forked from lix-project/lix
296831f641
This is needed in subsequent commits to allow the settings and CLI args infrastructure itself to read this setting.
1242 lines
38 KiB
C++
1242 lines
38 KiB
C++
#include "serialise.hh"
|
|
#include "util.hh"
|
|
#include "path-with-outputs.hh"
|
|
#include "gc-store.hh"
|
|
#include "remote-fs-accessor.hh"
|
|
#include "build-result.hh"
|
|
#include "remote-store.hh"
|
|
#include "worker-protocol.hh"
|
|
#include "archive.hh"
|
|
#include "globals.hh"
|
|
#include "derivations.hh"
|
|
#include "pool.hh"
|
|
#include "finally.hh"
|
|
#include "logging.hh"
|
|
#include "callback.hh"
|
|
#include "filetransfer.hh"
|
|
#include <nlohmann/json.hpp>
|
|
|
|
namespace nix {
|
|
|
|
namespace worker_proto {
|
|
|
|
std::string read(const Store & store, Source & from, Phantom<std::string> _)
|
|
{
|
|
return readString(from);
|
|
}
|
|
|
|
void write(const Store & store, Sink & out, const std::string & str)
|
|
{
|
|
out << str;
|
|
}
|
|
|
|
|
|
StorePath read(const Store & store, Source & from, Phantom<StorePath> _)
|
|
{
|
|
return store.parseStorePath(readString(from));
|
|
}
|
|
|
|
void write(const Store & store, Sink & out, const StorePath & storePath)
|
|
{
|
|
out << store.printStorePath(storePath);
|
|
}
|
|
|
|
|
|
ContentAddress read(const Store & store, Source & from, Phantom<ContentAddress> _)
|
|
{
|
|
return parseContentAddress(readString(from));
|
|
}
|
|
|
|
void write(const Store & store, Sink & out, const ContentAddress & ca)
|
|
{
|
|
out << renderContentAddress(ca);
|
|
}
|
|
|
|
|
|
DerivedPath read(const Store & store, Source & from, Phantom<DerivedPath> _)
|
|
{
|
|
auto s = readString(from);
|
|
return DerivedPath::parse(store, s);
|
|
}
|
|
|
|
void write(const Store & store, Sink & out, const DerivedPath & req)
|
|
{
|
|
out << req.to_string(store);
|
|
}
|
|
|
|
|
|
Realisation read(const Store & store, Source & from, Phantom<Realisation> _)
|
|
{
|
|
std::string rawInput = readString(from);
|
|
return Realisation::fromJSON(
|
|
nlohmann::json::parse(rawInput),
|
|
"remote-protocol"
|
|
);
|
|
}
|
|
|
|
void write(const Store & store, Sink & out, const Realisation & realisation)
|
|
{
|
|
out << realisation.toJSON().dump();
|
|
}
|
|
|
|
|
|
DrvOutput read(const Store & store, Source & from, Phantom<DrvOutput> _)
|
|
{
|
|
return DrvOutput::parse(readString(from));
|
|
}
|
|
|
|
void write(const Store & store, Sink & out, const DrvOutput & drvOutput)
|
|
{
|
|
out << drvOutput.to_string();
|
|
}
|
|
|
|
|
|
BuildResult read(const Store & store, Source & from, Phantom<BuildResult> _)
|
|
{
|
|
auto path = worker_proto::read(store, from, Phantom<DerivedPath> {});
|
|
BuildResult res { .path = path };
|
|
res.status = (BuildResult::Status) readInt(from);
|
|
from
|
|
>> res.errorMsg
|
|
>> res.timesBuilt
|
|
>> res.isNonDeterministic
|
|
>> res.startTime
|
|
>> res.stopTime;
|
|
res.builtOutputs = worker_proto::read(store, from, Phantom<DrvOutputs> {});
|
|
return res;
|
|
}
|
|
|
|
void write(const Store & store, Sink & to, const BuildResult & res)
|
|
{
|
|
worker_proto::write(store, to, res.path);
|
|
to
|
|
<< res.status
|
|
<< res.errorMsg
|
|
<< res.timesBuilt
|
|
<< res.isNonDeterministic
|
|
<< res.startTime
|
|
<< res.stopTime;
|
|
worker_proto::write(store, to, res.builtOutputs);
|
|
}
|
|
|
|
|
|
std::optional<StorePath> read(const Store & store, Source & from, Phantom<std::optional<StorePath>> _)
|
|
{
|
|
auto s = readString(from);
|
|
return s == "" ? std::optional<StorePath> {} : store.parseStorePath(s);
|
|
}
|
|
|
|
void write(const Store & store, Sink & out, const std::optional<StorePath> & storePathOpt)
|
|
{
|
|
out << (storePathOpt ? store.printStorePath(*storePathOpt) : "");
|
|
}
|
|
|
|
|
|
std::optional<ContentAddress> read(const Store & store, Source & from, Phantom<std::optional<ContentAddress>> _)
|
|
{
|
|
return parseContentAddressOpt(readString(from));
|
|
}
|
|
|
|
void write(const Store & store, Sink & out, const std::optional<ContentAddress> & caOpt)
|
|
{
|
|
out << (caOpt ? renderContentAddress(*caOpt) : "");
|
|
}
|
|
|
|
}
|
|
|
|
|
|
/* TODO: Separate these store impls into different files, give them better names */
|
|
RemoteStore::RemoteStore(const Params & params)
|
|
: RemoteStoreConfig(params)
|
|
, Store(params)
|
|
, connections(make_ref<Pool<Connection>>(
|
|
std::max(1, (int) maxConnections),
|
|
[this]() {
