dependabot-auto-merge.yml

name: Dependabot auto-merge

on:
  pull_request_target:
    types: [opened, reopened, synchronize, ready_for_review]

permissions:
  contents: write
  pull-requests: write

jobs:
  automerge:
    name: Auto-merge Dependabot patch updates
    runs-on: ubuntu-latest

    # Only run on Dependabot PRs
    if: github.event.pull_request.user.login == 'dependabot[bot]'

    steps:
      - name: Fetch Dependabot metadata
        id: meta
        uses: dependabot/fetch-metadata@v2
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}

      - name: Approve PR
        run: gh pr review --approve "$PR_URL"
        env:
          PR_URL: ${{ github.event.pull_request.html_url }}
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Auto-merge patch updates only
        if: steps.meta.outputs.update-type == 'version-update:semver-patch'
        run: gh pr merge --auto --squash "$PR_URL"
        env:
          PR_URL: ${{ github.event.pull_request.html_url }}
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}