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unsafeDiscardReferences

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Adds a new boolean structured attribute
`outputChecks.<output>.unsafeDiscardReferences` which disables scanning
an output for runtime references.

    __structuredAttrs = true;
    outputChecks.out.unsafeDiscardReferences = true;

This is useful when creating filesystem images containing their own embedded Nix
store: they are self-contained blobs of data with no runtime dependencies.

Setting this attribute requires the experimental feature
`discard-references` to be enabled.
This commit is contained in:
Naïm Favier 2022-09-23 23:30:29 +02:00
parent 15341334b5
commit 15f7fa59be
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7 changed files with 58 additions and 7 deletions
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src/libutil/experimental-features.hh
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@ -25,6 +25,7 @@ enum struct ExperimentalFeature
ReplFlake,
AutoAllocateUids,
Cgroups,
DiscardReferences,
};
/**