Class: Forgitter::CLI::OptionParser

Inherits:
Object
  • Object
show all
Defined in:
lib/forgitter/cli/option_parser.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ OptionParser

Returns a new instance of OptionParser.



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# File 'lib/forgitter/cli/option_parser.rb', line 10

def initialize
  # The options specified on the command line will be collected in *options*.
  # We set default values here.
  @options = Forgitter::DEFAULT_OPTIONS

  @opt_parser = ::OptionParser.new do |opts|
    opts.banner = 'Usage: forgitter [-l] TAG1 [TAG2 ...]'

    opts.on('-l', '--list',
            'Instead of generating a .gitignore, list the ignorefiles that match the tags.') do
      options[:list] = true
    end

    # 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

    # Another typical switch to print the version.
    opts.on_tail('-v', '--version', 'Show version') do
      puts Forgitter::VERSION
      exit
    end
  end

end

Instance Attribute Details

#opt_parser ⇒ Object

Returns the value of attribute opt_parser.



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# File 'lib/forgitter/cli/option_parser.rb', line 8

def opt_parser
  @opt_parser
end

#options ⇒ Object

Returns the value of attribute options.



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# File 'lib/forgitter/cli/option_parser.rb', line 8

def options
  @options
end

Instance Method Details

#help ⇒ Object 



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# File 'lib/forgitter/cli/option_parser.rb', line 39

def help
  opt_parser.help
end

#parse(args) ⇒ Object

Return a structure describing the options.



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# File 'lib/forgitter/cli/option_parser.rb', line 46

def parse(args)
  begin      
    opt_parser.parse!(args)
  rescue ::OptionParser::InvalidOption => e
    puts help
    exit(1)
  end
  options
end