update-webmentions.yml

name: Update Webmentions

on:
  workflow_dispatch: # Allow running on-demand
  schedule:
    # Every Monday at 8:00 UTC (4:00 Eastern)
    - cron: '0 8 * * 1'

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  update:
    name: Update Webmentions
    runs-on: ubuntu-latest
    env:
      BRANCH_NAME: auto-webmentions
    steps:
      - uses: actions/checkout@v4
        with:
          # Use a separate key so the resulting PR also runs GH Actions
          # https://github.com/peter-evans/create-pull-request/blob/main/docs/concepts-guidelines.md#triggering-further-workflow-runs
          ssh-key: ${{ secrets.DEPLOY_KEY }}
      - uses: actions/setup-node@v4
        with:
          node-version-file: .nvmrc
          cache: yarn
      - run: yarn install
      - run: yarn webmentions
        env:
          WEBMENTION_IO_TOKEN: ${{ secrets.WEBMENTION_IO_TOKEN }}
      - name: Commit & push changes
        run: |
          git config user.name github-actions
          git config user.email github-actions@github.com
          git add .
          git commit -m "Automated webmentions update"
          git push -f origin ${{ github.ref_name }}:$BRANCH_NAME
      - name: Open pull request if needed
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          PR=$(gh pr list --head $BRANCH_NAME --json number -q '.[0].number')
          if [ -z $PR ]; then
            gh pr create \
            --head $BRANCH_NAME \
            --title "Automated webmentions update" \
            --body "Full log: https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}"
          else
            echo "Pull request already exists, won't create a new one."
          fi