Module: MultiZip::Backend::Rubyzip

Defined in:
lib/multi_zip/backend/rubyzip.rb

Constant Summary collapse

BUFFER_SIZE = 
8192

Instance Method Summary collapse

Instance Method Details

#extract_member(member_path, destination_path, options = {}) ⇒ Object 



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# File 'lib/multi_zip/backend/rubyzip.rb', line 30

def extract_member(member_path, destination_path, options = {})
  read_operation do |zip_file|
    if member = zip_file.glob(member_path).first
      stream = member.get_input_stream

      output_file = ::File.new(destination_path, 'wb')

      while chunk = stream.read(BUFFER_SIZE)
        output_file.write chunk
      end

      output_file.close
    else
      zip_file.close
      member_not_found!(member_path)
    end
  end
  destination_path
end

#list_members(prefix = nil, options = {}) ⇒ Object 



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# File 'lib/multi_zip/backend/rubyzip.rb', line 14

def list_members(prefix=nil, options={})
  read_operation do |zip_file|
    zip_file.map(&:name).select{|n| prefix ? n =~ /^#{prefix}/ : true}.sort
  end
end

#member_info(member_path, options = {}) ⇒ Object 



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# File 'lib/multi_zip/backend/rubyzip.rb', line 58

def member_info(member_path, options = {})
  read_operation do |zip_file|
    if zip_entry = zip_file.detect{|ze| ze.name == member_path}
      {
        path: zip_entry.name,
        size: zip_entry.size.to_i,
        type: zip_entry.ftype,
        original: zip_entry
      }
    else
      member_not_found!(member_path)
    end
  end
end

#read_member(member_path, options = {}) ⇒ Object 



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# File 'lib/multi_zip/backend/rubyzip.rb', line 3

def read_member(member_path, options = {})
  read_operation do |zip_file|
    if member = zip_file.glob(member_path).first
      member.get_input_stream.read
    else
      zip_file.close
      member_not_found!(member_path)
    end
  end
end

#remove_member(member_path, options = {}) ⇒ Object 



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# File 'lib/multi_zip/backend/rubyzip.rb', line 50

def remove_member(member_path, options = {})
  archive_exists!
  exists!(member_path)
  Zip::File.open(@filename) do |zipfile|
    zipfile.remove(member_path)
  end
end

#write_member(member_path, member_contents, options = {}) ⇒ Object 



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# File 'lib/multi_zip/backend/rubyzip.rb', line 20

def write_member(member_path, member_contents, options = {})
  flags = (File.exists?(@filename) ? nil : Zip::File::CREATE)

  Zip::File.open(@filename, flags) do |zipfile|
    zipfile.get_output_stream(member_path) do |os|
      os.write member_contents
    end
  end
end