approve.yml

name: Auto approve PRs by bots

on:
  # Trigger when any action on a pull request is taken.
  pull_request_target:

jobs:
  approve:
    runs-on: ubuntu-latest

    permissions:
      pull-requests: write  # Allows approving the PR.
      contents: write  # Allows merging the PR.

    # Only run if one of the defined bots is the pull request author.
    # https://github.com/City-of-Helsinki/tilavarauspalvelu-core/settings/variables/actions
    if: contains(fromJSON(vars.BOTS), github.event.pull_request.user.login)

    steps:
      - name: "Check out repository"
        uses: actions/checkout@v4

      - name: "Approve a pull request and set to auto rebase-merge if tests pass"
        # Only approve the PR if it's not already approved to avoid email spam.
        run: |
          gh pr checkout "$PR_URL"
          if [ "$(gh pr status --json reviewDecision -q .currentBranch.reviewDecision)" != "APPROVED" ];
          then gh pr review --approve "$PR_URL"
          else echo "PR already approved.";
          fi
          gh pr merge --auto --rebase "$PR_URL"
        env:
          PR_URL: ${{ github.event.pull_request.html_url }}
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}