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9deb82b1d9
owner-only-readable file and change the permission of a file that already exists [Bug #7694]. Thanks Nobuhiro IMAI for bug reports. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38813 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
113 lines
2.6 KiB
Ruby
113 lines
2.6 KiB
Ruby
# save-history.rb -
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# $Release Version: 0.9.6$
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# $Revision$
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# by Keiju ISHITSUKA(keiju@ruby-lang.org)
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#
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# --
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#
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#
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#
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require "readline"
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module IRB
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module HistorySavingAbility # :nodoc:
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@RCS_ID='-$Id$-'
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end
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class Context
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def init_save_history# :nodoc:
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unless (class<<@io;self;end).include?(HistorySavingAbility)
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@io.extend(HistorySavingAbility)
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end
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end
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# A copy of the default <code>IRB.conf[:SAVE_HISTORY]</code>
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def save_history
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IRB.conf[:SAVE_HISTORY]
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end
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# Sets <code>IRB.conf[:SAVE_HISTORY]</code> to the given +val+ and calls
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# #init_save_history with this context.
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def save_history=(val)
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IRB.conf[:SAVE_HISTORY] = val
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if val
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main_context = IRB.conf[:MAIN_CONTEXT]
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main_context = self unless main_context
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main_context.init_save_history
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end
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end
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# A copy of the default <code>IRB.conf[:HISTORY_FILE]</code>
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def history_file
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IRB.conf[:HISTORY_FILE]
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end
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# Set <code>IRB.conf[:HISTORY_FILE]</code> to the given +hist+.
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def history_file=(hist)
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IRB.conf[:HISTORY_FILE] = hist
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end
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end
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module HistorySavingAbility # :nodoc:
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include Readline
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# def HistorySavingAbility.create_finalizer
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# proc do
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# if num = IRB.conf[:SAVE_HISTORY] and (num = num.to_i) > 0
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# if hf = IRB.conf[:HISTORY_FILE]
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# file = File.expand_path(hf)
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# end
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# file = IRB.rc_file("_history") unless file
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# open(file, 'w' ) do |f|
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# hist = HISTORY.to_a
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# f.puts(hist[-num..-1] || hist)
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# end
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# end
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# end
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# end
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def HistorySavingAbility.extended(obj)
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# ObjectSpace.define_finalizer(obj, HistorySavingAbility.create_finalizer)
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IRB.conf[:AT_EXIT].push proc{obj.save_history}
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obj.load_history
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obj
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end
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def load_history
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if history_file = IRB.conf[:HISTORY_FILE]
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history_file = File.expand_path(history_file)
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end
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history_file = IRB.rc_file("_history") unless history_file
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if File.exist?(history_file)
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open(history_file) do |f|
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f.each {|l| HISTORY << l.chomp}
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end
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end
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end
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def save_history
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if num = IRB.conf[:SAVE_HISTORY] and (num = num.to_i) > 0
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if history_file = IRB.conf[:HISTORY_FILE]
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history_file = File.expand_path(history_file)
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end
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history_file = IRB.rc_file("_history") unless history_file
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# Change the permission of a file that already exists[BUG #7694]
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begin
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if File.stat(history_file).mode & 066
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File.chmod(0600, history_file)
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end
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rescue Errno::ENOENT
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rescue
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raise
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end
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open(history_file, 'w', 0600 ) do |f|
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hist = HISTORY.to_a
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f.puts(hist[-num..-1] || hist)
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end
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end
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end
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end
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end
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