starter-workflows/pages/astro.yml

# Sample workflow for building and deploying an Astro site to GitHub Pages
#
# To get started with Astro see: https://docs.astro.build/en/getting-started/
#
name: Deploy Astro site to Pages

on:
  # Runs on pushes targeting the default branch
  push:
    branches: [$default-branch]

  # 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 one concurrent deployment
concurrency:
  group: "pages"
  cancel-in-progress: true

env:
  PAT: "." # default value when not using subfolders
  # PAT: subfolder

jobs:
  build:
    name: Build & Deploy
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: actions/setup-node@v3
        with:
          node-version: 16
          cache-dependency-path: ${{ env.PAT }}/package-lock.json
      - run: npm install && npm run build
        working-directory: ${{ env.PAT }}
      - uses: actions/upload-pages-artifact@v1
        with:
          path: ${{ env.PAT }}/dist

  deploy:
    needs: build
    name: Deploy
    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@v1