scikit-build-core first steps

.github/workflows/build-pip-wheels.yml

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+ame: GHEX Release Artifacts
+
+on:
+  push:
+    branches: 
+      - ciwheel
+    tags:
+      - v*
+
+  schedule:
+    - cron: '0 2 * * 0' # run at 2 AM every sunday
+
+jobs:
+  get_timestamp:
+    name: Prep pyproject.toml
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Get GHEX
+        uses: actions/checkout@v3
+        with:
+          submodules: recursive
+      - name: Create unique version in pyproject.toml
+        if: startsWith(github.ref, 'refs/tags/v') == false
+        run: python3 -c 'import time;f=open("pyproject.toml","r+");c = f.readlines();d=[i.split("#")[0].strip()[:-1]+time.strftime("%Y%m%d%H%I%S")+"\"\n" if i.startswith("version") else i for i in c];f.seek(0);f.writelines(d);f.truncate()'
+      - uses: actions/upload-artifact@v3
+        with:
+            name: ghexver
+            path: ${{ github.workspace }}/pyproject.toml
+
+  build_binary_wheels:
+    name: Build wheels on ${{ matrix.os }}
+    needs: get_timestamp
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest]
+
+    steps:
+      - name: Get GHEX
+        uses: actions/checkout@v3
+        with:
+          submodules: recursive
+      - name: Delete pyproject.toml
+        run: rm -f pyproject.toml
+      - name: Get pyproject.toml
+        uses: actions/download-artifact@v3
+        with:
+          name: ghexver
+      - name: Check pyproject.toml
+        run: cat pyproject.toml
+      - name: Install cibuildwheel
+        run: python3 -m pip install cibuildwheel
+      - name: Build wheels
+        run: python3 -m cibuildwheel --output-dir dist
+      - uses: actions/upload-artifact@v3
+        with:
+          name: dist
+          path: dist/*.whl
+
+  build_sdist:
+    name: Build sdist
+    needs: get_timestamp
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Update pip and setup venv
+        run: python -m pip install --upgrade pip && python -m venv ~/env && . ~/env/bin/activate && echo PATH=$PATH >> $GITHUB_ENV
+      - name: Get packages
+        run: python3 -m pip install build
+      - name: Get GHEX
+        uses: actions/checkout@v3
+        with:
+          submodules: recursive
+      - name: Delete pyproject.toml
+        run: rm -f pyproject.toml
+      - name: Get pyproject.toml
+        uses: actions/download-artifact@v3
+        with:
+          name: ghexver
+      - name: Check pyproject.toml
+        run: cat pyproject.toml
+      - name: Make sdist
+        run: python3 -m build -s
+      - name: Install sdist
+        run:  python3 -m pip install dist/ghex*.tar.gz
+      #- name: Run Python tests
+      #  run: python3 -m unittest discover -v -s python
+      #- name: Run Python examples
+      #  run: scripts/run_python_examples.sh
+      #- name: Test executables
+      #  run: scripts/test_executables.sh
+      - uses: actions/upload-artifact@v3
+        with:
+          name: dist
+          path: dist/*.tar.gz
+
+  #upload_test_pypi:
+  #  name: upload to test pypi
+  #  runs-on: ubuntu-latest
+  #  needs: [build_binary_wheels, build_sdist]
+  #  steps:
+  #    - uses: actions/download-artifact@v3
+  #      with:
+  #        name: dist
+  #    - name: Publish distribution 📦 to Test PyPI
+  #      run: |
+  #        pip install twine
+  #        twine upload -r testpypi ./*
+  #      env:
+  #        TWINE_USERNAME: __token__
+  #        TWINE_PASSWORD: ${{ secrets.TESTPYPI_SECRET }}
+
+  #make_release:
+  #  name: draft new GitHub release
+  #  if: startsWith(github.ref, 'refs/tags/v')
+  #  runs-on: ubuntu-latest
+  #  needs: [build_binary_wheels, build_sdist]
+  #  steps:
+  #    - name: "Clone w/ submodules"
+  #      uses: actions/checkout@v3
+  #      with:
+  #        fetch-depth: 0
+  #        submodules: "recursive"
+  #        path: arbor
+  #    - name: Make full tarball
+  #      run: |
+  #        the_ref=${{ github.ref }}
+  #        the_tag="${the_ref/refs\/tags\//}"
+  #        $GITHUB_WORKSPACE/arbor/scripts/create_tarball $GITHUB_WORKSPACE/arbor $the_tag $GITHUB_WORKSPACE/arbor-$the_tag-full.tar.gz
+  #    - name: "Make Release"
+  #      uses: ncipollo/release-action@v1
+  #      with:
+  #        omitBody: false
+  #        draft: true
+  #        prerelease: false
+  #        generateReleaseNotes: true
+  #        artifacts: '*.whl,*full.tar.gz'
+  #        token: ${{ secrets.GITHUB_TOKEN }}

pyproject.toml

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+[build-system]
+requires = [
+    "scikit-build-core",
+]
+build-backend = "scikit_build_core.build"
+
+[project]
+name = "pyghex"
+version = "0.3.0" # will be replaced during build process
+description = "Generic Halo Exchanges: Python API"
+readme = {file = "README.md", content-type = "text/markdown"}
+license = {file = "LICENSE"}
+requires-python = ">=3.7"
+classifiers = [
+    "Development Status :: 4 - Beta",
+    "License :: OSI Approved :: BSD License",
+    "Programming Language :: Python",
+    "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 :: C++"
+]
+dependencies = [
+    "numpy",
+]
+
+[project.urls]
+repository = "https://github.com/ghex-org/GHEX"
+
+#[project.optional-dependencies]
+#test = [
+#    "pytest",
+#]
+
+[tool.scikit-build]
+wheel.expand-macos-universal-tags = true
+cmake.args = [
+    "GHEX_BUILD_PYTHON_BINDINGS=ON",
+    "GHEX_USE_BUNDLED_LIBS=ON",
+    "GHEX_USE_BUNDLED_GRIDTOOLS=ON",
+    "GHEX_USE_BUNDLED_OOMPH=ON",
+]
+wheel.install-dir = "ghex"
+wheel.packages = []
+
+[tool.cibuildwheel]
+build-frontend = "build"
+build = ["*linux*","*macosx*"]
+skip = ["cp36*", "*musllinux*"]
+#test-command = "python -m unittest discover -v -s {project}/python"
+dependency-versions = "latest"
+
+[tool.cibuildwheel.macos]
+archs = ["universal2"]
+
+[tool.cibuildwheel.macos.environment]
+MACOSX_DEPLOYMENT_TARGET = "10.15"
+
+[tool.cibuildwheel.linux]
+archs = ["x86_64"]
+
+[[tool.cibuildwheel.overrides]]
+select = "*-musllinux*"
+#TBD