class Rake::GemPackageTask

Create a package based upon a Gem spec. Gem packages, as well as zip files and tar/gzipped packages can be produced by this task.

In addition to the Rake targets generated by PackageTask, a GemPackageTask will also generate the following tasks:

“package_dir/name-version.gem”: Create a Ruby GEM package with the given name and version.

Example using a Ruby GEM spec:

require 'rubygems'

spec = Gem::Specification.new do |s|
  s.platform = Gem::Platform::RUBY
  s.summary = "Ruby based make-like utility."
  s.name = 'rake'
  s.version = PKG_VERSION
  s.requirements << 'none'
  s.require_path = 'lib'
  s.autorequire = 'rake'
  s.files = PKG_FILES
  s.description = <<EOF
Rake is a Make-like program implemented in Ruby. Tasks
and dependencies are specified in standard Ruby syntax. 
EOF
end

Rake::GemPackageTask.new(spec) do |pkg|
  pkg.need_zip = true
  pkg.need_tar = true
end

Attributes

gem_spec[RW]

Ruby GEM spec containing the metadata for this package. The name, version and package_files are automatically determined from the GEM spec and don't need to be explicitly provided.

Public Class Methods

new(gem_spec) { |self| ... } click to toggle source

Create a GEM Package task library. Automatically define the gem if a block is given. If no block is supplied, then define needs to be called to define the task.

# File lib/rake/gempackagetask.rb, line 56
def initialize(gem_spec)
  init(gem_spec)
  yield self if block_given?
  define if block_given?
end

Public Instance Methods

define() click to toggle source

Create the Rake tasks and actions specified by this GemPackageTask. (define is automatically called if a block is given to new).

Calls superclass method

# File lib/rake/gempackagetask.rb, line 73
def define
  super
  task :package => [:gem]
  desc "Build the gem file #{gem_file}"
  task :gem => ["#{package_dir}/#{gem_file}"]
  file "#{package_dir}/#{gem_file}" => [package_dir] + @gem_spec.files do
    when_writing("Creating GEM") {
      Gem::Builder.new(gem_spec).build
      verbose(true) {
        mv gem_file, "#{package_dir}/#{gem_file}"
      }
    }
  end
end

gem_file() click to toggle source

# File lib/rake/gempackagetask.rb, line 88
def gem_file
  if @gem_spec.platform == Gem::Platform::RUBY
    "#{package_name}.gem"
  else
    "#{package_name}-#{@gem_spec.platform}.gem"
  end
end

init(gem) click to toggle source

Initialization tasks without the “yield self” or define operations.

Calls superclass method

# File lib/rake/gempackagetask.rb, line 64
def init(gem)
  super(gem.name, gem.version)
  @gem_spec = gem
  @package_files += gem_spec.files if gem_spec.files
end