Support for file streaming instead of downloading to disk

[mikhailushka]

Hi!

We discovered that while uploading a video from the provided URL, the file is downloaded to disk, in the temporary directory.

This happening here:

yt/lib/yt/models/account.rb

Line 77 in 04662a7

file = URI.open(path_or_url)

This behavior interferes with the operation of pods in our cluster, which have a limit on ephemeral local storage usage.

To work around this limitation, we used the following draft patch, which allows streaming a file instead of downloading:

class Yt::Models::Account
  def upload_video(path_or_url, params = {})
    file = if path_or_url.to_s.start_with?('https://', 'http://')
      # fix here
      Down.open(path_or_url, rewindable: false)
    else
      File.open(path_or_url, 'r')
    end
    session = resumable_sessions.insert file.size, upload_body(params)

    session.update(body: file) do |data|
      Yt::Video.new(
        id: data['id'],
        snippet: data['snippet'],
        status: data['status'],
        auth: self
      )
    end
  ensure
    file.close if file.respond_to?(:close)
  end
end

Please, add a streaming support in gem