name: Check links
on:
  schedule:
    - cron: '0 12 * * 3'
  workflow_dispatch:

permissions:
  contents: read

jobs:
  check:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v3
      - name: Set up Python
        uses: actions/setup-python@v4
        with:
          python-version: '3.10'
      - name: Install dependencies
        run: |
          python -m pip install --upgrade pip
          pip install -r requirements.txt
      - name: Check external links
        run: make linkcheck
        env:
          SPHINXOPTS: --color