Class: Rpa::Options

Inherits:
Object
  • Object
show all
Defined in:
lib/rpa/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/rpa/options.rb', line 9

def initialize(args)
  @args = args.dup
  # set the default options
  @options = {
    :in_dir => File.expand_path('.'),
    :verbose => false,
    :title => "Ruby Photo Album",
    :theme => "galleriffic",
    :list_themes => false
  }
end

Instance Attribute Details

#args ⇒ Object (readonly)

Returns the value of attribute args.



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

def args
  @args
end

#options ⇒ Object (readonly)

Returns the value of attribute options.



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

def options
  @options
end

Instance Method Details

#parse! ⇒ Object 



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# File 'lib/rpa/options.rb', line 21

def parse!
  OptionParser.new do |opts|
    opts.banner = "Usage: $ rpa [options]\n\n" +
      "rpa is Ruby Photo Album (Generator)\n\n" +
      "Default values:\n" + @options.map {|v| "\t#{v[0]} = #{v[1]}" }.join("\n") + "\n\nOptions:"

    # required arguments

    opts.on("-o", "--out-dir [OUT_DIR]") do |arg|
      @options[:out_dir] = arg
    end

    # optional arguments

    opts.on("-i", "--in-dir [IN_DIR]") do |arg|
      @options[:in_dir] = arg
    end

    opts.on("-v", "--[no-]verbose") do |arg|
      @options[:verbose] = arg
    end

    opts.on("-t", "--title [TITLE]") do |arg|
      @options[:title] = arg
    end

    opts.on("-s", "--subtitle [SUBTITLE]") do |arg|
      @options[:subtitle] = arg
    end

    opts.on("--theme [THEME]") do |arg|
      @options[:theme] = arg
    end

    opts.on("-l", "--[no-]list", "list themes") do |arg|
      @options[:list_themes] = arg
    end

    opts.on_tail("--help") do
      puts opts
      exit 0
    end
  end.parse!(args)
  validate!
  self
end

#validate! ⇒ Object 



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# File 'lib/rpa/options.rb', line 68

def validate!
  # validate options
  if @options[:in_dir].to_s.strip == "" ||
    !File.directory?(@options[:in_dir])
    raise "IN_DIR is required."
  end
end