Migration to scikit-build-core

.gitignore

@@ -171,4 +171,21 @@ cython_debug/
 .ruff_cache/
 
 # PyPI configuration file
-.pypirc
+.pypirc
+
+# CMake stuff
+CMakeLists.txt.user
+CMakeCache.txt
+CMakeFiles
+CMakeScripts
+Testing
+Makefile
+cmake_install.cmake
+install_manifest.txt
+compile_commands.json
+CTestTestfile.cmake
+_deps
+CMakeUserPresets.json
+
+# VSCode/ium stuff
+.vscode/

CMakeLists.txt

@@ -0,0 +1,43 @@
+cmake_minimum_required(VERSION 3.17.2...3.29)
+project(${SKBUILD_PROJECT_NAME} LANGUAGES C Fortran)
+
+find_package(Python COMPONENTS Development.Module NumPy REQUIRED)
+
+# F2PY include path
+execute_process(
+  COMMAND "${Python_EXECUTABLE}" -c
+          "import numpy.f2py; print(numpy.f2py.get_include())"
+  OUTPUT_VARIABLE F2PY_INCLUDE_DIR
+  OUTPUT_STRIP_TRAILING_WHITESPACE)
+
+# fortranobject object library
+add_library(fortranobject OBJECT "${F2PY_INCLUDE_DIR}/fortranobject.c")
+target_link_libraries(fortranobject PUBLIC Python::NumPy)
+target_include_directories(fortranobject PUBLIC "${F2PY_INCLUDE_DIR}")
+set_property(TARGET fortranobject PROPERTY POSITION_INDEPENDENT_CODE ON)
+
+# Auto-generate wrappers
+add_custom_command(
+  OUTPUT bicubicmodule.c bicubic-f2pywrappers.f
+  DEPENDS lensit/bicubic/bicubic.f90
+  COMMAND "${Python_EXECUTABLE}" -m numpy.f2py
+          "${CMAKE_CURRENT_SOURCE_DIR}/lensit/bicubic/bicubic.f90"
+          -m bicubic --lower
+  VERBATIM)
+
+# Compile extension in the right namespace
+python_add_library(
+  bicubic MODULE
+  "${CMAKE_CURRENT_BINARY_DIR}/bicubicmodule.c"
+  "${CMAKE_CURRENT_BINARY_DIR}/bicubic-f2pywrappers.f"
+  "${CMAKE_CURRENT_SOURCE_DIR}/lensit/bicubic/bicubic.f90"
+  WITH_SOABI)
+
+target_link_libraries(bicubic PRIVATE fortranobject)
+
+
+# Automatically install to correct package dir
+install(TARGETS bicubic
+        LIBRARY DESTINATION lensit/bicubic)
+
+message(STATUS "Installing to: ${CMAKE_INSTALL_PREFIX}")

pyproject.toml

@@ -0,0 +1,45 @@
+[build-system]
+requires = [
+    "scikit-build-core",
+    "cmake>=3.18",
+    "ninja",
+    "numpy"
+]
+build-backend = "scikit_build_core.build"
+
+[project]
+name = "lensit"
+version = "0.0.0"
+dependencies = [
+    "numpy",
+    "scipy",
+    "pyfftw",
+    "finufft",
+    "six"
+]
+authors = [
+    {name = "Julien Carron", email="to.jcarron@gmail.com"}
+]
+description = "CMB lensing flat-sky quadratic and iterative estimation tools"
+readme = "README.md"
+license = "MIT-0"
+license-files = ["LICENSE.txt"]
+classifiers = [
+    "Development Status :: 5 - Production/Stable",
+    "Intended Audience :: Science/Research",
+    "Topic :: Scientific/Engineering :: Astronomy",
+    "Programming Language :: Python :: 3",
+]
+
+[project.optional-dependencies]
+dev = ["pytest"]
+extra = ["mpi4py"]
+
+[project.urls]
+Documentation = "https://lensit.readthedocs.io/"
+Repository = "https://github.com/carronj/LensIt"
+Issues = "https://github.com/carronj/LensIt/issues"
+
+
+[tool.scikit-build]
+wheel.packages = ["lensit"]