{{ $class := .Get "class" -}}
{{ $name := .Get "name" -}}
{{ $src := .Get "src" -}}
{{ if and $src (fileExists (add "/assets" $src)) -}}
  {{ $original := resources.Get $src -}}
  {{ $src = $original.RelPermalink -}}
{{ end -}}
{{ if not $name -}}
  {{ $name = path.Base $src -}}
{{ end -}}
<a class="file{{ with $class }} {{ . }}{{ end }}" href="{{ $src }}">{{ $name }}</a>