commit 19086768fe376d149616d608096053c34472e839 · pyrox.dev/nixpkgs

pyrox.dev / nixpkgs

lol

lib.derivations: avoid common double-warn with warnOnInstantiate

Before:

$ nix-build . -A opensycl
trace: evaluation warning: 'opensycl' has been renamed to 'adaptivecpp'
trace: evaluation warning: 'opensycl' has been renamed to 'adaptivecpp'
/nix/store/8g0lfv82s0sprmqgfj146ggkb7bn3rm6-adaptivecpp-25.02.0

$ nix-instantiate . -A opensycl
trace: evaluation warning: 'opensycl' has been renamed to 'adaptivecpp'
trace: evaluation warning: 'opensycl' has been renamed to 'adaptivecpp'
warning: you did not specify '--add-root'; the result might be removed by the garbage collector
/nix/store/b8q5xp94s4n7zfn7as5a9xjvylh6y3pi-adaptivecpp-25.02.0.drv

After:

$ nix-build . -A opensycl
trace: evaluation warning: 'opensycl' has been renamed to 'adaptivecpp'
/nix/store/8g0lfv82s0sprmqgfj146ggkb7bn3rm6-adaptivecpp-25.02.0

$ nix-instantiate . -A opensycl
trace: evaluation warning: 'opensycl' has been renamed to 'adaptivecpp'
warning: you did not specify '--add-root'; the result might be removed by the garbage collector
/nix/store/b8q5xp94s4n7zfn7as5a9xjvylh6y3pi-adaptivecpp-25.02.0.drv

Peder Bergebakken Sundt 6 months ago 19086768 d308aa97

options

unified split

Changed files

+4 -2

lib

derivations.nix

+4 -2

lib/derivations.nix

···

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         /**

     

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           Wrap a derivation such that instantiating it produces a warning.

     

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       -
           All attributes apart from `meta`, `name`, and `type` (which are used by

     

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           `nix search`) will be wrapped in `lib.warn`.

     

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       +
           All attributes will be wrapped with `lib.warn` except from `.meta`, `.name`,

     

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           and `.type` which are used by `nix search`, and `.outputName` which avoids

     

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           double warnings with `nix-instantiate` and `nix-build`.

     

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           # Inputs

     

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···

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               "meta"

     

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               "name"

     

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               "type"

     

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       +
               "outputName"

     

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             ];

     

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           in

     

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           drv // mapAttrs (_: lib.warn msg) drvToWrap;