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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
# File irb/ext/save-history.rb, line 65 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
# File irb/ext/save-history.rb, line 72 def load_history if history_file = IRB.conf[:HISTORY_FILE] history_file = File.expand_path(history_file) end history_file = IRB.rc_file("_history") unless history_file if File.exist?(history_file) open(history_file) do |f| f.each {|l| HISTORY << l.chomp} end end end
# File irb/ext/save-history.rb, line 84 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