Jekyll: Include a file from directory outside of _includes

Question

I have an directory called /patterns in my Jekyll site, whose structure generally looks generally like this:

_includes _layouts _site /patterns index

Answer 1

You can choose to include file fragments relative to the current file by using the include_relative tag for your /patterns/file.html

For the directory structure you have:

_includes
_layouts
_site
/patterns/file.html
index.html

In this case the following doesn't work:

{% include /patterns/file.html %}

Use include_relative as /pattern is relatif to index.html as the current file:

{% include_relative patterns/file.html %}

Note:

You can't use the include_relative tag with any files inside your layouts folder. You can only use include_relative on a page or post. Layouts code is executed in the context of page/post rendering and the include_relative is calculated relative to this page or post, not from the layout itself.

In this case your code on index.html shall be:

---
layout: null
---
(put all code from _layouts/default.html)
{% include_relative patterns/file.html %}