clear-previews.yml

name: Remove doc preview of closed PRs

on:
  pull_request:
    types: [closed]

concurrency:
  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
  cancel-in-progress: true

env:
  NODE_VERSION: lts/*

permissions: {}

jobs:
  remove-preview:
    runs-on: ubuntu-latest
    if: github.repository == 'nodejs/node'
    concurrency:
      group: node-pr-doc-preview
      cancel-in-progress: false
    steps:
      - name: Check out the gh-pages branch
        uses: actions/checkout@v3
        with:
          # We want to persist credentials so we can push to gh-pages
          persist-credentials: true
          ref: gh-pages
          repository: ${{ github.repository_owner }}/node-pr-doc-preview
          # A personal token is required GITHUB_TOKEN cannot be configured to
          # have write access on a repo except the one the action runs on.
          # It needs to be set here because `checkout` configures GitHub
          # authentication for push as well.
          token: ${{ secrets.GH_USER_TOKEN }}
      - name: Erase previous version (if it exists)
        run: |
          git config user.email "github-bot@iojs.org"
          git config user.name "Node.js GitHub Bot"
          git rm -rf "${{ github.event.pull_request.number }}" || true
          git diff --quiet HEAD || (\
            git commit -m "Remove preview for ${{ github.event.pull_request.html_url }}" &&\
            git push origin HEAD:gh-pages \
          )