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Fallback when the daemon is too old for CA derivations

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Fix #5712
This commit is contained in:
regnat 2021-12-06 11:45:18 +01:00
parent 2e606e87c4
commit fa58bff1ab
1 changed files with 8 additions and 0 deletions
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8
src/libstore/remote-store.cc
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@ -684,6 +684,14 @@ void RemoteStore::queryRealisationUncached(const DrvOutput & id,
Callback<std::shared_ptr<const Realisation>> callback) noexcept
{
auto conn(getConnection());
if (GET_PROTOCOL_MINOR(conn->daemonVersion) < 27) {
warn("The daemon is too old for content-addressed derivations. I’ll do what I can");
try {
callback(nullptr);
} catch (...) { return callback.rethrow(); }
}
conn->to << wopQueryRealisation;
conn->to << id.to_string();
conn.processStderr();