2020-02-08 14:33:13 +01:00
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# This file defines various fragments of the blog, such as the header
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# and footer, as functions that receive arguments to be templated into
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# them.
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#
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# An entire post is rendered by `renderPost`, which assembles the
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# fragments together in a runCommand execution.
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#
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# The post overview is rendered by 'postList'.
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{ pkgs, lib, ... }:
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let
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inherit (builtins) filter map hasAttr replaceStrings toFile;
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inherit (pkgs.third_party) runCommandNoCC writeText;
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escape = replaceStrings [ "<" ">" "&" "'" ] [ "<" ">" "&" "'" ];
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header = title: ''
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<!DOCTYPE html>
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<head>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<meta name="description" content="tazjin's blog">
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<link rel="stylesheet" type="text/css" href="static/blog.css" media="all">
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<link rel="alternate" type="application/rss+xml" title="RSS-Feed" href="/rss.xml">
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<title>tazjin's blog${lib.optionalString (title != "") (
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": " + (escape title)
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)}</title>
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</head>
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<body>
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<header>
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<h1><a class="unstyled-link" href="/">tazjin's blog</a> </h1>
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<hr>
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</header>
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'';
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footer = ''
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<hr>
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<footer>
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<p class="footer">
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<a class="uncoloured-link" href="https://tazj.in">homepage</a>
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<a class="uncoloured-link" href="https://git.tazj.in/about">code</a>
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<a class="uncoloured-link" href="https://twitter.com/tazjin">twitter</a>
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</p>
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<p class="lod">ಠ_ಠ</p>
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</footer>
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</body>
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'';
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renderPost = post: runCommandNoCC "${post.key}.html" {} ''
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cat ${toFile "header.html" (header post.title)} > $out
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2020-02-08 14:47:47 +01:00
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# Write the post title & date
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2020-02-08 14:33:13 +01:00
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echo '<article><h2 class="inline">${escape post.title}</h2>' >> $out
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2020-02-08 14:47:47 +01:00
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echo '<aside class="date">' >> $out
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date --date="@${toString post.date}" '+%Y-%m-%d' >> $out
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echo '</aside>' >> $out
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# Write the actual post through cheddar's about-filter mechanism
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2020-02-08 14:33:13 +01:00
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cat ${post.content} | ${pkgs.tools.cheddar}/bin/cheddar --about-filter ${post.content} >> $out
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echo '</article>' >> $out
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cat ${toFile "footer.html" footer} >> $out
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'';
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# Generate a post list for all listed, non-draft posts.
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isDraft = post: (hasAttr "draft" post) && post.draft;
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isUnlisted = post: (hasAttr "listed" post) && !post.listed;
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includePost = post: !(isDraft post) && !(isUnlisted post);
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indexEntry= post: "<li>a blog post</li>";
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blogIndex = posts: writeText "blog-index.html" (lib.concatStrings (
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[
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(header "")
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"<ul>"
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]
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++ (map indexEntry (filter includePost posts))
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++ [
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"</ul>"
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footer
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]));
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in {
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inherit blogIndex renderPost;
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}
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