|
|
auto conn = openConnectionWrapper();
|
|
try {
|
|
initConnection(*conn);
|
|
} catch (...) {
|
|
failed = true;
|
|
throw;
|
|
}
|
|
return conn;
|
|
},
|
|
[this](const ref<Connection> & r) {
|
|
return
|
|
r->to.good()
|
|
&& r->from.good()
|
|
&& std::chrono::duration_cast<std::chrono::seconds>(
|
|
std::chrono::steady_clock::now() - r->startTime).count() < maxConnectionAge;
|
|
}
|
|
))
|
|
{
|
|
}
|
|
|
|
|
|
ref<RemoteStore::Connection> RemoteStore::openConnectionWrapper()
|
|
{
|
|
if (failed)
|
|
throw Error("opening a connection to remote store '%s' previously failed", getUri());
|
|
try {
|
|
return openConnection();
|
|
} catch (...) {
|
|
failed = true;
|
|
throw;
|
|
}
|
|
}
|
|
|
|
|
|
void RemoteStore::initConnection(Connection & conn)
|
|
{
|
|
/* Send the magic greeting, check for the reply. */
|
|
try {
|
|
conn.to << WORKER_MAGIC_1;
|
|
conn.to.flush();
|
|
StringSink saved;
|
|
try {
|
|
TeeSource tee(conn.from, saved);
|
|
unsigned int magic = readInt(tee);
|
|
if (magic != WORKER_MAGIC_2)
|
|
throw Error("protocol mismatch");
|
|
} catch (SerialisationError & e) {
|
|
/* In case the other side is waiting for our input, close
|
|
it. */
|
|
conn.closeWrite();
|
|
auto msg = conn.from.drain();
|
|
throw Error("protocol mismatch, got '%s'", chomp(saved.s + msg));
|
|
}
|
|
|
|
conn.from >> conn.daemonVersion;
|
|
if (GET_PROTOCOL_MAJOR(conn.daemonVersion) != GET_PROTOCOL_MAJOR(PROTOCOL_VERSION))
|
|
throw Error("Nix daemon protocol version not supported");
|
|
if (GET_PROTOCOL_MINOR(conn.daemonVersion) < 10)
|
|
throw Error("the Nix daemon version is too old");
|
|
conn.to << PROTOCOL_VERSION;
|
|
|
|
if (GET_PROTOCOL_MINOR(conn.daemonVersion) >= 14) {
|
|
// Obsolete CPU affinity.
|
|
conn.to << 0;
|
|
}
|
|
|
|
if (GET_PROTOCOL_MINOR(conn.daemonVersion) >= 11)
|
|
conn.to << false; // obsolete reserveSpace
|
|
|
|
if (GET_PROTOCOL_MINOR(conn.daemonVersion) >= 33) {
|
|
conn.to.flush();
|
|
conn.daemonNixVersion = readString(conn.from);
|
|
}
|
|
|
|
auto ex = conn.processStderr();
|
|
if (ex) std::rethrow_exception(ex);
|
|
}
|
|
catch (Error & e) {
|
|
throw Error("cannot open connection to remote store '%s': %s", getUri(), e.what());
|
|
}
|
|
|
|
setOptions(conn);
|
|
}
|
|
|
|
|
|
void RemoteStore::setOptions(Connection & conn)
|
|
{
|
|
conn.to << wopSetOptions
|
|
<< settings.keepFailed
|
|
<< settings.keepGoing
|
|
<< settings.tryFallback
|
|
<< verbosity
|
|
<< settings.maxBuildJobs
|
|
<< settings.maxSilentTime
|
|
<< true
|
|
<< (settings.verboseBuild ? lvlError : lvlVomit)
|
|
<< 0 // obsolete log type
|
|
<< 0 /* obsolete print build trace */
|
|
<< settings.buildCores
|
|
<< settings.useSubstitutes;
|
|
|
|
if (GET_PROTOCOL_MINOR(conn.daemonVersion) >= 12) {
|
|
std::map<std::string, Config::SettingInfo> overrides;
|
|
settings.getSettings(overrides, true); // libstore settings
|
|
fileTransferSettings.getSettings(overrides, true);
|
|
overrides.erase(settings.keepFailed.name);
|
|
overrides.erase(settings.keepGoing.name);
|
|
overrides.erase(settings.tryFallback.name);
|
|
overrides.erase(settings.maxBuildJobs.name);
|
|
overrides.erase(settings.maxSilentTime.name);
|
|
overrides.erase(settings.buildCores.name);
|
|
overrides.erase(settings.useSubstitutes.name);
|
|
overrides.erase(loggerSettings.showTrace.name);
|
|
overrides.erase(experimentalFeatureSettings.experimentalFeatures.name);
|
|
overrides.erase(settings.pluginFiles.name);
|
|
conn.to << overrides.size();
|
|
for (auto & i : overrides)
|
|
conn.to << i.first << i.second.value;
|
|
}
|
|
|
|
auto ex = conn.processStderr();
|
|
if (ex) std::rethrow_exception(ex);
|
|
}
|
|
|
|
|
|
/* A wrapper around Pool<RemoteStore::Connection>::Handle that marks
|
|
the connection as bad (causing it to be closed) if a non-daemon
|
|
exception is thrown before the handle is closed. Such an exception
|
|
causes a deviation from the expected protocol and therefore a
|
|
desynchronization between the client and daemon. */
|
|
struct ConnectionHandle
|
|
{
|
|
Pool<RemoteStore::Connection>::Handle handle;
|
|
bool daemonException = false;
|
|
|
|
ConnectionHandle(Pool<RemoteStore::Connection>::Handle && handle)
|
|
: handle(std::move(handle))
|
|
{ }
|
|
|
|
ConnectionHandle(ConnectionHandle && h)
|
|
: handle(std::move(h.handle))
|
|
{ }
|
|
|
|
~ConnectionHandle()
|
|
{
|
|
if (!daemonException && std::uncaught_exceptions()) {
