main.yml

# Workflow from https://4comprehension.com/github-actions-reveal-js-and-automating-pdf-conversion/
# using Decktape https://github.com/astefanutti/decktape
# another option is https://github.com/bellbind/remarkjs-pdf
name: Create-PDF

# Controls when the workflow will run
# Triggers the workflow on push or pull request events on any branch and when manually
# triggered from the Actions tab
on: [push, pull_request, workflow_dispatch]

# A workflow run is made up of one or more jobs that can run sequentially or in parallel
jobs:
  # This workflow contains a single job called "build"
  build:
    # The type of runner that the job will run on
    runs-on: ubuntu-latest

    # Steps represent a sequence of tasks that will be executed as part of the job
    name: Generate PDF
    steps:
      - name: Create "/presentations" directory
        run: mkdir presentations && sudo chmod 777 presentations
        
      - name: Get List of files
        run: 
          curl https://api.github.com/repos/${{ github.repository }}/contents?ref=gh-pages | grep \"name\" | grep \"*.html\", | cut -d \" -f4 > pagefiles.txt
          
      - name:  Build pdfs   
        run:  
          for f in `cat pagefiles.txt`; do in="https://${{ github.repository_owner }}.github.io/${{ github.event.repository.name }}/${f}"; out="presentations/${f%.html}.pdf"; docker run --rm -t -v `pwd`:/slides -v ~:/home/user astefanutti/decktape $in $out; done
  
      - name: Remove list of files
        run:
         rm pagefiles.txt
      
      - name: Deploy
        uses: peaceiris/actions-gh-pages@v3
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          publish_dir: ./presentations
          publish_branch: pdfs-from-html
          keep_files: true