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Class: Gem::PackageTask

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, Rake::PackageTask
Instance Chain:
self, Rake::PackageTask
Inherits: Rake::PackageTask
  • Object
Defined in: lib/rubygems/package_task.rb

Overview

Create a package based upon a Specification. ::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 Rake::PackageTask, a PackageTask will also generate the following tasks:

“package_dir/name-version.gem”

Create a RubyGems package with the given name and version.

Example using a Specification:

require 'rubygems'
require 'rubygems/package_task'

spec = Gem::Specification.new do |s|
  s.summary = "Ruby based make-like utility."
  s.name = 'rake'
  s.version = PKG_VERSION
  s.requirements << 'none'
  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

Gem::PackageTask.new(spec) do |pkg|
  pkg.need_zip = true
  pkg.need_tar = true
end

Class Method Summary

Instance Attribute Summary

Instance Method Summary

  • #define

    Create the Rake tasks and actions specified by this PackageTask.

  • #init(gem)

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

Constructor Details

.new(gem_spec) {|_self| ... } ⇒ PackageTask

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.

Yields:

  • (_self)

[ GitHub ] 

  


# File 'lib/rubygems/package_task.rb', line 73



def initialize(gem_spec)
  init gem_spec
  yield self if block_given?
  define if block_given?
end


  







Instance Attribute Details



  

    #gem_spec   (rw)
  



  

    

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


  



  [ GitHub ]


  

  


# File 'lib/rubygems/package_task.rb', line 66



attr_accessor :gem_spec


  







Instance Method Details



  

    #define  
  



  

    

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


  



  [ GitHub ]


  

  


# File 'lib/rubygems/package_task.rb', line 93



def define
  super

  gem_file = File.basename gem_spec.cache_file
  gem_path = File.join package_dir, gem_file
  gem_dir  = File.join package_dir, gem_spec.full_name

  task package: [:gem]

  directory package_dir
  directory gem_dir

  desc "Build the gem file #{gem_file}"
  task gem: [gem_path]

  trace = Rake.application.options.trace
  Gem.configuration.verbose = trace

  file gem_path => [package_dir, gem_dir] + @gem_spec.files do
    chdir(gem_dir) do
      when_writing "Creating #{gem_spec.file_name}" do
        Gem::Package.build gem_spec

        verbose trace do
          mv gem_file, ".."
        end
      end
    end
  end
end


  








  

    #init(gem)  
  



  

    

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


  



  [ GitHub ]


  

  


# File 'lib/rubygems/package_task.rb', line 82



def init(gem)
  super gem.full_name, :noversion
  @gem_spec = gem
  @package_files += gem_spec.files if gem_spec.files
  @fileutils_output = $stdout
end