poetry python build

build_python.py

@@ -0,0 +1,47 @@
+import os
+import subprocess
+import sys
+import shutil
+
+def build(setup_kwargs):
+    """
+    Build the C++ extension using CMake.
+    This function is called by poetry-core during the build process.
+    The binary is placed directly inside the uLib directory in src/Python.
+    """
+    # Root of the whole project where this build_extension.py is located
+    project_root = os.path.abspath(os.path.dirname(__file__))
+    
+    # Where the extension should go
+    package_dir = os.path.join(project_root, "src/Python/uLib")
+    
+    # Ensure package directory exists
+    os.makedirs(package_dir, exist_ok=True)
+    
+    # Temporary build directory
+    build_temp = os.path.join(project_root, "build_python")
+    os.makedirs(build_temp, exist_ok=True)
+
+    print(f"--- Running CMake build in {build_temp} ---")
+    print(f"Project root: {project_root}")
+    print(f"Target binary dir: {package_dir}")
+
+    # CMake configuration
+    cmake_args = [
+        f"-DCMAKE_LIBRARY_OUTPUT_DIRECTORY={package_dir}",
+        f"-DPYTHON_EXECUTABLE={sys.executable}",
+        "-DCMAKE_BUILD_TYPE=Release",
+        "-DUSE_CUDA=OFF", 
+        "-G", "Unix Makefiles",
+    ]
+
+    # Use micromamba to ensure Boost and VTK are found during the build
+    subprocess.check_call(["cmake", project_root] + cmake_args, cwd=build_temp)
+    subprocess.check_call(["cmake", "--build", ".", "--parallel", "--target", "uLib_python"], cwd=build_temp)
+    
+    # Ensure the package is found by poetry during the wheel creation process.
+    # Return setup_kwargs for poetry-core.
+    return setup_kwargs
+
+if __name__ == "__main__":
+    build({})