deploy_bookdown.yml

on:
  push:
     branches:
       - main

name: deploy_bookdown

jobs:
  bookdown:
    name: bookdown
    runs-on: macOS-latest
    steps:
      - uses: actions/checkout@v2
      - uses: r-lib/actions/setup-r@v1
      - uses: r-lib/actions/setup-pandoc@v1
      - name: Cache Renv packages
        uses: actions/cache@v2
        with:
          path: ~/Library/Caches/org.R-project.R/R/renv
          key: renv-${{ hashFiles('**/renv.lock') }}
          restore-keys: |
            renv-
            
      - name: Cache bookdown outputs
        uses: actions/cache@v2
        with:
          path: _book
          key: bookdown-${{ hashFiles('**/*Rmd') }}
          restore-keys: |
            bookdown-
          
      - name: Install R packages
        run: |
          R -e 'install.packages("renv")'
          R -e 'renv::restore()'

      - name: Render Book
        run: Rscript -e 'bookdown::render_book()'
        
      - uses: actions/upload-artifact@v2.3.1
        with:
          name: _book
          path: _book/
  
# Published to `gh-pages` branch
  checkout-and-deploy:
   runs-on: ubuntu-latest
   needs: bookdown
   steps:
     - name: Checkout
       uses: actions/checkout@v2
     - name: Download artifact
       uses: actions/download-artifact@v2
       with:
         # Optional artifact name
         name: _book
         # Optional destination path
         path: _book
     - name: Deploy to GitHub Pages
       uses: JamesIves/github-pages-deploy-action@v4.2.5
       with:
         branch: gh-pages # The branch the action should deploy to.
         folder: _book # The folder the action should deploy.