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libstore/derivation-goal: Elaborate a TODO for performance concern

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Robert Hensing 2022-11-15 17:57:40 +01:00
parent 4bf70b74a7
commit bcd298d39b
1 changed files with 2 additions and 1 deletions
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3
src/libstore/build/derivation-goal.cc
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@ -538,7 +538,8 @@ void DerivationGoal::inputsRealised()
However, the impure derivations feature still relies on this However, the impure derivations feature still relies on this
fragile way of doing things, because its builds do not have fragile way of doing things, because its builds do not have
a representation in the store, which is a usability problem a representation in the store, which is a usability problem
in itself */ in itself. When implementing this logic entirely with lookups
make sure that they're cached. */
if (auto outPath = get(inputDrvOutputs, { depDrvPath, j })) { if (auto outPath = get(inputDrvOutputs, { depDrvPath, j })) {
worker.store.computeFSClosure(*outPath, inputPaths); worker.store.computeFSClosure(*outPath, inputPaths);
} }