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

{{ $_hugo_config := `{ "version": 1 }` }}
{{ $style := .Get "style" | default "neutral" }}
{{ $title := .Get "title" | default ("Attachments-label" | T) }}
<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 (readDir (printf "content/%s%s" .Page.File.Dir $filesName) ) }}
			{{- 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>