#180 Exclude incompressible files (photos, mp3)

[Timur Born]

Hello. Thanks for this useful program! I currently use it to sync some documents and Lightroom library files, considered using it for encrypted backup of photos.

I would like to see an option to exclude certain files from compression, aka have 7Z only encrypt the files, because they would not be compressible anyway. This includes JPG, any kind of raw image file, compressed audio format like mp3 and aac and whatever other incompressible files come to mind. Offering to enter a list of file extensions should suffice, similar to the list of excluded (temp) files.

Regards,
Timur

[Flying Hawk]

I've modified the source code to turnoff compression for some already compressed file formats.
This "personal version" of mine is now published on GitHub. Installers can be downloaded on the releases page.

It addresses this issue, but also comes with some other personal tweaks that might not be what you want.

[Timur Born]

Thanks for the effort and sharing the version, it's well appreciated!

Any plans on implementing a manual option to include certain filetypes (per sync pair)? I'm especially looking at raw image files. These can be either compressed or uncompressed, so a hardcoded option would not work so well for them. Fast compression by default in your new version may already help there, though, I will have to test that.

[Flying Hawk]

I'm considering using an external text file to specify default compression level and extensions that should not be compressed globally. But I have no plan to add such settings per sync pair. That is more involved than what I'm comfortable doing right now.