add hook to remove source files from wheel

pdm_build.py

@@ -0,0 +1,45 @@
+import re
+import zipfile
+from pathlib import Path
+
+from Cython.Build import cythonize
+
+ext_modules = cythonize(["src/dopt_sensor_anomalies/detection.py"])
+
+
+def pdm_build_initialize(context):
+    context.ensure_build_dir()
+
+
+def pdm_build_update_setup_kwargs(context, setup_kwargs):
+    setup_kwargs.update(
+        ext_modules=ext_modules,
+    )
+
+
+def pdm_build_finalize(context, artifact):
+    print(">>>>>> Context: ", context)
+    print(">>>>>> Artifact: ", artifact)
+    pth_artifact = Path(artifact)
+
+    if pth_artifact.suffix == ".whl":
+        delete_source_files_from_wheel(pth_artifact)
+
+
+def delete_source_files_from_wheel(pth_to_whl: Path):
+    assert pth_to_whl.exists(), "wheel file not existing"
+    tmp_dir = pth_to_whl.parent / "tmp"
+    tmp_dir.mkdir()
+    filename = pth_to_whl.name
+    tmp_whl = tmp_dir / filename
+    pattern = re.compile(r".*\.c$|.*detection.py$")
+
+    with zipfile.ZipFile(pth_to_whl, mode="r") as src:
+        with zipfile.ZipFile(tmp_whl, mode="w") as dst:
+            for filename in src.namelist():
+                if pattern.match(filename) is None:
+                    data = src.read(filename)
+                    dst.writestr(filename, data)
+
+    tmp_whl.replace(pth_to_whl)
+    tmp_dir.rmdir()