name: Dependabot auto-merge

on:
  pull_request:
    branches:
    - master

permissions:
  issues: write
  contents: write
  pull-requests: write

jobs:
  auto-merge:
    runs-on: ubuntu-latest
    if: github.actor == 'dependabot[bot]'
    steps:
      - name: Dependabot metadata
        id: dependabot-metadata
        uses: dependabot/fetch-metadata@v1
        with:
          github-token: '${{ secrets.GITHUB_TOKEN }}'
      - name: Enable auto-merge for Dependabot PRs
        if: contains(fromJSON('["version-update:semver-patch", "version-update:semver-minor"]'), steps.dependabot-metadata.outputs.update-type)
        run: gh pr merge --auto --squash "$PR_URL"
        env:
          PR_URL: ${{github.event.pull_request.html_url}}
          GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}