ee97f107e8
More progress on issue #5729. Instead of having it by the default method in `Store` itself, have it be the implementation in `DummyStore` and `LegacySSHStore`. Then just the implementations which fail to provide the method pay the "penalty" of dealing with the icky `unimplemented` function for non-compliance. Combined with my other recent PRs, this finally makes `Store` have no `unsupported` calls!
82 lines
2.1 KiB
C++
82 lines
2.1 KiB
C++
#include "store-api.hh"
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#include "callback.hh"
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namespace nix {
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struct DummyStoreConfig : virtual StoreConfig {
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using StoreConfig::StoreConfig;
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const std::string name() override { return "Dummy Store"; }
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std::string doc() override
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{
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return
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#include "dummy-store.md"
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;
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}
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};
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struct DummyStore : public virtual DummyStoreConfig, public virtual Store
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{
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DummyStore(const std::string scheme, const std::string uri, const Params & params)
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: DummyStore(params)
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{ }
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DummyStore(const Params & params)
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: StoreConfig(params)
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, DummyStoreConfig(params)
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, Store(params)
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{ }
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std::string getUri() override
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{
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return *uriSchemes().begin();
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}
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void queryPathInfoUncached(const StorePath & path,
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Callback<std::shared_ptr<const ValidPathInfo>> callback) noexcept override
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{
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callback(nullptr);
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}
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/**
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* The dummy store is incapable of *not* trusting! :)
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*/
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virtual std::optional<TrustedFlag> isTrustedClient() override
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{
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return Trusted;
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}
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static std::set<std::string> uriSchemes() {
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return {"dummy"};
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}
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std::optional<StorePath> queryPathFromHashPart(const std::string & hashPart) override
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{ unsupported("queryPathFromHashPart"); }
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void addToStore(const ValidPathInfo & info, Source & source,
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RepairFlag repair, CheckSigsFlag checkSigs) override
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{ unsupported("addToStore"); }
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StorePath addTextToStore(
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std::string_view name,
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std::string_view s,
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const StorePathSet & references,
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RepairFlag repair) override
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{ unsupported("addTextToStore"); }
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void narFromPath(const StorePath & path, Sink & sink) override
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{ unsupported("narFromPath"); }
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void queryRealisationUncached(const DrvOutput &,
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Callback<std::shared_ptr<const Realisation>> callback) noexcept override
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{ callback(nullptr); }
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virtual ref<FSAccessor> getFSAccessor() override
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{ unsupported("getFSAccessor"); }
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};
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static RegisterStoreImplementation<DummyStore, DummyStoreConfig> regDummyStore;
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}
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