diff options
Diffstat (limited to 'src/libstore/store-api.cc')
| -rw-r--r-- | src/libstore/store-api.cc | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/src/libstore/store-api.cc b/src/libstore/store-api.cc index 60e87918a..8fc3ed46a 100644 --- a/src/libstore/store-api.cc +++ b/src/libstore/store-api.cc @@ -507,6 +507,54 @@ StorePathSet Store::queryDerivationOutputs(const StorePath & path) return outputPaths; } + +void Store::querySubstitutablePathInfos(const StorePathCAMap & paths, SubstitutablePathInfos & infos) +{ + if (!settings.useSubstitutes) return; + for (auto & sub : getDefaultSubstituters()) { + for (auto & path : paths) { + if (infos.count(path.first)) + // Choose first succeeding substituter. + continue; + + auto subPath(path.first); + + // Recompute store path so that we can use a different store root. + if (path.second) { + subPath = makeFixedOutputPathFromCA(path.first.name(), *path.second); + if (sub->storeDir == storeDir) + assert(subPath == path.first); + if (subPath != path.first) + debug("replaced path '%s' with '%s' for substituter '%s'", printStorePath(path.first), sub->printStorePath(subPath), sub->getUri()); + } else if (sub->storeDir != storeDir) continue; + + debug("checking substituter '%s' for path '%s'", sub->getUri(), sub->printStorePath(subPath)); + try { + auto info = sub->queryPathInfo(subPath); + + if (sub->storeDir != storeDir && !(info->isContentAddressed(*sub) && info->references.empty())) + continue; + + auto narInfo = std::dynamic_pointer_cast<const NarInfo>( + std::shared_ptr<const ValidPathInfo>(info)); + infos.insert_or_assign(path.first, SubstitutablePathInfo{ + info->deriver, + info->references, + narInfo ? narInfo->fileSize : 0, + info->narSize}); + } catch (InvalidPath &) { + } catch (SubstituterDisabled &) { + } catch (Error & e) { + if (settings.tryFallback) + logError(e.info()); + else + throw; + } + } + } +} + + bool Store::isValidPath(const StorePath & storePath) { { |