dependabot-automerge.yml

name: dependabot merger

on:
  pull_request:
    branches: [ main ]

jobs:
  review-pr:
    runs-on: ubuntu-latest
    if: ${{ github.actor == 'dependabot[bot]' &&
      github.event_name == 'pull_request' }}
    permissions:
      pull-requests: write
      contents: write
    steps:
      - name: dependabot metadata
        id: metadata
        uses: dependabot/fetch-metadata@v1.5.1
        with:
          github-token: '${{ secrets.GITHUB_TOKEN }}'
      - name: comment major updates
        if : ${{steps.metadata.outputs.update-type == 'version-update:semver-major' }}
        run: |
          gh pr comment $PR_URL --body "PR **not approved** because it includes a major update of a dependency"
          gh pr edit $PR_URL --add-label "please review"
        env:
          PR_URL: ${{github.event.pull_request.html_url}}
          GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
      - name: approve and merge
        if: ${{steps.metadata.outputs.update-type == 'version-update:semver-patch' ||
          steps.metadata.outputs.update-type == 'version-update:semver-minor'}}
        run: |
          gh pr review --approve "$PR_URL"
          gh pr merge --auto --squash "$PR_URL"
        env:
          PR_URL: ${{github.event.pull_request.html_url}}
          GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}