nordic-dev.net/nix
nordic-dev.net/nix
2
0
Fork 0
mirror of https://github.com/NixOS/nix.git synced 2024-11-21 22:32:26 +00:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #4014 from tweag/fix-queryDrvOutputMaps-for-old-daemons

Browse Source 
gracefully handle old daemon versions
This commit is contained in:
Eelco Dolstra 2020-09-15 11:25:19 +02:00 committed by GitHub
commit 2a80170920
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 43 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
src/libstore/remote-store.cc
View File

@ -1,5 +1,6 @@
#include "serialise.hh"
#include "util.hh"
#include "remote-fs-accessor.hh"
#include "remote-store.hh"
#include "worker-protocol.hh"
#include "archive.hh"
@ -479,10 +480,26 @@ StorePathSet RemoteStore::queryDerivationOutputs(const StorePath & path)
std::map<std::string, std::optional<StorePath>> RemoteStore::queryPartialDerivationOutputMap(const StorePath & path)
{
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>>> {});
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;
}
}
@ -871,6 +888,18 @@ RemoteStore::Connection::~Connection()
}
}
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)
{

10
src/libstore/remote-store.hh
View File

@ -131,6 +131,10 @@ protected:
friend struct ConnectionHandle;
virtual ref<FSAccessor> getFSAccessor() override;
virtual void narFromPath(const StorePath & path, Sink & sink) override;
private:
std::atomic_bool failed{false};
@ -149,6 +153,12 @@ public:
bool sameMachine() override
{ return true; }
ref<FSAccessor> getFSAccessor() override
{ return LocalFSStore::getFSAccessor(); }
void narFromPath(const StorePath & path, Sink & sink) override
{ LocalFSStore::narFromPath(path, sink); }
private:
ref<RemoteStore::Connection> openConnection() override;

17
src/libstore/ssh-store.cc
View File

@ -40,10 +40,6 @@ public:
bool sameMachine() override
{ return false; }
void narFromPath(const StorePath & path, Sink & sink) override;
ref<FSAccessor> getFSAccessor() override;
private:
struct Connection : RemoteStore::Connection
@ -68,19 +64,6 @@ private:
};
};
void SSHStore::narFromPath(const StorePath & path, Sink & sink)
{
auto conn(connections->get());
conn->to << wopNarFromPath << printStorePath(path);
conn->processStderr();
copyNAR(conn->from, sink);
}
ref<FSAccessor> SSHStore::getFSAccessor()
{
return make_ref<RemoteFSAccessor>(ref<Store>(shared_from_this()));
}
ref<RemoteStore::Connection> SSHStore::openConnection()
{
auto conn = make_ref<Connection>();