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gracefully handle old daemon versions

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Add a fallback path in `queryPartialDerivationOutputMap` for daemons
that don't support it.

Also upstreams a couple methods from `SSHStore` to `RemoteStore` as this
is needed to handle the fallback path.
This commit is contained in:
regnat 2020-09-07 11:26:09 +02:00
parent a59e77d9e5
commit 057c6203b5
3 changed files with 43 additions and 21 deletions
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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;