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Reduce variants for derivation hash modulo

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This changes was taken from dynamic derivation (#4628). It` somewhat
undoes the refactors I first did for floating CA derivations, as the
benefit of hindsight + requirements of dynamic derivations made me
reconsider some things.

They aren't to consequential, but I figured they might be good to land
first, before the more profound changes @thufschmitt has in the works.
This commit is contained in:
John Ericson 2021-10-01 18:05:53 +00:00
parent aee56e0f89
commit 0948b8e94d
5 changed files with 131 additions and 72 deletions
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4
src/libstore/local-store.cc
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@ -701,8 +701,8 @@ void LocalStore::checkDerivationOutputs(const StorePath & drvPath, const Derivat
[&](const DerivationOutputInputAddressed & doia) {
if (!h) {
// somewhat expensive so we do lazily
auto temp = hashDerivationModulo(*this, drv, true);
h = std::get<Hash>(temp);
auto h0 = hashDerivationModulo(*this, drv, true);
h = h0.requireNoFixedNonDeferred();
}
StorePath recomputed = makeOutputPath(i.first, *h, drvName);
if (doia.path != recomputed)