fediversity_website/themes/nluug/layouts/_default/_markup/render-image.html

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<picture>
{{ $isJPG := eq (path.Ext .Destination) ".jpg" }}
{{ $isPNG := eq (path.Ext .Destination) ".png" }}
{{ if ($isJPG) -}}
{{ $webpPath:= replace .Destination ".jpg" ".webp" }}
{{ $webpPathStatic:= printf "static/%s" $webpPath }}
{{ if (fileExists $webpPathStatic) -}}
<source srcset="{{ $webpPath | safeURL }}" type="image/webp" >
{{- end }}
{{- end }}
{{ if ($isPNG) -}}
{{ $webpPath:= replace .Destination ".png" ".webp" }}
{{ $webpPathStatic:= printf "static/%s" $webpPath }}
{{ if (fileExists $webpPathStatic) -}}
<source srcset="{{ $webpPath | safeURL }}" type="image/webp" >
{{- end }}
{{- end }}
{{- $img := .Page.Resources.GetMatch .Destination -}}
{{- if and (not $img) .Page.File -}}
{{ $path := path.Join .Page.File.Dir .Destination }}
{{- $img = resources.Get $path -}}
{{- end -}}
<img
src="{{ .Destination | safeURL }}"
alt="{{ .Text }}"
loading="lazy"
decoding="async"
width="{{ $img.Width }}"
height="{{ $img.Height }}"
/>
</picture>