Add release not for eval-system

This commit is contained in:
John Ericson 2023-12-14 19:53:59 -05:00
parent 70f50cbb2a
commit 228e995cde

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synopsis: Add new `eval-system` setting
prs: 4093
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Add a new `eval-system` option.
Unlike `system`, it just overrides the value of `builtins.currentSystem`.
This is more useful than overriding `system`, because you can build these derivations on remote builders which can work on the given system.
In contrast, `system` also effects scheduling which will cause Nix to build those derivations locally even if that doesn't make sense.
`eval-system` only takes effect if it is non-empty.
If empty (the default) `system` is used as before, so there is no breakage.