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WIP

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This commit is contained in:
John Ericson 2020-06-02 00:37:43 +00:00
parent 754c910953
commit efcd30da89
17 changed files with 88 additions and 42 deletions
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5
src/libfetchers/tarball.cc
View file

@ -70,7 +70,10 @@ DownloadFileResult downloadFile(
ValidPathInfo info(store->makeFixedOutputPath(FileIngestionMethod::Flat, hash, name));
info.narHash = hashString(HashType::SHA256, *sink.s);
info.narSize = sink.s->size();
info.ca = makeFixedOutputCA(FileIngestionMethod::Flat, hash);
info.ca = FileSystemHash {
.method = FileIngestionMethod::Flat,
.hash = hash,
};
store->addToStore(info, sink.s, NoRepair, NoCheckSigs);
storePath = std::move(info.path);
}

12
src/libstore/build.cc
View file

@ -3708,7 +3708,7 @@ void DerivationGoal::registerOutputs()
/* Check that fixed-output derivations produced the right
outputs (i.e., the content hash should match the specified
hash). */
std::string ca;
std::optional<ContentAddress> ca;
if (fixedOutput) {
@ -3757,7 +3757,10 @@ void DerivationGoal::registerOutputs()
else
assert(worker.store.parseStorePath(path) == dest);
ca = makeFixedOutputCA(i.second.hash->method, h2);
ca = FileSystemHash {
.method = i.second.hash->method,
.hash = h2,
};
}
/* Get rid of all weird permissions. This also checks that
@ -3830,7 +3833,10 @@ void DerivationGoal::registerOutputs()
info.ca = ca;
worker.store.signPathInfo(info);
if (!info.references.empty()) info.ca.clear();
if (!info.references.empty()) {
// FIXME don't we have an experimental feature for fixed output with references?
info.ca = {};
}
infos.emplace(i.first, std::move(info));
}

9
src/libstore/daemon.cc
View file

@ -650,7 +650,7 @@ static void performOp(TunnelLogger * logger, ref<Store> store,
if (GET_PROTOCOL_MINOR(clientVersion) >= 16) {
to << info->ultimate
<< info->sigs
<< info->ca;
<< renderContentAddress(info->ca);
}
} else {
assert(GET_PROTOCOL_MINOR(clientVersion) >= 17);
@ -708,7 +708,12 @@ static void performOp(TunnelLogger * logger, ref<Store> store,
info.references = readStorePaths<StorePathSet>(*store, from);
from >> info.registrationTime >> info.narSize >> info.ultimate;
info.sigs = readStrings<StringSet>(from);
from >> info.ca >> repair >> dontCheckSigs;
{
string caOptRaw;
from >> caOptRaw;
info.ca = parseCaOpt(caOptRaw);
}
from >> repair >> dontCheckSigs;
if (!trusted && dontCheckSigs)
dontCheckSigs = false;
if (!trusted)

12
src/libstore/file-hash.cc
View file

@ -38,8 +38,16 @@ std::string renderContentAddress(ContentAddress ca) {
}, ca);
}
std::string renderContentAddress(std::optionalContent<Address> ca) {
return ca ? renderContentAddress(*ca) else "";
ContentAddress parseCa(std::string_view rawCa) {
throw Error("TODO");
};
std::optional<ContentAddress> parseCaOpt(std::string_view rawCaOpt) {
return rawCaOpt == "" ? std::optional<ContentAddress> {} : parseCa(rawCaOpt);
};
std::string renderContentAddress(std::optional<ContentAddress> ca) {
return ca ? renderContentAddress(*ca) : "";
}
}

7
src/libstore/file-hash.hh
View file

@ -12,6 +12,9 @@ enum struct FileIngestionMethod : uint8_t {
struct TextHash {
Hash hash;
TextHash(const TextHash &) = default;
TextHash(TextHash &&) = default;
TextHash & operator = (const TextHash &) = default;
};
/// Pair of a hash, and how the file system was ingested
@ -56,4 +59,8 @@ std::string renderContentAddress(ContentAddress ca);
std::string renderContentAddress(std::optional<ContentAddress> ca);
ContentAddress parseCa(std::string_view rawCa);
std::optional<ContentAddress> parseCaOpt(std::string_view rawCaOpt);
}

