Class: CFA::Grub2::Default::KernelParams::ParamTree

Inherits:
Object
  • Object
show all
Defined in:
lib/cfa/grub2/default.rb

Overview

Represents parsed kernel parameters tree. Parses in initialization and backserilized by ‘to_string`. TODO: replace it via augeas parser when someone write lense

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(line) ⇒ ParamTree

Returns a new instance of ParamTree.



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# File 'lib/cfa/grub2/default.rb', line 204

def initialize(line)
  line ||= ""
  pairs = line.split(/\s/)
              .reject(&:empty?)
              .map { |e| e.split("=", 2) }

  @data = pairs.map do |k, v|
    {
      key:   k,
      value: v || true, # kernel param without value have true
    }
  end
end

Instance Attribute Details

#data ⇒ Object (readonly)

Returns the value of attribute data.



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# File 'lib/cfa/grub2/default.rb', line 202

def data
  @data
end

Instance Method Details

#to_string ⇒ Object 



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# File 'lib/cfa/grub2/default.rb', line 218

def to_string
  snippets = @data.map do |e|
    if e[:value] == true
      e[:key]
    else
      "#{e[:key]}=#{e[:value]}"
    end
  end

  snippets.join(" ")
end