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eb6db4fd38
With this, we don't have to copy the entire .drv closure to the destination store ahead of time (or at all). Instead, buildPaths() reads .drv files from the eval store and copies inputSrcs to the destination store if it needs to build a derivation. Issue #5025.
97 lines
2.4 KiB
C++
97 lines
2.4 KiB
C++
#pragma once
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#include "path.hh"
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#include <nlohmann/json_fwd.hpp>
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#include "comparator.hh"
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#include "crypto.hh"
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namespace nix {
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struct DrvOutput {
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// The hash modulo of the derivation
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Hash drvHash;
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std::string outputName;
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std::string to_string() const;
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std::string strHash() const
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{ return drvHash.to_string(Base16, true); }
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static DrvOutput parse(const std::string &);
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GENERATE_CMP(DrvOutput, me->drvHash, me->outputName);
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};
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struct Realisation {
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DrvOutput id;
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StorePath outPath;
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StringSet signatures;
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/**
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* The realisations that are required for the current one to be valid.
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*
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* When importing this realisation, the store will first check that all its
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* dependencies exist, and map to the correct output path
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*/
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std::map<DrvOutput, StorePath> dependentRealisations;
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nlohmann::json toJSON() const;
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static Realisation fromJSON(const nlohmann::json& json, const std::string& whence);
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std::string fingerprint() const;
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void sign(const SecretKey &);
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bool checkSignature(const PublicKeys & publicKeys, const std::string & sig) const;
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size_t checkSignatures(const PublicKeys & publicKeys) const;
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static std::set<Realisation> closure(Store &, const std::set<Realisation> &);
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static void closure(Store &, const std::set<Realisation> &, std::set<Realisation> & res);
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bool isCompatibleWith(const Realisation & other) const;
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StorePath getPath() const { return outPath; }
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GENERATE_CMP(Realisation, me->id, me->outPath);
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};
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typedef std::map<DrvOutput, Realisation> DrvOutputs;
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struct OpaquePath {
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StorePath path;
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StorePath getPath() const { return path; }
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GENERATE_CMP(OpaquePath, me->path);
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};
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/**
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* A store path with all the history of how it went into the store
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*/
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struct RealisedPath {
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/*
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* A path is either the result of the realisation of a derivation or
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* an opaque blob that has been directly added to the store
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*/
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using Raw = std::variant<Realisation, OpaquePath>;
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Raw raw;
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using Set = std::set<RealisedPath>;
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RealisedPath(StorePath path) : raw(OpaquePath{path}) {}
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RealisedPath(Realisation r) : raw(r) {}
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/**
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* Get the raw store path associated to this
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*/
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StorePath path() const;
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void closure(Store& store, Set& ret) const;
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static void closure(Store& store, const Set& startPaths, Set& ret);
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Set closure(Store& store) const;
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GENERATE_CMP(RealisedPath, me->raw);
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};
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}
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