63 lines
1.8 KiB
Nix
63 lines
1.8 KiB
Nix
# This creates the static files that make up my blog from the Markdown
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# files in this repository.
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#
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# All blog posts are rendered from Markdown by cheddar.
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{ depot, lib, pkgs, ... }@args:
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with depot.nix.yants;
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let
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inherit (builtins) readFile;
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inherit (depot.nix) renderMarkdown;
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inherit (depot.web) atom-feed;
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inherit (lib) singleton;
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# Type definition for a single blog post.
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post = struct "blog-post" {
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key = string;
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title = string;
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date = int;
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# Optional time at which this post was last updated.
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updated = option int;
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# Path to the Markdown file containing the post content.
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content = path;
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# Should this post be included in the index? (defaults to true)
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listed = option bool;
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# Is this a draft? (adds a banner indicating that the link should
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# not be shared)
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draft = option bool;
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# Previously each post title had a numeric ID. For these numeric
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# IDs, redirects are generated so that old URLs stay compatible.
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oldKey = option string;
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};
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# Rendering fragments for the HTML version of the blog.
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fragments = import ./fragments.nix args;
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# Functions for generating feeds for these blogs using //web/atom-feed.
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toFeedEntry = { baseUrl, ... }: defun [ post atom-feed.entry ] (post: rec {
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id = "${baseUrl}/${post.key}";
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title = post.title;
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content = readFile (renderMarkdown post.content);
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published = post.date;
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updated = post.updated or post.date;
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links = singleton {
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rel = "alternate";
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href = id;
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};
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});
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in
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{
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inherit post toFeedEntry;
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inherit (fragments) renderPost;
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# Helper function to determine whether a post should be included in
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# listings (on homepages, feeds, ...)
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includePost = post: !(fragments.isDraft post) && !(fragments.isUnlisted post);
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}
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