irbrc

# http://blog.nicksieger.com/articles/2006/04/23/tweaking-irb
ARGV.concat ["--readline", "--prompt-mode", "simple"]

require 'irb/completion'
require 'irb/ext/save-history'

begin
  require 'rubygems'
  require 'hirb' # sudo gem install cldwalker-hirb --source http://gems.github.com
  Hirb.enable
rescue LoadError
end

# Log to STDOUT if in Rails
if ENV.include?('RAILS_ENV') && !Object.const_defined?('RAILS_DEFAULT_LOGGER')
   require 'logger'
   RAILS_DEFAULT_LOGGER = Logger.new(STDOUT)
end

IRB.conf[:SAVE_HISTORY] = 500
IRB.conf[:HISTORY_FILE] = File.expand_path('~/.irb_history')

require 'pp'

# http://ozmm.org/posts/time_in_irb.html
def time(times = 1)
  require 'benchmark'
  ret = nil
  Benchmark.bm { |x| x.report { times.times { ret = yield } } }
  ret
end

# list object methods
def local_methods(obj=self)
  (obj.methods - obj.class.superclass.instance_methods).sort
end

def ls(obj=self)
  width = `stty size 2>/dev/null`.split(/\s+/, 2).last.to_i
  width = 80 if width == 0
  local_methods(obj).each_slice(3) do |meths|
    pattern = "%-#{width / 3}s" * meths.length
    puts pattern % meths
  end
end

# reload this .irbrc
def IRB.reload
  load __FILE__
end

class Object
  # list methods which aren't in superclass
  def local_methods(obj = self)
    (obj.methods - obj.class.superclass.instance_methods).sort
  end
  
  # print documentation
  #
  #   ri 'Array#pop'
  #   Array.ri
  #   Array.ri :pop
  #   arr.ri :pop
  def ri(method = nil)
    unless method && method =~ /^[A-Z]/ # if class isn't specified
      klass = self.kind_of?(Class) ? name : self.class.name
      method = [klass, method].compact.join('#')
    end
    system 'ri', method.to_s
  end
end

def copy(str)
  IO.popen('pbcopy', 'w') { |f| f << str.to_s }
end

def copy_history
  history = Readline::HISTORY.entries
  index = history.rindex("exit") || -1
  content = history[(index+1)..-2].join("\n")
  puts content
  copy content
end

def paste
  `pbpaste`
end

load File.dirname(__FILE__) + '/.railsrc' if ($0 == 'irb' && ENV['RAILS_ENV']) || ($0 == 'script/rails' && Rails.env)