Fetch curated list of Github repos sorted by watchers. Each repo is cached for a random time so only the first fetch will have to hit the API N times.

repo.rb

class Repo
  REPOS = %w(
    benpickles/js-model
    benpickles/peity
    ismasan/hash_mapper
    ismasan/jbundle
    markevans/dragonfly
    mloughran/api_cache
    mloughran/em-hiredis
    mloughran/juggler
    mloughran/signature
    olivernn/davis.js
  )

  include HTTParty

  base_uri 'http://github.com/api/v2/json/repos/show'
  format :json

  attr_reader :attributes, :id

  def self.all
    REPOS.map { |id|
      begin
        new(id).tap { |repo|
          repo.fetch
        }
      rescue APICache::APICacheError
        nil
      end
    }.compact.sort_by { |repo|
      repo.watchers
    }.reverse
  end

  def initialize(id)
    @id = id
  end

  def fetch
    @attributes = APICache.get(id, :cache => 1.day + rand(5.days), :valid => :forever) do
      self.class.get("/#{id}")['repository']
    end
  end

  def method_missing(name)
    attributes[name.to_s] || super
  end
end