auto-merge-dependabot.yml

name: Auto-approve and merge Dependabot PRs

on:
  pull_request_target:
    types:
      - opened
      - synchronize
      - reopened

jobs:
  auto-approve:
    runs-on: ubuntu-latest

    steps:
      - name: Auto-approve Dependabot PR
        if: github.actor == 'dependabot[bot]'
        uses: hmarr/auto-approve-action@v3
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}

  auto-merge:
    needs: auto-approve
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Find PR number
        id: find_pr
        run: |
          PR_NUMBER=$(gh pr list --state open --author "dependabot[bot]" --json number --jq '.[0].number')
          echo "PR_NUMBER=$PR_NUMBER"
          echo "::set-output name=PR_NUMBER::$PR_NUMBER"
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Debug PR Number
        run: |
          echo "Retrieved PR_NUMBER: $PR_NUMBER"
          echo "Retrieved steps.find_pr.outputs.PR_NUMBER: ${{ steps.find_pr.outputs.PR_NUMBER }}"
        env:
          PR_NUMBER: ${{ env.PR_NUMBER }}

      - name: Enable auto-merge
        if: ${{ steps.find_pr.outputs.PR_NUMBER != '' }}
        run: gh pr merge --auto --squash "$PR_NUMBER"
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}