extract-images.yml

# Extract the coverpages from the pdfs in ./pdf, as images, save then in ./img, so that we can use them as thumbnails in the gallery in 'index.html'.
name: extract_coverpages

on:
  push:
    paths:
      - 'pdf/[0-9]*.pdf'

jobs:
    extract-coverpages:
        runs-on: ubuntu-latest
        steps:
        - name: "Checkout project"
          uses: actions/checkout@v4
        - name: "Set up Python"
          uses: actions/setup-python@v5

        - name: "Install dependencies"
          run: |
            echo "Installing and upgrading pip..."
            python -m pip install --upgrade pip
            echo "installing poppler"
            sudo apt-get install poppler-utils
            echo "Installing pdf2image..."
            pip install pdf2image # For extracting coverpages
    
        - name: "Extract coverpages run python script"
          run: python3 extract-thumbnails.py

        - name: "Commit and push changes"
          run: |
            git config --local user.email "x@example.com"
            git config --local user.name "GitHub Action"
            git add img
            git commit -m "[CI/CD] Extract coverpages"
            git push
            
    add-new-thumbnails-to-gallery:
        needs: extract-coverpages
        runs-on: ubuntu-latest
        steps:
        - name: "Checkout project"
          uses: actions/checkout@v4
        - name: "Set up Python"
          uses: actions/setup-python@v5
    
        - name: "Update index.html with new images."
          run: |
            echo "Updating index.html with new images."
            python3 generate-index.py
            
        - name: "Commit changes"
          run: |
            git config --local user.email "y@example.com"
            git config --local user.name "GitHub Action"
            git add index.html
            git commit -m "[CI/CD] Update index.html with new images"
            git push