Class: Bio::Shell::Irb

Inherits:
Object show all
Defined in:
lib/bio/shell/irb.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Irb

Returns a new instance of Irb.



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# File 'lib/bio/shell/irb.rb', line 14

def initialize
  require 'irb'
  begin
    require 'irb/completion'
    Bio::Shell.cache[:readline] = true
  rescue LoadError
    Bio::Shell.cache[:readline] = false
  end
  IRB.setup(nil)
  setup_irb
  start_irb
end

Instance Method Details

#setup_irb ⇒ Object 



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# File 'lib/bio/shell/irb.rb', line 57

def setup_irb
  # set application name
  IRB.conf[:AP_NAME] = 'bioruby'

  # change prompt for bioruby
  $_ = Bio::Shell.colors
  IRB.conf[:PROMPT][:BIORUBY_COLOR] = {
    :PROMPT_I => "bio#{$_[:ruby]}ruby#{$_[:none]}> ",
    :PROMPT_S => "bio#{$_[:ruby]}ruby#{$_[:none]}%l ",
    :PROMPT_C => "bio#{$_[:ruby]}ruby#{$_[:none]}+ ",
    :RETURN   => "  ==> %s\n"
  }
  IRB.conf[:PROMPT][:BIORUBY] = {
    :PROMPT_I => "bioruby> ",
    :PROMPT_S => "bioruby%l ",
    :PROMPT_C => "bioruby+ ",
    :RETURN   => "  ==> %s\n"
  }
  if Bio::Shell.config[:color]
    IRB.conf[:PROMPT_MODE] = :BIORUBY_COLOR
  else
    IRB.conf[:PROMPT_MODE] = :BIORUBY
  end

  # echo mode (uncomment to off by default)
  #IRB.conf[:ECHO] = Bio::Shell.config[:echo] || false

  # irb/input-method.rb >= v1.5 (not in 1.8.2)
  #IRB.conf[:SAVE_HISTORY] = 100000

  # not nicely works
  #IRB.conf[:AUTO_INDENT] = true
end

#start_irb ⇒ Object 



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# File 'lib/bio/shell/irb.rb', line 27

def start_irb
  Bio::Shell.cache[:irb] = IRB::Irb.new

  # needed for method completion
  IRB.conf[:MAIN_CONTEXT] = Bio::Shell.cache[:irb].context

  # store binding for evaluation
  Bio::Shell.cache[:binding] = IRB.conf[:MAIN_CONTEXT].workspace.binding

  # overwrite gets to store history with time stamp
  io = IRB.conf[:MAIN_CONTEXT].io
  io.class.class_eval do
    alias_method :irb_original_gets, :gets
  end

  def io.gets
    line = irb_original_gets
    if line
      Bio::Shell.store_history(line)
    end
    return line
  end

  if File.exist?("./config/boot.rb")
    require "./config/boot"
    require "./config/environment"
    #require 'commands/console'
  end
end