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automatically resize/optimize images via Hugo processing

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Jake Jarvis
2019-10-27 12:44:29 -04:00
parent 40091d914a
commit abf99c0106
20 changed files with 112 additions and 85 deletions
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40
layouts/shortcodes/image.html
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@@ -1,14 +1,40 @@
{{ if .Get "caption"}}
<!-- Automatic resizing for HiDPI/retina images -->
<!-- https://gohugo.io/content-management/image-processing/ -->
{{- $original := .Page.Resources.GetMatch (.Get "src") -}}
{{- .Scratch.Set "image" $original -}}
<!-- TODO: automatically pull max-width of page -->
{{- $maxWidth := 910 -}}
{{- if .Get "width" }}
{{- $inputWidth := (int (.Get "width")) -}}
{{- $retinaWidth := (mul $inputWidth 2) -}}
{{- if gt $original.Width $retinaWidth -}}
{{- $finalWidth := (printf "%dx" $retinaWidth ) -}}
{{- .Scratch.Set "image" ($original.Resize $finalWidth) -}}
{{- end -}}
{{- else -}}
{{- $inputWidth := $maxWidth -}}
{{- if gt $original.Width 1820 -}}
{{- .Scratch.Set "image" ($original.Resize "1820x") -}}
{{- end -}}
{{- end -}}
{{- $image := .Scratch.Get "image" -}}
{{- if .Get "caption" -}}
<figure>
<picture>
{{ else }}
{{- else -}}
<p>
{{ end }}
<img src="{{ .Get "src" }}" alt="{{ .Get "alt" }}"{{ if .Get "width"}} width="{{ .Get "width" }}"{{ end }}{{ if .Get "caption"}} title="{{ .Get "caption"}}"{{ end }}>
{{ if .Get "caption"}}
{{- end -}}
<img src="{{ $image.Permalink }}"{{ if .Get "alt" }} alt="{{ .Get "alt" }}"{{ end }}{{ if .Get "width" }} width="{{ .Get "width" }}"{{ end }}{{ if .Get "caption" }} title="{{ .Get "caption"}}"{{ end }}>
{{- if .Get "caption" -}}
</picture>
<figcaption>{{ .Get "caption" }}</figcaption>
</figure>
{{ else }}
{{- else -}}
</p>
{{ end }}
{{- end -}}