Fix for TypeError in Resolve Dependencies workflow (#22127)

* Fix for TypeError in Resolve Dependencies workflow

* Add test

Author: Kyle-Neale

.builders/tests/test_upload.py

@@ -373,3 +373,19 @@ def test_lockfile_generation(tmp_path, setup_targets_dir):
         linux_aarch64_lockfile = lockfile_map["linux-aarch64_3.12.txt"]
         assert linux_aarch64_lockfile == f'existing @ https://agent-int-packages.datadoghq.com/built/existing/existing-1.1.1-{frozen_timestamp}-cp312-cp312-manylinux2010_aarch64.whl#sha256=built-hash'
         assert len(lock_files) == 2
+
+
+def test_generate_lockfiles_accepts_string_path(tmp_path):
+
+    lockfile = {'linux-x86_64': ['dep @ https://example.com/dep.whl#sha256=abc', '']}
+
+    fake_deps_dir = tmp_path / ".deps"
+    fake_resolved_dir = fake_deps_dir / "resolved"
+    fake_deps_dir.mkdir()
+    fake_resolved_dir.mkdir()
+    (tmp_path / "targets").mkdir()
+
+    with mock.patch.object(upload, "RESOLUTION_DIR", fake_deps_dir), \
+         mock.patch.object(upload, "LOCK_FILE_DIR", fake_resolved_dir):
+        # Should not raise TypeError: unsupported operand type(s) for /: 'str' and 'str'
+        upload.generate_lockfiles(str(tmp_path / "targets"), lockfile)

.builders/upload.py

@@ -84,6 +84,7 @@ def _build_number_of_wheel_blob(wheel_path: Blob) -> int:
 
 
 def generate_lockfiles(targets_dir, lockfiles):
+    targets_dir = Path(targets_dir)
     LOCK_FILE_DIR.mkdir(parents=True, exist_ok=True)
     with RESOLUTION_DIR.joinpath('metadata.json').open('w', encoding='utf-8') as f:
         contents = json.dumps(