Class: Oddb2xml::Compressor

Inherits:
Object
  • Object
show all
Includes:
Archive::Tar
Defined in:
lib/oddb2xml/compressor.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(prefix = 'oddb', options = {}) ⇒ Compressor

Returns a new instance of Compressor.



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# File 'lib/oddb2xml/compressor.rb', line 11

def initialize(prefix='oddb', options={})
  @options = options
  @options[:compress_ext] ||= 'tar.gz'
  @options[:format]       ||= :xml
  @compress_file = "#{prefix}_#{@options[:format].to_s}_" + 
    Time.now.strftime("%d.%m.%Y_%H.%M.#{@options[:compress_ext]}")
  @contents = []
  super()
end

Instance Attribute Details

#contents ⇒ Object

Returns the value of attribute contents.



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# File 'lib/oddb2xml/compressor.rb', line 10

def contents
  @contents
end

Instance Method Details

#finalize! ⇒ Object 



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# File 'lib/oddb2xml/compressor.rb', line 20

def finalize!
  if @contents.empty?
    return false
  end
  begin
    case @compress_file
    when /\.tar\.gz$/
      tgz = Zlib::GzipWriter.new(File.open(@compress_file, 'wb'))
      Minitar.pack(@contents, tgz)
    when /\.zip$/
      Zip::ZipFile.open(@compress_file, Zip::ZipFile::CREATE) do |zip|
        @contents.each do |file|
          filename = File.basename(file)
          zip.add(filename, file)
        end
      end
    end
    if File.exists? @compress_file
      @contents.each do |file|
        Oddb2xml.download_finished(file)
      end
    end
  rescue Errno::ENOENT, StandardError
    Oddb2xml.download_finished(@compress_file)
    return false
  end
  return true
end