auto-merge.yaml

# https://docs.github.com/en/code-security/dependabot/working-with-dependabot/automating-dependabot-with-github-actions
# https://github.com/dependabot/fetch-metadata#enabling-auto-merge

name: Dependabot auto-merge

on: pull_request_target

permissions:
  pull-requests: write
  contents: write

jobs:
  dependabot:
    runs-on: ubuntu-latest
    if: ${{ github.actor == 'dependabot[bot]' }}
    steps:
      - name: Dependabot metadata
        id: metadata
        uses: dependabot/fetch-metadata@v1.6.0
        with:
          github-token: "${{ secrets.GITHUB_TOKEN }}"

      - name: Enable auto-merge for Dependabot PRs
        if: ${{steps.metadata.outputs.update-type == 'version-update:semver-patch'}}
        run: gh pr merge --auto --rebase "$PR_URL"
        env:
          PR_URL: ${{github.event.pull_request.html_url}}
          GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}