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WIP: store separate hasValidPath bool

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This commit is contained in:
John Ericson 2020-06-24 22:46:27 +00:00
parent 1722ae6ece
commit 71e4c9c505
17 changed files with 119 additions and 69 deletions
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3
src/libstore/binary-cache-store.cc
View file

@ -125,8 +125,7 @@ void BinaryCacheStore::addToStore(const ValidPathInfo & info, Source & narSource
reads, but typically they'll already be cached. */
for (auto & ref : info.references)
try {
if (ref != info.path)
queryPathInfo(ref);
queryPathInfo(ref);
} catch (InvalidPath &) {
throw Error("cannot add '%s' to the binary cache because the reference '%s' is not valid",
printStorePath(info.path), printStorePath(ref));

14
src/libstore/build.cc
View file

@ -3834,7 +3834,7 @@ void DerivationGoal::registerOutputs()
ValidPathInfo info(worker.store.parseStorePath(path));
info.narHash = hash.first;
info.narSize = hash.second;
info.references = std::move(references);
info.setReferencesPossiblyToSelf(std::move(references));
info.deriver = drvPath;
info.ultimate = true;
info.ca = ca;
@ -3963,12 +3963,12 @@ void DerivationGoal::checkOutputs(const std::map<Path, ValidPathInfo> & outputs)
auto i = outputsByPath.find(worker.store.printStorePath(path));
if (i != outputsByPath.end()) {
closureSize += i->second.narSize;
for (auto & ref : i->second.references)
for (auto & ref : i->second.referencesPossiblyToSelf())
pathsLeft.push(ref);
} else {
auto info = worker.store.queryPathInfo(path);
closureSize += info->narSize;
for (auto & ref : info->references)
for (auto & ref : info->referencesPossiblyToSelf())
pathsLeft.push(ref);
}
}
@ -3997,7 +3997,7 @@ void DerivationGoal::checkOutputs(const std::map<Path, ValidPathInfo> & outputs)
auto used = recursive
? getClosure(info.path).first
: info.references;
: info.referencesPossiblyToSelf();
if (recursive && checks.ignoreSelfRefs)
used.erase(info.path);
@ -4466,8 +4466,7 @@ void SubstitutionGoal::tryNext()
/* To maintain the closure invariant, we first have to realise the
paths referenced by this one. */
for (auto & i : info->references)
if (i != storePath) /* ignore self-references */
addWaitee(worker.makeSubstitutionGoal(i));
addWaitee(worker.makeSubstitutionGoal(i));
if (waitees.empty()) /* to prevent hang (no wake-up event) */
referencesValid();
@ -4487,8 +4486,7 @@ void SubstitutionGoal::referencesValid()
}
for (auto & i : info->references)
if (i != storePath) /* ignore self-references */
assert(worker.store.isValidPath(i));
assert(worker.store.isValidPath(i));
state = &SubstitutionGoal::tryToRun;
worker.wakeUp(shared_from_this());

