Combining posts and other collections into one feed

[gussmith23]

I'd like to combine my posts collection with another collection on my site, and stick it all into one global feed for the site. Is this possible?

[gussmith23]

Staring at the code in https://github.com/jekyll/jekyll-feed/blob/master/lib/jekyll-feed/feed.xml, it seems like feeds are generated from a single collection at the moment.

[jekyllbot]

This issue has been automatically marked as stale because it has not been commented on for at least two months.

The resources of the Jekyll team are limited, and so we are asking for your help.

If this is a bug and you can still reproduce this error on the master branch, please reply with all of the information you have about it in order to keep the issue open.

If this is a feature request, please consider whether it can be accomplished in another way. If it cannot, please elaborate on why it is core to this project and why you feel more than 80% of users would find this beneficial.

This issue will automatically be closed in two months if no further activity occurs. Thank you for all your contributions.

[sheriferson]

@gussmith23 I wanted this too (that's how I found this issue). Given jekyllbot's comment, it's a feature request, but I can't see/argue how more than 80% of the plugin users would find it beneficial.

What I'm thinking of doing is either creating my own feed.xml template, or rethinking what I'm trying to accomplish in the first place. What did you end up doing, out of curiosity?

[Yncke]

@gussmith23 @sheriferson I'm trying to achieve the same thing, and would also be interested in alternative approaches.

The use case is this: I have a couple of webcomics which update. The pages are created by a generator, and organised in a collection per title. I'd like to offer feeds for the updates per title and a combined feed of the updates for all titles, preferably including blog posts as well.

At the moment, I'm experimenting with adding the comic pages to their own collection *and* an AllComicPages collection, which seems to work to make a feed to combine them all. However, it feels like an ugly hack, and doesn't solve the problem of merging news posts into the feed.

[gussmith23]

I just made my own xml templates. I think I overestimated how difficult it would be to do it by hand.

@Yncke I suggest using tags for your problem!

For example:
A strip of webcomic 1:

---
title: today's post
tags: allcomics comic1
...other metadata
---
content...

A strip of webcomic 2:

---
title: a different post
tags: allcomics comic2
...other metadata
---
content...

feed1.xml:

{% for comic in site.tags['comic1'] %}
...generate xml...
{% endfor %}

feed2.xml:

{% for comic in site.tags['comic2'] %}
...generate xml...
{% endfor %}

feedall.xml:

{% for comic in site.tags['allcomics'] %}
...generate xml...
{% endfor %}

[Yncke]

@gussmith23 Thank you for the suggestion. Writing my own had crossed my mind, but then I started thinking about sorting the updates across the various series according to publication date, etc., and well, basically, rewriting jekyll-feed. :) And I was still a bit unsure on how to combine these with the updates for the blog posts.

Also, I want to keep my web comic generator as single purpose as possible and jekyll-feed has the know how of making a correct RSS feed.