feat: move to scikit-build-core

Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>

.github/workflows/tests.yml

@@ -108,7 +108,7 @@ jobs:
 
       - uses: pypa/cibuildwheel@v2.16
         env:
-          CIBW_BUILD: cp38-win32 cp312-manylinux_x86_64 cp37-macosx_x86_64
+          CIBW_BUILD: cp38-win32 cp312-manylinux_x86_64 cp38-macosx_universal2
           CIBW_BUILD_VERBOSITY: 1
           CIBW_ENVIRONMENT: "PIP_ONLY_BINARY=:all:"
 

.github/workflows/wheels.yml

@@ -91,7 +91,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [windows-2019, macos-latest, ubuntu-latest]
+        os: [windows-2019, ubuntu-latest]
         arch: [auto64]
 
         include:
@@ -101,6 +101,10 @@ jobs:
           - os: windows-2019
             arch: auto32
 
+          - os: macos-latest
+            arch: auto64
+            build: cp37*
+
     steps:
       - uses: actions/checkout@v4
         with:

CMakeLists.txt

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.10...3.26)
+cmake_minimum_required(VERSION 3.15...3.26)
 
 project(BOOST_HISTOGRAM LANGUAGES CXX)
 # Version is added later
@@ -154,7 +154,8 @@ set_property(TARGET _core PROPERTY LIBRARY_OUTPUT_DIRECTORY "$<1:boost_histogram
 # Collect all the python files and symlink them (3.14+) or copy them (3.12-3.13)
 # into the build directory
 # Protects from in-source builds (don't do this, please)
-if(NOT "${CMAKE_CURRENT_SOURCE_DIR}" STREQUAL "${CMAKE_CURRENT_BINARY_DIR}")
+if(NOT "${CMAKE_CURRENT_SOURCE_DIR}" STREQUAL "${CMAKE_CURRENT_BINARY_DIR}" AND NOT DEFINED
+                                                                                SKBUILD)
   file(
     GLOB_RECURSE BOOST_HIST_PY_FILES
     LIST_DIRECTORIES false
@@ -174,15 +175,20 @@ if(NOT "${CMAKE_CURRENT_SOURCE_DIR}" STREQUAL "${CMAKE_CURRENT_BINARY_DIR}")
 endif()
 
 # Support installing
-install(DIRECTORY "src/boost_histogram" DESTINATION ".")
-install(FILES "${CMAKE_CURRENT_BINARY_DIR}/boost_histogram/version.py"
-        DESTINATION "boost_histogram")
 install(TARGETS _core DESTINATION "boost_histogram")
 
-# Tests (Requires pytest to be available to run)
-include(CTest)
+if(NOT DEFINED SKBUILD)
+  install(DIRECTORY "src/boost_histogram" DESTINATION ".")
+  install(FILES "${CMAKE_CURRENT_BINARY_DIR}/boost_histogram/version.py"
+          DESTINATION "boost_histogram")
 
-if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/src/boost_histogram/version.py")
+  # Tests (Requires pytest to be available to run)
+  include(CTest)
+endif()
+
+if(DEFINED SKBUILD)
+  # Don't worry about the version
+elseif(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/src/boost_histogram/version.py")
   set(VERSION_REGEX [=[version[ \t]*=[ \t]*["']([0-9]+\.[0-9]+\.[0-9]+)]=])
 
   # Read in the line containing the version
@@ -220,12 +226,14 @@ else()
   message(STATUS "Full version output: ${VERSION_FULL_STRING}")
 endif()
 
-project(
-  BOOST_HISTOGRAM
-  LANGUAGES CXX
-  VERSION ${VERSION_STRING})
-message(STATUS "boost-histogram ${BOOST_HISTOGRAM_VERSION}")
+if(NOT DEFINED SKBUILD)
+  project(
+    BOOST_HISTOGRAM
+    LANGUAGES CXX
+    VERSION ${VERSION_STRING})
+  message(STATUS "boost-histogram ${BOOST_HISTOGRAM_VERSION}")
 
-if(BUILD_TESTING)
-  add_subdirectory(tests)
+  if(BUILD_TESTING)
+    add_subdirectory(tests)
+  endif()
 endif()