|
|
handle.markBad();
|
|
debug("closing daemon connection because of an exception");
|
|
}
|
|
}
|
|
|
|
RemoteStore::Connection * operator -> () { return &*handle; }
|
|
|
|
void processStderr(Sink * sink = 0, Source * source = 0, bool flush = true)
|
|
{
|
|
auto ex = handle->processStderr(sink, source, flush);
|
|
if (ex) {
|
|
daemonException = true;
|
|
std::rethrow_exception(ex);
|
|
}
|
|
}
|
|
|
|
void withFramedSink(std::function<void(Sink & sink)> fun);
|
|
};
|
|
|
|
|
|
ConnectionHandle RemoteStore::getConnection()
|
|
{
|
|
return ConnectionHandle(connections->get());
|
|
}
|
|
|
|
void RemoteStore::setOptions()
|
|
{
|
|
setOptions(*(getConnection().handle));
|
|
}
|
|
|
|
bool RemoteStore::isValidPathUncached(const StorePath & path)
|
|
{
|
|
auto conn(getConnection());
|
|
conn->to << wopIsValidPath << printStorePath(path);
|
|
conn.processStderr();
|
|
return readInt(conn->from);
|
|
}
|
|
|
|
|
|
StorePathSet RemoteStore::queryValidPaths(const StorePathSet & paths, SubstituteFlag maybeSubstitute)
|
|
{
|
|
auto conn(getConnection());
|
|
if (GET_PROTOCOL_MINOR(conn->daemonVersion) < 12) {
|
|
StorePathSet res;
|
|
for (auto & i : paths)
|
|
if (isValidPath(i)) res.insert(i);
|
|
return res;
|
|
} else {
|
|
conn->to << wopQueryValidPaths;
|
|
worker_proto::write(*this, conn->to, paths);
|
|
if (GET_PROTOCOL_MINOR(conn->daemonVersion) >= 27) {
|
|
conn->to << (settings.buildersUseSubstitutes ? 1 : 0);
|
|
}
|
|
conn.processStderr();
|
|
return worker_proto::read(*this, conn->from, Phantom<StorePathSet> {});
|
|
}
|
|
}
|
|
|
|
|
|
StorePathSet RemoteStore::queryAllValidPaths()
|
|
{
|
|
auto conn(getConnection());
|
|
conn->to << wopQueryAllValidPaths;
|
|
conn.processStderr();
|
|
return worker_proto::read(*this, conn->from, Phantom<StorePathSet> {});
|
|
}
|
|
|
|
|
|
StorePathSet RemoteStore::querySubstitutablePaths(const StorePathSet & paths)
|
|
{
|
|
auto conn(getConnection());
|
|
if (GET_PROTOCOL_MINOR(conn->daemonVersion) < 12) {
|
|
StorePathSet res;
|
|
for (auto & i : paths) {
|
|
conn->to << wopHasSubstitutes << printStorePath(i);
|
|
conn.processStderr();
|
|
if (readInt(conn->from)) res.insert(i);
|
|
}
|
|
return res;
|
|
} else {
|
|
conn->to << wopQuerySubstitutablePaths;
|
|
worker_proto::write(*this, conn->to, paths);
|
|
conn.processStderr();
|
|
return worker_proto::read(*this, conn->from, Phantom<StorePathSet> {});
|
|
}
|
|
}
|
|
|
|
|
|
void RemoteStore::querySubstitutablePathInfos(const StorePathCAMap & pathsMap, SubstitutablePathInfos & infos)
|
|
{
|
|
if (pathsMap.empty()) return;
|
|
|
|
auto conn(getConnection());
|
|
|
|
if (GET_PROTOCOL_MINOR(conn->daemonVersion) < 12) {
|
|
|
|
for (auto & i : pathsMap) {
|
|
SubstitutablePathInfo info;
|
|
conn->to << wopQuerySubstitutablePathInfo << printStorePath(i.first);
|
|
conn.processStderr();
|
|
unsigned int reply = readInt(conn->from);
|
|
if (reply == 0) continue;
|
|
auto deriver = readString(conn->from);
|
|
if (deriver != "")
|
|
info.deriver = parseStorePath(deriver);
|
|
info.references = worker_proto::read(*this, conn->from, Phantom<StorePathSet> {});
|
|
info.downloadSize = readLongLong(conn->from);
|
|
info.narSize = readLongLong(conn->from);
|
|
infos.insert_or_assign(i.first, std::move(info));
|
|
}
|
|
|
|
} else {
|
|
|
|
conn->to << wopQuerySubstitutablePathInfos;
|
|
if (GET_PROTOCOL_MINOR(conn->daemonVersion) < 22) {
|
|
StorePathSet paths;
|
|
for (auto & path : pathsMap)
|
|
paths.insert(path.first);
|
|
worker_proto::write(*this, conn->to, paths);
|
|
} else
|
|
worker_proto::write(*this, conn->to, pathsMap);
|
|
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 deriver = readString(conn->from);
|
|
if (deriver != "")
|
|
info.deriver = parseStorePath(deriver);
|
|
info.references = worker_proto::read(*this, conn->from, Phantom<StorePathSet> {});
|
|
info.downloadSize = readLongLong(conn->from);
|
|
info.narSize = readLongLong(conn->from);
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
|
|
void RemoteStore::queryPathInfoUncached(const StorePath & path,
|
|
Callback<std::shared_ptr<const ValidPathInfo>> callback) noexcept
|
|
{
|
|
try {
|
|
std::shared_ptr<const ValidPathInfo> info;
|
|
{
|
|
auto conn(getConnection());
|
|
conn->to << wopQueryPathInfo << printStorePath(path);
|
|
try {
|
|
conn.processStderr();
|
|
} catch (Error & e) {
|
|
// Ugly backwards compatibility hack.
