build.yaml

name: Build, Sign & Publish

on:
  push:
  pull_request:

jobs:
  build-linux:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        arch:
          - amd64
          - arm64

    steps:
      - uses: actions/checkout@v3

      - name: Install dependencies
        run: |
          sudo apt update
          sudo apt install -y \
            build-essential wget m4 xz-utils \
            make cmake libeigen3-dev \
            liblapack-dev libopenblas-dev

      - name: Build wheel
        run: |
          ./build.sh
          readelf -d flatter-linux | grep 'NEEDED'

      - name: Test the Package
        run: |
          ./test.sh

      - name: Upload wheel artifact
        uses: actions/upload-artifact@v4
        with:
          name: wheel-${{ matrix.arch }}-linux
          path: dist/*.whl

  build-darwin:
    runs-on: macos-latest
    strategy:
      matrix:
        arch:
          - arm64
    steps:
      - uses: actions/checkout@v3

      - name: Install dependencies
        run: |
          brew install make wget cmake eigen

      - name: Build wheel
        run: |
          ./build.sh

      - name: Test the package
        run: |
          ./test.sh

      - name: Upload wheel artifact
        uses: actions/upload-artifact@v4
        with:
          name: wheel-${{ matrix.arch }}-darwin
          path: dist/*.whl

  test-darwin:
    name: Fresh Install on macOS
    runs-on: macos-latest

    strategy:
      matrix:
        arch:
          - arm64

    needs:
      - build-darwin

    steps:
      - uses: actions/checkout@v3

      - name: Delete everything except tests.py
        run: |
          find . -type f -not -name 'tests.py' -delete

      - name: Download the wheel artifact
        uses: actions/download-artifact@v4
        with:
          name: wheel-${{ matrix.arch }}-darwin

      - name: Run Tests
        run: |
          python3 -m venv venv
          . venv/bin/activate
          PYTHONPATH= pip install *.whl
          python3 tests.py

  test-linux:
    name: Fresh Install on Linux
    runs-on: ubuntu-latest

    strategy:
      matrix:
        arch:
          - amd64
          - arm64

    needs:
      - build-linux

    steps:
      - uses: actions/checkout@v3

      - name: Delete everything except tests.py
        run: |
          find . -type f -not -name 'tests.py' -delete

      - name: Download the wheel artifact
        uses: actions/download-artifact@v4
        with:
          name: wheel-${{ matrix.arch }}-linux

      - name: Run Tests
        run: |
          python3 -m venv venv
          . venv/bin/activate
          PYTHONPATH= pip install *.whl
          python3 tests.py

  collect-artifacts:
    name: Collect Build Artifacts

    needs:
      - test-linux
      - test-darwin

    runs-on: ubuntu-latest

    steps:
      - uses: actions/download-artifact@v4
        with:
          pattern: wheel-*
          path: dist/
          merge-multiple: true

      - name: Upload merged artifacts
        uses: actions/upload-artifact@v4
        with:
          name: artifacts
          path: dist/

  publish-to-pypi:
    name: >-
      Publish to PyPI

    needs:
      - collect-artifacts

    # only publish on tags
    if: ${{ startsWith(github.ref, 'refs/tags/') }}

    runs-on: ubuntu-latest

    environment:
      name: pypi
      url: https://pypi.org/p/flatn

    permissions:
      contents: write
      id-token: write

    steps:
      - uses: actions/download-artifact@v4
        with:
          name: artifacts
          path: dist/

      - name: Publish distribution to PyPI
        uses: pypa/gh-action-pypi-publish@release/v1

  github-release:
    name: Sign & Create Release

    needs:
      - publish-to-pypi

    runs-on: ubuntu-latest

    permissions:
      contents: write
      id-token: write

    steps:
      - name: Download all the dists
        uses: actions/download-artifact@v4
        with:
          name: artifacts
          path: dist/

      - name: Sign the distribution with SigStore
        uses: sigstore/gh-action-sigstore-python@v3.0.0
        with:
          inputs: >-
            ./dist/*.whl

      - name: Create GitHub Release
        env:
          GITHUB_TOKEN: ${{ github.token }}
        run: >-
          gh release create
          "$GITHUB_REF_NAME"
          --repo "$GITHUB_REPOSITORY"
          --notes ""

      - name: Upload artifact signatures to GitHub Release
        env:
          GITHUB_TOKEN: ${{ github.token }}
        run: >-
          gh release upload
          "$GITHUB_REF_NAME" dist/**
          --repo "$GITHUB_REPOSITORY"

  publish-to-testpypi:
    name: >-
      Publish to TestPyPI

    needs:
      - collect-artifacts

    # only test publish on master branch
    if: github.ref == 'refs/heads/master'

    runs-on: ubuntu-latest

    environment:
      name: testpypi
      url: https://test.pypi.org/p/flatn

    permissions:
      id-token: write

    steps:
      - uses: actions/download-artifact@v4
        with:
          name: artifacts
          path: dist/

      - name: Publish distribution to TestPyPI
        uses: pypa/gh-action-pypi-publish@release/v1
        with:
          repository-url: https://test.pypi.org/legacy/