ono

# If you run unicorn on FreeBSD Jail, you might experience the following error 
# when you send some signals such as HUP, USR2 to master process.
# adding listener failed addr=0.0.0.0:8080 (in use)
# 
# This snippet gives you a workaround without specifying IP address.

# Returns true if the host is in the Jail.
def in_jail?
  `sysctl security.jail.jailed` =~ /security.jail.jailed: 1/ ? true : false
end

ono

# BaseJob class is an abstruct class for all jobs.
# The common operations such as newrelic monitoring should be written here.
# Jobs which is inherited from this class have to override instance method of perform instead of the class method to be monitored.
# Please check hello_world_job.rb as an example.
class BaseJob
  # include NewRelic::Agent::Instrumentation::ControllerInstrumentation

  def self.skip_mode?
    $rails_config && $rails_config.app_config && $rails_config.app_config['resque_skip_queue']
  end

ono

  def perform(member_course_id, ls_db, retry_count=0)
    member_course = nil
    begin
      member_course = MemberCourse.find(member_course_id)
    rescue ActiveRecord::RecordNotFound => e
      if retry_count<3
        # Chances are that the job is enqueued before the transaction is
        # committed. #6511
        Resque.enqueue_at(30.seconds.from_now, self.class, member_course_id, ls_db, retry_count+1)
        return

ono

require 'formula'

class FileMagic <Formula
  url 'ftp://ftp.astron.com//pub/file//file-5.04.tar.gz'
  homepage 'http://www.darwinsys.com/file/'
  md5 'accade81ff1cc774904b47c72c8aeea0'

  def install
    system "./configure"
    system "make install"

ono

kaz:~ kazueono$ irb
>> bday = Time.local 2011,3,19
=> Sat Mar 19 00:00:00 +0000 2011
>> bday.yday
=> 78
>> Time.now
=> Thu Feb 03 08:19:58 +0000 2011
>> Time.now.yday
=> 34
>> bday.yday - Time.now.yday

ono

module Maybe
  def wrap_block(block)
    lambda do |a|
      a==nil ? nil : block.call(a)
    end
  end
end

module MaybeNumeric
  def wrap_block(block)

ono

class TryChain
  attr_reader :obj

  def initialize(obj)
    @obj = obj
  end

  def method_missing(sym,*args,&block)
    @obj = @obj.respond_to?(sym) ? @obj.send(sym,*args,&block) : nil
    self

ono

A response for:

https://gist.github.com/660194
https://gist.github.com/660968
https://gist.github.com/661951

I don't discuss here whether you shouldn't change the Object class behaviour.
I will write my thoughts on an assumption which it were in ruby standard library.

1. Method name must be shorter at least

ono

# You have to define Gemspec files for Rails 2.3 libraries. A commit bellow will help it:
# http://github.com/jpzwarte/rails/commit/55ede36d8907f481b18fcefa21d099f69ae9965b

# Load rails from github
git 'git://github.com/reallyenglish/rails.git', :branch => '2-3-re', :ref => '1760b049f43ba2ab32eb47fdc42f5638115aeb8a' do
  %w(active_support active_record action_pack action_mailer active_resource).each { |lib| gem lib.sub(/_/,''), '2.3.8', :require=>lib}
  gem 'rails', '2.3.8'
end

# Load rails from your local

ono

require 'rmagick'

dir = File.dirname(__FILE__)

Dir.glob "#{dir}/**/*.jpg" do |filename|
  image = Magick::Image.read(filename)[0]

  # note: there is another useful method which you can use to resize and crop square
  # image.resize_to_fill(200)