{{/*
  A wiki's page tree, as nested lists, from `node` down.

  Called with a dict: `node` is the page whose children are listed (the wiki
  itself, or a page with sub-pages), `current` the page being viewed, marked
  so a reader sees where they are. Children are ordered by `weight`, which
  the exporter sets to each page's position among its siblings in the wiki --
  the order the wiki's own navigation showed. A page with sub-pages is a
  branch bundle, a section to Hugo, so `.IsSection` is what says "recurse".
*/}}
{{- $current := .current }}
{{- with .node.Pages.ByWeight }}
<ul>
  {{- range . }}
  <li>
    {{- if and $current (eq . $current) }}
    <a href="{{ .RelPermalink }}" aria-current="page">{{ .LinkTitle }}</a>
    {{- else }}
    <a href="{{ .RelPermalink }}">{{ .LinkTitle }}</a>
    {{- end }}
    {{- if .IsSection }}{{ partial "tree.html" (dict "node" . "current" $current) }}{{ end }}
  </li>
  {{- end }}
</ul>
{{- end }}