|
|
if (e.msg().find("is not valid") != std::string::npos)
|
|
throw InvalidPath(std::move(e.info()));
|
|
throw;
|
|
}
|
|
if (GET_PROTOCOL_MINOR(conn->daemonVersion) >= 17) {
|
|
bool valid; conn->from >> valid;
|
|
if (!valid) throw InvalidPath("path '%s' is not valid", printStorePath(path));
|
|
}
|
|
info = std::make_shared<ValidPathInfo>(
|
|
ValidPathInfo::read(conn->from, *this, GET_PROTOCOL_MINOR(conn->daemonVersion), StorePath{path}));
|
|
}
|
|
callback(std::move(info));
|
|
} catch (...) { callback.rethrow(); }
|
|
}
|
|
|
|
|
|
void RemoteStore::queryReferrers(const StorePath & path,
|
|
StorePathSet & referrers)
|
|
{
|
|
auto conn(getConnection());
|
|
conn->to << wopQueryReferrers << printStorePath(path);
|
|
conn.processStderr();
|
|
for (auto & i : worker_proto::read(*this, conn->from, Phantom<StorePathSet> {}))
|
|
referrers.insert(i);
|
|
}
|
|
|
|
|
|
StorePathSet RemoteStore::queryValidDerivers(const StorePath & path)
|
|
{
|
|
auto conn(getConnection());
|
|
conn->to << wopQueryValidDerivers << printStorePath(path);
|
|
conn.processStderr();
|
|
return worker_proto::read(*this, conn->from, Phantom<StorePathSet> {});
|
|
}
|
|
|
|
|
|
StorePathSet RemoteStore::queryDerivationOutputs(const StorePath & path)
|
|
{
|
|
if (GET_PROTOCOL_MINOR(getProtocol()) >= 0x16) {
|
|
return Store::queryDerivationOutputs(path);
|
|
}
|
|
auto conn(getConnection());
|
|
conn->to << wopQueryDerivationOutputs << printStorePath(path);
|
|
conn.processStderr();
|
|
return worker_proto::read(*this, conn->from, Phantom<StorePathSet> {});
|
|
}
|
|
|
|
|
|
std::map<std::string, std::optional<StorePath>> RemoteStore::queryPartialDerivationOutputMap(const StorePath & path)
|
|
{
|
|
if (GET_PROTOCOL_MINOR(getProtocol()) >= 0x16) {
|
|
auto conn(getConnection());
|
|
conn->to << wopQueryDerivationOutputMap << printStorePath(path);
|
|
conn.processStderr();
|
|
return worker_proto::read(*this, conn->from, Phantom<std::map<std::string, std::optional<StorePath>>> {});
|
|
} else {
|
|
// Fallback for old daemon versions.
|
|
// For floating-CA derivations (and their co-dependencies) this is an
|
|
// under-approximation as it only returns the paths that can be inferred
|
|
// from the derivation itself (and not the ones that are known because
|
|
// the have been built), but as old stores don't handle floating-CA
|
|
// derivations this shouldn't matter
|
|
auto derivation = readDerivation(path);
|
|
auto outputsWithOptPaths = derivation.outputsAndOptPaths(*this);
|
|
std::map<std::string, std::optional<StorePath>> ret;
|
|
for (auto & [outputName, outputAndPath] : outputsWithOptPaths) {
|
|
ret.emplace(outputName, outputAndPath.second);
|
|
}
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
std::optional<StorePath> RemoteStore::queryPathFromHashPart(const std::string & hashPart)
|
|
{
|
|
auto conn(getConnection());
|
|
conn->to << wopQueryPathFromHashPart << hashPart;
|
|
conn.processStderr();
|
|
Path path = readString(conn->from);
|
|
if (path.empty()) return {};
|
|
return parseStorePath(path);
|
|
}
|
|
|
|
|
|
ref<const ValidPathInfo> RemoteStore::addCAToStore(
|
|
Source & dump,
|
|
std::string_view name,
|
|
ContentAddressMethod caMethod,
|
|
const StorePathSet & references,
|
|
RepairFlag repair)
|
|
{
|
|
std::optional<ConnectionHandle> conn_(getConnection());
|
|
auto & conn = *conn_;
|
|
|
|
if (GET_PROTOCOL_MINOR(conn->daemonVersion) >= 25) {
|
|
|
|
conn->to
|
|
<< wopAddToStore
|
|
<< name
|
|
<< renderContentAddressMethod(caMethod);
|
|
worker_proto::write(*this, conn->to, references);
|
|
conn->to << repair;
|
|
|
|
// The dump source may invoke the store, so we need to make some room.
|
|
connections->incCapacity();
|
|
{
|
|
Finally cleanup([&]() { connections->decCapacity(); });
|
|
conn.withFramedSink([&](Sink & sink) {
|
|
dump.drainInto(sink);
|
|
});
|
|
}
|
|
|
|
return make_ref<ValidPathInfo>(
|
|
ValidPathInfo::read(conn->from, *this, GET_PROTOCOL_MINOR(conn->daemonVersion)));
|
|
}
|
|
else {
|
|
if (repair) throw Error("repairing is not supported when building through the Nix daemon protocol < 1.25");
|
|
|
|
std::visit(overloaded {
|
|
[&](const TextHashMethod & thm) -> void {
|
|
std::string s = dump.drain();
|
|
conn->to << wopAddTextToStore << name << s;
|
|
worker_proto::write(*this, conn->to, references);
|
|
conn.processStderr();
|
|
},
|
|
[&](const FixedOutputHashMethod & fohm) -> void {
|
|
conn->to
|
|
<< wopAddToStore
|
|
<< name
|
|
<< ((fohm.hashType == htSHA256 && fohm.fileIngestionMethod == FileIngestionMethod::Recursive) ? 0 : 1) /* backwards compatibility hack */
|
|
<< (fohm.fileIngestionMethod == FileIngestionMethod::Recursive ? 1 : 0)
|
|
<< printHashType(fohm.hashType);
|
|
|
|
try {
|
|
conn->to.written = 0;
|
|
connections->incCapacity();
|
|
{
|
|
Finally cleanup([&]() { connections->decCapacity(); });
|
|
if (fohm.fileIngestionMethod == FileIngestionMethod::Recursive) {
|
|
dump.drainInto(conn->to);
|
|
} else {
|
|
std::string contents = dump.drain();
|
|
dumpString(contents, conn->to);
|
|
}
|
|
}
|
|
conn.processStderr();
|
|
} catch (SysError & e) {
|
|
/* Daemon closed while we were sending the path. Probably OOM
|
|
or I/O error. */
|
|
if (e.errNo == EPIPE)
|
|
try {
|
|
conn.processStderr();
|
|
} catch (EndOfFile & e) { }
|
|
throw;
|
|
}
|
|
|
|
}
|
|
}, caMethod);
|
|
auto path = parseStorePath(readString(conn->from));
|
|
// Release our connection to prevent a deadlock in queryPathInfo().
