96 lines
		
	
	
	
		
			3.1 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
			
		
		
	
	
			96 lines
		
	
	
	
		
			3.1 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
# 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 index is generated by //web/homepage, not by this code.
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{ depot, lib, ... }:
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let
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  inherit (builtins) filter map hasAttr replaceStrings toFile;
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  inherit (depot.third_party) runCommandNoCC writeText;
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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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  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/tazjin.css" media="all">
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    <link rel="icon" type="image/webp" href="/static/favicon.webp">
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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: ${escape title}</title>
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  </head>
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  <body class="light">
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    <header>
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      <h1><a class="blog-title" href="/">tazjin's interblag</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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        |
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        <a class="uncoloured-link" href="https://git.tazj.in/about">code</a>
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        |
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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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  draftWarning = toFile "draft.html" ''
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    <p class="cheddar-callout cheddar-warning">
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      <b>Note:</b> This post is a <b>draft</b>! Please do not share
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      the link to it without asking me first.
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    </p>
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    <hr>
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  '';
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  unlistedWarning = toFile "unlisted.html" ''
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    <p class="cheddar-callout cheddar-warning">
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      <b>Note:</b> This post is <b>unlisted</b>! Please do not share
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      the link to it without asking me first.
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    </p>
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    <hr>
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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)} > $out
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    # Write the post title & date
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    echo '<article><h2 class="inline">${escape post.title}</h2>' >> $out
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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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    ${
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      # Add a warning to draft/unlisted posts to make it clear that
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      # people should not share the post.
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      if (isDraft post) then "cat ${draftWarning} >> $out"
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      else if (isUnlisted post) then "cat ${unlistedWarning} >> $out"
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      else "# Your ads could be here?"
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    }
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    # Write the actual post through cheddar's about-filter mechanism
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    cat ${post.content} | ${depot.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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in {
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  inherit renderPost isDraft isUnlisted;
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}
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