Claudio Sanches

This plugin adds Github Gists in your posts via shortcode.
Examples
Add a full gist:
<pre><code>[gist id="3837669"]
</code></pre>
Add a specific file in a gist:
<pre><code>[gist id="3837669" file="index.php"]
</code></pre>
<h3>License</h3>
Gist GitHub Shortcode is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published 
by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
Gist GitHub Shortcode is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of 
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with Gist GitHub Shortcode. If not, see <a href="http://www.gnu.org/licenses/" rel="nofollow ugc">http://www.gnu.org/licenses/</a>.

Gist GitHub Shortcode

Adds Github Gists in your posts via shortcode

frisfruitig

With FF Block Gist Embed you can embed files from GitHub Gists. It adds a block named ‘Gist Embed’ to the WordPress editor interface. For every instance of this block, you can:
<ul>
<li>Select one or more files from the same Gist URL to be embedded in your post.</li>
<li>Include the vendor stylesheet that handles the styling of Gist embeds (see the FAQ for more information).</li>
<li>Choose whether or not to embed the Gist files as raw content.</li>
</ul>
<h3>Roadmap</h3>
We would like to bring some additional features soon. Some of the things we have planned, are:
<ul>
<li>Caching the content of files</li>
<li>Manually change the order of the files from a Gist within a block</li>
<li>Automatically get the list of files after a valid Gist URL is entered in the input field</li>
</ul>

FF Block Gist Embed

This block works great for adding Gists to your posts and pages.

However, it desperately need a preview option so that you can see the results in the editor.

But, otherwise, a fantastic addition for any developer wanting to share their code.

A simple but effective Gist block

A WordPress editor plugin that that handles embedding (raw) files from GitHub Gists.

Gist GitHub Shortcode vs FF Block Gist Embed