|
|
conn_.reset();
|
|
return queryPathInfo(path);
|
|
}
|
|
}
|
|
|
|
|
|
StorePath RemoteStore::addToStoreFromDump(Source & dump, std::string_view name,
|
|
FileIngestionMethod method, HashType hashType, RepairFlag repair, const StorePathSet & references)
|
|
{
|
|
return addCAToStore(dump, name, FixedOutputHashMethod{ .fileIngestionMethod = method, .hashType = hashType }, references, repair)->path;
|
|
}
|
|
|
|
|
|
void RemoteStore::addToStore(const ValidPathInfo & info, Source & source,
|
|
RepairFlag repair, CheckSigsFlag checkSigs)
|
|
{
|
|
auto conn(getConnection());
|
|
|
|
if (GET_PROTOCOL_MINOR(conn->daemonVersion) < 18) {
|
|
conn->to << wopImportPaths;
|
|
|
|
auto source2 = sinkToSource([&](Sink & sink) {
|
|
sink << 1 // == path follows
|
|
;
|
|
copyNAR(source, sink);
|
|
sink
|
|
<< exportMagic
|
|
<< printStorePath(info.path);
|
|
worker_proto::write(*this, sink, info.references);
|
|
sink
|
|
<< (info.deriver ? printStorePath(*info.deriver) : "")
|
|
<< 0 // == no legacy signature
|
|
<< 0 // == no path follows
|
|
;
|
|
});
|
|
|
|
conn.processStderr(0, source2.get());
|
|
|
|
auto importedPaths = worker_proto::read(*this, conn->from, Phantom<StorePathSet> {});
|
|
assert(importedPaths.size() <= 1);
|
|
}
|
|
|
|
else {
|
|
conn->to << wopAddToStoreNar
|
|
<< printStorePath(info.path)
|
|
<< (info.deriver ? printStorePath(*info.deriver) : "")
|
|
<< info.narHash.to_string(Base16, false);
|
|
worker_proto::write(*this, conn->to, info.references);
|
|
conn->to << info.registrationTime << info.narSize
|
|
<< info.ultimate << info.sigs << renderContentAddress(info.ca)
|
|
<< repair << !checkSigs;
|
|
|
|
if (GET_PROTOCOL_MINOR(conn->daemonVersion) >= 23) {
|
|
conn.withFramedSink([&](Sink & sink) {
|
|
copyNAR(source, sink);
|
|
});
|
|
} else if (GET_PROTOCOL_MINOR(conn->daemonVersion) >= 21) {
|
|
conn.processStderr(0, &source);
|
|
} else {
|
|
copyNAR(source, conn->to);
|
|
conn.processStderr(0, nullptr);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void RemoteStore::addMultipleToStore(
|
|
PathsSource & pathsToCopy,
|
|
Activity & act,
|
|
RepairFlag repair,
|
|
CheckSigsFlag checkSigs)
|
|
{
|
|
auto source = sinkToSource([&](Sink & sink) {
|
|
sink << pathsToCopy.size();
|
|
for (auto & [pathInfo, pathSource] : pathsToCopy) {
|
|
pathInfo.write(sink, *this, 16);
|
|
pathSource->drainInto(sink);
|
|
}
|
|
});
|
|
|
|
addMultipleToStore(*source, repair, checkSigs);
|
|
}
|
|
|
|
void RemoteStore::addMultipleToStore(
|
|
Source & source,
|
|
RepairFlag repair,
|
|
CheckSigsFlag checkSigs)
|
|
{
|
|
if (GET_PROTOCOL_MINOR(getConnection()->daemonVersion) >= 32) {
|
|
auto conn(getConnection());
|
|
conn->to
|
|
<< wopAddMultipleToStore
|
|
<< repair
|
|
<< !checkSigs;
|
|
conn.withFramedSink([&](Sink & sink) {
|
|
source.drainInto(sink);
|
|
});
|
|
} else
|
|
Store::addMultipleToStore(source, repair, checkSigs);
|
|
}
|
|
|
|
|
|
StorePath RemoteStore::addTextToStore(
|
|
std::string_view name,
|
|
std::string_view s,
|
|
const StorePathSet & references,
|
|
RepairFlag repair)
|
|
{
|
|
StringSource source(s);
|
|
return addCAToStore(source, name, TextHashMethod{}, references, repair)->path;
|
|
}
|
|
|
|
void RemoteStore::registerDrvOutput(const Realisation & info)
|
|
{
|
|
auto conn(getConnection());
|
|
conn->to << wopRegisterDrvOutput;
|
|
if (GET_PROTOCOL_MINOR(conn->daemonVersion) < 31) {
|
|
conn->to << info.id.to_string();
|
|
conn->to << std::string(info.outPath.to_string());
|
|
} else {
|
|
worker_proto::write(*this, conn->to, info);
|
|
}
|
|
conn.processStderr();
|
|
}
|
|
|
|
void RemoteStore::queryRealisationUncached(const DrvOutput & id,
|
|
Callback<std::shared_ptr<const Realisation>> callback) noexcept
|
|
{
|
|
try {
|
|
auto conn(getConnection());
|
|
|
|
