build_wheels.yml

name: Build binary wheels and sdist

on:
  push:
    tags:
      - v*
  schedule:
    - cron: "12 02 * * SUN"
  workflow_dispatch:

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

defaults:
  run:
    shell: bash

jobs:
  build_wheels:
    name: ${{ matrix.arch }} wheels on ${{ matrix.os }}
    if: github.repository_owner == 'contourpy'
    runs-on: ${{ matrix.os }}
    env:
      CIBW_PRERELEASE_PYTHONS: True

    strategy:
      fail-fast: false
      matrix:
        include:
          - os: ubuntu-latest
            arch: aarch64
          - os: ubuntu-latest
            arch: ppc64le
          - os: ubuntu-latest
            arch: s390x
          - os: ubuntu-latest
            arch: x86_64

          - os: macOS-14
            arch: arm64
          - os: macOS-13
            arch: x86_64

          - os: windows-latest
            arch: AMD64
          - os: windows-latest
            arch: x86

    steps:
      - name: Checkout source
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Set up QEMU
        if: runner.os == 'Linux'
        uses: docker/setup-qemu-action@v3
        with:
          platforms: all

      - name: Setup MSVC (32-bit)
        if: ${{ matrix.arch == 'x86' }}
        uses: bus1/cabuild/action/msdevshell@v1
        with:
          architecture: 'x86'

      - name: Fix PATH on win32
        # Avoid this in GHA: "ERROR: Found GNU link.exe instead of MSVC link.exe"
        if: ${{ matrix.arch == 'x86' }}
        run: |
          rm /c/Program\ Files/Git/usr/bin/link.EXE

      - name: Build wheels
        uses: pypa/cibuildwheel@v2.21.2
        env:
          CIBW_ARCHS: ${{ matrix.arch }}

      - uses: actions/upload-artifact@v4
        with:
          name: wheels_${{ matrix.os }}_${{ matrix.arch }}
          path: ./wheelhouse/*.whl

  build_sdist:
    name: Build sdist
    if: github.repository_owner == 'contourpy'
    runs-on: ubuntu-latest
    steps:
      - name: Checkout source
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Setup Python
        uses: actions/setup-python@v5
        with:
          python-version: '3.12'

      - name: Install dependencies
        run: |
          python -m pip install build

      - name: Build sdist
        run: |
          python -m build --sdist

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

  merge_wheels:
    name: Merge wheel build artifacts
    runs-on: ubuntu-latest
    needs: build_wheels
    steps:
      - name: Merge artifacts
        uses: actions/upload-artifact/merge@v4
        with:
          name: contourpy-wheels
          pattern: wheels*
          delete-merged: true

  upload_nightlies:
    name: Upload nightly wheels
    if: github.repository_owner == 'contourpy' && github.ref == 'refs/heads/main'
    runs-on: ubuntu-latest
    needs: merge_wheels
    steps:
      - name: Download merged wheel artifact
        uses: actions/download-artifact@v4
        with:
          name: contourpy-wheels
          path: dist

      - name: List wheels
        run: ls -l dist

      - name: Upload wheels to scientific python
        uses: scientific-python/upload-nightly-action@82396a2ed4269ba06c6b2988bb4fd568ef3c3d6b # 0.6.1
        with:
          artifacts_path: dist
          anaconda_nightly_upload_token: ${{ secrets.ANACONDA_ORG_UPLOAD_TOKEN }}