lib.warn: Add NIX_ABORT_ON_WARN for call traces#140763
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roberth merged 1 commit intoNixOS:masterfrom Oct 13, 2021
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It doesn't behave exactly like builtins.trace, because this function requires a string, whereas builtins.trace works with arbitrary things to trace.
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I've clarified it, but left out the color, because we may want to change that to match Nix, which is switching to purple last time I checked.
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I think this is a great idea to implement something like this, I'd have liked this a couple times before
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Sounds good to merge after a squash |
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Motivation for this change
Finding the cause of a warning isn't always easy.
Printing a stack trace on every
builtins.traceisn't feasible in Nix itself, so this is the next best thing, even if you can only find the first warning.Things done
sandbox = trueset innix.conf? (See Nix manual)nix-shell -p nixpkgs-review --run "nixpkgs-review wip"./result/bin/)