if (GET_PROTOCOL_MINOR(conn->daemonVersion) < 27) {
|
|
warn("the daemon is too old to support content-addressed derivations, please upgrade it to 2.4");
|
|
return callback(nullptr);
|
|
}
|
|
|
|
conn->to << wopQueryRealisation;
|
|
conn->to << id.to_string();
|
|
conn.processStderr();
|
|
|
|
auto real = [&]() -> std::shared_ptr<const Realisation> {
|
|
if (GET_PROTOCOL_MINOR(conn->daemonVersion) < 31) {
|
|
auto outPaths = worker_proto::read(
|
|
*this, conn->from, Phantom<std::set<StorePath>> {});
|
|
if (outPaths.empty())
|
|
return nullptr;
|
|
return std::make_shared<const Realisation>(Realisation { .id = id, .outPath = *outPaths.begin() });
|
|
} else {
|
|
auto realisations = worker_proto::read(
|
|
*this, conn->from, Phantom<std::set<Realisation>> {});
|
|
if (realisations.empty())
|
|
return nullptr;
|
|
return std::make_shared<const Realisation>(*realisations.begin());
|
|
}
|
|
}();
|
|
|
|
callback(std::shared_ptr<const Realisation>(real));
|
|
} catch (...) { return callback.rethrow(); }
|
|
}
|
|
|
|
static void writeDerivedPaths(RemoteStore & store, ConnectionHandle & conn, const std::vector<DerivedPath> & reqs)
|
|
{
|
|
if (GET_PROTOCOL_MINOR(conn->daemonVersion) >= 30) {
|
|
worker_proto::write(store, conn->to, reqs);
|
|
} else {
|
|
Strings ss;
|
|
for (auto & p : reqs) {
|
|
auto sOrDrvPath = StorePathWithOutputs::tryFromDerivedPath(p);
|
|
std::visit(overloaded {
|
|
[&](const StorePathWithOutputs & s) {
|
|
ss.push_back(s.to_string(store));
|
|
},
|
|
[&](const StorePath & drvPath) {
|
|
throw Error("trying to request '%s', but daemon protocol %d.%d is too old (< 1.29) to request a derivation file",
|
|
store.printStorePath(drvPath),
|
|
GET_PROTOCOL_MAJOR(conn->daemonVersion),
|
|
GET_PROTOCOL_MINOR(conn->daemonVersion));
|
|
},
|
|
}, sOrDrvPath);
|
|
}
|
|
conn->to << ss;
|
|
}
|
|
}
|
|
|
|
void RemoteStore::copyDrvsFromEvalStore(
|
|
const std::vector<DerivedPath> & paths,
|
|
std::shared_ptr<Store> evalStore)
|
|
{
|
|
if (evalStore && evalStore.get() != this) {
|
|
/* The remote doesn't have a way to access evalStore, so copy
|
|
the .drvs. */
|
|
RealisedPath::Set drvPaths2;
|
|
for (auto & i : paths)
|
|
if (auto p = std::get_if<DerivedPath::Built>(&i))
|
|
drvPaths2.insert(p->drvPath);
|
|
copyClosure(*evalStore, *this, drvPaths2);
|
|
}
|
|
}
|
|
|
|
void RemoteStore::buildPaths(const std::vector<DerivedPath> & drvPaths, BuildMode buildMode, std::shared_ptr<Store> evalStore)
|
|
{
|
|
copyDrvsFromEvalStore(drvPaths, evalStore);
|
|
|
|
auto conn(getConnection());
|
|
conn->to << wopBuildPaths;
|
|
assert(GET_PROTOCOL_MINOR(conn->daemonVersion) >= 13);
|
|
writeDerivedPaths(*this, conn, drvPaths);
|
|
if (GET_PROTOCOL_MINOR(conn->daemonVersion) >= 15)
|
|
conn->to << buildMode;
|
|
else
|
|
/* Old daemons did not take a 'buildMode' parameter, so we
|
|
need to validate it here on the client side. */
|
|
if (buildMode != bmNormal)
|
|
throw Error("repairing or checking is not supported when building through the Nix daemon");
|
|
conn.processStderr();
|
|
readInt(conn->from);
|
|
}
|
|
|
|
std::vector<BuildResult> RemoteStore::buildPathsWithResults(
|
|
const std::vector<DerivedPath> & paths,
|
|
BuildMode buildMode,
|
|
std::shared_ptr<Store> evalStore)
|
|
{
|
|
copyDrvsFromEvalStore(paths, evalStore);
|
|
|
|
std::optional<ConnectionHandle> conn_(getConnection());
|
|
auto & conn = *conn_;
|
|
|
|
if (GET_PROTOCOL_MINOR(conn->daemonVersion) >= 34) {
|
|
conn->to << wopBuildPathsWithResults;
|
|
writeDerivedPaths(*this, conn, paths);
|
|
conn->to << buildMode;
|
|
conn.processStderr();
|
|
return worker_proto::read(*this, conn->from, Phantom<std::vector<BuildResult>> {});
|
|
} else {
|
|
// Avoid deadlock.
|
|
conn_.reset();
|
|
|
|
// Note: this throws an exception if a build/substitution
|
|
// fails, but meh.
