Layout escrito en Liquid para comprimir el código HTML
Existen infinitas opciones para desempeñar tareas relacionadas con la producción al desarrollar un sitio con la herramienta Jekyll, y una de estas opciones es, en este caso, no hacer uso de ninguna herramienta externa para realizar una compresión del código HTML. Existe una forma muy sencilla para hacerlo sin recurrir a plugins gracias a Liquid:
Crear un nuevo layout
cd _layouts
touch comprimir.html
_layouts/comprimir.html
---
#
# Jekyll layout that compresses HTML
# v1.1.1
# http://jch.penibelst.de/
# © 2015 Anatol Broder
# MIT License
#
---
{% if site.compress_html.ignore.envs contains jekyll.environment %}{{ content }}{% else %}{% capture _content %}{{ content }}{% endcapture %}{% if site.compress_html.endings == "all" %}{% assign _endings = "html head body li dt dd p rt rp optgroup option colgroup caption thead tbody tfoot tr td th" | split: " " %}{% else %}{% assign _endings = site.compress_html.endings %}{% endif %}{% for _element in _endings %}{% capture _end %}</{{ _element }}>{% endcapture %}{% assign _content = _content | remove: _end %}{% endfor %}{% if site.compress_html.comments.size == 2 %}{% assign _comment_befores = _content | split: site.compress_html.comments.first %}{% for _comment_before in _comment_befores %}{% assign _comment_content = _comment_before | split: site.compress_html.comments.last | first %}{% if _comment_content %}{% capture _comment %}{{ site.compress_html.comments.first }}{{ _comment_content }}{{ site.compress_html.comments.last }}{% endcapture %}{% assign _content = _content | remove: _comment %}{% endif %}{% endfor %}{% endif %}{% assign _pre_befores = _content | split:"<pre" %}{% assign _content = "" %}{% for _pre_before in _pre_befores %}{% assign _pres = _pre_before | split: "</pre>" %}{% case _pres.size %}{% when 2 %}{% capture _content %}{{ _content }}<pre{{ _pres.first }}</pre>{{ _pres.last | split: " " | join: " " }}{% endcapture %}{% when 1 %}{% capture _content %}{{ _content }}{{ _pres.last | split: " " | join: " " }}{% endcapture %}{% endcase %}{% endfor %}{% if site.compress_html.clippings == "all" %}{% assign _clippings = "html head title base link meta style body article section nav aside h1 h2 h3 h4 h5 h6 hgroup header footer address p hr blockquote ol ul li dl dt dd figure figcaption main div table caption colgroup col tbody thead tfoot tr td th" | split: " " %}{% else %}{% assign _clippings = site.compress_html.clippings %}{% endif %}{% for _element in _clippings %}{% assign _edges = " <e;<e; </e>;</e>;</e> ;</e>" | replace: "e", _element | split: ";" %}{% assign _content = _content | replace: _edges[0], _edges[1] | replace: _edges[2], _edges[3] | replace: _edges[4], _edges[5] %}{% endfor %}{{ _content }}{% endif %}
Ahora tan sólo queda hacer referencia a comprimir.html en cualquier layout de nivel superior, como por ejemplo en _layouts/default.html
---
layout: comprimir
---
<html>
{{ content }}
</html>
Referencias
- http://jch.penibelst.de/