Build post from two different layout in Jekyll - jekyll

I'm trying to build a mobile version for my website using Jekyll.
So I want Jekyll to build the same post by using two different layout post and mobile_post
I've tried, none of these work:
---
layout: [post, mobile_post]
title: "first post"
date: 2013-06-12 22:35:00
categories: Rss
---
---
layout: post mobile_post
title: "first post"
date: 2013-06-12 22:35:00
categories: Rss
---
Could someone help me out! thanks!!

I wrote a plugin for this exact type of scenario. This should be what you are looking for: https://github.com/saclark/jekyll-multipost

Related

jekyll post name misunderstanding

I'm new to jekyll blog
I have this post name which shows on the blog: 2023-01-28-design test.md
---
title: "design test"
last_modified_at: 2023-01-28
categories:
- Blog
tags:
- design
- color
classes: wide
# Introduction
---
And this post name does not show on the blog: 2023-02-01-how-to-use-color.md
Also tried this file name: 2023-02-01-how to use color.md
---
title: "how to use color"
last_modified_at: 2023-02-01
categories:
- Blog
tags:
- design
- color
classes: wide
---
# Introduction
I would really appreciate some comments on that since I'm stumped.
Looks like Jekyll doesn't recognize post name with future dates as a valid post.
I added the future date randomly for testing purposes but looks like I lost myself in the debugging process.

Displaying short description of post under post name using Jekyll

I'm using jekyll with GitHub pages for my blog. How can I display a short sentence right below my post title in the index/ home page? As an example, I am trying to write text between the red brackets:
example image
I've seen other posts on this site that ask a similar question, but they are very old and it seems that jekyll has changed since then. Any help would be appreciated.
If these are posts you should be able to use {{ post.excerpt }}. You can see more in the docs: https://jekyllrb.com/docs/posts/
If it's a page (and not a post) you'll need to use {{ page.content | truncatewords: 30 }}. See more in the docs: https://shopify.github.io/liquid/filters/truncatewords/
A note about page.content: if that page is HTML code you'll need to use the strip_html filter. If that page has liquid, there is no filter to strip that and you will need to add the excerpt to the front matter. Something like this:
---
title: This is a post title
description: This is a post description.
excerpt: This is the post excerpt.
---
{{ page.excerpt }}

Use per-page title with a Jekyll theme

This is my personal GH Pages site.
I have this set in my /_config.yml:
theme: jekyll-theme-cayman
title: iBug # GitHub
description: The small personal site for iBug
Now it shows a big title iBug # GitHub and a tagline on every page GH Pages generates. I want to set overrides for specific pages. I tried
---
title: Blog index
---
in /blog/index.html, but it doesn't work. It only changes the HTML title of the page (browser title bar), but not the "title" in the big block on the top of the page.
How do I set an override title for a single page?
Update: I have since submitted a pull request to change this in the theme, and the answer below is no longer necessary since it's already been applied when you use the theme as of now. All you need to do is to specify the title override in the front matter:
---
title: My custom title
---
To specify another title, you need to change the layout file.
Copy the default layout and place it in <GitHub repo>/_layouts/default.html, and change line 16 to this:
<h1 class="project-name">{{ page.title | default: site.title }}</h1>
Then Jekyll will respect the title set in the front matter, and place it there.
This is just the way this theme is implemented, if you check the default layout for Cayman theme on line 14 you can see what exact variable it is using.
<h1 class="project-name">{{ site.title | default: site.github.repository_name }}</h1>
Hope that helps!
My approach is using javascript as follows.
<script>
document.getElementsByClassName("project-name").item(0).innerText = "{{ page.title }}";
</script>
You can write a html file in _includes dir and use {% include your_file.html %}.

Jekyll multiple pages using the same template

I'm aware you can use _layouts and in your pages do something like
---
layout: some_layout
title: Home
---
So say I have 20 pages. All using the same template but slightly different content and stuff inside.
Instead of creating 20 different pages.html files with different names and different permalinks.
Is there a way to create 1 page.html and based on the permalink change what's inside the {{ content }}?
Just create your-slug.md files. Let them all use the same layout, like this:
---
layout: some_layout
title: Your title
---
In the layout file (some_layout.html) you put some logic, like this:
{% if page.url contains '/your-slug' %}Put this on the screen.{% endif %}
You could organize the 20 pages under a collection and assign defaults on the collection.
For example, say your collection is labelled docs, then all those 20 pages need to be placed inside a directory named _docs, at the root of your source directory. Following that configure your collection to use the layout some_layout for its documents.
# _config.yml
# enable rendering on your collection(s)
collections:
docs:
output: true
another_collection:
output: true
# set defaults on your collection. (note the indentation..)
defaults:
-
scope:
type: docs
path: _docs
values:
layout: some_layout # The layout for this collections' files
-
scope:
type: another_collection
[...]
I have not tried this yet, but there is a closed github issue: https://github.com/jekyll/jekyll/issues/16
There are suggestions to write/use a jekyll plugin like the ones below. These are links from the issue and their state is unknown to me.
https://github.com/ixti/ixti.github.io/blob/source/_plugins/categories.rb
https://github.com/rfelix/my_jekyll_extensions/tree/master/category_gen
how to write a plugin: https://jekyllrb.com/docs/plugins/

Data in Front Matter?

I have some Jekyll front matter:
---
layout: boilerplate
title: {{ site.data.products.meta_title }}
---
But the meta title from data is not output - how can I get it to be outputted?
No you cannot use liquid variables in front matter because front matter variables are not processed by Liquid.