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Rails 3.1 Asset Pipeline

• The new asset pipeline in Rails 3.1 makes assets first class citizens in Rails
• Assets now in app/assets rather than public (also lib/assets, vendor/assets)
• Asset files can inline other asset files using requires
• Asset packages are defined in manifests

/*

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<% list_items_for @products do |product| %>
  <%= link_to product.name, product %>
<% end %>

<!--
  <li class="first"><a href="/products/1">Product #1</a></li>
  <li><a href="/products/2">Product #2</a></li>
  <li class="last"><a href="/products/3">Product #3</a></li>
-->

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#!/usr/bin/env ruby

files = `grep -lir :focus spec`.split(/\n/) - ["spec/spec_helper.rb"]

if files.any?
  puts "FOCUS: #{files.inspect}"
  exit 1
end

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/Users/dce/.rvm/rubies/ruby-1.9.3-p0/bin/ruby -S rspec ./spec/paperclip-meta/paperclip-meta_spec.rb
/Users/dce/.rvm/gems/ruby-1.9.3-p0@paperclip-meta/gems/paperclip-3.0.2/lib/paperclip/validators/attachment_content_type_validator.rb:3:in `<module:Validators>': uninitialized constant Paperclip::Validators::ActiveModel (NameError)
	from /Users/dce/.rvm/gems/ruby-1.9.3-p0@paperclip-meta/gems/paperclip-3.0.2/lib/paperclip/validators/attachment_content_type_validator.rb:2:in `<module:Paperclip>'
	from /Users/dce/.rvm/gems/ruby-1.9.3-p0@paperclip-meta/gems/paperclip-3.0.2/lib/paperclip/validators/attachment_content_type_validator.rb:1:in `<top (required)>'
	from /Users/dce/.rvm/gems/ruby-1.9.3-p0@paperclip-meta/gems/paperclip-3.0.2/lib/paperclip/validators.rb:2:in `require'
	from /Users/dce/.rvm/gems/ruby-1.9.3-p0@paperclip-meta/gems/paperclip-3.0.2/lib/paperclip/validators.rb:2:in `<top (required)>'
	from /Users/dce/.rvm/gems/ruby-1.9.3-p0@paperclip-meta/gems/paperclip-3.0.2/lib/paperclip.rb:45:in `require'
	from 

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PATH
  remote: .
  specs:
    paperclip-meta (0.4.2)
      paperclip

GEM
  remote: http://rubygems.org/
  specs:
    activemodel (3.2.3)

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encode.c

Simple exercise for learning C:

• Reads text from STDIN
• By default, rotates all text by one character ("abc" => "bcd")
• Prints to STDOUT
• If the "-n [number]" flag is supplied, rotate by that many characters
• If the "-d" (decode) flag is supplied, rotate in the opposite direction
• If the "-f [filename]" flag is supplied, read from that file rather than STDIN

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int index_of(char* needle, char* haystack[], int length) {
  int i;

  for (i = 0; i < length; i++) {
    if (strcmp(haystack[i], needle) == 0) {
      return i;

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Why Not SSL Everywhere?

• Cost
• Setup
• Performance impact
• Mixed-content warnings
• Third-party content (ads, analytics)
• User-embedded content
• CDNs (CNAMEs)

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(define fold
  (lambda (l result fun)
    (cond
      ((null? l) result)
      (else
        (fold (cdr l) (fun result (car l)) fun)))))

(define fold
  (lambda (l init fun)
    (cond

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#include <sys/stat.h>

#include "otp.h"

#define WORD_LENGTH 32
#define BLOCK_SIZE  1024

// int fseek ( FILE * stream, long int offset, int origin );
// size_t fread ( void * ptr, size_t size, size_t count, FILE * stream );
// unsigned char *SHA256 ( const unsigned char *d, size_t n, unsigned char *md );