Class: Procps::PS::CommandBuilder

Inherits:
Object
  • Object
show all
Defined in:
lib/procps/ps/command_builder.rb

Overview

Builds complete ps shell command before execution.

Instance Method Summary collapse

Constructor Details

#initialize(ps) ⇒ CommandBuilder

Returns a new instance of CommandBuilder.



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# File 'lib/procps/ps/command_builder.rb', line 7

def initialize(ps)
  @ps = ps
end

Instance Method Details

#call ⇒ Object 



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# File 'lib/procps/ps/command_builder.rb', line 11

def call
  [@ps.bin_path, *modifiers, *options].compact
end

#modifiers ⇒ Object 



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# File 'lib/procps/ps/command_builder.rb', line 15

def modifiers
  @modifiers ||= @ps.modifiers.size > 0 ? @ps.modifiers.to_a * "" : nil
end

#options ⇒ Object 



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# File 'lib/procps/ps/command_builder.rb', line 19

def options
  @options ||= begin
    @ps.options.flat_map do |opt, value|
      case value
      when false then nil
      when true  then normalize_option_key(opt)
                 else [normalize_option_key(opt), normalize_option_value(value)]
      end
    end
  end
end