10
src/libstore/daemon.cc
View file

@ -326,7 +326,7 @@ static void performOp(TunnelLogger * logger, ref<Store> store,
logger->startWork();
StorePathSet paths;
if (op == wopQueryReferences)
for (auto & i : store->queryPathInfo(path)->references)
for (auto & i : store->queryPathInfo(path)->referencesPossiblyToSelf())
paths.insert(i);
else if (op == wopQueryReferrers)
store->queryReferrers(path, paths);
@ -601,7 +601,7 @@ static void performOp(TunnelLogger * logger, ref<Store> store,
else {
to << 1
<< (i->second.deriver ? store->printStorePath(*i->second.deriver) : "");
writeStorePaths(*store, to, i->second.references);
writeStorePaths(*store, to, i->second.referencesPossiblyToSelf(path));
to << i->second.downloadSize
<< i->second.narSize;
}
@ -618,7 +618,7 @@ static void performOp(TunnelLogger * logger, ref<Store> store,
for (auto & i : infos) {
to << store->printStorePath(i.first)
<< (i.second.deriver ? store->printStorePath(*i.second.deriver) : "");
writeStorePaths(*store, to, i.second.references);
writeStorePaths(*store, to, i.second.referencesPossiblyToSelf(i.first));
to << i.second.downloadSize << i.second.narSize;
}
break;
@ -647,7 +647,7 @@ static void performOp(TunnelLogger * logger, ref<Store> store,
to << 1;
to << (info->deriver ? store->printStorePath(*info->deriver) : "")
<< info->narHash.to_string(Base16, false);
writeStorePaths(*store, to, info->references);
writeStorePaths(*store, to, info->referencesPossiblyToSelf());
to << info->registrationTime << info->narSize;
if (GET_PROTOCOL_MINOR(clientVersion) >= 16) {
to << info->ultimate
@ -707,7 +707,7 @@ static void performOp(TunnelLogger * logger, ref<Store> store,
if (deriver != "")
info.deriver = store->parseStorePath(deriver);
info.narHash = Hash(readString(from), htSHA256);
info.references = readStorePaths<StorePathSet>(*store, from);
info.setReferencesPossiblyToSelf(readStorePaths<StorePathSet>(*store, from));
from >> info.registrationTime >> info.narSize >> info.ultimate;
info.sigs = readStrings<StringSet>(from);
info.ca = parseContentAddressOpt(readString(from));

4
src/libstore/export-import.cc
View file

@ -62,7 +62,7 @@ void Store::exportPath(const StorePath & path, Sink & sink)
hashAndWriteSink
<< exportMagic
<< printStorePath(path);
writeStorePaths(*this, hashAndWriteSink, info->references);
writeStorePaths(*this, hashAndWriteSink, info->referencesPossiblyToSelf());
hashAndWriteSink
<< (info->deriver ? printStorePath(*info->deriver) : "")
<< 0;
@ -88,7 +88,7 @@ StorePaths Store::importPaths(Source & source, std::shared_ptr<FSAccessor> acces
//Activity act(*logger, lvlInfo, format("importing path '%s'") % info.path);
info.references = readStorePaths<StorePathSet>(*this, source);
info.setReferencesPossiblyToSelf(readStorePaths<StorePathSet>(*this, source));
auto deriver = readString(source);
if (deriver != "")

7
src/libstore/legacy-ssh-store.cc
View file

@ -103,11 +103,10 @@ struct LegacySSHStore : public Store
auto info = std::make_shared<ValidPathInfo>(parseStorePath(p));
assert(path == info->path);
PathSet references;
auto deriver = readString(conn->from);
if (deriver != "")
info->deriver = parseStorePath(deriver);
info->references = readStorePaths<StorePathSet>(*this, conn->from);
info->setReferencesPossiblyToSelf(readStorePaths<StorePathSet>(*this, conn->from));
readLongLong(conn->from); // download size
info->narSize = readLongLong(conn->from);
@ -140,7 +139,7 @@ struct LegacySSHStore : public Store
<< printStorePath(info.path)
<< (info.deriver ? printStorePath(*info.deriver) : "")
<< info.narHash.to_string(Base16, false);
writeStorePaths(*this, conn->to, info.references);
writeStorePaths(*this, conn->to, info.referencesPossiblyToSelf());
conn->to
<< info.registrationTime
<< info.narSize
@ -169,7 +168,7 @@ struct LegacySSHStore : public Store
conn->to
<< exportMagic
<< printStorePath(info.path);
writeStorePaths(*this, conn->to, info.references);
writeStorePaths(*this, conn->to, info.referencesPossiblyToSelf());
conn->to
<< (info.deriver ? printStorePath(*info.deriver) : "")
<< 0

