# File lib/rubygems/package.rb, line 60
60:   def self.open(io, mode = "r", signer = nil, &block)
61:     tar_type = case mode
62:                when 'r' then TarInput
63:                when 'w' then TarOutput
64:                else
65:                  raise "Unknown Package open mode"
66:                end
67: 
68:     tar_type.open(io, signer, &block)
69:   end

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