8
src/libstore/legacy-ssh-store.cc
View file

@ -114,7 +114,11 @@ struct LegacySSHStore : public Store
if (GET_PROTOCOL_MINOR(conn->remoteVersion) >= 4) {
auto s = readString(conn->from);
info->narHash = s.empty() ? Hash() : Hash(s);
conn->from >> info->ca;
{
std::string rawCaOpt;
conn->from >> rawCaOpt;
info->ca = parseCaOpt(rawCaOpt);
}
info->sigs = readStrings<StringSet>(conn->from);
}
@ -146,7 +150,7 @@ struct LegacySSHStore : public Store
<< info.narSize
<< info.ultimate
<< info.sigs
<< info.ca;
<< renderContentAddress(info.ca);
try {
copyNAR(source, conn->to);
} catch (...) {

23
src/libstore/local-store.cc
View file

@ -576,7 +576,7 @@ void LocalStore::checkDerivationOutputs(const StorePath & drvPath, const Derivat
uint64_t LocalStore::addValidPath(State & state,
const ValidPathInfo & info, bool checkOutputs)
{
if (info.ca != "" && !info.isContentAddressed(*this))
if (info.ca && !info.isContentAddressed(*this))
throw Error("cannot add path '%s' to the Nix store because it claims to be content-addressed but isn't",
printStorePath(info.path));
@ -588,7 +588,7 @@ uint64_t LocalStore::addValidPath(State & state,
(info.narSize, info.narSize != 0)
(info.ultimate ? 1 : 0, info.ultimate)
(concatStringsSep(" ", info.sigs), !info.sigs.empty())
(info.ca, !info.ca.empty())
(renderContentAddress(info.ca), (bool) info.ca)
.exec();
uint64_t id = sqlite3_last_insert_rowid(state.db);
@ -662,7 +662,7 @@ void LocalStore::queryPathInfoUncached(const StorePath & path,
if (s) info->sigs = tokenizeString<StringSet>(s, " ");
s = (const char *) sqlite3_column_text(state->stmtQueryPathInfo, 7);
if (s) info->ca = s;
if (s) info->ca = parseCaOpt(s);
/* Get the references. */
auto useQueryReferences(state->stmtQueryReferences.use()(info->id));
@ -685,7 +685,7 @@ void LocalStore::updatePathInfo(State & state, const ValidPathInfo & info)
(info.narHash.to_string(Base::Base16))
(info.ultimate ? 1 : 0, info.ultimate)
(concatStringsSep(" ", info.sigs), !info.sigs.empty())
(info.ca, !info.ca.empty())
(renderContentAddress(info.ca), (bool) info.ca)
(printStorePath(info.path))
.exec();
}
@ -999,15 +999,13 @@ void LocalStore::addToStore(const ValidPathInfo & info, Source & source,
deletePath(realPath);
if (info.ca != "" &&
!((hasPrefix(info.ca, "text:") && !info.references.count(info.path))
|| info.references.empty()))
if (info.ca && !info.references.empty() && !std::holds_alternative<TextHash>(*info.ca))
settings.requireExperimentalFeature("ca-references");
/* While restoring the path from the NAR, compute the hash
of the NAR. */
std::unique_ptr<AbstractHashSink> hashSink;
if (info.ca == "" || !info.references.count(info.path))
if (info.ca || !info.references.count(info.path))
hashSink = std::make_unique<HashSink>(HashType::SHA256);
else
hashSink = std::make_unique<HashModuloSink>(HashType::SHA256, storePathToHash(printStorePath(info.path)));
@ -1093,7 +1091,10 @@ StorePath LocalStore::addToStoreFromDump(const string & dump, const string & nam
ValidPathInfo info(dstPath.clone());
info.narHash = hash.first;
info.narSize = hash.second;
info.ca = makeFixedOutputCA(method, h);
info.ca = FileSystemHash {
.method = method,
.hash = h,
};
registerValidPath(info);
}
@ -1157,7 +1158,7 @@ StorePath LocalStore::addTextToStore(const string & name, const string & s,
info.narHash = narHash;
info.narSize = sink.s->size();
info.references = cloneStorePathSet(references);
info.ca = "text:" + hash.to_string();
info.ca = TextHash { .hash = hash };
registerValidPath(info);
}
@ -1265,7 +1266,7 @@ bool LocalStore::verifyStore(bool checkContents, RepairFlag repair)
printMsg(Verbosity::Talkative, "checking contents of '%s'", printStorePath(i));
std::unique_ptr<AbstractHashSink> hashSink;
if (info->ca == "" || !info->references.count(info->path))
if (info->ca || !info->references.count(info->path))
hashSink = std::make_unique<HashSink>(info->narHash.type);
else
hashSink = std::make_unique<HashModuloSink>(info->narHash.type, storePathToHash(printStorePath(info->path)));

