release_python_package_to_pypi.yml

name: Release Python Package to PyPI

on:
  workflow_dispatch:
  release:
    types: [published]

jobs:
  build_deps_windows:
    name: Build Windows Dependencies
    runs-on: windows-latest
    steps:
      - uses: actions/checkout@v5
        with:
          lfs: true

      - name: Setup Python
        uses: actions/setup-python@v5
        with:
          cache: 'pip'

      - name: Install Meson using Python
        run: |
          python -m pip install --upgrade pip meson

      - name: Set branch name
        run: echo "BRANCH_NAME=${{ runner.os }}_${{ runner.arch }}_build_cache" >> $GITHUB_ENV
        shell: bash

      - name: Configure and build C++ API via CMake
        shell: pwsh
        run: |
          $ErrorActionPreference = "Stop"

          git clone -b "$env:BRANCH_NAME" --single-branch https://github.com/PycraftDeveloper/PMMA.git build_cache
          if ($LASTEXITCODE -ne 0) {
              Write-Host "Cache branch missing, creating..."
          } else {
              Write-Host "Cache branch missing, creating..."
              git checkout --orphan $env:BRANCH_NAME
              git lfs install
              git rm -rf .

              git config --global user.email "github-actions@github.com"
              git config --global user.name "GitHub Actions"
              git remote set-url origin https://x-access-token:${{ secrets.GITHUB_TOKEN }}@github.com/PycraftDeveloper/PMMA.git

              git commit --allow-empty -m "Initial commit"
              git push -u origin $env:BRANCH_NAME

              cd ..
              Remove-Item -Path "$env:GITHUB_WORKSPACE\PMMA" -Recurse -Force -ErrorAction SilentlyContinue

              git clone https://github.com/${{ github.repository }} /PMMA
              cd /PMMA
              git lfs install
              git clone -b $env:BRANCH_NAME --single-branch https://github.com/PycraftDeveloper/PMMA.git build_cache
          }

          python "build_tools/build_deps.py" -in_github_workflow

          cd build_cache

          git clean -fdx

          cd ..

          Get-ChildItem "build_tools" -Recurse -Force | Copy-Item -Destination "build_cache" -Recurse -Force

          cd build_cache

          git add .

          git config --global user.email "github-actions@github.com"
          git config --global user.name "GitHub Actions"
          git remote set-url origin https://x-access-token:${{ secrets.GITHUB_TOKEN }}@github.com/PycraftDeveloper/PMMA.git

          git commit -m "Update Build Cache"
          git push -u origin $env:BRANCH_NAME

  build_deps_linux:
    name: Build AnyLinux Dependencies
    runs-on: ubuntu-latest
    env:
        DOCKER_IMAGE: docker.io/pycraftdev/pmma-manylinux:latest

    steps:
      - name: Pre-pull Docker image (cached by GitHub’s runner)
        run: docker pull $DOCKER_IMAGE

      - name: Set branch name
        run: echo "BRANCH_NAME=${{ runner.os }}_${{ runner.arch }}_build_cache" >> $GITHUB_ENV
        shell: bash

      - name: Build Linux wheel inside Docker
        run: |
          docker run --rm \
            -e TERM=xterm \
            -e BRANCH_NAME=$BRANCH_NAME \
            -v "${{ github.workspace }}/dist:/output_dist" \
            $DOCKER_IMAGE \
            /bin/bash -c '
              set -e
              git clone https://github.com/${{ github.repository }} /PMMA
              cd /PMMA

              if git clone -b "$BRANCH_NAME" --single-branch https://github.com/PycraftDeveloper/PMMA.git build_cache; then
                  echo "Cache branch exists, cloned successfully."
              else
                  echo "Cache branch missing, creating..."
                  git checkout --orphan "$BRANCH_NAME"
                  git lfs install
                  git rm -rf .

                  git config --global user.email "github-actions@github.com"
                  git config --global user.name "GitHub Actions"
                  git remote set-url origin https://x-access-token:${{ secrets.GITHUB_TOKEN }}@github.com/PycraftDeveloper/PMMA.git

                  git commit --allow-empty -m "Initial commit"
                  git push -u origin "$BRANCH_NAME"

                  cd ..
                  rm -rf /PMMA

                  git clone https://github.com/${{ github.repository }} /PMMA
                  cd /PMMA
                  git lfs install
                  git clone -b "$BRANCH_NAME" --single-branch https://github.com/PycraftDeveloper/PMMA.git build_cache
              fi

              python3 "build_tools/build_deps.py" -in_github_workflow

              cd build_cache

              git clean -fdx

              cd ..

              cp -r build_tools/* build_cache/
              cp -r build_tools/.* build_cache/ 2>/dev/null || true

              cd build_cache

              git add .

