Configure workers run by rake sneakers:run

[l-schirrmeister]

Adds the possibility to configure the workers, run by rake sneakers:run through Sneakers.rake_worker_classes

It will use still the workers from ENV[WORKERS]
But you can delete that and instead set Sneakers.rake_worker_classes = [Class1, Class2, ...] or set something that responds to :call.
If nothing is set, still Sneakers::Classes are used.

We have the situation that we would like to set the classes run by the task directly from within our project through a setting and not use an ENV for it, since that must be known from outside of it.
On the other hand, we use a base class for our workers so that the default strategy with Sneakers::Classes is not working for us as well.

[sharshenov]

Hey @l-schirrmeister,

Have you tried passing a proc to a Sneakers::Runner?

require 'sneakers/runner'

workers_proc = -> { [Foo, Bar, Baz] }

r = Sneakers::Runner.new(workers_proc)
r.run

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