# Workflow derived from https://github.com/r-lib/actions/blob/v2-branch/examples/render-rmarkdown.yaml

on:
  push:
    paths: 'README.Rmd'

name: Render README

jobs:
  render-readme:
    runs-on: ubuntu-latest
    env:
      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
    steps:
      - name: Checkout repo
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - uses: r-lib/actions/setup-pandoc@v2
      - uses: r-lib/actions/setup-r@v2

      - name: Install Rmarkdown
        run: Rscript -e 'install.packages("rmarkdown")'
      
      - name: Render README
        run: |
          RMD_PATH=($(git diff --name-only ${{ github.event.before }} ${{ github.sha }} | grep '^README.Rmd$'))
          Rscript -e 'for (f in commandArgs(TRUE)) if (file.exists(f)) rmarkdown::render(f)' ${RMD_PATH[*]}
          
      - name: Commit results
        run: |
          git config --local user.name "$GITHUB_ACTOR"
          git config --local user.email "$GITHUB_ACTOR@users.noreply.github.com"
          git commit README.md -m 'doc: render README' || echo "No changes to commit"
          git push origin || echo "No changes to commit"
