Rake tasks define methods on main

[fsateler]

Steps to reproduce

Open rails console (with pry):

> Rails.application.load_tasks
> show-source each_tenant

From: /home/felipe/src/satelabs/buk/gems/ruby/2.5.0/bundler/gems/apartment-9665917fde57/lib/tasks/apartment.rake @ line 122:
Owner: Object
Visibility: private
Number of lines: 5

def each_tenant(&block)
  Parallel.each(tenants, in_threads: Apartment.parallel_migration_threads) do |tenant|
    block.call(tenant)
  end
end

Expected behavior

The global main namespace should not be polluted.

Actual behavior

The global main namespace is polluted.

System configuration

• Apartment version: git

Solution

I think those methods should be extracted to a module, so that they don't pollute the global namespace.