Willing to transfer ownership of the gem if anyone is interested. See here.
This is a plugin that makes it easy to include progressive image galleries in your Jekyll site. Jekyll-pig is made possible with minimagick and pig.js.
- jekyll-pig to the plugins list in your site's _config.ymlEither add gem jekyll-pig to your site's Gemfile and run bundle install or run gem install jekyll-pig
galleries to your site's _config.ymlIt should look like this:
galleries:
    -
        path: <path relative to site root>
        name: <gallery-name>
    -
        <another gallery>
These lines tell jekyll-pig where to find your images and how to organize the generated output. <gallery-name> shouldn't have any spaces.
_config.yml and to your .gitignore{% include <gallery-name>.html %} in your pages and posts to include a the gallery identified by gallery-namejekyll build<site root>
├── _data
│   ├── <gallery-name>.json             #data for a specific gallery (one for each gallery)
│   └── ...
├── _includes
│   ├── <gallery-name>.html             #gallery include file (one for each gallery)
│   └── ...
├── assets
│   ├── html
│   │   ├── <gallery-name>
│   │   │   └── <filename>.html         #an html page using layout: page for each image
│   │   └── ...
│   ├── img
│   │   ├── <gallery-name>
│   │   │   ├── 20
│   │   │   │   ├── <filename>.<ext>    #each image resized into various size thumbnails
│   │   │   │   └── ...
│   │   │   ├── 100
│   │   │   │   └── ...
│   │   │   ├── 250
│   │   │   │   └── ...
│   │   │   ├── 500
│   │   │   │   └── ...
│   │   │   └── 1024
│   │   │       └── ...
│   │   └── ...
│   ├── js
│   │   ├── pig.min.js                  #js required for the gallery
│   │   └── ...
│   └── ...
└── ...
Wherever you {% include <gallery-name>.html %} you will see a progressive image gallery.
Check out mine.
Each image in a gallery is linked to generated page for that image. The default jekyll theme lists all pages at the top of every page. To keep all your image pages from cluttering your page listing the generate pages include exclude: true front matter. You can modify your header.html include file like this:
{%- if my_page.title and my_page.exclude != true -%}
<a class="page-link" href="{{ my_page.url | relative_url }}">{{ my_page.title | escape }}</a>
{%- endif -%}
The above just prevents the page link from appearing if my_page.exclude is true.