premerge.yml

name: Deploy PR previews

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

  workflow_dispatch:

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

# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
permissions:
  contents: write
  pages: write
  id-token: write
  pull-requests: write

jobs:
  deploy-preview:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Setup Ruby
        uses: ruby/setup-ruby@v1
        with:
          ruby-version: '3.0'
          bundler-cache: true
          cache-version: 0 # Increment this number if you need to re-download cached gems
      - name: Regenerate templates
        run: ./regen.py
      - name: Build with Jekyll
        run: bundle exec jekyll build --baseurl "/msm/pr-preview/pr-${{github.event.number}}"
      - name: Upload artifact
        uses: actions/upload-pages-artifact@v3
      - name: Deploy preview
        uses: rossjrw/pr-preview-action@v1
        with:
          source-dir: ./_site/
          preview-branch: gh-pages
          umbrella-dir: pr-preview