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check the store for input before failing (hopefully fix #6700)

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Taeer Bar-Yam 2022-12-05 11:27:47 -05:00
parent 14c3d76048
commit e4f9f3bf24
1 changed files with 8 additions and 0 deletions
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8
src/libstore/build/derivation-goal.cc
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@ -501,6 +501,14 @@ void DerivationGoal::inputsRealised()
now-known results of dependencies. If so, we become a
stub goal aliasing that resolved derivation goal. */
std::optional attempt = fullDrv.tryResolve(worker.store, inputDrvOutputs);
if (!attempt) {
/* TODO (impure derivations-induced tech debt) (see below):
The above attempt should have found it, but because we manage
inputDrvOutputs statefully, sometimes it gets out of sync with
the real source of truth (store). So we query the store
directly if there's a problem. */
attempt = fullDrv.tryResolve(worker.store);
}
assert(attempt);
Derivation drvResolved { *std::move(attempt) };