[DataMapper] DM 10.2 breaks RightAWS S3 streaming

[Gary Yngve]

DM 10.2 does:

module Enumerable
  ...
  def size
    size = 0
    each { size += 1 }
    size
  end
end


RightAWS S3 put streaming does:

      if (data.respond_to?(:lstat) && data.lstat.size >=
USE_100_CONTINUE_PUT_SIZE) ||
         (data.respond_to?(:size)  && data.size       >=
USE_100_CONTINUE_PUT_SIZE)
        headers['expect'] = '100-continue'
      end


Note that data is often File.open('...')  (an IO object),

and then .size will actually read from the file.

I'm not sure how deep the Enum size thing is in DM 10.2 (I bet it's
pretty involved to remove it),
so I'm patching up RightAWS with the following:

      if (data.respond_to?(:lstat) && data.lstat.size >=
USE_100_CONTINUE_PUT_SIZE) ||
         (!data.respond_to?(:lstat) && data.respond_to?(:size)  &&
data.size >= USE_100_CONTINUE_PUT_SIZE)
        headers['expect'] = '100-continue'
      end

-Gary

(who seems to be the king of weird bugs lately)

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