Deploy Bookdown with GIthub actions, modified from https://gist.github.com/matteodelucchi/c8d3e584387bf6980411c03e05283d31 - Example repo at: https://github.com/toniher/bookdown_test

deploy_bookdown.yml

on:
  push:
     branches:
     # Default branches below
       - main
       - master


name: renderbook

jobs:
  bookdown:
    name: Render-Book
    runs-on: ubuntu-20.04
    steps:
      - uses: actions/checkout@v2
      # More detail here, https://github.com/r-lib/actions
      # It's possible to define R and pandoc version if desired
      - uses: r-lib/actions/setup-r@v1
      - uses: r-lib/actions/setup-pandoc@v1
      - name: Install rmarkdown
        run: Rscript -e 'install.packages(c("rmarkdown","bookdown"))'
      - name: Render Book
        run: Rscript -e 'bookdown::render_book("index.Rmd")'
      - uses: actions/upload-artifact@v2
        with:
          name: _book
          path: _book/
  
# Need to first create an empty gh-pages branch
# see https://pkgdown.r-lib.org/reference/deploy_site_github.html
# and also add secrets for a GH_PAT and EMAIL to the repository
# gh-action from Cecilapp/GitHub-Pages-deploy
  checkout-and-deploy:
   runs-on: ubuntu-20.04
   needs: bookdown
   steps:
     - name: Checkout
       uses: actions/checkout@v2
     - name: Download artifact
       uses: actions/download-artifact@v2
       with:
         # Artifact name
         name: _book # optional
         # Destination path
         path: _book # optional
     - name: Deploy to GitHub Pages
       uses: Cecilapp/GitHub-Pages-deploy@v3
       with:
         email: ${{ secrets.EMAIL }}
         build_dir: _book # optional
       env:
         GITHUB_TOKEN: ${{ secrets.GH_PAT }} # https://github.com/settings/tokens