Contents

require 'rubygems' if RUBY_VERSION < '1.9'
require 'rake/tasklib'

module Rake

  # A task whick is no longer needed after its first invocation
  class OnceTask < Task

    attr_accessor :invoked
    attr_accessor :timestamp

    def self.define_task( *args, &block )
      task = super( *args, &block )
      task.timestamp = nil
      task.invoked = false
      task
    end

    def execute(*args)
      @timestamp = Time.now
      @invoked = true
      super(*args)
    end

    def needed?
      ! @invoked
    end

  end

end

def once_task(*args, &block)
  Rake::OnceTask.define_task(*args, &block)
end

Version data entries

6 entries across 6 versions & 1 rubygems

Version	Path
rake-builder-0.7.0	lib/rake/once_task.rb
rake-builder-0.0.19	lib/rake/once_task.rb
rake-builder-0.0.18	lib/rake/once_task.rb
rake-builder-0.0.17	lib/rake/once_task.rb
rake-builder-0.0.16	lib/rake/once_task.rb
rake-builder-0.0.15	lib/rake/once_task.rb