README.md

@@ -196,7 +196,7 @@ platforms have wheels provided in boost-histogram:
 | ManyLinux2014    | 64-bit      | 3.7, 3.8, 3.9, 3.10, 3.11, 3.12 | 3.7, 3.8, 3.9, 3.10 |
 | ManyLinux2014    | ARM64       | 3.7, 3.8, 3.9, 3.10, 3.11, 3.12 | 3.7, 3.8, 3.9, 3.10 |
 | MuslLinux_1_1    | 64-bit      | 3.7, 3.8, 3.9, 3.10, 3.11, 3.12 |                     |
-| macOS 10.9+      | 64-bit      | 3.7, 3.8, 3.9, 3.10, 3.11, 3.12 | 3.7, 3.8, 3.9, 3.10 |
+| macOS 10.9+      | 64-bit      | 3.7                             | 3.7, 3.8, 3.9, 3.10 |
 | macOS Universal2 | Arm64       | 3.8, 3.9, 3.10, 3.11, 3.12      |                     |
 | Windows          | 32 & 64-bit | 3.7, 3.8, 3.9, 3.10, 3.11, 3.12 |                     |
 | Windows          | 64-bit      |                                 | 3.7, 3.8, 3.9, 3.10 |

pyproject.toml

@@ -1,13 +1,106 @@
 [build-system]
-requires = [
-  "setuptools>=45",
-  "setuptools_scm[toml]>=4.1.2",
+requires = ["scikit-build-core[pyproject]"]
+build-backend = "scikit_build_core.build"
+
+[project]
+name = "boost-histogram"
+dynamic = ["version"]
+description = "The Boost::Histogram Python wrapper."
+readme = "README.md"
+requires-python = ">=3.7"
+authors = [
+    { name = "Hans Dembinski and Henry Schreiner", email = "hschrein@cern.ch" },
+]
+keywords = [
+    "boost-histogram",
+    "histogram",
+]
+classifiers = [
+    "Development Status :: 5 - Production/Stable",
+    "Intended Audience :: Developers",
+    "Intended Audience :: Information Technology",
+    "Intended Audience :: Science/Research",
+    "License :: OSI Approved :: BSD License",
+    "Operating System :: MacOS",
+    "Operating System :: Microsoft :: Windows",
+    "Operating System :: POSIX",
+    "Operating System :: Unix",
+    "Programming Language :: C++",
+    "Programming Language :: Python :: 3 :: Only",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.7",
+    "Programming Language :: Python :: 3.8",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: Implementation :: CPython",
+    "Programming Language :: Python :: Implementation :: PyPy",
+    "Programming Language :: Python",
+    "Topic :: Scientific/Engineering :: Information Analysis",
+    "Topic :: Scientific/Engineering :: Mathematics",
+    "Topic :: Scientific/Engineering :: Physics",
+    "Topic :: Scientific/Engineering",
+    "Topic :: Software Development",
+    "Topic :: Utilities",
+    "Typing :: Typed",
+]
+dependencies = [
+    "numpy;python_version<'3.12'",
+    "numpy>=1.26.0b1;python_version>='3.12'",
+    "typing-extensions;python_version<'3.8'",
+]
+
+[project.optional-dependencies]
+dev = [
+    "cloudpickle",
+    "hypothesis>=6.0",
+    "ipykernel",
+    "pytest-benchmark",
+    "pytest>=6.0",
+    "typer",
+]
+docs = [
+    "myst_parser>=0.13",
+    "nbsphinx",
+    "sphinx-book-theme>=0.0.33",
+    "Sphinx>=4.0",
+    "sphinx_copybutton",
 ]
-build-backend = "setuptools.build_meta"
+examples = [
+    "matplotlib",
+    "netCDF4",
+    "numba",
+    "uproot3",
+    "xarray",
+    "xhistogram",
+]
+test = [
+    "cloudpickle",
+    "hypothesis>=6.0",
+    "pytest-benchmark",
+    "pytest>=6.0",
+]
+
+[project.urls]
+"Bug Tracker" = "https://github.com/scikit-hep/boost-histogram/issues"
+Changelog = "https://boost-histogram.readthedocs.io/en/latest/CHANGELOG.html"
+Chat = " https://gitter.im/HSF/PyHEP-histogramming"
+Discussions = "https://github.com/scikit-hep/boost-histogram/discussions"
+Documentation = "https://boost-histogram.readthedocs.io/"
+Homepage = "https://github.com/scikit-hep/boost-histogram"
+
+
+[tool.scikit-build]
+metadata.version.provider = "scikit_build_core.metadata.setuptools_scm"
+sdist.include = ["src/boost_histogram/version.py"]
+wheel.expand-macos-universal-tags = true
+
 
 [tool.setuptools_scm]
 write_to = "src/boost_histogram/version.py"
 
+
 [tool.pytest.ini_options]
 minversion = "6.0"
 junit_family = "xunit2"
@@ -94,6 +187,7 @@ test-skip = [
 skip = ["pp*-manylinux_i686", "cp312-win32"] # not supported by NumPy
 environment-pass = ["SETUPTOOLS_SCM_PRETEND_VERSION"]
 environment = { PIP_ONLY_BINARY = "numpy" }
+macos.archs = ["universal2"]
 
 
 [tool.pylint]