cullmann.io/themes/blowfish/layouts/shortcodes/figure.html

{{ $disableImageOptimization := .Site.Params.disableImageOptimization | default false }}
{{ if .Get "default" }}
  {{ template "_internal/shortcodes/figure.html" . }}
{{ else }}
  {{- $url := urls.Parse (.Get "src") }}
  {{- $altText := .Get "alt" }}
  {{- $caption := .Get "caption" }}
  {{- $href := .Get "href" }}
  {{- $class := .Get "class" }}
  {{- $target := .Get "target" | default "_blank" }}
  {{- $nozoom := .Get "nozoom" | default false -}}

  <figure>
  {{- with $href }}<a href="{{ . }}" {{ with $target }}target="{{ . }}"{{ end }}>{{ end -}}
  {{- if findRE "^https?" $url.Scheme }}
      <img class="my-0 rounded-md{{ with $nozoom }} nozoom{{ end }}{{ with $class }} {{ . }}{{ end }}" src="{{ $url.String }}" alt="{{ $altText }}" />
  {{- else }}
    {{- $resource := "" }}
    {{- if $.Page.Resources.GetMatch ($url.String) }}
      {{- $resource = $.Page.Resources.GetMatch ($url.String) }}
    {{- else if resources.GetMatch ($url.String) }}
      {{- $resource = resources.Get ($url.String) }}
    {{- end }}
    {{- with $resource }}
      {{- if or $disableImageOptimization (eq .MediaType.SubType "svg")}}
        <img
          class="my-0 rounded-md{{ with $nozoom }} nozoom{{ end }}{{ with $class }} {{ . }}{{ end }}"
          src="{{ .RelPermalink }}"
          alt="{{ $altText }}"
        />
      {{- else }}
        <img
          class="my-0 rounded-md{{ with $nozoom }} nozoom{{ end }}{{ with $class }} {{ . }}{{ end }}"
          srcset="
          {{ (.Resize "330x").RelPermalink }} 330w,
          {{ (.Resize "660x").RelPermalink }} 660w,
          {{ (.Resize "1024x").RelPermalink }} 1024w,
          {{ (.Resize "1320x").RelPermalink }} 2x"
          src="{{ (.Resize "660x").RelPermalink }}"
          alt="{{ $altText }}"
        />
      {{- end }}
    {{- else }}
      <img class="my-0 rounded-md{{ with $nozoom }} nozoom{{ end }}{{ with $class }} {{ . }}{{ end }}" src="{{ $url.String }}" alt="{{ $altText }}" />
    {{- end }}
  {{- end }}
  {{ with $caption }}<figcaption>{{ . | markdownify }}</figcaption>{{ end }}
  {{ if $href }}</a>{{ end }}
  </figure>
{{- end -}}