hugo-theme-relearn/layouts/shortcodes/attachments.html

{{- $_hugo_config := `{ "version": 1 }` }}
{{- $style := .Get "style" | default "neutral" }}
{{- $title := .Get "title" | default ("Attachments-label" | T) }}
{{- $sort := .Get "sort" | default "asc" }}
<div class="attachments {{ $style }}">
  <div class="label">{{ $title }}</div>
  <ul class="attachments-files">
  {{- $filesName := "files" }}
  {{- if ne .Page.File.BaseFileName "index" }}
    {{- $filesName = printf "%s.files" .Page.File.BaseFileName }}
  {{- end}}

  {{- $fileDir := replace .Page.File.Dir "\\" "/" }}
  {{- $pattern := .Get "pattern" | default "" }}
  {{- range sort (readDir (printf "content/%s%s" .Page.File.Dir $filesName) ) "Name" $sort }}
    {{- if findRE $pattern .Name}}
      {{- $size := .Size }}
      {{- $unit := "Byte-symbol" }}
      {{- if ge $size 1024 }}
        {{- $size = div $size 1024 }}
        {{- $unit = "Kilobyte-symbol" }}
      {{- end }}
      {{- if ge $size 1024 }}
        {{- $size = div $size 1024 }}
        {{- $unit = "Megabyte-symbol" }}
      {{- end }}
      {{- $unitsymbol := $unit | T }}
    <li><a href="{{ (printf "%s%s/%s" $fileDir $filesName .Name) | relLangURL }}">{{.Name}}</a> ({{$size}} {{$unitsymbol}})</li>
    {{- end }}
  {{- end }}
  </ul>
  {{- .Inner }}
</div>