support gracefully shutdown #35

	# Sample workflow for building and deploying a VitePress site to GitHub Pages
	#
	name: Pages

	on:
	# Runs on pushes targeting the `main` branch. Change this to `master` if you're
	# using the `master` branch as the default branch.
	push:
	branches: [ v4 ]

	# Allows you to run this workflow manually from the Actions tab
	workflow_dispatch:

	# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
	permissions:
	contents: read
	pages: write
	id-token: write

	# Allow only one concurrent deployment, skipping runs queued between the run in-progress and latest queued.
	# However, do NOT cancel in-progress runs as we want to allow these production deployments to complete.
	concurrency:
	group: pages
	cancel-in-progress: false

	jobs:
	# Build job
	build:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v3
	- name: Setup Node
	uses: actions/setup-node@v3
	with:
	node-version: 18
	cache: npm
	cache-dependency-path: docs/package-lock.json
	- name: Setup Pages
	uses: actions/configure-pages@v3
	- name: Install dependencies
	run: npm ci # or pnpm install / yarn install
	working-directory: docs
	- name: Build with VitePress
	run: npm run docs:build # or pnpm docs:build / yarn docs:build
	working-directory: docs
	- name: Upload artifact
	uses: actions/upload-pages-artifact@v2
	with:
	path: docs/.vitepress/dist

	# Deployment job
	deploy:
	environment:
	name: github-pages
	url: ${{ steps.deployment.outputs.page_url }}
	needs: build
	runs-on: ubuntu-latest
	name: Deploy
	steps:
	- name: Deploy to GitHub Pages
	id: deployment
	uses: actions/deploy-pages@v2

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