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

@ -671,8 +671,10 @@ void LocalStore::queryPathInfoUncached(const StorePath & path,
/* Get the references. */
auto useQueryReferences(state->stmtQueryReferences.use()(info->id));
while (useQueryReferences.next())
info->references.insert(parseStorePath(useQueryReferences.getStr(0)));
while (useQueryReferences.next()) {
info->insertReferencePossiblyToSelf(
parseStorePath(useQueryReferences.getStr(0)));
}
return info;
}));
@ -856,11 +858,13 @@ void LocalStore::querySubstitutablePathInfos(const StorePathSet & paths,
auto info = sub->queryPathInfo(path);
auto narInfo = std::dynamic_pointer_cast<const NarInfo>(
std::shared_ptr<const ValidPathInfo>(info));
infos.insert_or_assign(path, SubstitutablePathInfo{
info->deriver,
infos.insert_or_assign(path, SubstitutablePathInfo {
info->references,
info->hasSelfReference,
info->deriver,
narInfo ? narInfo->fileSize : 0,
info->narSize});
info->narSize,
});
} catch (InvalidPath &) {
} catch (SubstituterDisabled &) {
} catch (Error & e) {
@ -907,7 +911,7 @@ void LocalStore::registerValidPaths(const ValidPathInfos & infos)
for (auto & i : infos) {
auto referrer = queryValidPathId(*state, i.path);
for (auto & j : i.references)
for (auto & j : i.referencesPossiblyToSelf())
state->stmtAddReference.use()(referrer)(queryValidPathId(*state, j)).exec();
}
@ -986,14 +990,13 @@ void LocalStore::addToStore(const ValidPathInfo & info, Source & source,
deletePath(realPath);
// text hashing has long been allowed to have non-self-references because it is used for drv files.
bool refersToSelf = info.references.count(info.path) > 0;
if (info.ca.has_value() && !info.references.empty() && !(std::holds_alternative<TextHash>(*info.ca) && !refersToSelf))
if (info.ca.has_value() && !info.references.empty() && !(std::holds_alternative<TextHash>(*info.ca) && info.hasSelfReference))
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.has_value() || !info.references.count(info.path))
if (!info.ca.has_value() || !info.hasSelfReference)
hashSink = std::make_unique<HashSink>(htSHA256);
else
hashSink = std::make_unique<HashModuloSink>(htSHA256, std::string(info.path.hashPart()));
@ -1254,7 +1257,7 @@ bool LocalStore::verifyStore(bool checkContents, RepairFlag repair)
printMsg(lvlTalkative, "checking contents of '%s'", printStorePath(i));
std::unique_ptr<AbstractHashSink> hashSink;
if (!info->ca || !info->references.count(info->path))
if (!info->ca || !info->hasSelfReference)
hashSink = std::make_unique<HashSink>(*info->narHash.type);
else
hashSink = std::make_unique<HashModuloSink>(*info->narHash.type, std::string(info->path.hashPart()));

5
src/libstore/misc.cc
View file

@ -61,8 +61,7 @@ void Store::computeFSClosure(const StorePathSet & startPaths,
} else {
for (auto & ref : info->references)
if (ref != path)
enqueue(printStorePath(ref));
enqueue(printStorePath(ref));
if (includeOutputs && path.isDerivation())
for (auto & i : queryDerivationOutputs(path))
@ -268,7 +267,7 @@ StorePaths Store::topoSortPaths(const StorePathSet & paths)
for (auto & i : references)
/* Don't traverse into paths that don't exist. That can
happen due to substitutes for non-existent paths. */
if (i != path && paths.count(i))
if (paths.count(i))
dfsVisit(i, &path);
sorted.push_back(path);

2
src/libstore/nar-info-disk-cache.cc
View file

@ -198,7 +198,7 @@ public:
narInfo->narHash = Hash(queryNAR.getStr(6));
narInfo->narSize = queryNAR.getInt(7);
for (auto & r : tokenizeString<Strings>(queryNAR.getStr(8), " "))
narInfo->references.insert(StorePath(r));
narInfo->insertReferencePossiblyToSelf(StorePath(r));
if (!queryNAR.isNull(9))
narInfo->deriver = StorePath(queryNAR.getStr(9));
for (auto & sig : tokenizeString<Strings>(queryNAR.getStr(10), " "))

