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" }}
<section class="attachments {{ $style }}">
    <div class="label">{{ $title }}</div>
    <div 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 }}
    </div>
    {{- .Inner }}
</section>