p8

String.class_eval             { def instance_method;   "instance method";   end }
String.class.class_eval       { def class_method;      "class method";      end }
String.class.class.class_eval { def eigenclass_method; "eigenclass method"; end }

"a".instance_method # => "instance method"
String.class_method # => "class method"
class X < String
  eigenclass_method
end                 # => "eigenclass method"

p8

class Lisp
  Fs = {
    :label => lambda {|name,value|  Fs[name] = lambda { value } },
    :car =>   lambda {|sexp|        sexp.first },
    :cdr =>   lambda {|sexp|        sexp.slice(1, sexp.size) },
    :cons =>  lambda {|head,tail|   [head] + tail },
    :atom =>  lambda {|sexp|        !sexp.is_a?(Array)  },
    :eq =>    lambda {|a,b|         a == b },
    :if =>    lambda {|cnd,thn,els| cnd ? thn : els }
  }

p8

git commit -m "Removed trailing whitespace" --author="Whitespace Remover <[email protected]>"

p8

    desc "Copies order insertion"
    task :copy_order_insertion => :environment do
      current_version = ENV['CURRENT_VERSION'].try(:upcase)
      raise "Must specify CURRENT_VERSION" unless current_version
      new_version = ENV['NEW_VERSION'].try(:upcase)
      raise "Must specify NEW_VERSION" unless new_version

      # copy files
      paths = %w[
        app/models

p8

#!/usr/bin/env ruby

working_dir = 'working'

Repo = Struct.new(:name, :url, :branch)
repos = [
  Repo.new('rspec',              '[email protected]:rspec/rspec.git'),
  Repo.new('rspec-core',         '[email protected]:rspec/rspec-core.git'),
  Repo.new('rspec-expectations', '[email protected]:rspec/rspec-expectations.git'),
  Repo.new('rspec-mocks',        '[email protected]:rspec/rspec-mocks.git'),

p8

require "bundler/setup"
require "active_record"
require "benchmark/ips"

ActiveRecord::Base.establish_connection(adapter: "sqlite3", database: ":memory:")
ActiveRecord::Base.connection.create_table(:orders) { |t| }
ActiveRecord::Base.connection.create_table(:items) do |t|
  t.references :order, null: false
  t.references :product, null: false
end

p8

require "bundler/setup"
require "active_record"
begin
  require "benchmark/ips"
rescue LoadError
  raise LoadError, "Run install `gem install benchmark-ips`"
end

ActiveRecord::Base.establish_connection(adapter: "sqlite3", database: ":memory:")
ActiveRecord::Base.connection.create_table(:orders) { |t| }