Uploading to cachix is slow, it seems to reupload stuff even when not needed

[arximboldi]

Uploading to cachix is slow, it seems to reupload stuff even when not needed

[arximboldi]

For some reason, it is always these 3 derivations that get pushed... I have looked into them, and those are some large derivations containing some data-files that are downloaded with fetchzip. Our project contains other similar derivations that are correctly cached, downloaded from cachix in subsequent builds, and not re-pushed every single time. Maybe it is a temporary glitch and this will fix itself after a few runs.

Interestingly, these derivations could maybe be directly ignored. It seems however, looking into issues around exclusion rules in the cachix repo, that this is not an easy thing to do...?

[domenkozar]

I'd suggest making -source derivations smaller in the first place. Everytime you evaluate your project, it will copy that many gigabytes into your nix store, duplicating all data.

[arximboldi]

Not sure if that is possible. However, it seems the issue has gotten better over time. Sorry for the noise.