wheel_noarch.yml

name: Wheel::Any::None

# **What it does**: Builds a pure python wheel for Linux (ubuntu-latest) and store it as an artifact.
#                   Python version: 3.9.
# **Why we have it**: To test the wheel build in the python layer, with no compilation.
# **Who does it impact**: Wheels to be uploaded to PyPI.

on:
  pull_request:
  push:
    branches:
      - master
  release:
    types: [published]

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

jobs:
  build-pure-python-wheel:
    if: github.event_name != 'pull_request' || contains(github.event.pull_request.labels.*.name, 'ci:build_wheels')
    strategy:
      matrix:
        os: [ubuntu-latest]
        pl_backend: ["lightning_gpu", "lightning_kokkos", "lightning_qubit"]
    timeout-minutes: 30
    name: ${{ matrix.os }} - Pure Python wheels - ${{ matrix.pl_backend }} (Python 3.9)
    runs-on: ${{ matrix.os }}

    steps:
      - name: Checkout PennyLane-Lightning
        uses: actions/checkout@v4
        with:
          path: main

      - uses: actions/setup-python@v5
        with:
          python-version: '3.9'

      - name: Upgrade pip
        run: |
          python -m pip install --upgrade pip

      - name: Install CMake and ninja
        run: |
          python -m pip install --upgrade cmake ninja

      - name: Build wheels
        if: ${{ matrix.pl_backend == 'lightning_qubit'}}
        run: |
          python -m pip install --upgrade pip wheel
          cd main
          PL_BACKEND="${{ matrix.pl_backend }}" python setup.py bdist_wheel
        env:
          SKIP_COMPILATION: True

      - name: Validate wheels
        if: ${{ matrix.pl_backend == 'lightning_qubit'}}
        run: |
          python -m pip install twine
          python -m twine check main/dist/*.whl

      - uses: actions/upload-artifact@v3
        if: ${{ matrix.pl_backend == 'lightning_qubit' && (github.event_name == 'release' || github.ref == 'refs/heads/master') }}
        with:
          name: pure-python-wheels-${{ matrix.pl_backend }}.zip
          path: main/dist/*.whl

      - name: Build source dist
        if: ${{ matrix.pl_backend != 'lightning_qubit'}}
        run: |
          python -m pip install --upgrade pip wheel
          cd main
          PL_BACKEND="${{ matrix.pl_backend }}" python setup.py sdist
        env:
          SKIP_COMPILATION: True

      - uses: actions/upload-artifact@v3
        if: ${{ matrix.pl_backend != 'lightning_qubit' && (github.event_name == 'release' || github.ref == 'refs/heads/master') }}
        with:
          name: pure-source-dist-${{ matrix.pl_backend }}.tar.gz
          path: main/dist/*.tar.gz

  upload-pypi:
    needs: build-pure-python-wheel
    strategy:
      matrix:
        pl_backend: ["lightning_gpu", "lightning_kokkos", "lightning_qubit"]
    runs-on: ubuntu-latest

    steps:
      - uses: actions/download-artifact@v3
        if: ${{ matrix.pl_backend == 'lightning_qubit' && github.event_name == 'release' }}
        with:
          name: pure-python-wheels-${{ matrix.pl_backend }}.zip
          path: dist

      - name: Upload wheels to PyPI
        if: ${{ matrix.pl_backend == 'lightning_qubit' && github.event_name == 'release' }}
        uses: pypa/gh-action-pypi-publish@release/v1
        with:
          user: __token__
          password: ${{ secrets.TEST_PYPI_API_TOKEN }}
          repository-url: https://test.pypi.org/legacy/

      - uses: actions/download-artifact@v3
        if: ${{ matrix.pl_backend != 'lightning_qubit' && github.event_name == 'release' }}
        with:
          name: pure-source-dist-${{ matrix.pl_backend }}.tar.gz
          path: dist