index: sort the posts by date

I originally didn't want posts to be tied to the date (inspired by
<http://swombat.com/2011/5/26/real-value-we>).  But, I've realized that for
several reasons, dates are important.  I've waffled quite a bit on this
decision.

2 files changed, 25 insertions, 6 deletions

diff --git a/Makefile b/Makefile
index c575f58..c573790 100644
--- a/Makefile
+++ b/Makefile
@@ -8,6 +8,6 @@ all: public/index.html $(addsuffix .html,$(articles))
 public/%.html: public/%.md pagerender.rb template.erb Makefile
 	./pagerender.rb $< > $@
 public/index.md: $(addsuffix .md,$(articles)) index.rb Makefile
-	./index.rb $(sort $(filter-out Makefile index.rb public/index.md,$^)) > $@
+	./index.rb $(filter-out Makefile index.rb public/index.md,$^) > $@
 clean:
 	rm -f -- public/*.html public/index.md
diff --git a/index.rb b/index.rb
index 9511c28..61450d5 100755
--- a/index.rb
+++ b/index.rb
@@ -2,12 +2,31 @@
 # -*- coding: utf-8 -*-
 load 'pandoc.rb'
 require 'erb'
+require 'date'
 
-markdown = "Web log entries\n=====\n\n"
+puts "Web log entries\n=====\n"
+
+puts '<style>
+li {
+	list-style-type: none;
+}
+time {
+	color: #AAAAAA;
+	font-family: monospace;
+}
+</style>'
+
+articles = []
 for filename in ARGV do
 	input = File.read(filename)
-	title = Pandoc::load('markdown',input)["title"] || input.split("\n",2).first
-	slug = filename.sub(/^public\//,'').sub(/\.md$/,'')
-	markdown += " * [`#{slug}`](./#{slug}.html) — #{title}\n"
+	doc = Pandoc::load('markdown',input)
+	articles.push({
+			:title => doc["title"] || input.split("\n",2).first,
+			:date => Date.parse(doc['date']),
+			:slug => filename.sub(/^public\//,'').sub(/\.md$/,''),
+		})
+end
+
+articles.sort_by{|a| a[:date]}.reverse.each do |a|
+	puts " * <time>#{a[:date].strftime('%Y-%m-%d')}</time> - [#{a[:title]}](./#{a[:slug]}.html)"
 end
-puts markdown