ci: force JS actions to Node 24 (silence Node 20 deprecation) #6

	name: Build & deploy slides site

	# Renders every .pptx listed in events.config.json into web slides and deploys
	# the docs/ site straight to GitHub Pages. Nothing generated is committed back,
	# so local edits never conflict with the bot. Add a .pptx + a config entry and
	# push to publish a new event.

	on:
	push:
	branches: [main]
	paths:
	- "**.pptx"
	- "events.config.json"
	- "build_site.py"
	- "docs/**"
	- ".github/workflows/build-pages.yml"
	workflow_dispatch:

	permissions:
	contents: read
	pages: write
	id-token: write

	# JS 액션들(checkout/configure-pages/deploy-pages 등)을 Node 24로 강제해
	# Node 20 deprecation 경고를 없앤다. 2026-06-16부터는 Node 24가 기본값이 된다.
	env:
	FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: true

	concurrency:
	group: pages
	cancel-in-progress: true

	jobs:
	build-deploy:
	runs-on: ubuntu-latest
	environment:
	name: github-pages
	url: ${{ steps.deploy.outputs.page_url }}
	steps:
	- uses: actions/checkout@v4

	- name: Install LibreOffice, poppler & Korean fonts
	run: \|
	sudo apt-get update
	sudo apt-get install -y --no-install-recommends \
	libreoffice poppler-utils fonts-noto-cjk fonts-nanum
	fc-cache -f >/dev/null 2>&1 \|\| true

	- name: Render slides into docs/
	run: python3 build_site.py

	- uses: actions/configure-pages@v5
	- uses: actions/upload-pages-artifact@v3
	with:
	path: docs

	- id: deploy
	uses: actions/deploy-pages@v4

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