tvl-depot/users/tazjin/homepage/default.nix
Vincent Ambo 08d46ad293 chore(web/blog): Move out of //users/tazjin
This will also be used for the TVL blog, with status updates of
projects like Tvix.

Note that while this commit evaluates, there are still some things
specific to my blog in this code which I'll untangle in a future commit.

Change-Id: If59431161b165d7249cbb856073a4cae84a1bfbf
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3732
Tested-by: BuildkiteCI
Reviewed-by: grfn <grfn@gws.fyi>
2021-10-22 09:56:31 +00:00

77 lines
2.4 KiB
Nix

# Assembles the website index and configures an nginx instance to
# serve it.
#
# The website is made up of a simple header&footer and content
# elements for things such as blog posts and projects.
#
# Content for the blog is in //users/tazjin/blog instead of here.
{ depot, lib, pkgs, ... }@args:
with depot;
with nix.yants;
let
inherit (builtins) readFile replaceStrings sort;
inherit (pkgs) writeFile runCommandNoCC;
# The different types of entries on the homepage.
entryClass = enum "entryClass" [ "blog" "project" "misc" ];
# The definition of a single entry.
entry = struct "entry" {
class = entryClass;
title = string;
url = string;
date = int; # epoch
description = option string;
};
escape = replaceStrings [ "<" ">" "&" "'" ] [ "&lt;" "&gt;" "&amp;" "&#39;" ];
postToEntry = defun [ web.blog.post entry ] (post: {
class = "blog";
title = post.title;
url = "/blog/${post.key}";
date = post.date;
});
formatDate = defun [ int string ] (date: readFile (runCommandNoCC "date" {} ''
date --date='@${toString date}' '+%Y-%m-%d' > $out
''));
formatEntryDate = defun [ entry string ] (entry: entryClass.match entry.class {
blog = "Blog post from ${formatDate entry.date}";
project = "Project from ${formatDate entry.date}";
misc = "Posted on ${formatDate entry.date}";
});
entryToDiv = defun [ entry string ] (entry: ''
<a href="${entry.url}" class="entry ${entry.class}">
<div>
<p class="entry-title">${escape entry.title}</p>
${
lib.optionalString ((entry ? description) && (entry.description != null))
"<p class=\"entry-description\">${escape entry.description}</p>"
}
<p class="entry-date">${formatEntryDate entry}</p>
</div>
</a>
'');
index = entries: pkgs.writeText "index.html" (lib.concatStrings (
[ (builtins.readFile ./header.html) ]
++ (map entryToDiv (sort (a: b: a.date > b.date) entries))
++ [ (builtins.readFile ./footer.html) ]
));
pageEntries = import ./entries.nix;
homepage = index ((map postToEntry users.tazjin.blog.posts) ++ pageEntries);
atomFeed = import ./feed.nix (args // { inherit entry pageEntries; });
in runCommandNoCC "website" {} ''
mkdir $out
cp ${homepage} $out/index.html
cp ${atomFeed} $out/feed.atom
mkdir $out/static
cp -r ${depot.web.static}/* $out/static
cp -rf ${./static}/* $out/static
''