parent.rake

namespace :parent do
  namespace :child do
    task :grandson => :environment
    task :granddaughter => :environment
    task :other_task_name do
      puts 'this should be executed by rake parent:child'
    end
  end
  task :child do
    puts 'or is this the only way to do it?'
  end
  task :default_task_for_parent
    puts 'i\'d also like to be able to do this from rake parent'
  end
end
task :parent do
  puts 'or is this the only way?'
end