A lightning talk I gave at RORO Sydney on 12 January 2010 about how I set up code samples on http://lachstock.com.au

1. Serving
Code Samples
Lachstock

2. I was recently on holidays.

3. Holidays are boring

4. Holidays are boring
So I wrote code.

5. Holidays are boring
Then I thought I should blog about it.

6. Holidays are boring
But I didn’t want to write a long article.

7. Holidays are boring
Just a snippet.

8. Holidays are boring
I needed code section

9. Holidays are boring
I needed a code section!

10. Five busy days later...

11. The Problem
I needed to display the actual code I wrote.

12. The Problem
Ordered list with codey bits in LIs?

13. The Problem
Gist?

14. The Problem
Surely someone has solved this?

15. The Problem
Surely someone has solved this?

16. NO!

17. The Post
%h2 HTML
= code_sample("anchor.html")

18. The Helper
def code_sample(filename)
@filename = filename
file = "#{options.views}/#{@category}/#{@name}/
files/#{filename}.txt"
if File.exist? file
@code_snippet= preserve(
escape_once(File.read(file))
)
extension = filename.split('.')[1]
@code_class = (
extension == "js" ? "javascript" : extension
)
end
haml(:"_code_sample", :layout => false)
end

19. The Partial
.code
%pre
%code{:class => @code_class}= @code_snippet
%span.download
Download file:
%a{:href => "files/#{@filename}"}= @filename

20. The Browser
<h2>HTML</h2>
<div class="code">
<pre> <code class="html">&lt;a href=&quot;/
feeds/articles/&quot; id=&quot;feed-
button&quot;&gt;&#x000A;
&lt;span&gt;Subscribe&lt;/span&gt;&#x000A;&lt;/
a&gt;</code></pre>
<span class="download">
Download file:
<a href="files/anchor.html">
anchor.html
</a>
</span>
</div>

21. The Controller
get '/*/files/:filename.:filetype' do
filetype = params[:filetype] == "zip" ? "zip" :
"#{params[:filetype]}.txt"
file = "#{options.views}/#{params[:splat]}/files/
#{params[:filename]}.#{filetype}"
if File.exists? file
content_type 'text/plain', :charset => 'utf-8'
send_file(file)
else
raise not_found
end
end

22. Questions?