Investigate file upload tools

[awead]

Sufia and Hyrax still use CarrierWave for the backend and a jQuery file upload plugin for the UI. Do we still want to use that combination? We should explore what other options exist.

[carolyncole]

Options for investigation

• [x] carrierwave
• [x] shrine
• [x] remotipart

There are a few other gems in ruby toolbox, but they do not have recent releases

[carolyncole]

There could also be some javascript options to look at based on the java script framework chosen

[carolyncole]

Remotipart only has documentation for Rails 3. Going to skip it.

Shrine documentation suggests it is similar to

• [x] Dragonfly
• [ ] Refile

[awead]

Uploading folders, and retaining their structure, would be a nice bonus. @ntallman will provide further details if nested folders should be nested works or not.

[carolyncole]

	No AR	processing chain	restartable upload integration	File Folder Structure	html5 ui	code
Shrine	yes	yes	tus (https://twin.github.io/resumable-file-uploads-in-ruby/)	yes (slightly harder to configure than the rest)	yes	https://github.com/psu-libraries/cho/compare/master...i%23364_shrine
CarrierWave	yes	yes	no built in integration	yes	yes	https://github.com/psu-libraries/cho/compare/master...i%23364
dragonfly	yes	yes	no built in integration	yes	yes	https://github.com/psu-libraries/cho/compare/master...i%23364_dragonfly

[ntallman]

At this point, nested folders don't have to equate to nested works. Might be a good future enhancement for batch uploads, but not necessary right now.

[ntallman]

I really like that tus (via Shrine) has built-in checksums to mitigate dropped bits on transfer. +1!

[carolyncole]

We have chosen shrine becuase of its extensibility and the example integration with TUS.