How I might try changing a Sidekiq queue in a rake task

sidekiq.rb

# This obviously isn't thread safe, but I bet that doesn't matter a monkeys
# if you're running it in a rake task.
#
# Also, I don't use Sidekiq, so I might have misunderstood how to use the API
# in a fundamental manner which could mean that what follows is useless...

def with_queue(job_class, queue_name, &block)
  default_queue = job_class.get_sidekick_options.fetch(:queue)
  job_class.sidekick_options(queue: queue_name)
  yield
ensure
  job_class.sidekick_options(queue: default_queue)
end

task :foo do
  with_queue(MyWorker, 'the-queue') do
    MyWorker.perform(...)
  end
end