feat: if caller folder is a buildable package folder, look for metada…

…ta also within the caller folder

version_query/py_query.py

@@ -29,10 +29,26 @@ def query_pkg_info(path: pathlib.Path) -> Version:
 
 def query_package_folder(path: pathlib.Path, search_parent_directories: bool = False) -> Version:
     """Get version from Python package folder."""
+    global_metadata_json_paths, global_pkg_info_paths = [], []
+    if path.joinpath('pyproject.toml').exists() or path.joinpath('setup.py').exists():
+        metadata_json_paths = list(path.glob('*.dist-info/metadata.json'))
+        pkg_info_paths = list(path.glob('*.egg-info/PKG-INFO'))
+        pkg_info_paths += list(path.glob('*.dist-info/METADATA'))
+        if len(metadata_json_paths) == 1 and not pkg_info_paths:
+            return query_metadata_json(metadata_json_paths[0])
+        if not metadata_json_paths and len(pkg_info_paths) == 1:
+            return query_pkg_info(pkg_info_paths[0])
+        _LOG.debug(
+            'in %s found pyproject.toml or setup.py, as well as'
+            ' %i JSON metadata: %s and %i PKG-INFO metadata: %s'
+            ' - unable to infer package metadata, continuing search',
+            path, len(metadata_json_paths), metadata_json_paths, len(pkg_info_paths),
+            pkg_info_paths)
+        global_metadata_json_paths.extend(metadata_json_paths)
+        global_pkg_info_paths.extend(pkg_info_paths)
     paths = [path]
     if search_parent_directories:
         paths += path.parents
-    global_metadata_json_paths, global_pkg_info_paths = [], []
     for pth in paths:
         metadata_json_paths = list(pth.parent.glob(f'{pth.name}*.dist-info/metadata.json'))
         pkg_info_paths = list(pth.parent.glob(f'{pth.name}*.egg-info/PKG-INFO'))