dependabot-automerge.yml

# The name of the workflow
name: Automerge Dependabot PRs

# The event that triggers the workflow
on:
  workflow_call:

jobs:
  dependabot:
    # The name of the job
    name: Merge dependabot
    # The type of runner that the job will run on
    runs-on: ubuntu-latest
    # The permissions for the GITHUB_TOKEN
    permissions:
      contents: write
      pull-requests: write
    # Conditional statement to run the job only when the event was triggered by 'dependabot[bot]'
    if: ${{ github.actor == 'dependabot[bot]' }}

    steps:
      - name: Dependabot metadata
        id: dependabot-metadata
        # Use 'dependabot/fetch-metadata' to fetch the metadata about the update
        uses: dependabot/fetch-metadata@v1.6.0

      - name: Approve patch and minor updates
        # Conditional statement to run the steps only when the update type is a patch or minor
        if: ${{steps.dependabot-metadata.outputs.update-type == 'version-update:semver-patch' || steps.dependabot-metadata.outputs.update-type == 'version-update:semver-minor'}}
        run: |
          # Command to merge the PR
          gh pr merge --auto --merge "$PR_URL"
          # Command to approve the PR with a custom message
          gh pr review $PR_URL --approve -b "I'm **approving** this pull request because **it includes a patch or minor update**"
        env:
          # The URL of the PR to be merged and approved
          PR_URL: ${{github.event.pull_request.html_url}}
          # The GitHub token secret
          GITHUB_TOKEN: ${{secrets.BOT_TOKEN}}