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Document "Import From Derivation" (#7332)

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* document "Import From Derivation"

Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
Co-authored-by: John Ericson <git@JohnEricson.me>
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Valentin Gagarin 2023-09-26 03:49:03 +02:00 • committed by GitHub
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11
src/libexpr/eval-settings.hh
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@ -47,11 +47,12 @@ struct EvalSettings : Config
Setting<bool> enableImportFromDerivation{
this, true, "allow-import-from-derivation",
R"(
By default, Nix allows you to `import` from a derivation, allowing
building at evaluation time. With this option set to false, Nix will
throw an error when evaluating an expression that uses this feature,
allowing users to ensure their evaluation will not require any
builds to take place.
By default, Nix allows [Import from Derivation](@docroot@/language/import-from-derivation.md).
With this option set to `false`, Nix will throw an error when evaluating an expression that uses this feature,
even when the required store object is readily available.
This ensures that evaluation will not require any builds to take place,
regardless of the state of the store.
)"};
Setting<Strings> allowedUris{this, {}, "allowed-uris",