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StorePath: Rewrite in C++

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On nix-env -qa -f '<nixpkgs>', this reduces maximum RSS by 20970 KiB
and runtime by 0.8%. This is mostly because we're not parsing the hash
part as a hash anymore (just validating that it consists of base-32
characters).

Also, replace storePathToHash() by StorePath::hashPart().
This commit is contained in:
Eelco Dolstra 2020-06-16 14:16:39 +02:00
parent 72e17290d4
commit 759947bf72
21 changed files with 110 additions and 111 deletions
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6
src/libstore/binary-cache-store.cc
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@ -93,7 +93,7 @@ std::shared_ptr<std::string> BinaryCacheStore::getFile(const std::string & path)
std::string BinaryCacheStore::narInfoFileFor(const StorePath & storePath)
{
return storePathToHash(printStorePath(storePath)) + ".narinfo";
return std::string(storePath.hashPart()) + ".narinfo";
}
void BinaryCacheStore::writeNarInfo(ref<NarInfo> narInfo)
@ -102,7 +102,7 @@ void BinaryCacheStore::writeNarInfo(ref<NarInfo> narInfo)
upsertFile(narInfoFile, narInfo->to_string(*this), "text/x-nix-narinfo");
auto hashPart = storePathToHash(printStorePath(narInfo->path));
std::string hashPart(narInfo->path.hashPart());
{
auto state_(state.lock());
@ -164,7 +164,7 @@ void BinaryCacheStore::addToStore(const ValidPathInfo & info, Source & narSource
}
}
upsertFile(storePathToHash(printStorePath(info.path)) + ".ls", jsonOut.str(), "application/json");
upsertFile(std::string(info.path.to_string()) + ".ls", jsonOut.str(), "application/json");
}
/* Compress the NAR. */