this post was submitted on 29 May 2025
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Trying to recreate a version control system for my music collection, with one crucial difference ... 🤯 (feddit.org)
submitted 1 week ago* (last edited 1 week ago) by A_norny_mousse@feddit.org to c/linux@lemmy.ml
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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

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
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[–] DecentM@lemmy.ml 11 points 1 week ago (1 children)

Don't know of a solution that does this, but you could solve it with a two-step process. First, rsync the files to the server as-is, then use a background job on the server that converts lossless to lossy every hour or so.

Storage is really cheap these days though, why compress lossy in the first place?

[–] N0x0n@lemmy.ml 1 points 1 week ago

You can compress to lossy and still don't make the difference between each while saving a ton of storage. Opus 192k is really good and mostly transparent.

I do agree that storage is cheap however if you have to make backups, it really gets satured very fast !