patshaughnessy

* 
 * application.css.less
 *= require_self
*/  

@import "twitter/bootstrap/reset.less";

@import "twitter/bootstrap/variables.less";

// Override link color for my app:

patshaughnessy

/* 
 * application.css.scss
 *= require_self
*/  

@import "bootstrap/reset.css.scss";

@import "bootstrap/variables.css.scss";

// Override link color for my app:

patshaughnessy

def avatar_geometry(style = :original)
  @geometry ||= {}
  begin
    path = avatar.path(style)
    unless path
      temp_file = Tempfile.open("#{avatar_file_name}_#{style}")
      temp_file << avatar.file_contents(style)
      path = temp_file.path
    end
    @geometry[style] ||= Paperclip::Geometry.from_file path

patshaughnessy

class Hostess < Sinatra::Base

... etc ...

  def serve_via_s3
    serve do
      redirect "http://#{$rubygems_config[:s3_domain]}#{request.path_info}"
    end
  end

patshaughnessy

class Pusher
  attr_reader :user, :spec, :message, :code, :rubygem, :body, :version, :version_id

  def initialize(user, body, host_with_port=nil)
    @user = user
    @body = StringIO.new(body.read)
    @indexer = Indexer.new
    @host_with_port = host_with_port
  end

patshaughnessy

def cripple_rubygems(specs)
  reverse_rubygems_kernel_mixin

  executables = specs.map { |s| s.executables }.flatten
  Gem.source_index # ensure RubyGems is fully loaded

  ::Kernel.send(:define_method, :gem) do |dep, *reqs|

...etc...

patshaughnessy

(gdb) bt
#0  str_new (klass=4303856320, ptr=0x100680500 "The Ruby core team is playing a joke on us!", len=43) at string.c:389
#1  0x00000001001179f8 in rb_str_new [inlined] () at /Users/pat/.rvm/src/ruby-1.9.3-preview1/string.c:416
#2  0x00000001001179f8 in rb_enc_str_new (ptr=<value temporarily unavailable, due to optimizations>, len=<value temporarily unavailable, due to optimizations>, enc=0x1004027e0) at string.c:430
#3  0x000000010009f725 in parser_str_new (p=<value temporarily unavailable, due to optimizations>, n=<value temporarily unavailable, due to optimizations>, enc=0x1004027e0, func=2, enc0=0x1004027e0) at parse.y:5401
#4  0x00000001000aa677 in parser_parse_string (parser=0x10060e000, quote=0x1010793e0) at parse.y:6033
#5  0x00000001000ab285 in parser_yylex (parser=0x10060e000) at parse.y:6645
#6  0x00000001000b4999 in ruby_yyparse (parser=<value temporarily unavailable, due to optimizations>) at parse.y:7922
#7  0x00000001000c24bf in yycompile0 (arg=<value temporarily unavailable, due to optimi

patshaughnessy

I go to the home page
And I follow "sign up"
And I fill in username with "Matt"
And I fill in password with…

patshaughnessy

Great question! It turns out that in Ruby 1.9 or 2.0 it's actually faster to use each, and not for (by a similar very small amount).

Looking into why for is faster than each in Ruby 1.8.7, it turns out Ruby 1.8.7 uses a slightly different code path for each vs. for, although for still is automatically evaluated as a call to each internally:

if (nd_type(node) == NODE_ITER) {
  result = rb_eval(self, node->nd_iter);
}
else {
  VALUE recv;

patshaughnessy

The "tostring" instruction below calls into this C code, from string.c. This checks if the expression/object is already a string, and does nothing if it is. If it's not a string, it calls "to_s" on the object.

VALUE
rb_obj_as_string(VALUE obj)
{
    VALUE str;

    if (RB_TYPE_P(obj, T_STRING)) {
	return obj;
    }