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Merge branch 'no-stringly-typed-derivation-output' of github.com:Ericson2314/nix into validPathInfo-ca-proper-datatype

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This commit is contained in:
Carlo Nucera 2020-06-01 17:12:50 -04:00
commit f4b89e11a4
15 changed files with 194 additions and 94 deletions
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99
src/libstore/derivations.cc
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@ -8,22 +8,8 @@
namespace nix {
void DerivationOutput::parseHashInfo(FileIngestionMethod & recursive, Hash & hash) const
{
recursive = FileIngestionMethod::Flat;
string algo = hashAlgo;
if (string(algo, 0, 2) == "r:") {
recursive = FileIngestionMethod::Recursive;
algo = string(algo, 2);
}
HashType hashType = parseHashType(algo);
if (hashType == HashType::Unknown)
throw Error("unknown hash algorithm '%s'", algo);
hash = Hash(this->hash, hashType);
std::string FileSystemHash::printMethodAlgo() const {
return makeFileIngestionPrefix(method) + printHashType(hash.type);
}
@ -35,7 +21,7 @@ BasicDerivation::BasicDerivation(const BasicDerivation & other)
{
for (auto & i : other.outputs)
outputs.insert_or_assign(i.first,
DerivationOutput(i.second.path.clone(), std::string(i.second.hashAlgo), std::string(i.second.hash)));
DerivationOutput(i.second.path.clone(), std::optional<FileSystemHash>(i.second.hash)));
for (auto & i : other.inputSrcs)
inputSrcs.insert(i.clone());
}
@ -142,6 +128,33 @@ static StringSet parseStrings(std::istream & str, bool arePaths)
}
static DerivationOutput parseDerivationOutput(const Store & store, istringstream_nocopy & str)
{
expect(str, ","); auto path = store.parseStorePath(parsePath(str));
expect(str, ","); auto hashAlgo = parseString(str);
expect(str, ","); const auto hash = parseString(str);
expect(str, ")");
auto method = FileIngestionMethod::Flat;
std::optional<FileSystemHash> fsh;
if (hashAlgo != "") {
if (string(hashAlgo, 0, 2) == "r:") {
method = FileIngestionMethod::Recursive;
hashAlgo = string(hashAlgo, 2);
}
const HashType hashType = parseHashType(hashAlgo);
if (hashType == HashType::Unknown)
throw Error("unknown hash hashAlgorithm '%s'", hashAlgo);
fsh = FileSystemHash {
std::move(method),
Hash(hash, hashType),
};
}
return DerivationOutput(std::move(path), std::move(fsh));
}
static Derivation parseDerivation(const Store & store, const string & s)
{
Derivation drv;
@ -151,11 +164,7 @@ static Derivation parseDerivation(const Store & store, const string & s)
/* Parse the list of outputs. */
while (!endOfList(str)) {
expect(str, "("); std::string id = parseString(str);
expect(str, ","); auto path = store.parseStorePath(parsePath(str));
expect(str, ","); auto hashAlgo = parseString(str);
expect(str, ","); auto hash = parseString(str);
expect(str, ")");
drv.outputs.emplace(id, DerivationOutput(std::move(path), std::move(hashAlgo), std::move(hash)));
drv.outputs.emplace(id, parseDerivationOutput(store, str));
}
/* Parse the list of input derivations. */
@ -275,8 +284,9 @@ string Derivation::unparse(const Store & store, bool maskOutputs,
if (first) first = false; else s += ',';
s += '('; printUnquotedString(s, i.first);
s += ','; printUnquotedString(s, maskOutputs ? "" : store.printStorePath(i.second.path));
s += ','; printUnquotedString(s, i.second.hashAlgo);
s += ','; printUnquotedString(s, i.second.hash);
s += ','; printUnquotedString(s, i.second.hash ? i.second.hash->printMethodAlgo() : "");
s += ','; printUnquotedString(s,
i.second.hash ? i.second.hash->hash.to_string(Base::Base16, false) : "");
s += ')';
}
@ -332,7 +342,7 @@ bool BasicDerivation::isFixedOutput() const
{
return outputs.size() == 1 &&
outputs.begin()->first == "out" &&
outputs.begin()->second.hash != "";
outputs.begin()->second.hash;
}
@ -365,8 +375,8 @@ Hash hashDerivationModulo(Store & store, const Derivation & drv, bool maskOutput
if (drv.isFixedOutput()) {
DerivationOutputs::const_iterator i = drv.outputs.begin();
return hashString(HashType::SHA256, "fixed:out:"
+ i->second.hashAlgo + ":"
+ i->second.hash + ":"
+ i->second.hash->printMethodAlgo() + ":"
+ i->second.hash->hash.to_string(Base::Base16, false) + ":"
+ store.printStorePath(i->second.path));
}
@ -409,6 +419,30 @@ StorePathSet BasicDerivation::outputPaths() const
return paths;
}
static DerivationOutput readDerivationOutput(Source & in, const Store & store)
{
auto path = store.parseStorePath(readString(in));
auto hashAlgo = readString(in);
const auto hash = readString(in);
auto method = FileIngestionMethod::Flat;
std::optional<FileSystemHash> fsh;
if (hashAlgo != "") {
if (string(hashAlgo, 0, 2) == "r:") {
method = FileIngestionMethod::Recursive;
hashAlgo = string(hashAlgo, 2);
}
HashType hashType = parseHashType(hashAlgo);
if (hashType == HashType::Unknown)
throw Error("unknown hash hashAlgorithm '%s'", hashAlgo);
fsh = FileSystemHash {
std::move(method),
Hash(hash, hashType),
};
}
return DerivationOutput(std::move(path), std::move(fsh));
}
Source & readDerivation(Source & in, const Store & store, BasicDerivation & drv)
{
@ -416,10 +450,8 @@ Source & readDerivation(Source & in, const Store & store, BasicDerivation & drv)
auto nr = readNum<size_t>(in);
for (size_t n = 0; n < nr; n++) {
auto name = readString(in);
auto path = store.parseStorePath(readString(in));
auto hashAlgo = readString(in);
auto hash = readString(in);
drv.outputs.emplace(name, DerivationOutput(std::move(path), std::move(hashAlgo), std::move(hash)));
auto output = readDerivationOutput(in, store);
drv.outputs.emplace(name, output);
}
drv.inputSrcs = readStorePaths<StorePathSet>(store, in);
@ -441,7 +473,10 @@ void writeDerivation(Sink & out, const Store & store, const BasicDerivation & dr
{
out << drv.outputs.size();
for (auto & i : drv.outputs)
out << i.first << store.printStorePath(i.second.path) << i.second.hashAlgo << i.second.hash;
out << i.first
<< store.printStorePath(i.second.path)
<< i.second.hash->printMethodAlgo()
<< i.second.hash->hash.to_string(Base::Base16, false);
writeStorePaths(store, out, drv.inputSrcs);
out << drv.platform << drv.builder << drv.args;
out << drv.env.size();