Module: Amnesia::Helpers::HelperMethods

Defined in:
lib/amnesia/helpers.rb

Constant Summary collapse

SIZE_UNITS = 
%w[ Bytes KB MB GB TB PB EB ]

Instance Method Summary collapse

Instance Method Details

#alive_hosts ⇒ Object 



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# File 'lib/amnesia/helpers.rb', line 31

def alive_hosts
  @alive_hosts ||= @hosts.select(&:alive?)
end

#graph_url(*data) ⇒ Object 



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# File 'lib/amnesia/helpers.rb', line 12

def graph_url(*data)
  Gchart.pie(data: data, size: '115x115', bg: 'ffffff00')
end

#number_to_human_size(number, precision = 1) ⇒ Object

github.com/rails/rails/blob/fbe335cfe09bf0949edfdf0c4b251f4d081bd5d7/activesupport/lib/active_support/number_helper/number_to_human_size_converter.rb



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# File 'lib/amnesia/helpers.rb', line 17

def number_to_human_size(number, precision=1)
  number, base = Float(number), 1024

  if number.to_i < base
    "%d %s" % [ number.to_i, SIZE_UNITS.first ]
  else
    max = SIZE_UNITS.size - 1
    exp = (Math.log(number) / Math.log(base)).to_i
    exp = max if exp > max # avoid overflow for the highest unit
    result = number / (base**exp)
    "%.#{precision}f %s" % [ result, SIZE_UNITS[exp] ]
  end
end