name: Build docs

on: [push, pull_request]

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v2
    - name: Set up Python 3.8
      uses: actions/setup-python@v2
      with:
        python-version: 3.8
    - name: Install Graphviz
      run: |
        sudo apt-get update
        sudo apt-get install graphviz
    - name: Install Python dependencies
      run: |
        python -m pip install --upgrade pip setuptools coverage
        pip install -r docs/requirements.txt
    - name: Build docs
      run: |
        python tools/fixup_whats_new_pr.py
        make -C docs/ html SPHINXOPTS="-W" \
          PYTHON="coverage run -a" \
          SPHINXBUILD="coverage run -a -m sphinx.cmd.build"
    - name: Generate coverage xml
      run: |
        coverage combine `find . -name .coverage\*` && coverage xml
    - name: Upload coverage to Codecov
      uses: codecov/codecov-action@v2
      with:
        name: Docs