Class: SrtShifter::Options

Inherits:
Object
  • Object
show all
Defined in:
lib/srtshifter/options.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(args) ⇒ Options

Returns a new instance of Options.



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# File 'lib/srtshifter/options.rb', line 8

def initialize(args)
  @arguments = args

  @operations = ["ADD", "SUB"]

  @options = {}
end

Instance Attribute Details

#options ⇒ Object

Returns the value of attribute options.



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# File 'lib/srtshifter/options.rb', line 6

def options
  @options
end

Instance Method Details

#parse_options ⇒ Object 



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# File 'lib/srtshifter/options.rb', line 16

def parse_options
  @arguments.options do |opts|

    opts.banner = "Usage:  #{File.basename($PROGRAM_NAME)} [OPTIONS] input_file output_file"
    
    opts.separator ""
    opts.separator "Common Options:"

    opts.on("-o","--operation (ADD|SUB)", String, "Type ADD to increase time or SUB to decrease time.") do |o|
      @options[:operation] = o.upcase
    end

    opts.on("-t","--time (VALUE)", Float, "Time in milliseconds.") do |n|
      @options[:time] = n
    end

    opts.on_tail('-h', '--help', 'Show this help message.') do
      puts(opts)
      # exit(0)
    end
   
     opts.on_tail("-v","--version", "Show version") do
       puts SrtShifter::VERSION
      exit
     end
    
    opts.parse!
  end
end

#validate_args ⇒ Object 



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# File 'lib/srtshifter/options.rb', line 46

def validate_args
  begin

      raise "Operation option is missing" if @options[:operation].nil?
      raise "Unknown operation: #{@options[:operation]}" unless @operations.include? @options[:operation].upcase

      raise "Time option is missing" if @options[:time].nil?
                
      raise "Input file is missing" if @arguments[0].nil?
      @options[:input] = @arguments[0]
      
      raise "Output file is missing" if @arguments[1].nil?
      @options[:output] = @arguments[1]

    rescue Exception => ex
      puts "#{ex.message}. Please use -h or --help for usage."
      # exit(1)
    end
end