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-rw-r--r--src/libstore/build.cc10
-rw-r--r--src/libstore/daemon.cc4
-rw-r--r--src/libstore/local-store.cc12
-rw-r--r--src/libstore/local-store.hh2
-rw-r--r--src/libstore/remote-store.cc33
-rw-r--r--src/libstore/remote-store.hh2
-rw-r--r--src/libstore/store-api.cc13
-rw-r--r--src/libstore/store-api.hh10
-rw-r--r--src/libstore/worker-protocol.hh52
9 files changed, 102 insertions, 36 deletions
diff --git a/src/libstore/build.cc b/src/libstore/build.cc
index 62294a08c..3a55f24cb 100644
--- a/src/libstore/build.cc
+++ b/src/libstore/build.cc
@@ -2756,8 +2756,12 @@ struct RestrictedStore : public LocalFSStore
void queryReferrers(const StorePath & path, StorePathSet & referrers) override
{ }
- OutputPathMap queryDerivationOutputMap(const StorePath & path) override
- { throw Error("queryDerivationOutputMap"); }
+ std::map<std::string, std::optional<StorePath>> queryDerivationOutputMap(const StorePath & path) override
+ {
+ if (!goal.isAllowed(path))
+ throw InvalidPath("cannot query output map for unknown path '%s' in recursive Nix", printStorePath(path));
+ return next->queryDerivationOutputMap(path);
+ }
std::optional<StorePath> queryPathFromHashPart(const std::string & hashPart) override
{ throw Error("queryPathFromHashPart"); }
@@ -4918,7 +4922,7 @@ void Worker::waitForInput()
std::vector<unsigned char> buffer(4096);
for (auto & k : fds2) {
if (pollStatus.at(fdToPollStatus.at(k)).revents) {
- ssize_t rd = read(k, buffer.data(), buffer.size());
+ ssize_t rd = ::read(k, buffer.data(), buffer.size());
// FIXME: is there a cleaner way to handle pt close
// than EIO? Is this even standard?
if (rd == 0 || (rd == -1 && errno == EIO)) {
diff --git a/src/libstore/daemon.cc b/src/libstore/daemon.cc
index 7e16529a5..82833f5c3 100644
--- a/src/libstore/daemon.cc
+++ b/src/libstore/daemon.cc
@@ -325,9 +325,9 @@ static void performOp(TunnelLogger * logger, ref<Store> store,
case wopQueryDerivationOutputMap: {
auto path = store->parseStorePath(readString(from));
logger->startWork();
- OutputPathMap outputs = store->queryDerivationOutputMap(path);
+ auto outputs = store->queryDerivationOutputMap(path);
logger->stopWork();
- writeOutputPathMap(*store, to, outputs);
+ write(*store, to, outputs);
break;
}
diff --git a/src/libstore/local-store.cc b/src/libstore/local-store.cc
index 9ea71170f..4db4f7d6a 100644
--- a/src/libstore/local-store.cc
+++ b/src/libstore/local-store.cc
@@ -774,17 +774,21 @@ StorePathSet LocalStore::queryValidDerivers(const StorePath & path)
}
-OutputPathMap LocalStore::queryDerivationOutputMap(const StorePath & path)
+std::map<std::string, std::optional<StorePath>> LocalStore::queryDerivationOutputMap(const StorePath & path)
{
- return retrySQLite<OutputPathMap>([&]() {
+ std::map<std::string, std::optional<StorePath>> outputs;
+ BasicDerivation drv = readDerivation(path);
+ for (auto & [outName, _] : drv.outputs) {
+ outputs.insert_or_assign(outName, std::nullopt);
+ }
+ return retrySQLite<std::map<std::string, std::optional<StorePath>>>([&]() {
auto state(_state.lock());
auto useQueryDerivationOutputs(state->stmtQueryDerivationOutputs.use()
(queryValidPathId(*state, path)));
- OutputPathMap outputs;
while (useQueryDerivationOutputs.next())
- outputs.emplace(
+ outputs.insert_or_assign(
useQueryDerivationOutputs.getStr(0),
parseStorePath(useQueryDerivationOutputs.getStr(1))
);
diff --git a/src/libstore/local-store.hh b/src/libstore/local-store.hh
index 355c2814f..56ef1d251 100644
--- a/src/libstore/local-store.hh
