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Make the Nar hash non modulo

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It makes much more sense to have the Nar hash be a plain straight hash
rather than a hash modulo
This commit is contained in:
regnat 2021-05-25 10:29:10 +02:00
parent af4ff644d5
commit 79ae9e4558
2 changed files with 23 additions and 25 deletions
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10
src/libstore/local-store.cc
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@ -1152,17 +1152,13 @@ void LocalStore::addToStore(const ValidPathInfo & info, Source & source,
/* While restoring the path from the NAR, compute the hash
of the NAR. */
std::unique_ptr<AbstractHashSink> hashSink;
if (!info.ca.has_value() || !info.references.count(info.path))
hashSink = std::make_unique<HashSink>(htSHA256);
else
hashSink = std::make_unique<HashModuloSink>(htSHA256, std::string(info.path.hashPart()));
HashSink hashSink(htSHA256);
TeeSource wrapperSource { source, *hashSink };
TeeSource wrapperSource { source, hashSink };
restorePath(realPath, wrapperSource);
auto hashResult = hashSink->finish();
auto hashResult = hashSink.finish();
if (hashResult.first != info.narHash)
throw Error("hash mismatch importing path '%s';\n specified: %s\n got: %s",