automatic_image_genration.yml

name: Automatic Image Generation

on:
  push:
    paths:
      - 'src/plantuml/**'
      - 'src/drawio/**'
  workflow_dispatch:

jobs:
  generate_images:
    runs-on: ubuntu-latest

    steps:
    - name: Checkout repository
      uses: actions/checkout@v4  # Updated to Node.js 20 compatible version
      with:
        fetch-depth: 0  # Ensures all commits are fetched

    - name: Set up JDK 11
      uses: actions/setup-java@v3.11.0  # Updated to Node.js 20 compatible version
      with:
        distribution: 'temurin'
        java-version: '11'

    - name: Install dependencies
      run: |
        sudo apt-get update
        sudo apt-get install -y graphviz xdotool xvfb
        sudo snap install drawio --classic

    - name: Download PlantUML jar
      run: |
        wget https://github.com/plantuml/plantuml/releases/latest/download/plantuml.jar -O /usr/local/bin/plantuml.jar

    - name: Check for changed files
      id: changed_files
      run: |
        BASE_SHA=$(git rev-parse HEAD^1)
        CHANGED_FILES=$(git diff --name-only $BASE_SHA HEAD | grep -E 'src/plantuml/.*\.puml|src/drawio/.*\.drawio' || true)
        echo "changed_files=$CHANGED_FILES" >> $GITHUB_ENV
        echo "::set-output name=changed_files::$CHANGED_FILES"
        echo "CHANGED_FILES: $CHANGED_FILES"
        
    - name: Debug changed files
      run: |
        echo "Debug: Changed files are ${{ steps.changed_files.outputs.changed_files }}"

    - name: Generate images from changed PlantUML files
      if: ${{ steps.changed_files.outputs.changed_files }} != ''
      run: |
        for file in $(echo "${{ steps.changed_files.outputs.changed_files }}" | grep 'src/plantuml/.*\.puml' || true); do
          echo "Processing PlantUML file: $file"
          output_dir=$(dirname "$file" | sed 's|^src/plantuml|images|')
          mkdir -p "$output_dir"
          java -jar /usr/local/bin/plantuml.jar -tpng "$file" -o "${PWD}/$output_dir"
          java -jar /usr/local/bin/plantuml.jar -tsvg "$file" -o "${PWD}/$output_dir"
        done

    - name: Generate images from changed drawio files
      if: ${{ steps.changed_files.outputs.changed_files }} != ''
      run: |
        for file in $(echo "${{ steps.changed_files.outputs.changed_files }}" | grep 'src/drawio/.*\.drawio' || true); do
          echo "Processing drawio file: $file"
          output_dir=$(dirname "$file" | sed 's|^src/drawio|images|')
          mkdir -p "$output_dir"
          xvfb-run -a drawio -x -f png -o "${PWD}/$output_dir/$(basename "$file" .drawio).png" "$file"
          xvfb-run -a drawio -x -f svg -o "${PWD}/$output_dir/$(basename "$file" .drawio).svg" "$file"
        done

    - name: Debug images folder
      run: |
        echo "Contents of the images folder:"
        ls -R images

    - name: Commit and push generated images
      if: ${{ steps.changed_files.outputs.changed_files }} != ''
      run: |
        git config --global user.name 'github-actions'
        git config --global user.email 'github-actions@github.com'
        git add -A images
        git commit -m "Generate images from changed PlantUML and drawio files"
        git push
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}