mend #8

	name: Render PlantUML Diagrams

	on:
	push: {master}

	workflow_dispatch: # manual trigger via GitHub UI

	jobs:
	plantuml:
	runs-on: ubuntu-latest
	permissions:
	contents: write # Required to push changes back to the repository

	steps:
	- name: Checkout
	uses: actions/checkout@v3
	with:
	token: ${{ secrets.GITHUB_TOKEN }}

	- name: Set up Java
	uses: actions/setup-java@v4
	with:
	distribution: 'temurin'
	java-version: '17'

	- name: Install GraphViz
	run: sudo apt-get update && sudo apt-get install -y graphviz

	- name: Download PlantUML jar
	run: curl -L -o plantuml.jar https://github.com/plantuml/plantuml/releases/download/v1.2024.7/plantuml-1.2024.7.jar

	# Optionally check the SHA256 checksum to avoid corrupt downloads
	# - name: Verify PlantUML jar checksum
	# run: echo "<expected_sha256_here> plantuml.jar" \| sha256sum -c -

	- name: Render .puml to .svg
	run: \|
	find ./example -name '*.puml' -exec java -jar plantuml.jar -tsvg -o . {} +

	- name: Commit rendered diagrams
	run: \|
	git config --global user.name "github-actions[bot]"
	git config --global user.email "github-actions[bot]@users.noreply.github.com"
	git add example/*.svg

	if git diff --cached --quiet; then
	echo "No diagram changes to commit."
	else
	git commit -m "auto-rendered PlantUML diagrams"
	git push
	fi

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