From: Robert Klemme <bob.news@...>
Date: 2004-09-07T04:45:11+09:00
Subject: Re: ruby archiver


"Martin DeMello" <martindemello@yahoo.com> schrieb im Newsbeitrag 
news:uP2%c.315284$M95.37367@pd7tw1no...
> Is there any pure-ruby way to pack multiple files into a single file,
> and unpack them later? Compression is optional.

Dunno, but you could easily create one using Marshal. Experimental (works 
only for text files and files that fit completely into memory):


def archive(archive, *files)
  File.open(archive, "wb") do |io|
    files.each do |file|
      Marshal.dump(file, io)
      Marshal.dump(File.read(file), io)
    end
  end
end

def unarchive(archive)
  names = []
  begin
    File.open(archive, "rb") do |io|
      file = Marshal.load( io )
      File.open(file, "w") {|out| out.write( Marshal.load( io ) ) }
      names << file
    end
  rescue EOFError
    # ok, no more objects
  end
  names
end


archive( "test.rarc", "Rg.rb" )
File.rename "Rg.rb", "Rg-old.rb"
p unarchive( "test.rarc" )


    robert