pr.yml

name: Publish PR to gh-pages/pr/
on:
  pull_request:
    branches: [ main ]
jobs:
  build:
    runs-on: ubuntu-latest
    if: ${{ github.event.number }}
    steps:
      - uses: actions/checkout@v3
      - uses: ljharb/actions/node/install@main
        name: 'nvm install lts/* && npm install'
        with:
          node-version: lts/*
      - run: npm run build
      - name: Deploy
        uses: JamesIves/github-pages-deploy-action@4.1.4
        with:
          branch: gh-pages
          folder: build
          target-folder: pr/${{ github.event.number }}/
      - id: get-preview-url
        name: Get preview url
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          url=(gh api "repos/$GITHUB_REPOSITORY/pages" --jq '.html_url')
          echo "preview-url=https://tc39.es/$(basename $GITHUB_REPOSITORY)/pr/${{ github.event.number }}" >> "$GITHUB_OUTPUT"
        shell: bash
      - name: Post Preview Comment
        uses: phulsechinmay/rewritable-pr-comment@v0.3.0
        with:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          COMMENT_IDENTIFIER: tc39_pr_preview_comment
          message: |
            A preview of this PR can be found at ${{ steps.get-preview-url.outputs.preview-url }}.