+++ b/src/libstore/local-store.hh
@@ -133,7 +133,7 @@ public:
StorePathSet queryValidDerivers(const StorePath & path) override;
- OutputPathMap queryDerivationOutputMap(const StorePath & path) override;
+ std::map<std::string, std::optional<StorePath>> queryDerivationOutputMap(const StorePath & path) override;
std::optional<StorePath> queryPathFromHashPart(const std::string & hashPart) override;
diff --git a/src/libstore/remote-store.cc b/src/libstore/remote-store.cc
index 9af4364b7..3b3cdbc02 100644
--- a/src/libstore/remote-store.cc
+++ b/src/libstore/remote-store.cc
@@ -39,30 +39,21 @@ void writeStorePaths(const Store & store, Sink & out, const StorePathSet & paths
out << store.printStorePath(i);
}
-std::map<string, StorePath> readOutputPathMap(const Store & store, Source & from)
-{
- std::map<string, StorePath> pathMap;
- auto rawInput = readStrings<Strings>(from);
- if (rawInput.size() % 2)
- throw Error("got an odd number of elements from the daemon when trying to read a output path map");
- auto curInput = rawInput.begin();
- while (curInput != rawInput.end()) {
- auto thisKey = *curInput++;
- auto thisValue = *curInput++;
- pathMap.emplace(thisKey, store.parseStorePath(thisValue));
- }
- return pathMap;
+
+StorePath read(const Store & store, Source & from, Proxy<StorePath> _)
+{
+ auto path = readString(from);
+ return store.parseStorePath(path);
}
-void writeOutputPathMap(const Store & store, Sink & out, const std::map<string, StorePath> & pathMap)
+
+void write(const Store & store, Sink & out, const StorePath & storePath)
{
- out << 2*pathMap.size();
- for (auto & i : pathMap) {
- out << i.first;
- out << store.printStorePath(i.second);
- }
+ auto path = store.printStorePath(storePath);
+ out << path;
}
+
/* TODO: Separate these store impls into different files, give them better names */
RemoteStore::RemoteStore(const Params & params)
: Store(params)
@@ -445,12 +436,12 @@ StorePathSet RemoteStore::queryDerivationOutputs(const StorePath & path)
}
-OutputPathMap RemoteStore::queryDerivationOutputMap(const StorePath & path)
+std::map<std::string, std::optional<StorePath>> RemoteStore::queryDerivationOutputMap(const StorePath & path)
{
auto conn(getConnection());
conn->to << wopQueryDerivationOutputMap << printStorePath(path);
conn.processStderr();
- return readOutputPathMap(*this, conn->from);
+ return read(*this, conn->from, Proxy<std::map<std::string, std::optional<StorePath>>> {});
}
diff --git a/src/libstore/remote-store.hh b/src/libstore/remote-store.hh
index 3c1b78b6a..b39a8de48 100644
--- a/src/libstore/remote-store.hh
+++ b/src/libstore/remote-store.hh
@@ -51,7 +51,7 @@ public:
StorePathSet queryDerivationOutputs(const StorePath & path) override;
- OutputPathMap queryDerivationOutputMap(const StorePath & path) override;
+ std::map<std::string, std::optional<StorePath>> queryDerivationOutputMap(const StorePath & path) override;
std::optional<StorePath> queryPathFromHashPart(const std::string & hashPart) override;
StorePathSet querySubstitutablePaths(const StorePathSet & paths) override;
diff --git a/src/libstore/store-api.cc b/src/libstore/store-api.cc
index ab21b0bd5..a624fafdd 100644
--- a/src/libstore/store-api.cc
+++ b/src/libstore/store-api.cc
@@ -330,9 +330,20 @@ bool Store::PathInfoCacheValue::isKnownNow()
return std::chrono::steady_clock::now() < time_point + ttl;
}
+OutputPathMap Store::queryDerivationOutputMapAssumeTotal(const StorePath & path) {
+ auto resp = queryDerivationOutputMap(path);
+ OutputPathMap result;
