Dunno how close this plugin gets you:
But if you want to suggest to Adobe, here may be a better place:
thanks for the reply; I do have that plug-in but found it so difficult to work out how to use it .
It also wouldn't recognise all of the folders within my folder structure.
Hmm - never used it, so dunno what to say. - did you seek help, e.g. via Jeffrey's blog, or direct from Jeffrey?
Worth noting: Lr catalog is hard-locked when Lr has it open, so no plugin (or app, or background service..) will be able to backup/upload active catalog.
I contacted Jeffrey through his on-line help form quite a while back but never heard anything.
I've now backed up all of my Lightroom files to Google Drive, so at least they're safe.
Interesting to find out that the Lightroom catalogue is 'locked'; that kind of makes the idea of a plug-in to do automatic backing up a bit pointless?