deploy-cpp.yml

name: Deploy C++

on:
  workflow_dispatch:
    inputs:
        publish-pypi:
            type: boolean
            description: Publish to PyPI

jobs:
  determine-source-date-epoch:
    name: "Determine SOURCE_DATE_EPOCH"
    runs-on: ubuntu-latest
    outputs:
      source-date-epoch: ${{ steps.log.outputs.source-date-epoch }}

    steps:
      - uses: actions/checkout@v4
        with:
          submodules: true
          fetch-depth: 0

      - id: log
        name: Compute SOURCE_DATE_EPOCH
        run: |
          # Find latest unix timestamp in awkward-cpp, and the kernel generation files
          epoch=$( git log -1 --format=%at -- awkward-cpp kernel-specification.yml kernel-test-data.json )
          echo "source-date-epoch=$epoch" >> $GITHUB_OUTPUT

  make_sdist:
    name: Make SDist
    runs-on: ubuntu-latest
    needs: [determine-source-date-epoch]
    env:
      SOURCE_DATE_EPOCH: ${{ needs.determine-source-date-epoch.outputs.source-date-epoch }}

    steps:
    - uses: actions/checkout@v4
      with:
        submodules: true

    - name: Prepare build files
      run: pipx run nox -s prepare

    - name: Build awkward-cpp sdist
      run: pipx run build --sdist awkward-cpp

    - name: Check metadata
      run: pipx run twine check awkward-cpp/dist/*

    - uses: actions/upload-artifact@v4
      with:
        name: awkward-sdist
        path: awkward-cpp/dist/*.tar.gz

  build_wheels:
    needs: [determine-source-date-epoch]
    name: "Wheel: ${{ matrix.type }} ${{ matrix.arch }} on ${{ matrix.os }} with ${{ matrix.build }}"
    runs-on: ${{ matrix.os }}
    env:
      SOURCE_DATE_EPOCH: ${{ needs.determine-source-date-epoch.outputs.source-date-epoch }}
    strategy:
      matrix:
        os: [ubuntu-latest, macos-latest]
        arch: [auto64]
        build: ["cp", "pp"]

        include:
        - os: macos-latest
          type: "Universal"
          arch: universal2
          build: "cp"

        - os: windows-latest
          arch: auto64
          build: "cp"

        - os: windows-latest
          arch: auto32
          build: "cp{38,39}-"

    steps:
    - uses: actions/checkout@v4
      with:
        submodules: true

    - name: Python 3.11
      uses: actions/setup-python@v5
      with:
        python-version: '3.11'

    - name: Prepare build files
      run: pipx run nox -s prepare

    - uses: pypa/cibuildwheel@v2.16.5
      env:
        CIBW_BUILD: "${{ matrix.build }}*"
        CIBW_ARCHS: ${{ matrix.arch }}
      with:
        config-file: cibuildwheel.toml
        package-dir: awkward-cpp

    - name: Check metadata
      shell: python
      run: |
        import subprocess, glob
        subprocess.run(
          ["pipx", "run", "twine", "check", *glob.glob("wheelhouse/*.whl")],
          check=True
        )

    - name: Upload wheels
      uses: actions/upload-artifact@v4
      with:
        name: awkward-wheels-${{ matrix.os }}-${{ matrix.arch }}-${{ matrix.build }}
        path: wheelhouse/*.whl


  build_alt_wheels:
    needs: [determine-source-date-epoch]
    name: "Wheel: ${{ matrix.python }} on ${{ matrix.arch }}"
    runs-on: ubuntu-latest
    env:
      SOURCE_DATE_EPOCH: ${{ needs.determine-source-date-epoch.outputs.source-date-epoch }}
    strategy:
      matrix:
        python: [38, 39, 310, 311, 312]
        arch: [aarch64]
    steps:

    - uses: actions/checkout@v4
      with:
        submodules: true

    - name: Python 3.10
      uses: actions/setup-python@v5
      with:
        python-version: '3.10'

    - name: Prepare build files
      run: pipx run nox -s prepare

    - uses: docker/setup-qemu-action@v3.0.0

    - uses: pypa/cibuildwheel@v2.16.5
      env:
        CIBW_BUILD: cp${{ matrix.python }}-*
        CIBW_ARCHS: ${{ matrix.arch }}
      with:
        config-file: cibuildwheel.toml
        package-dir: awkward-cpp

    - name: Check metadata
      shell: python
      run: |
        import subprocess, glob
        subprocess.run(
          ["pipx", "run", "twine", "check", *glob.glob("wheelhouse/*.whl")],
          check=True
        )

    - name: Upload wheels
      uses: actions/upload-artifact@v4
      with:
        name: awkward-wheels-${{ matrix.arch }}-py${{ matrix.python }}
        path: wheelhouse/*.whl

  upload_all:
    needs: [build_wheels, build_alt_wheels, make_sdist]
    runs-on: ubuntu-latest
    if: inputs.publish-pypi
    permissions:
      id-token: write
    environment:
      name: "pypi"
      url: "https://pypi.org/project/awkward-cpp/"
    steps:
    - uses: actions/download-artifact@v4
      with:
        pattern: "awkward*"
        path: dist
        merge-multiple: true

    - uses: pypa/gh-action-pypi-publish@v1.8.11