request-review.yml

name: PR - Request Reviewer

on:
  pull_request:
    types: [opened,reopened,ready_for_review]

jobs:
  add-reviewer:
    runs-on: ubuntu-latest
    if: vars.PR_DEFAULT_REVIEWER != '' && !github.event.pull_request.draft
    steps:
      - name: Check for reviewers
        id: check
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          requested=$(gh pr view -R '${{github.repository}}' ${{ github.event.pull_request.number }} --json reviewRequests --jq '.reviewRequests | length')
          completed=$(gh pr view -R '${{github.repository}}' ${{ github.event.pull_request.number }} --json reviews --jq '.reviews | length')
          total=$((requested + completed))
          echo "total_reviews=$total" >> $GITHUB_OUTPUT
      - name: Request review
        if: steps.check.outputs.total_reviews == '0' && vars.PR_DEFAULT_REVIEWER != github.event.pull_request.user.login
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          PR_DEFAULT_REVIEWER: ${{ vars.PR_DEFAULT_REVIEWER }}
        run: |
          gh pr edit -R '${{github.repository}}' ${{ github.event.pull_request.number }} --add-reviewer "$PR_DEFAULT_REVIEWER"