Class: Zconv::App

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ App

Returns a new instance of App.



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# File 'lib/zconv/app.rb', line 10

def initialize
  @options = OpenStruct.new(from_code: Encoding.default_external,
                           to_code: Encoding.default_external)

  @parser = OptionParser.new do |parser|
    parser.on('-f ENCODING', '--from-code=ENCODING', :REQUIRED,
              'the encoding of the input') do |enc|
      options.from_code = Encoding.find(enc) if enc
    end

    parser.on('-tENCODING', '--to-code=ENCODING', :REQUIRED,
              'the encoding of the output') do |enc|
      options.to_code = Encoding.find(enc) if enc
    end

    parser.on('-iINPUT', '--input-file=INPUT', :REQUIRED,
              'the input zip file') do |file|
      options.input = file
    end

    parser.on('-oOUTPUT', '--output-file=OUTPUT', :REQUIRED,
              'the output zip file') do |file|
      options.output = file
    end

    parser.on('-h', '--help', 'print this help message') do
      puts parser
      exit
    end
  end
end

Instance Attribute Details

#options ⇒ Object

Returns the value of attribute options.



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# File 'lib/zconv/app.rb', line 8

def options
  @options
end

#parser ⇒ Object

Returns the value of attribute parser.



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# File 'lib/zconv/app.rb', line 8

def parser
  @parser
end

Instance Method Details

#run ⇒ Object 



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# File 'lib/zconv/app.rb', line 42

def run
  ARGV << '--help' if ARGV.empty?
  @parser.parse!

  Zip::File.open(options.output, Zip::File::CREATE) do |out_zip|
    Zip::File.open(options.input) do |in_zip|
      in_zip.each do |in_entry|
        out_name = in_entry.name.encode(options.to_code, options.from_code)
        if in_entry.directory?
          out_zip.mkdir(out_name)
        else
          out_zip.get_output_stream(out_name) do |f|
            f.write(in_entry.get_input_stream.read)
          end
        end
      end
    end
  end
end