Jekyll plugin to automatically generate a tag cloud and tag pages.
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README.md

jekyll-tagging-lite Gem Version

Re-published to rubygems as jekyll-tagging-lite by @mehdisadeghi.

I have merged some waiting PRs and also made a change to cache the tag_cloud function's result which signifcantly increases build time (from 12s down to 5s) on my website.

Moreover, I restructed the files so one can simple add gem jekyll-tagging-lite to Gemfile and is done. No need to requiring jekyll/tagging (was annoying for me).

For the list of changes made to the upstream see the commit history.

The instructions below remain the same, except for the gem name and the requiring part.

Note on Forking

All the credit goes to the original authors, Arne and Jens, and other contributors. Thank you! The purpose of this fork is mainly making my own website faster. In case the upstream shows interest I'll submit a PR of my changes. However, the upstream looks stale to me (dangling PRs and not responding to issues). Again, thanks for creating jekyll-tagging!

jekyll-tagging

By Arne Eilermann mailto:arne@kleinerdrei.net and Jens Wille mailto:jens.wille@uni-koeln.de

jekyll-tagging is a Jekyll plugin, to add a tag cloud and per tag pages plus feeds to your Jekyll generated Website.

Tags

This plugin does not reinvent Jekyll's tagging feature. It just makes it easy to use. https://jekyllrb.com/docs/frontmatter/

Add space-delimited lowercase tags to FrontMatter, e.g.

author: Willow Rosenberg
tags: feminism anti-capitalism witchcraft

Usage

Install it:

gem install jekyll-tagging

Add this line to your Jekyll project's Gemfile:

group :jekyll_plugins do
  gem "jekyll-tagging-lite"
end

And in your _config.yml you have to define your layout used to generate tag pages like:

tag_page_layout: tag_page
tag_page_dir: tag

This will look for _layouts/tag_page.html>, and use it to generate tag pages into the _site/tag directory.

Now you have a new filter called tag_cloud which you can use with the site object as argument in your layout to get a cloud of all your site's tags. The tags are linked to their related tag page. Furthermore, you have a tags filter which you can feed with a post or a page object to get a link list of all its tags.

You can optionally define a per tag Atom/RSS feed. In your _config.yml define the following:

tag_feed_layout: tag_feed tag_feed_dir: tag

(tag_page_dir and tag_feed_dir can have the same value.)

Pretty page links

If your Jekyll permalink configuration is set to something other than :pretty, and you still want to have pretty tag links define the following in your _config.yml:

tag_permalink_style: pretty

Ignoring tags

Sometimes you don't want tag pages generated for certain pages. That's ok! Just add ignored_tags: [tags,to,ignore] to your _config.yml

Extra data on tag pages

You can attach extra data to generated tag pages by specifying tag_page_data in _config.yml (this also works for tag_feed_data). For example, you might want to exclude tag pages from being picked up by jekyll-sitemap:

tag_page_data:
  sitemap: false

Example tag page layout

(Save this to _layouts/tag_page.html if using the _config.yml snippet above.)

  ---
  layout: default
  ---
  <h2>{{ page.tag }}</h2>
  <ul>
  {% for post in page.posts %}
    <li><a href#"{{ post.url }}">{{ post.title }}</a> ({{ post.date | date_to_string }} | Tags: {{ post | tags }})</li>
  {% endfor %}
  </ul>

  <div id#"tag-cloud">
    {{ site | tag_cloud }}
  </div>

Example layout of an Atom feed

(Save this to _layouts/tag_feed.xml if using the _config.yml snippet above.)

  ---
  layout: nil
  ---
  <?xml version#"1.0" encoding#"utf-8"?>
  <feed xmlns#"http://www.w3.org/2005/Atom">
   <title>Your Title - {{ page.tag }}</title>
   <link href#"http://example.com{{ page.url }}" rel#"self"/>
   <link href#"http://example.com/tag/{{ page.tag }}.html"/>
   <updated>{{ site.time | date_to_xmlschema }}</updated>
   <id>http://example.com/tag/{{ page.tag }}.html</id>
   <author>
     <name>Author Here</name>
   </author>
   {% for post in page.posts %}
   <entry>
     <title>{{ post.title }}</title>
     <link href#"http://example.com{{ post.url }}"/>
     <updated>{{ post.date | date_to_xmlschema }}</updated>
     <id>http://example.com{{ post.id }}</id>
     <content type#"html">{{ post.content | xml_escape }}</content>
   </entry>
   {% endfor %}
  </feed>

Links

Documentation:: http://rubydoc.info/gems/jekyll-tagging/frames Source code:: http://github.com/pattex/jekyll-tagging RubyGem:: http://rubygems.org/gems/jekyll-tagging

License

The MIT License

Copyright (c) 2010-2012 University of Cologne, Albertus-Magnus-Platz, 50923 Cologne, Germany

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.