JezK
Edit File: save-history.rb
# # save-history.rb - # $Release Version: 0.9.5$ # $Revision: 24483 $ # $Date: 2009-08-09 17:44:15 +0900 (Sun, 09 Aug 2009) $ # by Keiju ISHITSUKAkeiju@ruby-lang.org) # # -- # # # require "readline" module IRB module HistorySavingAbility @RCS_ID='-$Id: save-history.rb 24483 2009-08-09 08:44:15Z shyouhei $-' end class Context def init_save_history unless (class<<@io;self;end).include?(HistorySavingAbility) @io.extend(HistorySavingAbility) end end def save_history IRB.conf[:SAVE_HISTORY] end def save_history=(val) IRB.conf[:SAVE_HISTORY] = val if val main_context = IRB.conf[:MAIN_CONTEXT] main_context = self unless main_context main_context.init_save_history end end def history_file IRB.conf[:HISTORY_FILE] end def history_file=(hist) IRB.conf[:HISTORY_FILE] = hist end end module HistorySavingAbility include Readline # def HistorySavingAbility.create_finalizer # proc do # if num = IRB.conf[:SAVE_HISTORY] and (num = num.to_i) > 0 # if hf = IRB.conf[:HISTORY_FILE] # file = File.expand_path(hf) # end # file = IRB.rc_file("_history") unless file # open(file, 'w' ) do |f| # hist = HISTORY.to_a # f.puts(hist[-num..-1] || hist) # end # end # end # end def HistorySavingAbility.extended(obj) # ObjectSpace.define_finalizer(obj, HistorySavingAbility.create_finalizer) IRB.conf[:AT_EXIT].push proc{obj.save_history} obj.load_history obj end def load_history hist = IRB.conf[:HISTORY_FILE] hist = IRB.rc_file("_history") unless hist if File.exist?(hist) open(hist) do |f| f.each {|l| HISTORY << l.chomp} end end end def save_history if num = IRB.conf[:SAVE_HISTORY] and (num = num.to_i) > 0 if history_file = IRB.conf[:HISTORY_FILE] history_file = File.expand_path(history_file) end history_file = IRB.rc_file("_history") unless history_file open(history_file, 'w' ) do |f| hist = HISTORY.to_a f.puts(hist[-num..-1] || hist) end end end end end