name: Attach release tarball

on:
  release:
    types: [published]

permissions:
  contents: write

jobs:
  tarball:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v5

      - name: Create tarball with fixed directory name
        run: |
          # Re-pack the repo into haven/ so the path never changes between versions
          mkdir -p /tmp/haven
          rsync -a --exclude='.git' . /tmp/haven/
          tar -czf haven.tar.gz -C /tmp haven

      - name: Upload to release
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: gh release upload "${{ github.event.release.tag_name }}" haven.tar.gz --clobber