4
src/libstore/nar-info-disk-cache.cc
View file

@ -203,7 +203,7 @@ public:
narInfo->deriver = StorePath::fromBaseName(queryNAR.getStr(9));
for (auto & sig : tokenizeString<Strings>(queryNAR.getStr(10), " "))
narInfo->sigs.insert(sig);
narInfo->ca = queryNAR.getStr(11);
narInfo->ca = parseCaOpt(queryNAR.getStr(11));
return {oValid, narInfo};
});
@ -237,7 +237,7 @@ public:
(concatStringsSep(" ", info->shortRefs()))
(info->deriver ? std::string(info->deriver->to_string()) : "", (bool) info->deriver)
(concatStringsSep(" ", info->sigs))
(info->ca)
(renderContentAddress(info->ca))
(time(0)).exec();
} else {

9
src/libstore/nar-info.cc
View file

@ -67,8 +67,9 @@ NarInfo::NarInfo(const Store & store, const std::string & s, const std::string &
else if (name == "Sig")
sigs.insert(value);
else if (name == "CA") {
if (!ca.empty()) corrupt();
ca = value;
if (ca) corrupt();
// FIXME: allow blank ca or require skipping field?
ca = parseCaOpt(value);
}
pos = eol + 1;
@ -104,8 +105,8 @@ std::string NarInfo::to_string(const Store & store) const
for (auto sig : sigs)
res += "Sig: " + sig + "\n";
if (!ca.empty())
res += "CA: " + ca + "\n";
if (ca)
res += "CA: " + renderContentAddress(*ca) + "\n";
return res;
}

6
src/libstore/remote-store.cc
View file

@ -381,7 +381,9 @@ void RemoteStore::queryPathInfoUncached(const StorePath & path,
if (GET_PROTOCOL_MINOR(conn->daemonVersion) >= 16) {
conn->from >> info->ultimate;
info->sigs = readStrings<StringSet>(conn->from);
conn->from >> info->ca;
string caOptRaw;
conn->from >> caOptRaw;
info->ca = parseCaOpt(caOptRaw);
}
}
callback(std::move(info));
@ -474,7 +476,7 @@ void RemoteStore::addToStore(const ValidPathInfo & info, Source & source,
<< info.narHash.to_string(Base::Base16, false);
writeStorePaths(*this, conn->to, info.references);
conn->to << info.registrationTime << info.narSize
<< info.ultimate << info.sigs << info.ca
<< info.ultimate << info.sigs << renderContentAddress(info.ca)
<< repair << !checkSigs;
bool tunnel = GET_PROTOCOL_MINOR(conn->daemonVersion) >= 21;
if (!tunnel) copyNAR(source, conn->to);

