diff options
Diffstat (limited to 'src/libstore/build')
| -rw-r--r-- | src/libstore/build/local-derivation-goal.cc | 27 |
1 files changed, 23 insertions, 4 deletions
diff --git a/src/libstore/build/local-derivation-goal.cc b/src/libstore/build/local-derivation-goal.cc index 9d869d513..65340d6ce 100644 --- a/src/libstore/build/local-derivation-goal.cc +++ b/src/libstore/build/local-derivation-goal.cc @@ -2319,11 +2319,30 @@ DrvOutputs LocalDerivationGoal::registerOutputs() buildUser ? std::optional(buildUser->getUIDRange()) : std::nullopt, inodesSeen); - debug("scanning for references for output '%s' in temp location '%s'", outputName, actualPath); + bool discardReferences = false; + if (auto structuredAttrs = parsedDrv->getStructuredAttrs()) { + if (auto outputChecks = get(*structuredAttrs, "outputChecks")) { + if (auto output = get(*outputChecks, outputName)) { + if (auto unsafeDiscardReferences = get(*output, "unsafeDiscardReferences")) { + settings.requireExperimentalFeature(Xp::DiscardReferences); + if (!unsafeDiscardReferences->is_boolean()) + throw Error("attribute 'outputChecks.\"%s\".unsafeDiscardReferences' of derivation '%s' must be a Boolean", outputName, drvPath.to_string()); + discardReferences = unsafeDiscardReferences->get<bool>(); + } + } + } + } - /* Pass blank Sink as we are not ready to hash data at this stage. */ - NullSink blank; - auto references = scanForReferences(blank, actualPath, referenceablePaths); + StorePathSet references; + if (discardReferences) + debug("discarding references of output '%s'", outputName); + else { + debug("scanning for references for output '%s' in temp location '%s'", outputName, actualPath); + + /* Pass blank Sink as we are not ready to hash data at this stage. */ + NullSink blank; + references = scanForReferences(blank, actualPath, referenceablePaths); + } outputReferencesIfUnregistered.insert_or_assign( outputName, |