Use better qualified name for cpython extension module shared library

Shared library for a cpython extension module should be suffixed by
the value of the EXT_SUFFIX configuration variable from the sysconfig
module.

Fixes #24.

Author: anlambert

hatch_cpp/tests/test_projects.py

@@ -1,8 +1,9 @@
-from os import listdir
+import contextlib
+from os import listdir, remove
 from pathlib import Path
-from shutil import rmtree
 from subprocess import check_call
 from sys import modules, path, platform
+from sysconfig import get_config_var
 
 import pytest
 
@@ -24,9 +25,17 @@ class TestProject:
         ],
     )
     def test_basic(self, project):
+
+        suffix_ext = get_config_var("EXT_SUFFIX")
+
         # cleanup
-        rmtree(f"hatch_cpp/tests/{project}/project/extension.so", ignore_errors=True)
-        rmtree(f"hatch_cpp/tests/{project}/project/extension.pyd", ignore_errors=True)
+        with contextlib.suppress(FileNotFoundError):
+            remove(f"hatch_cpp/tests/{project}/project/extension.so")
+        with contextlib.suppress(FileNotFoundError):
+            remove(f"hatch_cpp/tests/{project}/project/extension.pyd")
+        with contextlib.suppress(FileNotFoundError):
+            remove(f"hatch_cpp/tests/{project}/project/extension{suffix_ext}")
+
         modules.pop("project", None)
         modules.pop("project.extension", None)
 
@@ -40,14 +49,14 @@ def test_basic(self, project):
         )
 
         # assert built
-
+        project_dir_content = listdir(f"hatch_cpp/tests/{project}/project")
         if project == "test_project_limited_api" and platform != "win32":
-            assert "extension.abi3.so" in listdir(f"hatch_cpp/tests/{project}/project")
+            assert "extension.abi3.so" in project_dir_content
         else:
             if platform == "win32":
-                assert "extension.pyd" in listdir(f"hatch_cpp/tests/{project}/project")
+                assert "extension.pyd" in project_dir_content or f"extension{suffix_ext}" in project_dir_content
             else:
-                assert "extension.so" in listdir(f"hatch_cpp/tests/{project}/project")
+                assert "extension.so" in project_dir_content or f"extension{suffix_ext}" in project_dir_content
 
         # import
         here = Path(__file__).parent / project

hatch_cpp/toolchains/common.py

@@ -101,6 +101,9 @@ def check_py_limited_api(cls, value: Any) -> Any:
         return value
 
     def get_qualified_name(self, platform):
+        if self.binding == "cpython" and not self.py_limited_api:
+            suffix = get_config_var("EXT_SUFFIX")
+            return f"{self.name}{suffix}"
         if platform == "win32":
             suffix = "dll" if self.binding == "generic" else "pyd"
         elif platform == "darwin":