niklas

class A
  def self.my_eval
    B.class_eval do
      puts "self in A.my_eval: #{self}"
      yield
    end
  end
end

class B

niklas

undefined local variable or method `o' for Gherkin::Rubify:Module
/var/lib/hudson/.rvm/gems/ree-1.8.7-2010.02/gems/gherkin-2.3.6/lib/gherkin/rubify.rb:19
/var/lib/hudson/.rvm/gems/ree-1.8.7-2010.02/gems/activesupport-3.0.7/lib/active_support/dependencies.rb:239:in `require'
/var/lib/hudson/.rvm/gems/ree-1.8.7-2010.02/gems/activesupport-3.0.7/lib/active_support/dependencies.rb:239:in `require'
/var/lib/hudson/.rvm/gems/ree-1.8.7-2010.02/gems/activesupport-3.0.7/lib/active_support/dependencies.rb:225:in `load_dependency'
/var/lib/hudson/.rvm/gems/ree-1.8.7-2010.02/gems/activesupport-3.0.7/lib/active_support/dependencies.rb:596:in `new_constants_in'
/var/lib/hudson/.rvm/gems/ree-1.8.7-2010.02/gems/activesupport-3.0.7/lib/active_support/dependencies.rb:225:in `load_dependency'
/var/lib/hudson/.rvm/gems/ree-1.8.7-2010.02/gems/activesupport-3.0.7/lib/active_support/dependencies.rb:239:in `require'
/var/lib/hudson/.rvm/gems/ree-1.8.7-2010.02/gems/cucumber-0.10.2/lib/cucumber/ast/table.rb:1
/var/lib/hudson/.rvm/gems/

niklas

activemodel (3.0.3) lib/active_model/attribute_methods.rb:364:in `method_missing'
activerecord (3.0.3) lib/active_record/attribute_methods.rb:46:in `method_missing'
devise (1.1.2) lib/devise/models/database_authenticatable.rb:40:in `password='
activerecord (3.0.3) lib/active_record/base.rb:1559:in `send'
activerecord (3.0.3) lib/active_record/base.rb:1559:in `attributes='
activerecord (3.0.3) lib/active_record/base.rb:1555:in `each'
activerecord (3.0.3) lib/active_record/base.rb:1555:in `attributes='
activerecord (3.0.3) lib/active_record/base.rb:1406:in `initialize'
adva-core (0.0.9) lib/patches/rails/sti_associations.rb:13:in `new'
adva-core (0.0.9) lib/patches/rails/sti_associations.rb:13:in `build_association'

niklas

package 'debootstrap'
package 'apt-cacher-ng'
package 'inotify-tools'

include_recipe 'lxc::manage'
include_recipe 'lxc::network_bridge'
include_recipe 'lxc::dns'

host = node[:container]

niklas

# now you can use 
#   form.button :submit 
# to get a real button that is stylable

class SimpleForm::FormBuilder
  def submit_button(title=nil, options={}, &block)
    title, options = nil, title if title.is_a?(Hash)
    title ||= submit_default_value
    options[:type] = 'submit'
    template.add_class_to_html_options(options, 'submit')

niklas

#!/usr/bin/env ruby

# How to run a system command from ruby within a clean bash that has never sourced rvm using a custom ruby version

# 1) install rvm as the correct user
# 2) do NOT follow the instructions about sourcing and adding this to your .bashrc
# 3) run the following (change the versions accordingly)

ruby_versions = %w(ruby-1.8.7-p330 rbx-head)

niklas

# put this in config/initializer/fields_with_errors.rb

ActionView::Base.field_error_proc = Proc.new do |html_tag, instance|
  if html_tag =~ /<(input|label|textarea|select)/
    error_class = 'error'

    doc = Nokogiri::XML(html_tag)
    doc.children.each do |field|
      unless field['type'] == 'hidden'
        unless field['class'] =~ /\berror\b/

niklas

/*
  please do me a favour: do the following on a amd64 ubuntu

  $ gcc -o sizeof64 sizeof64.c
  $ ./sizeof64

  are they different? would this be OK? If not, what could cause this?
  If it is OK, why is ruby 1.9 not able to implement syscall()

  https://github.com/ruby/ruby/blob/ruby_1_9_2/io.c#L7529

niklas

# works with textnodes, too

Nokogiri::XML::Node.class_eval do
  def to_hash
    unless children.empty?
      h = children.to_hash
      if h.length == 1 && h.has_key?(:onlytext)
        { name => h[:onlytext] }
      else
        { name => children.to_hash }