auto-merge.yml

name: Dependabot auto-merge
on: pull_request

permissions:
  contents: write
  pull-requests: write
  checks: read
  statuses: read

jobs:
  dependabot:
    runs-on: ubuntu-latest
    if: github.event.pull_request.user.login == 'dependabot[bot]'
    steps:
      - name: Checkout repository
        uses: actions/checkout@v6
        with:
          fetch-depth: 0

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

      - name: Wait for checks to pass
        run: |
          MAX_RETRIES=6
          RETRY_INTERVAL=300
          ATTEMPT=0
          while [ $ATTEMPT -lt $MAX_RETRIES ]; do
            echo "Fetching PR status checks..."
            WORKFLOWS=$(gh pr view "$PR_URL" --json statusCheckRollup -q '.statusCheckRollup')
            all_passed=true
            while IFS= read -r check; do
              name=$(jq -r '.name' <<< "$check")
              status=$(jq -r 'if .type == "CheckRun" then .conclusion else .state end' <<< "$check")
              if [[ "$name" != "Dependabot auto-merge" && "$status" != "SUCCESS" ]]; then
                all_passed=false
                echo "Failed check: $name - Status: $status"
                break
              fi
            done < <(echo "$WORKFLOWS" | jq -c '.[]')
            if $all_passed; then
              echo "All checks passed. Merging PR."
              exit 0
            else
              echo "Some checks failed. Retrying in $RETRY_INTERVAL seconds..."
              sleep $RETRY_INTERVAL
              ATTEMPT=$((ATTEMPT + 1))
            fi
          done
          echo "Failed to merge after $MAX_RETRIES attempts."
          exit 1
        env:
          PR_URL: ${{ github.event.pull_request.html_url }}
          GH_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}}