name: Docs

on:
  workflow_dispatch:
  #push:
  #  branches:
  #  - 'main'
  #  - '3.11'
  #  - '3.10'
  #  - '3.9'
  #  - '3.8'
  #  - '3.7'
  #  paths:
  #  - 'Doc/**'
  pull_request:
    branches:
    - 'main'
    - '3.11'
    - '3.10'
    - '3.9'
    - '3.8'
    - '3.7'
    paths:
    - 'Doc/**'
    - 'Misc/**'
    - '.github/workflows/doc.yml'

permissions:
  contents: read

concurrency:
  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
  cancel-in-progress: true

jobs:
  build_doc:
    name: 'Docs'
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v3
    - name: Register Sphinx problem matcher
      run: echo "::add-matcher::.github/problem-matchers/sphinx.json"
    - name: 'Set up Python'
      uses: actions/setup-python@v4
      with:
        python-version: '3'
        cache: 'pip'
        cache-dependency-path: 'Doc/requirements.txt'
    - name: 'Install build dependencies'
      run: make -C Doc/ venv
    - name: 'Check documentation'
      run: make -C Doc/ check
    - name: 'Build HTML documentation'
      run: make -C Doc/ SPHINXOPTS="-q" SPHINXERRORHANDLING="-W --keep-going" html

  # Run "doctest" on HEAD as new syntax doesn't exist in the latest stable release
  doctest:
    name: 'Doctest'
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v3
    - name: Register Sphinx problem matcher
      run: echo "::add-matcher::.github/problem-matchers/sphinx.json"
    - uses: actions/cache@v3
      with:
        path: ~/.cache/pip
        key: ubuntu-doc-${{ hashFiles('Doc/requirements.txt') }}
        restore-keys: |
          ubuntu-doc-
    - name: 'Install Dependencies'
      run: sudo ./.github/workflows/posix-deps-apt.sh && sudo apt-get install wamerican
    - name: 'Configure CPython'
      run: ./configure --with-pydebug
    - name: 'Build CPython'
      run: make -j4
    - name: 'Install build dependencies'
      run: make -C Doc/ PYTHON=../python venv
    # Use "xvfb-run" since some doctest tests open GUI windows
    - name: 'Run documentation doctest'
      run: xvfb-run make -C Doc/ PYTHON=../python SPHINXERRORHANDLING="-W --keep-going" doctest