# File lib/rubygems/package.rb, line 50
50:   def self.open(io, mode = "r", signer = nil, &block)
51:     tar_type = case mode
52:                when 'r' then TarInput
53:                when 'w' then TarOutput
54:                else
55:                  raise "Unknown Package open mode"
56:                end
57: 
58:     tar_type.open(io, signer, &block)
59:   end

    # File lib/rubygems/package.rb, line 61
61:   def self.pack(src, destname, signer = nil)
62:     TarOutput.open(destname, signer) do |outp|
63:       dir_class.chdir(src) do
64:         outp.metadata = (file_class.read("RPA/metadata") rescue nil)
65:         find_class.find('.') do |entry|
66:           case
67:           when file_class.file?(entry)
68:             entry.sub!(%r{\./}, "")
69:             next if entry =~ /\ARPA\//
70:             stat = File.stat(entry)
71:             outp.add_file_simple(entry, stat.mode, stat.size) do |os|
72:               file_class.open(entry, "rb") do |f|
73:                 os.write(f.read(4096)) until f.eof?
74:               end
75:             end
76:           when file_class.dir?(entry)
77:             entry.sub!(%r{\./}, "")
78:             next if entry == "RPA"
79:             outp.mkdir(entry, file_class.stat(entry).mode)
80:           else
81:             raise "Don't know how to pack this yet!"
82:           end
83:         end
84:       end
85:     end
86:   end