+ for (auto & [outName, optOutPath] : resp) {
+ if (!optOutPath)
+ throw Error("output '%s' has no store path mapped to it", outName);
+ result.insert_or_assign(outName, *optOutPath);
+ }
+ return result;
+}
+
StorePathSet Store::queryDerivationOutputs(const StorePath & path)
{
- auto outputMap = this->queryDerivationOutputMap(path);
+ auto outputMap = this->queryDerivationOutputMapAssumeTotal(path);
StorePathSet outputPaths;
for (auto & i: outputMap) {
outputPaths.emplace(std::move(i.second));
diff --git a/src/libstore/store-api.hh b/src/libstore/store-api.hh
index d1cb2035f..a83a2ff10 100644
--- a/src/libstore/store-api.hh
+++ b/src/libstore/store-api.hh
@@ -423,10 +423,16 @@ public:
/* Query the outputs of the derivation denoted by `path'. */
virtual StorePathSet queryDerivationOutputs(const StorePath & path);
- /* Query the mapping outputName=>outputPath for the given derivation */
- virtual OutputPathMap queryDerivationOutputMap(const StorePath & path)
+ /* Query the mapping outputName => outputPath for the given derivation. All
+ outputs are mentioned so ones mising the mapping are mapped to
+ `std::nullopt`. */
+ virtual std::map<std::string, std::optional<StorePath>> queryDerivationOutputMap(const StorePath & path)
{ unsupported("queryDerivationOutputMap"); }
+ /* Query the mapping outputName=>outputPath for the given derivation.
+ Assume every output has a mapping and throw an exception otherwise. */
+ OutputPathMap queryDerivationOutputMapAssumeTotal(const StorePath & path);
+
/* Query the full store path given the hash part of a valid store
path, or empty if the path doesn't exist. */
virtual std::optional<StorePath> queryPathFromHashPart(const std::string & hashPart) = 0;
diff --git a/src/libstore/worker-protocol.hh b/src/libstore/worker-protocol.hh
index 8b538f6da..6a6e29640 100644
--- a/src/libstore/worker-protocol.hh
+++ b/src/libstore/worker-protocol.hh
@@ -70,6 +70,56 @@ template<class T> T readStorePaths(const Store & store, Source & from);
void writeStorePaths(const Store & store, Sink & out, const StorePathSet & paths);
-void writeOutputPathMap(const Store & store, Sink & out, const OutputPathMap & paths);
+/* To guide overloading */
+template<typename T>
+struct Proxy {};
+
+template<typename T>
+std::map<std::string, T> read(const Store & store, Source & from, Proxy<std::map<std::string, T>> _)
+{
+ std::map<string, T> resMap;
+ auto size = (size_t)readInt(from);
+ while (size--) {
+ auto thisKey = readString(from);
+ resMap.insert_or_assign(std::move(thisKey), read(store, from, Proxy<T> {}));
+ }
+ return resMap;
+}
+
+template<typename T>
+void write(const Store & store, Sink & out, const std::map<string, T> & resMap)
+{
+ out << resMap.size();
+ for (auto & i : resMap) {
+ out << i.first;
+ write(store, out, i.second);
+ }
+}
+
+template<typename T>
+std::optional<T> read(const Store & store, Source & from, Proxy<std::optional<T>> _)
+{
+ auto tag = readNum<uint8_t>(from);
+ switch (tag) {
+ case 0:
+ return std::nullopt;
+ case 1:
+ return read(store, from, Proxy<T> {});
+ default:
+ throw Error("got an invalid tag bit for std::optional: %#04x", tag);
+ }
+}
+
+template<typename T>
+void write(const Store & store, Sink & out, const std::optional<T> & optVal)
+{
+ out << (optVal ? 1 : 0);
+ if (optVal)
+ write(store, out, *optVal);
+}
+
+StorePath read(const Store & store, Source & from, Proxy<StorePath> _);
+
+void write(const Store & store, Sink & out, const StorePath & storePath);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 16:21:54 +0000