diff options
author | yugui <yugui@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2008-08-25 15:02:05 +0000 |
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committer | yugui <yugui@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2008-08-25 15:02:05 +0000 |
commit | 0dc342de848a642ecce8db697b8fecd83a63e117 (patch) | |
tree | 2b7ed4724aff1f86073e4740134bda9c4aac1a39 /trunk/lib/irb/ext/save-history.rb | |
parent | ef70cf7138ab8034b5b806f466e4b484b24f0f88 (diff) |
added tag v1_9_0_4
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/tags/v1_9_0_4@18845 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'trunk/lib/irb/ext/save-history.rb')
-rw-r--r-- | trunk/lib/irb/ext/save-history.rb | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/trunk/lib/irb/ext/save-history.rb b/trunk/lib/irb/ext/save-history.rb new file mode 100644 index 0000000000..fdb0a74a86 --- /dev/null +++ b/trunk/lib/irb/ext/save-history.rb @@ -0,0 +1,84 @@ +#!/usr/local/bin/ruby +# +# save-history.rb - +# $Release Version: 0.9.5$ +# $Revision$ +# by Keiju ISHITSUKAkeiju@ruby-lang.org) +# +# -- +# +# +# + +require "readline" + +module IRB + module HistorySavingAbility + @RCS_ID='-$Id$-' + 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) + 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 + end +end + |