dependabot-reviewer.yml

name: dependabot-reviewer
on: pull_request_target
permissions:
  pull-requests: write
  contents: write
  repository-projects: read
jobs:
  review-dependabot-pr:
    runs-on: ubuntu-latest
    if: ${{ github.event.pull_request.user.login == 'dependabot[bot]' }}
    steps:
      - name: Dependabot metadata
        id: dependabot-metadata
        uses: dependabot/fetch-metadata@v2
      - uses: actions/checkout@v4
      - name: Approve a PR if not already approved
        id: check-approval
        run: |
          gh pr checkout "$PR_URL"
          echo "approved=true" >> "$GITHUB_OUTPUT"
          if [ "$(gh pr status --json reviewDecision -q .currentBranch.reviewDecision)" != "APPROVED" ];
          then echo "approved=false" >> "$GITHUB_OUTPUT";
          else echo "PR already approved, skipping additional approvals to minimize emails/notification noise.";
          fi
        env:
          PR_URL: ${{github.event.pull_request.html_url}}
          GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
      - name: Enable auto-merge for Dependabot PRs
        run: gh pr merge --auto --squash "$PR_URL"
        env:
          PR_URL: ${{github.event.pull_request.html_url}}
          GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
      - name: Approve patch and minor updates
        if: ${{(steps.dependabot-metadata.outputs.update-type == 'version-update:semver-patch' || steps.dependabot-metadata.outputs.update-type == 'version-update:semver-minor') && steps.check-approval.outputs.approved != 'true'}}
        run: gh pr review $PR_URL --approve -b "I'm **approving** this pull request because **it includes a patch or minor update**"
        env:
          PR_URL: ${{github.event.pull_request.html_url}}
          GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
      - name: Approve major updates of development dependencies
        if: ${{(steps.dependabot-metadata.outputs.update-type == 'version-update:semver-major' && steps.dependabot-metadata.outputs.dependency-type == 'direct:development') && steps.check-approval.outputs.approved != 'true'}}
        run: gh pr review $PR_URL --approve -b "I'm **approving** this pull request because **it includes a major update of a dependency used only in development**"
        env:
          PR_URL: ${{github.event.pull_request.html_url}}
          GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
      - name: Comment on major updates of non-development dependencies
        if: ${{(steps.dependabot-metadata.outputs.update-type == 'version-update:semver-major' && steps.dependabot-metadata.outputs.dependency-type == 'direct:production') && steps.check-approval.outputs.approved != 'true'}}
        run: |
          if [ "$(gh pr view --json comments --jq '[.comments[] | select(.author.login == "github-actions") | .body | contains("not approving")] | any')" != "true" ];
          then 
            gh pr comment $PR_URL --body "I'm **not approving** this PR because **it includes a major update of a dependency used in production**";
            gh pr edit $PR_URL --add-label "requires-manual-qa";
          else echo "PR already approved, skipping additional approvals to minimize emails/notification noise.";
          fi
        env:
          PR_URL: ${{github.event.pull_request.html_url}}
          GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}