Due to how we pass in existing store paths via CLI arguments for the
diff and combine scripts, Nix didn't register a dependency on the store
paths properly. This meant that some of the derivations that were built,
didn't have the right store paths made available in the sandbox -
leading to all kinds of "not found" errors.
We worked around this in CI by resolving the symlinks to the nix store
beforehand. We tried to work around this locally by storing the nix
store path in BASELINE, but this didn't fully work. By explicitly
registering these store paths as dependencies, this should work across
the board - without any magic required by the caller.
Update the README.md to document what gets returned.
We might in the future split these up into other attrsets but I don't see a usecase for that at the moment.
This allows running a full comparison between two commits locally.
What was previously `eval.full` is now called `eval.all`. The new
`eval.full` takes a `baseline` argument for the comparison.
We had set a default of 5000 for local evaluation earlier for
`singleSystem`, it makes sense to also use that for `full`.
The README is also a bit outdated, because Nix 2.30 significantly
changed the memory requirements. Rewriting the README to also show the
ability to directly evaluate the current system only.