|
|
buildPaths(paths, buildMode, evalStore);
|
|
|
|
std::vector<BuildResult> results;
|
|
|
|
for (auto & path : paths) {
|
|
std::visit(
|
|
overloaded {
|
|
[&](const DerivedPath::Opaque & bo) {
|
|
results.push_back(BuildResult {
|
|
.status = BuildResult::Substituted,
|
|
.path = bo,
|
|
});
|
|
},
|
|
[&](const DerivedPath::Built & bfd) {
|
|
BuildResult res {
|
|
.status = BuildResult::Built,
|
|
.path = bfd,
|
|
};
|
|
|
|
OutputPathMap outputs;
|
|
auto drv = evalStore->readDerivation(bfd.drvPath);
|
|
const auto outputHashes = staticOutputHashes(*evalStore, drv); // FIXME: expensive
|
|
auto built = resolveDerivedPath(*this, bfd, &*evalStore);
|
|
for (auto & [output, outputPath] : built) {
|
|
auto outputHash = get(outputHashes, output);
|
|
if (!outputHash)
|
|
throw Error(
|
|
"the derivation '%s' doesn't have an output named '%s'",
|
|
printStorePath(bfd.drvPath), output);
|
|
auto outputId = DrvOutput{ *outputHash, output };
|
|
if (experimentalFeatureSettings.isEnabled(Xp::CaDerivations)) {
|
|
auto realisation =
|
|
queryRealisation(outputId);
|
|
if (!realisation)
|
|
throw MissingRealisation(outputId);
|
|
res.builtOutputs.emplace(realisation->id, *realisation);
|
|
} else {
|
|
res.builtOutputs.emplace(
|
|
outputId,
|
|
Realisation {
|
|
.id = outputId,
|
|
.outPath = outputPath,
|
|
});
|
|
}
|
|
}
|
|
|
|
results.push_back(res);
|
|
}
|
|
},
|
|
path.raw());
|
|
}
|
|
|
|
return results;
|
|
}
|
|
}
|
|
|
|
|
|
BuildResult RemoteStore::buildDerivation(const StorePath & drvPath, const BasicDerivation & drv,
|
|
BuildMode buildMode)
|
|
{
|
|
auto conn(getConnection());
|
|
conn->to << wopBuildDerivation << printStorePath(drvPath);
|
|
writeDerivation(conn->to, *this, drv);
|
|
conn->to << buildMode;
|
|
conn.processStderr();
|
|
BuildResult res {
|
|
.path = DerivedPath::Built {
|
|
.drvPath = drvPath,
|
|
.outputs = OutputsSpec::All { },
|
|
},
|
|
};
|
|
res.status = (BuildResult::Status) readInt(conn->from);
|
|
conn->from >> res.errorMsg;
|
|
if (GET_PROTOCOL_MINOR(conn->daemonVersion) >= 29) {
|
|
conn->from >> res.timesBuilt >> res.isNonDeterministic >> res.startTime >> res.stopTime;
|
|
}
|
|
if (GET_PROTOCOL_MINOR(conn->daemonVersion) >= 28) {
|
|
auto builtOutputs = worker_proto::read(*this, conn->from, Phantom<DrvOutputs> {});
|
|
res.builtOutputs = builtOutputs;
|
|
}
|
|
return res;
|
|
}
|
|
|
|
|
|
void RemoteStore::ensurePath(const StorePath & path)
|
|
{
|
|
auto conn(getConnection());
|
|
conn->to << wopEnsurePath << printStorePath(path);
|
|
conn.processStderr();
|
|
readInt(conn->from);
|
|
}
|
|
|
|
|
|
void RemoteStore::addTempRoot(const StorePath & path)
|
|
{
|
|
auto conn(getConnection());
|
|
conn->to << wopAddTempRoot << printStorePath(path);
|
|
conn.processStderr();
|
|
readInt(conn->from);
|
|
}
|
|
|
|
|
|
void RemoteStore::addIndirectRoot(const Path & path)
|
|
{
|
|
auto conn(getConnection());
|
|
conn->to << wopAddIndirectRoot << path;
|
|
conn.processStderr();
|
|
readInt(conn->from);
|
|
}
|
|
|
|
|
|
Roots RemoteStore::findRoots(bool censor)
|
|
{
|
|
auto conn(getConnection());
|
|
conn->to << wopFindRoots;
|
|
conn.processStderr();
|
|
size_t count = readNum<size_t>(conn->from);
|
|
Roots result;
|
|
while (count--) {
|
|
Path link = readString(conn->from);
|
|
auto target = parseStorePath(readString(conn->from));
|
|
result[std::move(target)].emplace(link);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
|
|
void RemoteStore::collectGarbage(const GCOptions & options, GCResults & results)
|
|
{
|
|
auto conn(getConnection());
|
|
|
|
conn->to
|
|
<< wopCollectGarbage << options.action;
|
|
worker_proto::write(*this, conn->to, options.pathsToDelete);
|
|
conn->to << options.ignoreLiveness
|
|
<< options.maxFreed
|
|
/* removed options */
|
|
<< 0 << 0 << 0;
|
|
|
|
conn.processStderr();
|
|
|
|
results.paths = readStrings<PathSet>(conn->from);
|
|
results.bytesFreed = readLongLong(conn->from);
|
|
readLongLong(conn->from); // obsolete
|
|
|
|
{
|
|
auto state_(Store::state.lock());
|
|
state_->pathInfoCache.clear();
|
|
}
|
|
}
|
|
|
|
|
|
void RemoteStore::optimiseStore()
|
|
{
|
|
auto conn(getConnection());
|
|
conn->to << wopOptimiseStore;
|
|
conn.processStderr();
|
|
readInt(conn->from);
|
|
}
|
|
|
|
|
|
bool RemoteStore::verifyStore(bool checkContents, RepairFlag repair)
|
|
{
|
|
auto conn(getConnection());
|
|
conn->to << wopVerifyStore << checkContents << repair;
|
|
conn.processStderr();
|
|
return readInt(conn->from);
|
|
}
|
|
|
|
|
|
void RemoteStore::addSignatures(const StorePath & storePath, const StringSet & sigs)
|
|
{
|
|
auto conn(getConnection());
|
|
conn->to << wopAddSignatures << printStorePath(storePath) << sigs;
|
|
conn.processStderr();
|
|
readInt(conn->from);
|
|
}
|
|
|
|
|
|
void RemoteStore::queryMissing(const std::vector<DerivedPath> & targets,
|
|
StorePathSet & willBuild, StorePathSet & willSubstitute, StorePathSet & unknown,
|
|
uint64_t & downloadSize, uint64_t & narSize)
|
|
{
|
|
{
|
|
auto conn(getConnection());
|
|
if (GET_PROTOCOL_MINOR(conn->daemonVersion) < 19)
|
|
// Don't hold the connection handle in the fallback case
|
|
// to prevent a deadlock.
