Method: ActiveStorage::Service::MirrorService#mirror

Defined in:
activestorage/lib/active_storage/service/mirror_service.rb

#mirror(key, checksum:) ⇒ Object

Copy the file at the key from the primary service to each of the mirrors where it doesn’t already exist.



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# File 'activestorage/lib/active_storage/service/mirror_service.rb', line 66

def mirror(key, checksum:)
  instrument :mirror, key: key, checksum: checksum do
    if (mirrors_in_need_of_mirroring = mirrors.select { |service| !service.exist?(key) }).any?
      primary.open(key, checksum: checksum) do |io|
        mirrors_in_need_of_mirroring.each do |service|
          io.rewind
          service.upload key, io, checksum: checksum
        end
      end
    end
  end
end