52
src/libstore/path-info.hh
View file

@ -24,8 +24,43 @@ template<typename Ref>
struct PathReferences
{
std::set<Ref> references;
bool hasSelfReference = false;
/* Functions to view references + hasSelfReference as one set, mainly for
compatibility's sake. */
StorePathSet referencesPossiblyToSelf(const Ref & self) const;
void insertReferencePossiblyToSelf(const Ref & self, Ref && ref);
void setReferencesPossiblyToSelf(const Ref & self, std::set<Ref> && refs);
};
template<typename Ref>
StorePathSet PathReferences<Ref>::referencesPossiblyToSelf(const Ref & self) const
{
StorePathSet references { references };
if (hasSelfReference)
references.insert(self);
return references;
}
template<typename Ref>
void PathReferences<Ref>::insertReferencePossiblyToSelf(const Ref & self, Ref && ref)
{
if (ref == self)
hasSelfReference = true;
else
references.insert(std::move(ref));
}
template<typename Ref>
void PathReferences<Ref>::setReferencesPossiblyToSelf(const Ref & self, std::set<Ref> && refs)
{
if (refs.count(self))
hasSelfReference = true;
refs.erase(self);
references = refs;
}
struct ValidPathInfo : PathReferences<StorePath>
{
StorePath path;
@ -64,6 +99,7 @@ struct ValidPathInfo : PathReferences<StorePath>
return
path == i.path
&& narHash == i.narHash
&& hasSelfReference == i.hasSelfReference
&& references == i.references;
}
@ -80,6 +116,12 @@ struct ValidPathInfo : PathReferences<StorePath>
/* Return true iff the path is verifiably content-addressed. */
bool isContentAddressed(const Store & store) const;
/* Functions to view references + hasSelfReference as one set, mainly for
compatibility's sake. */
StorePathSet referencesPossiblyToSelf() const;
void insertReferencePossiblyToSelf(StorePath && ref);
void setReferencesPossiblyToSelf(StorePathSet && refs);
static const size_t maxSigs = std::numeric_limits<size_t>::max();
/* Return the number of signatures on this .narinfo that were
@ -101,4 +143,14 @@ struct ValidPathInfo : PathReferences<StorePath>
};
typedef list<ValidPathInfo> ValidPathInfos;
struct SubstitutablePathInfo : PathReferences<StorePath>
{
std::optional<StorePath> deriver;
unsigned long long downloadSize; /* 0 = unknown or inapplicable */
unsigned long long narSize; /* 0 = unknown */
};
typedef std::map<StorePath, SubstitutablePathInfo> SubstitutablePathInfos;
}

11
src/libstore/remote-store.cc
View file

@ -326,7 +326,7 @@ void RemoteStore::querySubstitutablePathInfos(const StorePathSet & paths,
auto deriver = readString(conn->from);
if (deriver != "")
info.deriver = parseStorePath(deriver);
info.references = readStorePaths<StorePathSet>(*this, conn->from);
info.setReferencesPossiblyToSelf(i, readStorePaths<StorePathSet>(*this, conn->from));
info.downloadSize = readLongLong(conn->from);
info.narSize = readLongLong(conn->from);
infos.insert_or_assign(i, std::move(info));
@ -339,11 +339,12 @@ void RemoteStore::querySubstitutablePathInfos(const StorePathSet & paths,
conn.processStderr();
size_t count = readNum<size_t>(conn->from);
for (size_t n = 0; n < count; n++) {
SubstitutablePathInfo & info(infos[parseStorePath(readString(conn->from))]);
auto path = parseStorePath(readString(conn->from));
SubstitutablePathInfo & info { infos[path] };
auto deriver = readString(conn->from);
if (deriver != "")
info.deriver = parseStorePath(deriver);
info.references = readStorePaths<StorePathSet>(*this, conn->from);
info.setReferencesPossiblyToSelf(path, readStorePaths<StorePathSet>(*this, conn->from));
info.downloadSize = readLongLong(conn->from);
info.narSize = readLongLong(conn->from);
}
@ -376,7 +377,7 @@ void RemoteStore::queryPathInfoUncached(const StorePath & path,
auto deriver = readString(conn->from);
if (deriver != "") info->deriver = parseStorePath(deriver);
info->narHash = Hash(readString(conn->from), htSHA256);
info->references = readStorePaths<StorePathSet>(*this, conn->from);
info->setReferencesPossiblyToSelf(readStorePaths<StorePathSet>(*this, conn->from));
conn->from >> info->registrationTime >> info->narSize;
if (GET_PROTOCOL_MINOR(conn->daemonVersion) >= 16) {
conn->from >> info->ultimate;
@ -455,7 +456,7 @@ void RemoteStore::addToStore(const ValidPathInfo & info, Source & source,
conn.processStderr(0, source2.get());
auto importedPaths = readStorePaths<StorePathSet>(*this, conn->from);
assert(importedPaths.size() <= 1);
assert(importedPaths.empty() == 0); // doesn't include possible self reference
}
else {

