Module: IRB::HistorySavingAbility

Includes:
Readline
Defined in:
lib/irb/ext/save-history.rb,
lib/irb/ext/save-history.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.create_finalizer ⇒ Object 



53
54
55
56
57
58
59
60
61
62
63
64
65
66
 
# File 'lib/irb/ext/save-history.rb', line 53

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

.extended(obj) ⇒ Object 



68
69
70
71
72
 
# File 'lib/irb/ext/save-history.rb', line 68

def HistorySavingAbility.extended(obj)
  ObjectSpace.define_finalizer(obj, HistorySavingAbility.create_finalizer)
  obj.load_history
  obj
end

Instance Method Details

#load_history ⇒ Object 



74
75
76
77
78
79
80
81
82
 
# File 'lib/irb/ext/save-history.rb', line 74

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