Include images from leaf bundle

When giving a directory to use for the gallery {{< gallery dir="/img/your-directory-of-images/" />}} the static folder is assumed as root for the given parameter. However, when using leaf bundles, images and pages live in the same folder (or in a subfolder):

├── 2018
│   ├── post-about-animals
│   │   ├── img
│   │   │   ├── elephant.jpg
│   │   │   ├── zebrajpg
│   │   │   ├── tiger.jpg
│   │   ├── index.md
└── index.md

Now, I don't see a way to use the images in the post's img folder to use as a gallery. As far as I understand the documentation, these images should be accessible as pages resources via .Resources.

I am new to Hugo and therefore not sure if this is really a missing feature or if I just don't see the solution in that case. I would appreciate some guidance here, so that I can see if I can modify shortcode for that case or if this is already supported.

I modified the shortcode so that it works for page bundles now. However, old function is lost by now. Please take a look.

<!--
Put this file in /layouts/shortcodes/gallery.html
Documentation and licence at https://github.com/liwenyip/hugo-easy-gallery/
-->
<!-- count how many times we've called this shortcode; load the css if it's the first time -->
{{- if not ($.Page.Scratch.Get "figurecount") }}<link rel="stylesheet" href="/css/hugo-easy-gallery.css" />{{ end }}
{{- $.Page.Scratch.Add "figurecount" 1 }}
{{ $baseURL := .Site.BaseURL }}
<div class="gallery caption-position-{{ with .Get "caption-position" | default "bottom" }}{{.}}{{end}} caption-effect-{{ with .Get "caption-effect" | default "slide" }}{{.}}{{end}} hover-effect-{{ with .Get "hover-effect" | default "zoom" }}{{.}}{{end}} {{ if ne (.Get "hover-transition") "none" }}hover-transition{{end}}" itemscope itemtype="http://schema.org/ImageGallery">
    {{- with .Page.Resources.ByType "image" -}}
        {{- range . -}}
            <!-- skip files that aren't images, or that inlcude the thumb suffix in their name -->
            {{- $thumbext := $.Get "thumb" | default "-thumb" }}
            {{- $isthumb := .Name | findRE ($thumbext | printf "%s\\.") }}<!-- is the current file a thumbnail image? -->
            {{- $isimg := lower .Name | findRE "\\.(gif|jpg|jpeg|tiff|png|bmp)" }}<!-- is the current file an image? -->
            {{- if and $isimg (not $isthumb) }}
                {{- $caption :=  .Name | path.Base | replaceRE "\\..*" "" | humanize }}<!-- humanized filename without extension -->
                {{- $linkURL := .Permalink }}   <!-- relative URL to hi-res image -->
                {{- $thumb := .Name | replaceRE "(\\.)" ($thumbext | printf "%s.") }}<!-- filename of thumbnail image -->
                {{- $thumbURL := print .Permalink | replaceRE "(\\.)" ($thumbext | printf "%s.") }}<!-- absolute URL to thumbnail image -->
                {{- $thumbexists := fileExists $thumbURL}} <!-- does a thumbnail image exist? -->
                <div class="box">
                  <figure itemprop="associatedMedia" itemscope itemtype="http://schema.org/ImageObject">
                    <div class="img" style="background-image: url('{{ if $thumbexists }}{{ $thumbURL }}{{ else }}{{ $linkURL }}{{ end }}');" >
                      <img itemprop="thumbnail" src="{{ if $thumbexists }}{{ $thumbURL }}{{ else }}{{ $linkURL }}{{ end }}" alt="{{ $caption }}" /><!-- <img> hidden if in .gallery -->
                    </div>
                  <figcaption>
                  <p>{{ $caption }}</p>
                  </figcaption>
                    <a href="{{ $linkURL }}" itemprop="contentUrl"></a><!-- put <a> last so it is stacked on top -->
                  </figure>
                </div>
            {{- end }}
        {{- end }}
    {{- else -}}
        <!-- If no directory was specified, include any figure shortcodes called within the gallery -->
      {{ .Inner }}
    {{- end }}
</div>

I can create a suitable PR if we have an idea how to merge this one into master. However, guidance from more experienced Hugo users is needed here.

liwenyip / hugo-easy-gallery

Include images from leaf bundle #54