"Could not find crack-0.1.8 in any of the sources" -- what does crack do? 'gem? crack'

gem?.rb

#!/usr/bin/env ruby

# I named this file gem? and put it into my path. I'm sure that cuteness will blow up in
# my face at some point!

require 'rubygems'
require 'hpricot'
require 'open-uri'
require 'CGI'

class RubyGemsSearch
  attr_accessor :options
  
  def initialize(options = {})
    @options = options
    @matches_markup = []
    
    if !@options[:query].nil?
      search
    end
  end

  def search
    encoded_query = CGI::escape(@options[:query])
    doc = open("http://rubygems.org/search?utf8=%E2%9C%93&query=#{encoded_query}") { |f| Hpricot(f) }
    
    @matches_markup = (doc/".gems ol a")
  end

  def matches
    @matches_markup.map do |markup|
      tidied = markup.inner_html
      tidied.gsub!(/\s+/,' ')
      tidied.gsub!(/\<strong\>/, '')
      tidied.gsub!(/\<\/strong\>/, ':')
      tidied.strip!
      tidied
    end
  end

  def matches?
    @matches_markup.length > 0
  end
end

if ARGV.length == 0
  $stderr.puts 'usage: gem? [name of gem]'
  abort
end

search = RubyGemsSearch.new(:query => ARGV.join(' '))

if search.matches?
  $stdout.puts search.matches[0]
else
  $stderr.puts "No gems found matching '#{search.options[:query]}'"
end