Class: Byebug::History

Inherits:
Object
  • Object
show all
Defined in:
lib/byebug/history.rb

Constant Summary collapse

DEFAULT_FILE = 
File.expand_path("#{ENV['HOME']||'.'}/.byebug_hist")
DEFAULT_MAX_SIZE = 
256

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.file ⇒ Object

Returns the value of attribute file.



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# File 'lib/byebug/history.rb', line 12

def file
  @file
end

.max_size ⇒ Object

Returns the value of attribute max_size.



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# File 'lib/byebug/history.rb', line 12

def max_size
  @max_size
end

Class Method Details

.load ⇒ Object 



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# File 'lib/byebug/history.rb', line 14

def load
  open(@file, 'r') do |file|
    file.each do |line|
      line.chomp!
      Readline::HISTORY << line
    end
  end if File.exist?(@file)
end

.save ⇒ Object 



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# File 'lib/byebug/history.rb', line 23

def save
  open(@file, 'w') do |file|
    Readline::HISTORY.to_a.last(@max_size).each do |line|
      file.puts line unless line.strip.empty?
    end
  end
end

.to_s(size = @max_size) ⇒ Object 



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# File 'lib/byebug/history.rb', line 31

def to_s(size = @max_size)
  n_entries = Readline::HISTORY.length < size ? Readline::HISTORY.length : size

  first = Readline::HISTORY.length - n_entries
  commands = Readline::HISTORY.to_a.last(n_entries)

  s = ''
  commands.each_with_index do |command, index|
    s += ("%5d  %s\n" % [first + index + 1, command])
  end

  return s
end