29
src/libstore/store-api.cc
View file

@ -715,7 +715,7 @@ std::optional<ValidPathInfo> decodeValidPathInfo(const Store & store, std::istre
if (!string2Int(s, n)) throw Error("number expected");
while (n--) {
getline(str, s);
info.references.insert(store.parseStorePath(s));
info.insertReferencePossiblyToSelf(store.parseStorePath(s));
}
if (!str || str.eof()) throw Error("missing input");
return std::optional<ValidPathInfo>(std::move(info));
@ -738,6 +738,20 @@ string showPaths(const PathSet & paths)
return concatStringsSep(", ", quoteStrings(paths));
}
StorePathSet ValidPathInfo::referencesPossiblyToSelf() const
{
return PathReferences<StorePath>::referencesPossiblyToSelf(path);
}
void ValidPathInfo::insertReferencePossiblyToSelf(StorePath && ref)
{
return PathReferences<StorePath>::insertReferencePossiblyToSelf(path, std::move(ref));
}
void ValidPathInfo::setReferencesPossiblyToSelf(StorePathSet && refs)
{
return PathReferences<StorePath>::setReferencesPossiblyToSelf(path, std::move(refs));
}
std::string ValidPathInfo::fingerprint(const Store & store) const
{
@ -748,7 +762,7 @@ std::string ValidPathInfo::fingerprint(const Store & store) const
"1;" + store.printStorePath(path) + ";"
+ narHash.to_string(Base32, true) + ";"
+ std::to_string(narSize) + ";"
+ concatStringsSep(",", store.printStorePathSet(references));
+ concatStringsSep(",", store.printStorePathSet(referencesPossiblyToSelf()));
}
@ -767,16 +781,11 @@ bool ValidPathInfo::isContentAddressed(const Store & store) const
auto caPath = std::visit(overloaded {
[&](TextHash th) {
assert(!hasSelfReference);
return store.makeTextPath(path.name(), th.hash, references);
},
[&](FixedOutputHash fsh) {
auto refs = references;
bool hasSelfReference = false;
if (refs.count(path)) {
hasSelfReference = true;
refs.erase(path);
}
return store.makeFixedOutputPath(fsh.method, fsh.hash, path.name(), refs, hasSelfReference);
return store.makeFixedOutputPath(fsh.method, fsh.hash, path.name(), references, hasSelfReference);
}
}, *ca);
@ -810,7 +819,7 @@ bool ValidPathInfo::checkSignature(const Store & store, const PublicKeys & publi
Strings ValidPathInfo::shortRefs() const
{
Strings refs;
for (auto & r : references)
for (auto & r : referencesPossiblyToSelf())
refs.push_back(std::string(r.to_string()));
return refs;
}

11
src/libstore/store-api.hh
View file

@ -102,17 +102,6 @@ struct GCResults
};
struct SubstitutablePathInfo
{
std::optional<StorePath> deriver;
StorePathSet references;
unsigned long long downloadSize; /* 0 = unknown or inapplicable */
unsigned long long narSize; /* 0 = unknown */
};
typedef std::map<StorePath, SubstitutablePathInfo> SubstitutablePathInfos;
enum BuildMode { bmNormal, bmRepair, bmCheck };

