Release 1.7.0 -- no longer use Fiber - reverts Fiber changes in release 1.6.0

[professor]

Fixes #96 and Fixes #98

Unless a Fiber is initialized with Fiber.new(storage: nil) then there is cross Fiber pollution of the RequestStore if the RequestStore is initialized or used in any parent Fiber.

Notes

1.6.0 added a method RequestStore.scope -- I was tempted to keep the method in 1.7.0 but decided to remove it for two reasons even though it is a breaking change.

• We want 1.7.0 to have the same functionality as 1.5.x
• Whenever we want to use Fiber in a 2.x.x, I suspect we will want a different API than RequestStore.scope

[smudge]

This revert would work for me & my team, thank you. 👍

My only thought would be to add a regression test, something like the one in #97. I can confirm that (on Ruby 3.2+) this fails for me on 1.6 and passes with the changes in this PR:

  def test_concurrent_stores
    Thread.new { RequestStore.store[:foo] = 'bar' }.join
    value = Thread.new { RequestStore.store[:foo] }.value

    assert value != 'bar', 'Thread 2 should not see the value set by Thread 1'
  end

[professor]

Thanks. I'm hoping to add a regression test as a separate PR.

[steveklabnik]

Thank you so much, both of you. <3

[steveklabnik]

https://rubygems.org/gems/request_store/versions/1.7.0