[Bug]: `create_derivatives` uploads files already in the store about shrine

[janko]

Yes, upload_derivatives will always upload the received files, even if they're already uploaded to a storage. This is by design, it allows you to re-upload files somewhere else if needed (or copy, in case of S3).

You probably want to use merge_derivatives or set_derivatives if you just want to assign already uploaded files. You can combine that with process_derivatives, since as you said create_derivatives calls upload_derivatives internally:

files = asset.file_attacher.process_derivatives(
  :from_coconut,
  video_versions:,
  video_thumbnail: video_thumbnail_url,
)

asset.file_attacher.set_derivatives(files)

[renchap]

Thanks, I did something similar.

I thought that if the existing storage was the same as the target they would not be duplicated, but I guess there are use-cases for re-uploading to the same storage.