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Make DerivationGoal::drv a full Derivation

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This field used to be a `BasicDerivation`, but this `BasicDerivation`
was downcasted to a `Derivation` when needed (implicitely or not), so we
might as well make it a full `Derivation` and upcast it when needed.

This also allows getting rid of a weird duplication in the way we
compute the static output hashes for the derivation. We had to
do it differently and in a different place depending on whether the
derivation was a full derivation or just a basic drv, but we can now do
it unconditionally on the full derivation.

Fix #4559
This commit is contained in:
regnat 2021-02-23 14:12:11 +01:00
parent 35205e2e92
commit ba1a256d08
2 changed files with 14 additions and 25 deletions
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37
src/libstore/build/derivation-goal.cc
View file

@ -123,17 +123,7 @@ DerivationGoal::DerivationGoal(const StorePath & drvPath, const BasicDerivation
, wantedOutputs(wantedOutputs)
, buildMode(buildMode)
{
this->drv = std::make_unique<BasicDerivation>(BasicDerivation(drv));
auto outputHashes = staticOutputHashes(worker.store, drv);
for (auto &[outputName, outputHash] : outputHashes)
initialOutputs.insert({
outputName,
InitialOutput{
.wanted = true, // Will be refined later
.outputHash = outputHash
}
});
this->drv = std::make_unique<Derivation>(drv);
state = &DerivationGoal::haveDerivation;
name = fmt(
@ -271,18 +261,8 @@ void DerivationGoal::loadDerivation()
auto fullDrv = new Derivation(worker.store.derivationFromPath(drvPath));
auto outputHashes = staticOutputHashes(worker.store, *fullDrv);
for (auto &[outputName, outputHash] : outputHashes)
initialOutputs.insert({
outputName,
InitialOutput{
.wanted = true, // Will be refined later
.outputHash = outputHash
}
});
/* Get the derivation. */
drv = std::unique_ptr<BasicDerivation>(fullDrv);
drv = std::unique_ptr<Derivation>(fullDrv);
haveDerivation();
}
@ -301,6 +281,16 @@ void DerivationGoal::haveDerivation()
if (i.second.second)
worker.store.addTempRoot(*i.second.second);
auto outputHashes = staticOutputHashes(worker.store, *drv);
for (auto &[outputName, outputHash] : outputHashes)
initialOutputs.insert({
outputName,
InitialOutput{
.wanted = true, // Will be refined later
.outputHash = outputHash
}
});
/* Check what outputs paths are not already valid. */
checkPathValidity();
bool allValid = true;
@ -3517,10 +3507,9 @@ void DerivationGoal::registerOutputs()
but it's fine to do in all cases. */
if (settings.isExperimentalFeatureEnabled("ca-derivations")) {
auto outputHashes = staticOutputHashes(worker.store, *drv);
for (auto& [outputName, newInfo] : infos)
worker.store.registerDrvOutput(Realisation{
.id = DrvOutput{outputHashes.at(outputName), outputName},
.id = DrvOutput{initialOutputs.at(outputName).outputHash, outputName},
.outPath = newInfo.path});
}
}

2
src/libstore/build/derivation-goal.hh
View file

@ -64,7 +64,7 @@ struct DerivationGoal : public Goal
bool retrySubstitution;
/* The derivation stored at drvPath. */
std::unique_ptr<BasicDerivation> drv;
std::unique_ptr<Derivation> drv;
std::unique_ptr<ParsedDerivation> parsedDrv;