batasrki

# Installs Ruby, makes 1.9.2 the default.


sudo aptitude install ruby rubygems ri ruby1.9.1 ri1.9.1 jruby

sudo update-alternatives --remove-all gem

sudo update-alternatives --install /usr/bin/ruby ruby /usr/bin/ruby1.8 300 \
    --slave /usr/share/man/man1/ruby.1.gz ruby.1.gz \
            /usr/share/man/man1/ruby1.8.1.gz \

batasrki

source :rubygems


path '/Users/bkerley/Documents/ripple' do
  gem 'riak-client'
  gem 'ripple'
end

batasrki

###
# This is a JSON building library.  It allows you to build data structures
# to dump as JSON.  Here is a sample of how to use it:
#
# def person_hash(person)
#   {
#     'name'    => person.name,
#     'age'     => person.age,
#     'friends' => person.friends.map { |x| person_hash x }
#   }

batasrki

var z="http://gist.github.com/",y=document.write,x=$("body"),w=$("p.gist").map(function(b,a){a=$(a);var c=$("a",a),u=c.attr("href");if(c.length&&u.indexOf(z)==0)return{p:a,id:u.substring(z.length)}}).get(),v=function(){if(w.length==0)document.write=y;else{var b=w.shift();document.write=function(){document.write=function(a){b.p.replaceWith(a);v()}};x.append('<scr'+'ipt src="'+z+b.id+'.js"></scr'+'ipt>')}};v();

batasrki

Ruby Debugger

Most of the time simple output statements using warn, raise, or a logger will help you find your issue. But sometimes you need the big guns, and that means ruby-debug.

Ruby-Debug

The ruby-debug package has had some rocky times during the transition from Ruby 1.8.7 to 1.9.2 and beyond. But now, finally, the debugger is reliable and usable.

Installation

batasrki

Currently the RubyGems index is stored as a Gzip file that is a marshalled array. Whenever Bundler needs to install a gem that is not yet installed it downloads the index, gunzips it and unmarshals it. It then looks for dependencies that are described in another file that is also a gzipped and marshalled file. There are several issues that arise from this setup:

• The full index must be downloaded and parsed, but does not contain dependency data, which must then be downloaded and parsed. This is a relatively time consuming process.
• The index must be centralized.

Additionally the gems themselves are currently centralized since there is nothing in the meta data that indicates where the gem should be downloaded from. However in order to allow this it is important to find ways of keeping the index from being poisoned (is this an issue in the centralized system?)

Dependency Resolution

batasrki

class EngineVariant
  def api_representation
    { engine: engine, locale: locale }
  end
end

batasrki

#!/usr/bin/env ruby

require 'nokogiri'

path = ARGV.shift || File.join(ENV['HOME'], "Music/iTunes/iTunes Music Library.xml")
doc = Nokogiri.XML File.open(path)

tracks = []
doc.xpath('/plist/dict/dict/dict').each do |node|
  children = node.children.map(&:text).reject { |x| x.strip.empty? }

batasrki

  mysqldump do
    options "-ceKq --single-transaction --create-options"

    username = "some"
    pass = "thing"

    user username
    password pass
    socket "/var/run/mysqld/mysqld.sock"

batasrki

require "stateful"

class Folder < ActiveRecord::Base
  include Stateful

  # ...

  stateful do
    state :active
    state :inactive