mini_magick 5.4.0

on Ruby Gems

Added :inherit_fds option for handing open file descriptors to the IM command, so an input that's already an open IO can be passed as /dev/fd/N instead of being written out to a file first:

File.open("input.jpg", "rb") do |file|
  MiniMagick.identify(inherit_fds: [file]) do |identify|
    identify << "/dev/fd/#{file.fileno}"
  end
end

Thanks to @flavorjones for the contribution!