diff options
Diffstat (limited to 'lib/irb/ext/save-history.rb')
| -rw-r--r-- | lib/irb/ext/save-history.rb | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/lib/irb/ext/save-history.rb b/lib/irb/ext/save-history.rb index edc4f234cc..ac358c8ccb 100644 --- a/lib/irb/ext/save-history.rb +++ b/lib/irb/ext/save-history.rb @@ -9,8 +9,6 @@ # # -require "readline" - module IRB module HistorySavingAbility # :nodoc: end @@ -27,7 +25,7 @@ module IRB IRB.conf[:SAVE_HISTORY] end - remove_method :save_history= if method_defined?(:save_history=) + remove_method(:save_history=) if method_defined?(:save_history=) # Sets <code>IRB.conf[:SAVE_HISTORY]</code> to the given +val+ and calls # #init_save_history with this context. # @@ -89,7 +87,7 @@ module IRB def save_history return unless self.class.const_defined?(:HISTORY) history = self.class::HISTORY - if num = IRB.conf[:SAVE_HISTORY] and (num = num.to_i) > 0 + 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 @@ -109,7 +107,12 @@ module IRB open(history_file, "w:#{IRB.conf[:LC_MESSAGES].encoding}", 0600) do |f| hist = history.map{ |l| l.split("\n").join("\\\n") } - f.puts(hist[-num..-1] || hist) + begin + hist = hist.last(num) if hist.size > num and num > 0 + rescue RangeError # bignum too big to convert into `long' + # Do nothing because the bignum should be treated as inifinity + end + f.puts(hist) end end end |