class Rake::PackageTask


end
p.package_files.include(“lib/*/.rb”)
p.need_tar = true
Rake::PackageTask.new(“rake”, “1.2.3”) do |p|
Example:
Create a zip package archive (if need_zip is true).
[“package_dir/name-version.zip”]

Create a bzip2’d tar package (if need_tar_bz2 is true).
[“package_dir/name-version.tar.bz2”]

Create a gzipped tar package (if need_tar_gz is true).
[“package_dir/name-version.tar.gz”]

Create a gzipped tar package (if need_tar is true).
[“package_dir/name-version.tgz”]

of date.
Rebuild the package files from scratch, even if they are not out
[:repackage]

added to the main clobber target.
Delete all the package files. This target is automatically
[:clobber_package]

Create all the requested package files.
[:package]

The PackageTask will create the following targets:
distributable files (e.g zip archive or tar files).
Create a packaging task that will package the project into

def define

Create the tasks defined by this task library. 
def define
  fail "Version required (or :noversion)" if @version.nil?
  @version = nil if :noversion == @version
  desc "Build all the packages"
  task :package
  desc "Force a rebuild of the package files"
  task :repackage => [:clobber_package, :package]
  desc "Remove package products"
  task :clobber_package do
    rm_r package_dir rescue nil
  end
  task :clobber => [:clobber_package]
  [
    [need_tar, tgz_file, "z"],
    [need_tar_gz, tar_gz_file, "z"],
    [need_tar_bz2, tar_bz2_file, "j"]
  ].each do |(need, file, flag)|
    if need
      task :package => ["#{package_dir}/#{file}"]
      file "#{package_dir}/#{file}" => [package_dir_path] + package_files do
        chdir(package_dir) do
          sh %{#{@tar_command} #{flag}cvf #{file} #{package_name}}
        end
      end
    end
  end
  if need_zip
    task :package => ["#{package_dir}/#{zip_file}"]
    file "#{package_dir}/#{zip_file}" => [package_dir_path] + package_files do
      chdir(package_dir) do
        sh %{#{@zip_command} -r #{zip_file} #{package_name}}
      end
    end
  end
  directory package_dir
  file package_dir_path => @package_files do
    mkdir_p package_dir rescue nil
    @package_files.each do |fn|
      f = File.join(package_dir_path, fn)
      fdir = File.dirname(f)
      mkdir_p(fdir) if !File.exist?(fdir)
      if File.directory?(fn)
        mkdir_p(f)
      else
        rm_f f
        safe_ln(fn, f)
      end
    end
  end
  self
end

def init(name, version)

Initialization that bypasses the "yield self" and "define" step. 
def init(name, version)
  @name = name
  @version = version
  @package_files = Rake::FileList.new
  @package_dir = 'pkg'
  @need_tar = false
  @need_tar_gz = false
  @need_tar_bz2 = false
  @need_zip = false
  @tar_command = 'tar'
  @zip_command = 'zip'
end

def initialize(name=nil, version=nil) 

def initialize(name=nil, version=nil)
  init(name, version)
  yield self if block_given?
  define unless name.nil?
end

def package_dir_path 

def package_dir_path
  "#{package_dir}/#{package_name}"
end

def package_name 

def package_name
  @version ? "#{@name}-#{@version}" : @name
end

def tar_bz2_file 

def tar_bz2_file
  "#{package_name}.tar.bz2"
end

def tar_gz_file 

def tar_gz_file
  "#{package_name}.tar.gz"
end

def tgz_file 

def tgz_file
  "#{package_name}.tgz"
end

def zip_file 

def zip_file
  "#{package_name}.zip"
end