dependabot-auto-merge.yml

name: 🤖 Dependabot auto-merge
on: pull_request

permissions:
  contents: write
  pull-requests: write

jobs:
  dependabot:
    runs-on: ubuntu-latest

    if: github.actor == 'dependabot[bot]'
    steps:
      - name: Approve PR
        run: gh pr review --approve "$PR_URL"
        env:
          PR_URL: ${{github.event.pull_request.html_url}}
          GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}

      - name: Fetch PR metadata
        id: metadata
        uses: dependabot/fetch-metadata@v2

      # requires "Allow auto-merge" in settings
      # https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/incorporating-changes-from-a-pull-request/automatically-merging-a-pull-request
      - name: Enable Auto-Merge on PR with minor and patch updates
        if: contains(fromJSON('["version-update:semver-minor", "version-update:semver-patch"]'), steps.metadata.outputs.update-type)
        run: gh pr merge --auto --rebase "$PR_URL"
        env:
          PR_URL: ${{ github.event.pull_request.html_url }}
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}