preview.yml

# .github/workflows/preview.yml
name: Deploy PR previews

on:
  pull_request:
    types:
      - opened
      - reopened
      - synchronize
      - closed

permissions: write-all
# Re-edit this to see what's needed
#permissions:
#  pull-requests: write
#  contents: write
#  pages: write

concurrency: preview-${{ github.ref }}

jobs:
  deploy-preview:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      
      - name: Install pnpm
        uses: pnpm/action-setup@v4

      - run: echo "PREVIEW_PATH=pr-preview/pr-${{ github.event.number }}" >> "$GITHUB_ENV"

      - name: Install and Build
        if: github.event.action != 'closed' # Skip the build if the PR has been closed
        run: |
          pnpm install --frozen-lockfile
          pnpm run build

      - name: Deploy preview
        uses: rossjrw/pr-preview-action@v1
        with:
          preview-branch: gh-pages
          source-dir: build
          umbrella-dir: pr-preview
          action: auto