dotfiles/languages/ruby/irbrc

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

ARGV.concat %w[--readline --prompt-mode simple]

IRB.conf[:SAVE_HISTORY] = 1000
IRB.conf[:HISTORY_FILE] = "#{ENV['HOME']}/.irb-save-history"

class Object
  # Return a list of methods defined locally for a particular object.  Useful
  # for seeing what it does whilst losing all the guff that's implemented
  # by its parents (eg Object).
  def local_methods(obj = self)
    (obj.methods - obj.class.superclass.instance_methods).sort
  end
end

require 'rubygems'
begin
  require 'pry'
  Pry.start
  exit
rescue LoadError
  if defined?(::Bundler)
    pry_specs = ENV['GEM_PATH'].split(':').
      flat_map { |path| Dir.glob("#{path}/specifications/pry-*.gemspec") }.
      flat_map { |path| Gem::Specification.load(path) }

    pry_specs = pry_specs.
      reverse_sort_by(&:version).
      uniq_by(&:name)

    pry_specs.each do |spec|
      $LOAD_PATH << spec.lib_dirs_glob
    end

    begin
      require 'pry'
      Pry.start
      exit
    rescue LoadError => e
      puts e
    end
  end

end