class Byebug::WidthSetting

def exists?(command)
  ENV['PATH'].split(File::PATH_SEPARATOR).any? do |d|
    File.exist?(File.join(d, command))
  end
end

def help
  "Number of characters per line in byebug's output"
end

def initialize
  if ENV['COLUMNS'] =~ /^\d+$/
    @value = ENV['COLUMNS'].to_i
  elsif STDIN.tty? && exists?('stty')
    @value = `stty size`.scan(/\d+/)[1].to_i
  else
    @value = 160
  end
end

def to_s
  "Maximum width of byebug's output is #{value}"
end