build-and-deploy.yaml

name: Build and Deploy Quarto Site

on:
  push:
    branches:
      - main  
  pull_request:
    branches:
      - main  
  workflow_dispatch:

env:
  GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}


jobs:
  reduce-images:
    runs-on: ubuntu-latest
    
    steps:
    - name: Checkout repository
      uses: actions/checkout@v4
      with:
        ref: main
    
    - name: Check for large image files
      id: large-img-check
      run: |
        img_path=$(du -ah --threshold=1M | awk '/.(JPE?G|jpe?g|PNG|png|HEIC|heic)$/ {print $2}')
        echo "$img_path"
        if [[ -n "$img_path" ]]; then
          echo "big_image=true" >> $GITHUB_OUTPUT
          echo "img_path=$(echo $img_path)" >> $GITHUB_OUTPUT
        fi
    - name: Install ImageMagick
      if: steps.large-img-check.outputs.big_image == 'true'
      run: |
        cd ..
        wget https://imagemagick.org/archive/binaries/magick -o magick
        chmod +x magick

    - name: Shrink images
      if: steps.large-img-check.outputs.big_image == 'true'
      env:
        img_path: ${{ steps.large-img-check.outputs.img_path }}
      run: |
        for image in $img_path; do
          mogrify -resize 800 -quality 75 "$image"
        done
      #   Body width in Quarto documents is 800 px by default
      #   https://quarto.org/docs/output-formats/page-layout.html#html-page-layout
      #   ImageMagick mogrify docs: https://imagemagick.org/script/mogrify.php
    
    
    - name: Push changes
      if: steps.large-img-check.outputs.big_image == 'true'
      run: |
          git config user.name github-actions
          git config user.email github-actions@github.com
          git add --all
          git commit --allow-empty -m "[auto] Reduce image file size"
          git push origin HEAD:main


    
  build-deploy:
    needs: reduce-images
    runs-on: ubuntu-latest
    container: eco4cast/rocker-neon4cast:latest
      
    steps:
    - run: git config --global --add safe.directory /__w/efi-ci-workshop-2024/efi-ci-workshop-2024
    
    - name: Checkout repository
      uses: actions/checkout@v3
      with:
        ref: main
        fetch-depth: 0
        set-safe-directory: '*'

    - name: Set up Quarto
      uses: quarto-dev/quarto-actions/setup@v2
      with:
        version: 1.4.146

    - name: Render
      run: |
        quarto render
        
    - name: Publish
      run: |
        git config user.name github-actions
        git config user.email github-actions@github.com
        git checkout gh-pages
        cp -r docs/* .
        git add .
        git commit -a -m "update pages" || echo "nothing to commit"
        git push https://${GITHUB_PAT}:${GITHUB_PAT}@github.com/${GITHUB_REPOSITORY}