|
|
goto fallback;
|
|
conn->to << wopQueryMissing;
|
|
writeDerivedPaths(*this, conn, targets);
|
|
conn.processStderr();
|
|
willBuild = worker_proto::read(*this, conn->from, Phantom<StorePathSet> {});
|
|
willSubstitute = worker_proto::read(*this, conn->from, Phantom<StorePathSet> {});
|
|
unknown = worker_proto::read(*this, conn->from, Phantom<StorePathSet> {});
|
|
conn->from >> downloadSize >> narSize;
|
|
return;
|
|
}
|
|
|
|
fallback:
|
|
return Store::queryMissing(targets, willBuild, willSubstitute,
|
|
unknown, downloadSize, narSize);
|
|
}
|
|
|
|
|
|
void RemoteStore::addBuildLog(const StorePath & drvPath, std::string_view log)
|
|
{
|
|
auto conn(getConnection());
|
|
conn->to << wopAddBuildLog << drvPath.to_string();
|
|
StringSource source(log);
|
|
conn.withFramedSink([&](Sink & sink) {
|
|
source.drainInto(sink);
|
|
});
|
|
readInt(conn->from);
|
|
}
|
|
|
|
|
|
std::optional<std::string> RemoteStore::getVersion()
|
|
{
|
|
auto conn(getConnection());
|
|
return conn->daemonNixVersion;
|
|
}
|
|
|
|
|
|
void RemoteStore::connect()
|
|
{
|
|
auto conn(getConnection());
|
|
}
|
|
|
|
|
|
unsigned int RemoteStore::getProtocol()
|
|
{
|
|
auto conn(connections->get());
|
|
return conn->daemonVersion;
|
|
}
|
|
|
|
|
|
void RemoteStore::flushBadConnections()
|
|
{
|
|
connections->flushBad();
|
|
}
|
|
|
|
|
|
RemoteStore::Connection::~Connection()
|
|
{
|
|
try {
|
|
to.flush();
|
|
} catch (...) {
|
|
ignoreException();
|
|
}
|
|
}
|
|
|
|
void RemoteStore::narFromPath(const StorePath & path, Sink & sink)
|
|
{
|
|
auto conn(connections->get());
|
|
conn->to << wopNarFromPath << printStorePath(path);
|
|
conn->processStderr();
|
|
copyNAR(conn->from, sink);
|
|
}
|
|
|
|
ref<FSAccessor> RemoteStore::getFSAccessor()
|
|
{
|
|
return make_ref<RemoteFSAccessor>(ref<Store>(shared_from_this()));
|
|
}
|
|
|
|
static Logger::Fields readFields(Source & from)
|
|
{
|
|
Logger::Fields fields;
|
|
size_t size = readInt(from);
|
|
for (size_t n = 0; n < size; n++) {
|
|
auto type = (decltype(Logger::Field::type)) readInt(from);
|
|
if (type == Logger::Field::tInt)
|
|
fields.push_back(readNum<uint64_t>(from));
|
|
else if (type == Logger::Field::tString)
|
|
fields.push_back(readString(from));
|
|
else
|
|
throw Error("got unsupported field type %x from Nix daemon", (int) type);
|
|
}
|
|
return fields;
|
|
}
|
|
|
|
|
|
std::exception_ptr RemoteStore::Connection::processStderr(Sink * sink, Source * source, bool flush)
|
|
{
|
|
if (flush)
|
|
to.flush();
|
|
|
|
while (true) {
|
|
|
|
auto msg = readNum<uint64_t>(from);
|
|
|
|
if (msg == STDERR_WRITE) {
|
|
auto s = readString(from);
|
|
if (!sink) throw Error("no sink");
|
|
(*sink)(s);
|
|
}
|
|
|
|
else if (msg == STDERR_READ) {
|
|
if (!source) throw Error("no source");
|
|
size_t len = readNum<size_t>(from);
|
|
auto buf = std::make_unique<char[]>(len);
|
|
writeString({(const char *) buf.get(), source->read(buf.get(), len)}, to);
|
|
to.flush();
|
|
}
|
|
|
|
else if (msg == STDERR_ERROR) {
|
|
if (GET_PROTOCOL_MINOR(daemonVersion) >= 26) {
|
|
return std::make_exception_ptr(readError(from));
|
|
} else {
|
|
auto error = readString(from);
|
|
unsigned int status = readInt(from);
|
|
return std::make_exception_ptr(Error(status, error));
|
|
}
|
|
}
|
|
|
|
else if (msg == STDERR_NEXT)
|
|
printError(chomp(readString(from)));
|
|
|
|
else if (msg == STDERR_START_ACTIVITY) {
|
|
auto act = readNum<ActivityId>(from);
|
|
auto lvl = (Verbosity) readInt(from);
|
|
auto type = (ActivityType) readInt(from);
|
|
auto s = readString(from);
|
|
auto fields = readFields(from);
|
|
auto parent = readNum<ActivityId>(from);
|
|
logger->startActivity(act, lvl, type, s, fields, parent);
|
|
}
|
|
|
|
else if (msg == STDERR_STOP_ACTIVITY) {
|
|
auto act = readNum<ActivityId>(from);
|
|
logger->stopActivity(act);
|
|
}
|
|
|
|
else if (msg == STDERR_RESULT) {
|
|
auto act = readNum<ActivityId>(from);
|
|
auto type = (ResultType) readInt(from);
|
|
auto fields = readFields(from);
|
|
logger->result(act, type, fields);
|
|
}
|
|
|
|
else if (msg == STDERR_LAST)
|
|
break;
|
|
|
|
else
|
|
throw Error("got unknown message type %x from Nix daemon", msg);
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
void ConnectionHandle::withFramedSink(std::function<void(Sink & sink)> fun)
|
|
{
|
|
(*this)->to.flush();
|
|
|
|
std::exception_ptr ex;
|
|
|
|
/* Handle log messages / exceptions from the remote on a separate
|
|
thread. */
|
|
std::thread stderrThread([&]()
|
|
{
|
|
try {
|
|
processStderr(nullptr, nullptr, false);
|
|
} catch (...) {
|
|
ex = std::current_exception();
|
|
}
|
|
});
|
|
|
|
Finally joinStderrThread([&]()
|
|
{
|
|
if (stderrThread.joinable()) {
|
|
stderrThread.join();
|
|
if (ex) {
|
|
try {
|
|
std::rethrow_exception(ex);
|
|
} catch (...) {
|
|
ignoreException();
|
|
}
|
|
}
|
|
}
|
|
});
|
|
|
|
{
|
|
FramedSink sink((*this)->to, ex);
|
|
fun(sink);
|
|
sink.flush();
|
|
}
|
|
|
|
stderrThread.join();
|
|
if (ex)
|
|
std::rethrow_exception(ex);
|
|
}
|
|
|
|
}
|