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https://github.com/NixOS/nix
synced 2024-09-20 23:28:26 -04:00
58cdab64ac
For each known realisation, store: - its output - its output path This comes with a set of needed changes: - New `realisations` module declaring the types needed for describing these mappings - New `Store::registerDrvOutput` method registering all the needed informations about a derivation output (also replaces `LocalStore::linkDeriverToPath`) - new `Store::queryRealisation` method to retrieve the informations for a derivations This introcudes some redundancy on the remote-store side between `wopQueryDerivationOutputMap` and `wopQueryRealisation`. However we might need to keep both (regardless of backwards compat) because we sometimes need to get some infos for all the outputs of a derivation (where `wopQueryDerivationOutputMap` is handy), but all the stores can't implement it − because listing all the outputs of a derivation isn't really possible for binary caches where the server doesn't allow to list a directory.
71 lines
2.1 KiB
C++
71 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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};
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struct DummyStore : public Store, public virtual DummyStoreConfig
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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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, Store(params)
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{ }
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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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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 addToStore(const string & name, const Path & srcPath,
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FileIngestionMethod method, HashType hashAlgo,
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PathFilter & filter, RepairFlag repair) override
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{ unsupported("addToStore"); }
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StorePath addTextToStore(const string & name, const string & s,
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const StorePathSet & references, 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 ensurePath(const StorePath & path) override
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{ unsupported("ensurePath"); }
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BuildResult buildDerivation(const StorePath & drvPath, const BasicDerivation & drv,
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BuildMode buildMode) override
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{ unsupported("buildDerivation"); }
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std::optional<const Realisation> queryRealisation(const DrvOutput&) override
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{ unsupported("queryRealisation"); }
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};
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static RegisterStoreImplementation<DummyStore, DummyStoreConfig> regDummyStore;
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}
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