size, stream)
 
+    def store(self, istream: IStream) -> IStream:
+        """Store an object using git itself."""
+        if istream.binsha is not None or self.ostream() is not None:
+            return super().store(istream)
+
+        proc = self._git.hash_object(
+            "-t", force_text(istream.type), "-w", "--stdin", "--literally", as_process=True, istream=PIPE
+        )
+        assert proc.stdin is not None
+        try:
+            stream_copy(istream.read, proc.stdin.write, istream.size, self.stream_chunk_size)
+        finally:
+            proc.stdin.close()
+        assert proc.stdout is not None
+        hexsha = proc.stdout.read().strip()
+        proc.wait()
+        istream.binsha = hex_to_bin(hexsha)
+        return istream
+
     # { Interface
 
     def partial_to_complete_sha_hex(self, partial_hexsha: str) -> bytes:
 
@@ -3,16 +3,30 @@
 # This module is part of GitPython and is released under the
 # 3-Clause BSD License: https://opensource.org/license/bsd-3-clause/
 
+from io import BytesIO
 import os.path as osp
+from unittest import mock
+
+from gitdb import IStream
+from gitdb.db import LooseObjectDB
+from gitdb.typ import str_blob_type
 
 from git.db import GitCmdObjectDB
 from git.exc import BadObject
 from git.util import bin_to_hex
 
-from test.lib import TestBase
+from test.lib import TestBase, with_rw_repo
 
 
 class TestDB(TestBase):
+    @with_rw_repo("HEAD")
+    def test_store_uses_hash_object(self, rw_repo):
+        data = b"hello world"
+        with mock.patch.object(LooseObjectDB, "store", side_effect=AssertionError("unexpected loose-object write")):
+            istream = rw_repo.odb.store(IStream(str_blob_type, len(data), BytesIO(data)))
+
+        assert rw_repo.odb.stream(istream.binsha).read() == data
+
     def test_base(self):
         gdb = GitCmdObjectDB(osp.join(self.rorepo.git_dir, "objects"), self.rorepo.git)
 
 
@@ -26,7 +26,7 @@
 from git.exc import UnsafeOptionError
 from git.objects.tag import TagObject
 import git.refs as refs
-from git.util import Actor
+from git.util import Actor, rmtree
 
 from test.lib import TestBase, requires_symlinks, with_rw_repo, PathLikeMock
 
@@ -43,6 +43,7 @@ def _repo_with_initial_commit(self, base_dir):
             yield repo
         finally:
             repo.git.clear_cache()
+            rmtree(repo_dir)
 
     def test_from_path(self):
         # Should be able to create any reference directly.