              git config --global user.email "github-actions@github.com"
              git config --global user.name "GitHub Actions"
              git remote set-url origin https://x-access-token:${{ secrets.GITHUB_TOKEN }}@github.com/PycraftDeveloper/PMMA.git

              git commit -m "Update Build Cache"
              git push -u origin "$BRANCH_NAME"
            '

  build_linux: # How do I set the environment variable here?
    name: Build Linux wheels
    runs-on: ubuntu-latest
    strategy:
      matrix:
        python-tag: ["cp38-cp38", "cp39-cp39", "cp310-cp310", "cp311-cp311"]

    env:
      DOCKER_IMAGE: docker.io/pycraftdev/pmma-manylinux:latest
    needs: [build_deps_linux]
    steps:
      - name: Ensure dist directory exists
        run: mkdir -p dist

      - name: Pre-pull Docker image (cached by GitHub’s runner)
        run: docker pull $DOCKER_IMAGE

      - name: Set branch name
        run: echo "BRANCH_NAME=${{ runner.os }}_${{ runner.arch }}_build_cache" >> $GITHUB_ENV
        shell: bash

      - name: Build Linux wheel inside Docker
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          docker run --rm \
            -e TERM=xterm \
            -e BRANCH_NAME=$BRANCH_NAME \
            -e PYTHON_TAG=${{ matrix.python-tag }} \
            -v "${{ github.workspace }}/dist:/output_dist" \
            $DOCKER_IMAGE \
            /bin/bash -c '
              set -e

              tag=$PYTHON_TAG
              dir="/tmp/build_$tag"

              git clone https://github.com/${{ github.repository }} "$dir"
              cd "$dir"

              git clone -b "$BRANCH_NAME" --single-branch https://github.com/PycraftDeveloper/PMMA.git build_cache

              PYTHON_BIN="/opt/python/$tag/bin/python"
              python3 "build_tools/workflow_integration.py" -in_github_workflow
              $PYTHON_BIN "build_pmma.py" -in_github_workflow

              original=$(ls dist/*.whl)
              renamed=$(echo "$original" | sed "s/linux/manylinux_2_28/")
              mv "$original" "$renamed"
              cp dist/* /output_dist/
            '

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

  build_windows:
    strategy:
      matrix:
        include:
          - os: windows
            runs-on: windows-latest
            python-version: '3.8'
          - os: windows
            runs-on: windows-latest
            python-version: '3.9'
          - os: windows
            runs-on: windows-latest
            python-version: '3.10'
          - os: windows
            runs-on: windows-latest
            python-version: '3.11'

    runs-on: ${{ matrix.runs-on }}
    needs: [build_deps_windows]
    steps:
      - uses: actions/checkout@v5
        with:
          lfs: true

      # Python with built-in pip cache
      - name: Setup Python
        uses: actions/setup-python@v5
        with:
          python-version: ${{ matrix.python-version }}
          cache: 'pip'


      # Install Python build deps (reuses pip cache above)
      - name: Install Python build tools
        run: |
          python -m pip install --upgrade pip setuptools wheel cython numpy meson

      - name: Set branch name
        run: echo "BRANCH_NAME=${{ runner.os }}_${{ runner.arch }}_build_cache" >> $GITHUB_ENV
        shell: bash

      - name: Configure and build C++ API via CMake
        run: |
          git clone -b "$BRANCH_NAME" --single-branch https://github.com/PycraftDeveloper/PMMA.git build_cache

          python "build_tools/workflow_integration.py" -in_github_workflow
          python "build_tools/build_pmma.py" -in_github_workflow

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

# ──────────────────────────────────────
# 3. sdist and publish
# ──────────────────────────────────────

  sdist:
    name: Build Source Distribution
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v5
      - uses: actions/setup-python@v5
        with:
          python-version: '3.10'
      - run: |
          pip install setuptools wheel cython numpy
          python setup.py sdist
      - uses: actions/upload-artifact@v4
        with:
          name: sdist
          path: dist/*.tar.gz

  publish:
    name: Publish to PyPI + GitHub Release
    runs-on: ubuntu-latest
    needs: [build_windows, sdist, build_linux]
    steps:
      - name: Download all artifacts
        uses: actions/download-artifact@v4
        with:
          path: ./artifacts

      - name: Move distribution files
        run: |
          mkdir -p dist
          find artifacts -type f \( -name "*.whl" -o -name "*.tar.gz" \) -exec mv {} dist/ \;

      - name: Publish to PyPI
        uses: pypa/gh-action-pypi-publish@v1.12.4
        with:
          user: __token__
          password: ${{ secrets.PYPI_API_TOKEN }}
          packages_dir: dist

      - name: Upload to GitHub Release
        if: github.event_name == 'release'
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          UPLOAD_URL: ${{ github.event.release.upload_url }}
        run: |
          for f in dist/*; do
            echo "Uploading $f ..."
            curl -X POST \
              -H "Authorization: token $GITHUB_TOKEN" \
              -H "Content-Type: application/octet-stream" \
              --data-binary @"$f" \
              "${UPLOAD_URL%\{*}?name=$(basename "$f")"
          done