Resolve all path in Kedro

.gitignore

@@ -1,3 +1,5 @@
+
+tmp/
 # CMake
 cmake-build-debug/
 

kedro/framework/startup.py

@@ -1,8 +1,10 @@
 """This module provides metadata for a Kedro project."""
+from __future__ import annotations
+
 import os
 import sys
 from pathlib import Path
-from typing import NamedTuple, Union
+from typing import NamedTuple
 
 import toml
 
@@ -34,7 +36,7 @@ def _version_mismatch_error(kedro_init_version: str) -> str:
     )
 
 
-def _get_project_metadata(project_path: Union[str, Path]) -> ProjectMetadata:
+def _get_project_metadata(project_path: Path) -> ProjectMetadata:
     """Read project metadata from `<project_root>/pyproject.toml` config file,
     under the `[tool.kedro]` section.
 
@@ -50,7 +52,6 @@ def _get_project_metadata(project_path: Union[str, Path]) -> ProjectMetadata:
     Returns:
         A named tuple that contains project metadata.
     """
-    project_path = Path(project_path).expanduser().resolve()
     pyproject_toml = project_path / _PYPROJECT
 
     if not pyproject_toml.is_file():
@@ -144,10 +145,12 @@ def _add_src_to_path(source_dir: Path, project_path: Path) -> None:
         os.environ["PYTHONPATH"] = f"{str(source_dir)}{sep}{python_path}"
 
 
-def bootstrap_project(project_path: Path) -> ProjectMetadata:
+def bootstrap_project(project_path: str | Path) -> ProjectMetadata:
     """Run setup required at the beginning of the workflow
     when running in project mode, and return project metadata.
     """
+
+    project_path = Path(project_path).expanduser().resolve()
     metadata = _get_project_metadata(project_path)
     _add_src_to_path(metadata.source_dir, project_path)
     configure_project(metadata.package_name)

tests/framework/test_startup.py

@@ -70,7 +70,7 @@ def test_toml_invalid_format(self, tmp_path):
         toml_path.write_text("!!")  # Invalid TOML
         pattern = "Failed to parse 'pyproject.toml' file"
         with pytest.raises(RuntimeError, match=re.escape(pattern)):
-            _get_project_metadata(str(tmp_path))
+            _get_project_metadata(tmp_path)
 
     def test_valid_toml_file(self, mocker):
         mocker.patch.object(Path, "is_file", return_value=True)
@@ -275,6 +275,19 @@ def test_non_existent_source_path(self, tmp_path):
         with pytest.raises(NotADirectoryError, match=pattern):
             _validate_source_path(source_path, tmp_path.resolve())
 
+    @pytest.mark.parametrize(
+        "source_dir", [".", "src", "./src", "src/nested", "src/nested/nested"]
+    )
+    def test_symlink_source_path(self, tmp_path, source_dir):
+        source_path = (tmp_path / source_dir).resolve()
+        source_path.mkdir(parents=True, exist_ok=True)
+
+        fake_path = tmp_path / "../" / ".path_does_not_exist"
+        fake_path.symlink_to(source_path)
+
+        _validate_source_path(fake_path, tmp_path.resolve())
+        os.remove(fake_path)
+
 
 class TestBootstrapProject:
     def test_bootstrap_project(self, monkeypatch, tmp_path):