15
src/libstore/store-api.cc
View file

@ -468,7 +468,7 @@ void Store::pathInfoToJSON(JSONPlaceholder & jsonOut, const StorePathSet & store
}
if (info->ca)
jsonPath.attr("ca", info->ca);
jsonPath.attr("ca", renderContentAddress(info->ca));
std::pair<uint64_t, uint64_t> closureSizes;
@ -760,24 +760,23 @@ bool ValidPathInfo::isContentAddressed(const Store & store) const
printError("warning: path '%s' claims to be content-addressed but isn't", store.printStorePath(path));
};
if (hasPrefix(ca, "text:")) {
Hash hash(std::string(ca, 5));
if (store.makeTextPath(path.name(), hash, references) == path)
if (! ca) {}
else if (auto p = std::get_if<TextHash>(&*ca)) {
if (store.makeTextPath(path.name(), p->hash, references) == path)
return true;
else
warn();
}
else if (hasPrefix(ca, "fixed:")) {
FileIngestionMethod recursive { ca.compare(6, 2, "r:") == 0 };
Hash hash(std::string(ca, recursive == FileIngestionMethod::Recursive ? 8 : 6));
else if (auto p = std::get_if<FileSystemHash>(&*ca)) {
auto refs = cloneStorePathSet(references);
bool hasSelfReference = false;
if (refs.count(path)) {
hasSelfReference = true;
refs.erase(path);
}
if (store.makeFixedOutputPath(recursive, hash, path.name(), refs, hasSelfReference) == path)
if (store.makeFixedOutputPath(p->method, p->hash, path.name(), refs, hasSelfReference) == path)
return true;
else
warn();

BIN
src/libutil/tests/libutil-tests
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Binary file not shown.

6
src/nix-store/nix-store.cc
View file

@ -944,7 +944,11 @@ static void opServe(Strings opFlags, Strings opArgs)
info.references = readStorePaths<StorePathSet>(*store, in);
in >> info.registrationTime >> info.narSize >> info.ultimate;
info.sigs = readStrings<StringSet>(in);
in >> info.ca;
{
std::string rawCA;
in >> rawCA;
info.ca = parseCaOpt(rawCA);
}
if (info.narSize == 0)
throw Error("narInfo is too old and missing the narSize field");

5
src/nix/add-to-store.cc
View file

@ -48,7 +48,10 @@ struct CmdAddToStore : MixDryRun, StoreCommand
ValidPathInfo info(store->makeFixedOutputPath(FileIngestionMethod::Recursive, narHash, *namePart));
info.narHash = narHash;
info.narSize = sink.s->size();
info.ca = makeFixedOutputCA(FileIngestionMethod::Recursive, info.narHash);
*info.ca = FileSystemHash {
.method = FileIngestionMethod::Recursive,
.hash = info.narHash
};
if (!dryRun)
store->addToStore(info, sink.s);

5
src/nix/make-content-addressable.cc
View file

@ -82,7 +82,10 @@ struct CmdMakeContentAddressable : StorePathsCommand, MixJSON
if (hasSelfReference) info.references.insert(info.path.clone());
info.narHash = narHash;
info.narSize = sink.s->size();
info.ca = makeFixedOutputCA(FileIngestionMethod::Recursive, info.narHash);
info.ca = FileSystemHash {
.method = FileIngestionMethod::Recursive,
.hash = info.narHash,
};
if (!json)
printError("rewrote '%s' to '%s'", pathS, store->printStorePath(info.path));

2
src/nix/path-info.cc
View file

@ -115,7 +115,7 @@ struct CmdPathInfo : StorePathsCommand, MixJSON
std::cout << '\t';
Strings ss;
if (info->ultimate) ss.push_back("ultimate");
if (info->ca != "") ss.push_back("ca:" + renderContentAddress(*info->ca));
if (info->ca) ss.push_back("ca:" + renderContentAddress(*info->ca));
for (auto & sig : info->sigs) ss.push_back(sig);
std::cout << concatStringsSep(" ", ss);
}

2
src/nix/verify.cc
View file

@ -87,7 +87,7 @@ struct CmdVerify : StorePathsCommand
if (!noContents) {
std::unique_ptr<AbstractHashSink> hashSink;
if (info->ca == "")
if (info->ca)
hashSink = std::make_unique<HashSink>(info->narHash.type);
else
hashSink = std::make_unique<HashModuloSink>(info->narHash.type, storePathToHash(store->printStorePath(info->path)));