Merge pull request #6993 from matthewbauer/dont-read-derivation-in-goal
Don’t readDerivation if impure derivations feature is disabled
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df5159e7d3
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@ -344,7 +344,7 @@ void DerivationGoal::gaveUpOnSubstitution()
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for (auto & i : dynamic_cast<Derivation *>(drv.get())->inputDrvs) {
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/* Ensure that pure, non-fixed-output derivations don't
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depend on impure derivations. */
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if (drv->type().isPure() && !drv->type().isFixed()) {
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if (settings.isExperimentalFeatureEnabled(Xp::ImpureDerivations) && drv->type().isPure() && !drv->type().isFixed()) {
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auto inputDrv = worker.evalStore.readDerivation(i.first);
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if (!inputDrv.type().isPure())
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throw Error("pure derivation '%s' depends on impure derivation '%s'",
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