IRB config

.irbrc

def view_hash(hash)
  a = hash.is_a?(Hash) ? [hash] : hash
  Hirb::Helpers::Table.render a, :vertical => true
end

if defined? IRB  
  require 'irb/completion'
  require 'rubygems'
  begin
    require 'hirb'
    Hirb::View.enable
  rescue LoadError
    # pass
  end
  
  histsupport = true
  begin
    require 'irb/ext/save-history'
  rescue LoadError
    histsupport = false
  end

  HISTFILE = "#{ENV['HOME']}/.irb.hist"
  MAXHISTSIZE = 100
  
  unless histsupport
    begin
      if defined? Readline::HISTORY
        histfile = File::expand_path( HISTFILE )
        if File::exists?( histfile )
          lines = IO::readlines( histfile ).collect {|line| line.chomp}
          puts "Read %d saved history commands from %s." %
            [ lines.nitems, histfile ] if $DEBUG || $VERBOSE
          Readline::HISTORY.push( *lines )
        else
          puts "History file '%s' was empty or non-existant." %
            histfile if $DEBUG || $VERBOSE
        end
    
        Kernel::at_exit {
          lines = Readline::HISTORY.to_a.reverse.uniq.reverse
          lines = lines[ -MAXHISTSIZE, MAXHISTSIZE ] if lines.nitems > MAXHISTSIZE
          $stderr.puts "Saving %d history lines to %s." %
    
            [ lines.length, histfile ] if $VERBOSE || $DEBUG
          File::open( histfile, File::WRONLY|File::CREAT|File::TRUNC ) {|ofh|
            lines.each {|line| ofh.puts line }
          }
        }
      end
    end
    puts "Custom history support enabled"
  else
    require 'irb/ext/save-history'
    IRB.conf[:SAVE_HISTORY] = MAXHISTSIZE
    IRB.conf[:HISTORY_FILE] = HISTFILE
  end 
  
  module Kernel
    def m(object=Object.new, pattern=nil)
      if object.class.name == "DBus::ProxyObjectInterface"
        methods = object.methods.keys.sort
      else
        methods = object.public_methods(false).sort
      end
      methods = methods.grep pattern unless pattern.nil?
      #ObjectMethods.new(methods)
      methods
    end
  end

  if defined?(Hirb)
    Hirb.add_view Hash, :method => :view_hash
  end
end

if defined? RUBY_DESCRIPTION
  puts RUBY_DESCRIPTION
else
  if defined? JRUBY_VERSION
    puts "ruby #{RUBY_VERSION} (jruby #{JRUBY_VERSION}) (#{RUBY_RELEASE_DATE} patchlevel #{RUBY_PATCHLEVEL}) [#{RUBY_PLATFORM}]"
  else
    puts "ruby #{RUBY_VERSION} (#{RUBY_RELEASE_DATE} patchlevel #{RUBY_PATCHLEVEL}) [#{RUBY_PLATFORM}]"
  end
end

puts RUBY_COPYRIGHT.sub(/^[^-]+- /, "")

# vim: filetype=ruby ts=2 sw=2 et