Can dates be included in collection permalinks?

[bdesham]

I’m using Jekyll 3.0.0.pre.beta8. My site has three kinds of pages: the usual pages and posts and also link posts, which are essentially the same as “normal” posts except that they use a different layout and have different permalinks.

I would like to implement link posts as a collection but it seems that I can’t use dates in collection permalinks: with the configuration below, the links are all written to paths like

/links/:year/:month/2015-08-28-whatever.html

while I was expecting paths like

/links/2015/08/whatever.html

Is there something wrong with my configuration or are these parameters not (yet?) supported for collection permalinks?

The relevant parts of my configuration are as follows:

permalink: :year/:month/:title.html
collections:
    links:
        output: true
        permalink: links/:year/:month/:title.html
defaults:
    - scope:
        path: ""
        type: pages
      values:
        layout: new

    - scope:
        path: ""
        type: posts
      values:
        layout: article

    - scope:
        path: links
        type: links
      values:
        layout: link

The input files have paths like

_links/2015-08-28-whatever.md

[pathawks]

I have also had this problem.

[envygeeks]

I honestly don't think we dig that deep into the YAML for collections. @parkr would know more, maybe @willnorris I think he worked on it a bit yeah?

[parkr]

I honestly don't think we dig that deep into the YAML for collections.

Troof. Part of my work in #3690 is to make this accessible to the _posts collection but it's not available yet. Let's fold this into that PR.