name: Build and publish documentation

on:
  push:
    tags: [ "*" ]

permissions:
  contents: write
  pull-requests: write

jobs:
  build:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        python-version: ["3.10"]
      fail-fast: false

    steps:
    - uses: actions/checkout@v2

    - name: Set up Python ${{ matrix.python-version }}
      uses: actions/setup-python@v2
      with:
        python-version: ${{ matrix.python-version }}

    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install -r requirements/dev.txt

    - name: Build documentation
      run: |
        make docs

    - name: github pages deploy
      uses: peaceiris/actions-gh-pages@v3.8.0
      with:
        github_token: ${{ secrets.GITHUB_TOKEN }}
        publish_branch: gh-pages
        publish_dir: docs
        force_orphan: true