Fix cloning of add-on store repository (#5701)

* Fix cloning of add-on store repository

Since #5669, the add-on store reset no longer deletes the root
directory. However, if the root directory is not present, the current
code no longer invokes cloning, instead tries to load the git
repository directly.

With this change, the code clones whenever there is no .git directory,
which works for both cases.

* Fix pytest

supervisor/store/git.py

@@ -49,7 +49,7 @@ def branch(self) -> str:
 
     async def load(self) -> None:
         """Init Git add-on repository."""
-        if not self.path.is_dir():
+        if not (self.path / ".git").is_dir():
             await self.clone()
             return
 

tests/store/test_repository_git.py

@@ -67,17 +67,30 @@ async def test_git_clone_error(
 
 async def test_git_load(coresys: CoreSys, tmp_path: Path):
     """Test git load."""
-    repo = GitRepo(coresys, tmp_path, REPO_URL)
+    repo_dir = tmp_path / "repo"
+    repo = GitRepo(coresys, repo_dir, REPO_URL)
+    repo.clone = AsyncMock()
 
-    with (
-        patch("pathlib.Path.is_dir", return_value=True),
-        patch.object(
-            GitRepo, "sys_run_in_executor", new_callable=AsyncMock
-        ) as run_in_executor,
-    ):
-        await repo.load()
+    # Test with non-existing git repo root directory
+    await repo.load()
+    assert repo.clone.call_count == 1
+
+    repo.clone.reset_mock()
 
-        assert run_in_executor.call_count == 2
+    # Test with existing git repo root directory, but empty
+    repo_dir.mkdir()
+    await repo.load()
+    assert repo.clone.call_count == 1
+
+    repo.clone.reset_mock()
+
+    # Pretend we have a repo
+    (repo_dir / ".git").mkdir()
+
+    with patch("git.Repo") as mock_repo:
+        await repo.load()
+        assert repo.clone.call_count == 0
+        assert mock_repo.call_count == 1
 
 
 @pytest.mark.parametrize(
@@ -87,21 +100,22 @@ async def test_git_load(coresys: CoreSys, tmp_path: Path):
         NoSuchPathError(),
         GitCommandError("init"),
         UnicodeDecodeError("decode", b"", 0, 0, ""),
-        [AsyncMock(), GitCommandError("fsck")],
+        GitCommandError("fsck"),
     ],
 )
 async def test_git_load_error(coresys: CoreSys, tmp_path: Path, git_errors: Exception):
     """Test git load error."""
+    coresys.hardware.disk.get_disk_free_space = lambda x: 5000
     repo = GitRepo(coresys, tmp_path, REPO_URL)
 
+    # Pretend we have a repo
+    (tmp_path / ".git").mkdir()
+
     with (
-        patch("pathlib.Path.is_dir", return_value=True),
-        patch.object(
-            GitRepo, "sys_run_in_executor", new_callable=AsyncMock
-        ) as run_in_executor,
+        patch("git.Repo") as mock_repo,
         pytest.raises(StoreGitError),
     ):
-        run_in_executor.side_effect = git_errors
+        mock_repo.side_effect = git_errors
         await repo.load()
 
     assert len(coresys.resolution.suggestions) == 0