Fix find_distributions with non-empty context

src/pyproject_hooks/_in_process/_in_process.py

@@ -112,7 +112,8 @@ def find_distributions(self, context=None):
             # Delayed import: Python 3.7 does not contain importlib.metadata
             from importlib.metadata import DistributionFinder, MetadataPathFinder
 
-            context = DistributionFinder.Context(path=self.backend_path)
+            name = context.name if context else None
+            context = DistributionFinder.Context(name=name, path=self.backend_path)
             return MetadataPathFinder.find_distributions(context=context)
 
 

tests/samples/distribution_mismatch/backend/_pkg-0.0.1.dist-info/METADATA

@@ -0,0 +1,2 @@
+Name: _pkg
+Version: 0.0.1

tests/samples/distribution_mismatch/backend/intree_backend.py

@@ -0,0 +1,6 @@
+from importlib.metadata import distribution
+
+
+def get_requires_for_build_sdist(config_settings):
+    dist = distribution("setuptools")  # not present in backend-path
+    return [dist.version]

tests/samples/distribution_mismatch/pyproject.toml

@@ -0,0 +1,3 @@
+[build-system]
+build-backend = 'intree_backend'
+backend-path = ['backend']

tests/test_inplace_hooks.py

@@ -100,6 +100,13 @@ def test_intree_backend_importlib_metadata_interoperation():
     ]
 
 
+def test_distribution_mismatch():
+    pytest.importorskip("importlib.metadata")
+
+    hooks = get_hooks("distribution_mismatch")
+    assert hooks.get_requires_for_build_sdist({}) != ["0.0.1"]
+
+
 def install_finder_with_sitecustomize(directory, mapping):
     finder = f"""
         import sys