name: test-docs
on:
  workflow_dispatch:
  pull_request:

jobs:
  pre_job:
    runs-on: ubuntu-latest
    outputs:
      should_skip: ${{ steps.skip_check.outputs.should_skip }}
    steps:
      - id: skip_check
        uses: fkirc/skip-duplicate-actions@master
        with:
          skip_after_successful_duplicate: "true"
          paths: '["docs/**", ".github/workflows/docs.yml"]'
          do_not_skip: '["workflow_dispatch"]'

  test-build-documentation:
    name: Test building docs
    needs: pre_job
    if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
        with:
          fetch-depth: 0

      - uses: actions/setup-python@v2
        with:
          python-version: 3.x

      - name: Install Python dependencies
        run: pip install -r docs/requirements.txt

      - name: Build docs with mkdocs
        run: |
          cd docs
          mkdocs build