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refactor(web/blog): Move atom feed creation logic to //web/blog

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This was previously all inside of my personal homepage configuration,
but that's not really where it belongs.

This moves the blog post -> feed entry logic to //web/blog and moves
some other minor logic (like entry order) into the atom feed
implementation itself.

Change-Id: Idde0241c48e979580de73f2b9afd04e6ca7f4c9a
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3770
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
This commit is contained in:
Vincent Ambo 2021-11-04 15:39:19 +01:00 • committed by tazjin
parent 00ae396eeb
commit f360bbdcf0
3 changed files with 38 additions and 27 deletions
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23
web/blog/default.nix
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@ -7,6 +7,11 @@
with depot.nix.yants;
let
inherit (builtins) readFile;
inherit (depot.nix) renderMarkdown;
inherit (depot.web) atom-feed;
inherit (lib) singleton;
# Type definition for a single blog post.
post = struct "blog-post" {
key = string;
@ -31,9 +36,25 @@ let
oldKey = option string;
};
# Rendering fragments for the HTML version of the blog.
fragments = import ./fragments.nix args;
# Functions for generating feeds for these blogs using //web/atom-feed.
toFeedEntry = defun [ post atom-feed.entry ] (post: rec {
id = "https://tazj.in/blog/${post.key}";
title = post.title;
content = readFile (renderMarkdown post.content);
published = post.date;
updated = post.updated or post.date;
links = singleton {
rel = "alternate";
href = id;
};
});
in {
inherit post;
inherit post toFeedEntry;
inherit (fragments) renderPost;
includePost = post: !(fragments.isDraft post) && !(fragments.isUnlisted post);
}