Using job metadata like 'at' in as lock_args

[braindeaf]

I'm trying to find a way to utilise additional metadata so that it is stored in the lock digest. I will say in advance that the 'at' in a job is not guaranteed and that's my own problem but in an ideal world it would be available or some other part of the job payload.

So I call something like

SomeJob.perform_at(10.minutes_from_now, :blah)

As far as I can see lock_args will only filter based on the job 'args' whereas I would like to use 'at' or indeed any other job meta data. Is that something that could be considered appropriate? At the moment I'm using this hack, which solves the problem but is pretty inflexible and enforces this for every job that uses uniqueness. I'd prefer to push the control of this to the worker class

module SidekiqUniqueJobs
  class LockArgs
    def self.call(item)
      [*new(item).lock_args, *(item['at'] || item['scheduled_at'])]
    end
  end
end

Would it be appropriate to add something like LockMeta between add_lock_args and add_lock_digest which would allow for this.

Any thoughts? and many thanks

RobL