cheatsheets/_includes/2017/meta-vars.html

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HTML

{% comment %}
This partial assigns these variables:
meta_image: "https://assets.devhints.io/previews/react.jpg"
meta_description: "A comprehensive cheatsheet for React."
meta_title: "React cheatsheet"
depth: "1"
base: "./"
timestamp: "293048189123"
page_url: "https://devhints.io/react"
It emits some blank lines because Jekyll, lol.
{% endcomment %}
{% assign depth = page.url | split: '/' | size | minus: 1 %}
{% assign base = '' %}
{% if depth <= 1 %}{% assign base = '.' %}
{% elsif depth == 2 %}{% assign base = '..' %}
{% elsif depth == 3 %}{% assign base = '../..' %}
{% elsif depth == 4 %}{% assign base = '../../..' %}{% endif %}
{% assign timestamp = site.time | date: "%Y%m%d%H%M%S" %}
{% if site.data.assets.preview_host %}{% capture meta_image %}{%
if page.url == '/'
%}{{ site.data.assets.preview_host }}/index.jpg?t={{ timestamp }}{%
else
%}{{ site.data.assets.preview_host }}{{ include.page.url | remove: '.html' }}.jpg?t={{ timestamp }}{%
endif
%}{% endcapture %}{% endif %}
{% capture meta_title %}{% include values/title.html page=include.page %}{% endcapture %}
{% assign meta_title = meta_title | strip_newlines %}
{% capture meta_description %}{% include values/description.html page=include.page %}{% endcapture %}
{% assign meta_description = meta_description | strip_newlines %}
{% capture page_url %}{{ site.url }}{{ page.url | remove: '.html' }}{% endcapture %}