python-package.yml

# Publish a tagged release to PyPI using a single API token stored
# in the repo secret "PYPI_TOKEN" (value starts with pypi-…)

name: Python Package

on:
  push:
    tags:
      - 'v*.*.*'      # run when you push e.g. v1.2.3
  pull_request:
    branches:
      - main          # keep CI on PRs to main

jobs:
  build:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        python-version: [3.8, 3.9, "3.10", "3.11"]

    steps:
      - name: Checkout repository
        uses: actions/checkout@v3

      - name: Set up Python ${{ matrix.python-version }}
        uses: actions/setup-python@v4
        with:
          python-version: ${{ matrix.python-version }}

      - name: Install dependencies
        run: |
          python -m pip install --upgrade pip
          pip install -r requirements.txt
          pip install setuptools wheel build pytest flake8

      - name: Build the package (sdist + wheel)
        run: python -m build

      - name: Install built wheel
        run: pip install dist/*.whl

      - name: Lint with flake8
        run: |
          flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
          flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics

      - name: Run tests
        run: pytest

  deploy:
    needs: build
    runs-on: ubuntu-latest
    if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v')
    permissions:
      id-token: write         
      contents: read
    steps:
      - name: Checkout repository
        uses: actions/checkout@v3

      - name: Set up Python
        uses: actions/setup-python@v4
        with:
          python-version: '3.11'

      - name: Install build tools
        run: |
          python -m pip install --upgrade pip
          pip install build

      - name: Build for release (sdist + wheel)
        run: python -m build

      - name: Publish to PyPI
        uses: pypa/gh-action-pypi-publish@release/v1
        with:
          password: ${{ secrets.PYPI_TOKEN }}