GitHub workflow to render all Rmd files in a GitHub repo, e.g. for testing student assignments

.github-workflows-main.yml

# from https://github.com/cboettig/compendium/blob/master/.github/workflows/main.yml
on: [push]

name: render all R Markdown documents 

jobs:
  render:
    name: render all R Markdown documents 
    runs-on: macOS-latest
    steps:
      - uses: actions/checkout@v1
      - uses: r-lib/actions/setup-r@v1
      - uses: r-lib/actions/setup-pandoc@v1
      - uses: r-lib/actions/setup-tinytex@master
      - name: Install known depedencies  
        run: |
          Rscript -e "install.packages(c('bookdown', 'tidyverse', 'rmarkdown', 'knitr', 'devtools', 'here'))"
          Rscript -e "devtools::install_github('ThinkR-open/attachment')"
      - name: Install unknown depedencies 
        run: |
          Rscript -e "attachment::install_if_missing(attachment::att_from_rmds(path = '.'))"
      - name: render all R Markdown documents 
        run: |
          Rscript -e "lapply(list.files(pattern = 'Rmd|rmd', recursive = TRUE), rmarkdown::render)"