publish-demo.yaml

# A workflow to publish the demo to GitHub Pages.
name: Publish Demo

# Runs on push to main.
on:
  push:
    branches:
      - main
  # For manual debugging:
  workflow_dispatch:
    inputs:
      ref:
        description: "The ref to build from."
        required: true
        type: string

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  build:
    name: Build
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          ref: ${{ inputs.ref || github.ref }}
          persist-credentials: false

      - name: Build
        run: npm ci && npm run build

      - name: Clean
        run: rm -rf node_modules

      - name: Upload artifacts
        uses: actions/upload-pages-artifact@v3
        with:
          path: .

  publish:
    name: Publish updated demo
    needs: build
    runs-on: ubuntu-latest

    # Grant GITHUB_TOKEN the permissions required to deploy to Pages
    permissions:
      pages: write
      id-token: write

    # Deploy to the github-pages environment
    environment:
      name: github-pages
      url: ${{ steps.deployment.outputs.page_url }}

    steps:
      - name: Deploy to GitHub Pages
        id: deployment
        uses: actions/deploy-pages@v4