Class: Subrip::Command

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

Class Method Summary collapse

Class Method Details

.parse(args) ⇒ Object

Return a structure describing the options.



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# File 'lib/command.rb', line 10

def self.parse(args)
  # The options specified on the command line will be collected in *options*.
  # We set default values here.
  @options = OpenStruct.new

  opts = OptionParser.new do |opts|
    opts.banner = "Usage: example.rb [options] input_file output_file"

    opts.separator ""

    opts.on("-o", "--operation OPERATION", 
            [:add, :sub],
            "Operation can either be 'add' or 'sub'") do |oper|
              @options.operation = oper
            end

            opts.on("-t", "--time TIME_TO_SHIFT", 
                    "Time should be of format 11,222 where '11' is the amount of seconds and '222' the amount of milliseconds") do |time|
              @options.time_to_shift = time
            end

            opts.separator ""
            opts.separator "Common options:"

            # No argument, shows at tail.  This will print an options summary.
            # Try it and see!
            opts.on_tail("-h", "--help", "Show this message") do
              puts opts
              exit
            end
  end # OptionParser.new do

  begin
    @options.ip_file = args.fetch(4)
    @options.op_file = args.fetch(5)
  rescue IndexError
    raise OptionParser::MissingArgument, "See --help."
    exit
  end

  opts.parse!(args)
  @options
end

.validate ⇒ Object

parse()



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# File 'lib/command.rb', line 54

def self.validate
  if @options.ip_file.nil? or @options.op_file.nil? or @options.time_to_shift.nil? or @options.operation.nil?
    raise OptionParser::MissingArgument, "See --help."
  else
    true
  end
end