I want to have a mirror of my local music collection on my server, and a script that periodically updates the server to, well, mirror my local collection.

But crucially, I want to convert all lossless files to lossy, preferably before uploading them.

That’s the one reason why I can’t just use git - or so I believe.

I also want locally deleted files to be deleted on the server.

Sometimes I even move files around (I believe in directory structure) and again, git deals with this perfectly. If it weren’t for the lossless-to-lossy caveat.

It would be perfect if my script could recognize that just like git does, instead of deleting and reuploading the same file to a different location.

My head is spinning round and round and before I continue messing around with find and scp it’s time to ask the community.

I am writing in bash but if some python module could help with it I’m sure I could find my way around it.

TIA

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additional info:

• Not all files in the local collection are lossless. A variety of formats.
• The purpose of the remote is for listening/streaming with various applications
• The lossy version is for both reducing upload and download (streaming) bandwidth. On mobile broadband FLAC tends to buffer a lot.
• The home of the collection (and its origin) is my local machine.
• The local machine cannot act as a server