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bda5b09937
(https://github.com/ruby/irb/pull/901)
* Always save irb_history in HOME or XDG_CONFIG_HOME
Also split irbrc search logic from irb_history search logic as a refactor
* Remove IRB.conf[:RC_NAME_GENERATOR] because it's not configurable
This conf is used to specify which irbrc to load. Need to configure before irbrc is loaded, so it's actually not configurable.
This conf is also used for history file search, but it is configurable by conf[:HISTORY_FILE].
* remove rc_file_test because it is tested with rc_files, remove useless test setup
* Make internal irbrc searching method private
11d03a6ff7
87 lines
2.7 KiB
Ruby
87 lines
2.7 KiB
Ruby
require "pathname"
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module IRB
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module HistorySavingAbility # :nodoc:
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def support_history_saving?
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true
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end
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def reset_history_counter
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@loaded_history_lines = self.class::HISTORY.size
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end
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def load_history
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history = self.class::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 history_file && File.exist?(history_file)
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File.open(history_file, "r:#{IRB.conf[:LC_MESSAGES].encoding}") do |f|
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f.each { |l|
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l = l.chomp
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if self.class == RelineInputMethod and history.last&.end_with?("\\")
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history.last.delete_suffix!("\\")
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history.last << "\n" << l
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else
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history << l
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end
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}
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end
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@loaded_history_lines = history.size
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@loaded_history_mtime = File.mtime(history_file)
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end
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end
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def save_history
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history = self.class::HISTORY.to_a
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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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# When HOME and XDG_CONFIG_HOME are not available, history_file might be nil
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return 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 != 0
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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 Errno::EPERM
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return
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rescue
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raise
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end
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if File.exist?(history_file) &&
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File.mtime(history_file) != @loaded_history_mtime
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history = history[@loaded_history_lines..-1] if @loaded_history_lines
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append_history = true
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end
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pathname = Pathname.new(history_file)
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unless Dir.exist?(pathname.dirname)
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warn "Warning: The directory to save IRB's history file does not exist. Please double check `IRB.conf[:HISTORY_FILE]`'s value."
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return
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end
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File.open(history_file, (append_history ? 'a' : 'w'), 0o600, encoding: IRB.conf[:LC_MESSAGES]&.encoding) do |f|
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hist = history.map{ |l| l.scrub.split("\n").join("\\\n") }
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unless append_history
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begin
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hist = hist.last(num) if hist.size > num and num > 0
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rescue RangeError # bignum too big to convert into `long'
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# Do nothing because the bignum should be treated as infinity
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end
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end
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f.puts(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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