preview.yml

name: Deploy PR previews to GitHub Pages
concurrency: preview-${{ github.ref }}
on:
    pull_request:
        types:
            - opened
            - reopened
            - synchronize
            - closed
permissions:
    contents: write
jobs:
    deploy-preview:
        runs-on: ubuntu-latest
        steps:
            - uses: actions/checkout@v3
            - uses: rossjrw/pr-preview-action@v1
              if: contains(['opened', 'reopened', 'synchronize'], ${{ github.event.action }})
              with:
                  source-dir: .
                  preview-branch: gh-pages
                  umbrella-dir: pr-preview
                  action: auto
            - uses: rossjrw/pr-preview-action@v1
              if: github.event.action == 'closed' && !github.event.pull_request.merged
              with:
                  source-dir: .
                  preview-branch: gh-pages
                  umbrella-dir: pr-preview
                  action: remove