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Remove HashType::Unknown

Browse source 
Instead, `Hash` uses `std::optional<HashType>`. In the future, we may
also make `Hash` itself require a known hash type, encoraging people to
use `std::optional<Hash>` instead.
This commit is contained in:
John Ericson 2020-06-02 15:52:13 +00:00
parent 6dd471ebf6
commit 450dcf2c1b
14 changed files with 72 additions and 53 deletions
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6
src/libstore/build.cc
View file

@ -3726,8 +3726,8 @@ void DerivationGoal::registerOutputs()
/* Check the hash. In hash mode, move the path produced by
the derivation to its content-addressed location. */
Hash h2 = outputHashMode == FileIngestionMethod::Recursive
? hashPath(h.type, actualPath).first
: hashFile(h.type, actualPath);
? hashPath(*h.type, actualPath).first
: hashFile(*h.type, actualPath);
auto dest = worker.store.makeFixedOutputPath(outputHashMode, h2, i.second.path.name());
@ -4999,7 +4999,7 @@ bool Worker::pathContentsGood(const StorePath & path)
if (!pathExists(store.printStorePath(path)))
res = false;
else {
HashResult current = hashPath(info->narHash.type, store.printStorePath(path));
HashResult current = hashPath(*info->narHash.type, store.printStorePath(path));
Hash nullHash(HashType::SHA256);
res = info->narHash == nullHash || info->narHash == current.first;
}

2
src/libstore/builtins/fetchurl.cc
View file

@ -65,7 +65,7 @@ void builtinFetchurl(const BasicDerivation & drv, const std::string & netrcData)
if (!hasSuffix(hashedMirror, "/")) hashedMirror += '/';
auto ht = parseHashType(getAttr("outputHashAlgo"));
auto h = Hash(getAttr("outputHash"), ht);
fetch(hashedMirror + printHashType(h.type) + "/" + h.to_string(Base::Base16, false));
fetch(hashedMirror + printHashType(*h.type) + "/" + h.to_string(Base::Base16, false));
return;
} catch (Error & e) {
debug(e.what());

2
src/libstore/derivations.cc
View file

@ -20,8 +20,6 @@ void DerivationOutput::parseHashInfo(FileIngestionMethod & recursive, Hash & has
}
HashType hashType = parseHashType(algo);
if (hashType == HashType::Unknown)
throw Error("unknown hash algorithm '%s'", algo);
hash = Hash(this->hash, hashType);
}

2
src/libstore/export-import.cc
View file

@ -54,7 +54,7 @@ void Store::exportPath(const StorePath & path, Sink & sink)
filesystem corruption from spreading to other machines.
Don't complain if the stored hash is zero (unknown). */
Hash hash = hashAndWriteSink.currentHash();
if (hash != info->narHash && info->narHash != Hash(info->narHash.type))
if (hash != info->narHash && info->narHash != Hash(*info->narHash.type))
throw Error("hash of path '%s' has changed from '%s' to '%s'!",
printStorePath(path), info->narHash.to_string(), hash.to_string());

4
src/libstore/local-store.cc
View file

@ -1264,9 +1264,9 @@ bool LocalStore::verifyStore(bool checkContents, RepairFlag repair)
std::unique_ptr<AbstractHashSink> hashSink;
if (info->ca == "" || !info->references.count(info->path))
hashSink = std::make_unique<HashSink>(info->narHash.type);
hashSink = std::make_unique<HashSink>(*info->narHash.type);
else
hashSink = std::make_unique<HashModuloSink>(info->narHash.type, storePathToHash(printStorePath(info->path)));
hashSink = std::make_unique<HashModuloSink>(*info->narHash.type, storePathToHash(printStorePath(info->path)));
dumpPath(Store::toRealPath(i), *hashSink);
auto current = hashSink->finish();