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GA設定の整理: 外部リンク二重計測の解消・about.md の重複公開修正ほか #47

	name: Deploy Astro site to Pages

	on:
	push:
	branches: [ "main" ]
	workflow_dispatch:

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

	concurrency:
	group: "pages"
	cancel-in-progress: false

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v5
	with:
	fetch-depth: 0

	- name: Setup Node.js
	uses: actions/setup-node@v6
	with:
	node-version: "22"
	cache: 'npm'

	- name: Install dependencies
	run: npm install

	- name: Create .env
	run: \|
	echo "PUBLIC_GA_ID=${{ secrets.GA_ID }}" >> .env

	- name: Build
	run: npm run build

	- name: Setup Pages
	uses: actions/configure-pages@v6

	- name: Upload artifact
	uses: actions/upload-pages-artifact@v5
	with:
	path: ./dist

	deploy:
	needs: build
	runs-on: ubuntu-latest
	environment:
	name: github-pages
	url: ${{ steps.deployment.outputs.page_url }}
	steps:
	- name: Deploy to GitHub Pages
	id: deployment
	uses: actions/deploy-pages@v5