build_bookdown.yaml

on:
  push: 
  pull_request:

name: Build and deploy book

jobs: 

  build_bookdown:
    name: "Build Bookdown Site"
    runs-on: ubuntu-latest
    steps:
      - name: Checkout Repo
        uses: actions/checkout@v3
        with: 
           ref: ${{github.ref}}
        
      - name: Setup R
        uses: r-lib/actions/setup-r@v2
        with:
           use-public-rspm: true
           r-version: "4.0.5"
          
      - name: Install System Dependencies
        run: |
          sudo apt-get install pandoc libnlopt-dev libcurl4-openssl-dev 
        
      - name: Render Book
        run: |
           R -e "renv::restore()"
           R -e 'bookdown::render_book(output_dir = "site")'
           touch site/.nojekyll 

      - uses: actions/upload-artifact@v3
        with:
          name: site
          path: site/

  publish_to_ghp: 
    name: "Publish to GitHub Pages"
    if: ${{github.ref}} == "main" &  github.event_name != 'pull_request'
    runs-on: ubuntu-latest
    needs: build_bookdown
    steps:
    - name: Checkout Repo
      uses: actions/checkout@v3
      with: 
        ref: ${{github.ref}}
    - uses: actions/download-artifact@v4.1.7
      with: 
        name: site
        path: site/
    - uses: JamesIves/github-pages-deploy-action@v4
      with:
        branch: gh-pages
        folder: site