2
src/nix-store/dotgraph.cc
View file

@ -58,7 +58,7 @@ void printDotGraph(ref<Store> store, StorePathSet && roots)
cout << makeNode(std::string(path.to_string()), path.name(), "#ff0000");
for (auto & p : store->queryPathInfo(path)->references) {
for (auto & p : store->queryPathInfo(path)->referencesPossiblyToSelf()) {
if (p != path) {
workList.insert(p);
cout << makeEdge(std::string(p.to_string()), std::string(path.to_string()));

2
src/nix-store/graphml.cc
View file

@ -71,7 +71,7 @@ void printGraphML(ref<Store> store, StorePathSet && roots)
auto info = store->queryPathInfo(path);
cout << makeNode(*info);
for (auto & p : info->references) {
for (auto & p : info->referencesPossiblyToSelf()) {
if (p != path) {
workList.insert(p);
cout << makeEdge(path.to_string(), p.to_string());

8
src/nix-store/nix-store.cc
View file

@ -245,7 +245,7 @@ static void printTree(const StorePath & path,
closure(B). That is, if derivation A is an (possibly indirect)
input of B, then A is printed first. This has the effect of
flattening the tree, preventing deeply nested structures. */
auto sorted = store->topoSortPaths(info->references);
auto sorted = store->topoSortPaths(info->referencesPossiblyToSelf());
reverse(sorted.begin(), sorted.end());
for (const auto &[n, i] : enumerate(sorted)) {
@ -328,7 +328,7 @@ static void opQuery(Strings opFlags, Strings opArgs)
for (auto & j : ps) {
if (query == qRequisites) store->computeFSClosure(j, paths, false, includeOutputs);
else if (query == qReferences) {
for (auto & p : store->queryPathInfo(j)->references)
for (auto & p : store->queryPathInfo(j)->referencesPossiblyToSelf())
paths.insert(p);
}
else if (query == qReferrers) {
@ -859,7 +859,7 @@ static void opServe(Strings opFlags, Strings opArgs)
auto info = store->queryPathInfo(i);
out << store->printStorePath(info->path)
<< (info->deriver ? store->printStorePath(*info->deriver) : "");
writeStorePaths(*store, out, info->references);
writeStorePaths(*store, out, info->referencesPossiblyToSelf());
// !!! Maybe we want compression?
out << info->narSize // downloadSize
<< info->narSize;
@ -949,7 +949,7 @@ static void opServe(Strings opFlags, Strings opArgs)
if (deriver != "")
info.deriver = store->parseStorePath(deriver);
info.narHash = Hash(readString(in), htSHA256);
info.references = readStorePaths<StorePathSet>(*store, in);
info.setReferencesPossiblyToSelf(readStorePaths<StorePathSet>(*store, in));
in >> info.registrationTime >> info.narSize >> info.ultimate;
info.sigs = readStrings<StringSet>(in);
info.ca = parseContentAddressOpt(readString(in));

2
src/nix/make-content-addressable.cc
View file

@ -79,7 +79,7 @@ struct CmdMakeContentAddressable : StorePathsCommand, MixJSON
ValidPathInfo info(store->makeFixedOutputPath(FileIngestionMethod::Recursive, narHash, path.name(), references, hasSelfReference));
info.references = std::move(references);
if (hasSelfReference) info.references.insert(info.path);
info.hasSelfReference = std::move(hasSelfReference);
info.narHash = narHash;
info.narSize = sink.s->size();
info.ca = FixedOutputHash {

3
src/nix/sigs.cc
View file

@ -65,7 +65,8 @@ struct CmdCopySigs : StorePathsCommand
binary. */
if (info->narHash != info2->narHash ||
info->narSize != info2->narSize ||
info->references != info2->references)
info->references != info2->references ||
info->hasSelfReference != info2->hasSelfReference)
continue;
for (auto & sig : info2->sigs)