Allow eleventyExcludeFromCollections to take an array of collections

[paulrobertlloyd]

Is your feature request related to a problem? Please describe.
I have an index file alongside a group of posts

posts
├─ 01-01-2020-first-post.md
├─ 02-02-2020-second-post.md
├─ index.njk
└─ posts.11tydata.js

posts.11tydata.js adds a post tag to all posts in this folder, and index.njk loops through collection.post, but this loop includes index.njk as well as all the individual posts.

I can exclude the index by using eleventyExcludeFromCollections: true, but that excludes it from all collections. But in my sitemap.xml I want to include it when I use collection.all.

Describe the solution you'd like
Allow eleventyExcludeFromCollections to take an array of collections to be excluded from:

eleventyExcludeFromCollections:
- post
- foo
- bar

Describe alternatives you've considered

Currently I add tags: false to the index file, but it’s not as explicit.

[zachleat]

I like this idea! It must go into the queue!

This repository is now using lodash style issue management for enhancements. This means enhancement issues will now be closed instead of leaving them open.

View the enhancement backlog here. Don’t forget to upvote the top comment with 👍!

[davidhund]

Apologies if commenting here (and now) is inappropriate.
I'm not entirely sure how the "closed-but-queued issues" thing works. ;-)

Anyway: this gets a strong 👍 from me: Paul's use-case is something I also run into all the time…

[Ryuno-Ki]

@davidhund Basically, Zach's looking at https://github.com/11ty/eleventy#major-roadmapped-features for making decisions.

[architchandra]

Please add the ability to exclude from collections on a per-collection basis (or include in collections.all while excluding from others). It will be really helpful.

[nitin2953]

Please reopen this issue 😥,
without this feature my directory structure is messing up 😭.

[paulrobertlloyd]

@nitin2953 Just because an issue is closed, doesn’t mean it’s not on the roadmap. Things work in a rather strange way on this project.

[zachleat]

#2482 was merged—this will ship with 3.0.

[zachleat]

Docs shipping to https://www.11ty.dev/docs/collections/#how-to-exclude-content-from-collections