tvl-depot/web/homepage/default.nix
Vincent Ambo b5c50f4699 refactor(web): Let //web/ derivations build static pages only
Removes nginx configuration built by the web targets (with the
exception of the includable block used to set up redirects for old
blog URLs).
2020-02-11 19:31:20 +00:00

72 lines
2.2 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 //web/blog instead of here.
{ pkgs, lib, ... }:
with pkgs;
with nix.yants;
let
inherit (builtins) readFile replaceStrings sort;
inherit (third_party) 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: third_party.writeText "index.html" (lib.concatStrings (
[ (builtins.readFile ./header.html) ]
++ (map entryToDiv (sort (a: b: a.date > b.date) entries))
++ [ (builtins.readFile ./footer.html) ]
));
homepage = index ((map postToEntry web.blog.posts) ++ (import ./entries.nix));
in runCommandNoCC "website" {} ''
mkdir $out
cp ${homepage} $out/index.html
cp -r ${./static} $out/static
''