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https://github.com/NixOS/nix
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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.
35 lines
804 B
C++
35 lines
804 B
C++
#pragma once
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#include "path.hh"
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namespace nix {
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struct DrvOutput {
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StorePath drvPath;
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std::string outputName;
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std::string to_string() const;
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static DrvOutput parse(const std::string &);
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bool operator<(const DrvOutput& other) const { return to_pair() < other.to_pair(); }
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bool operator==(const DrvOutput& other) const { return to_pair() == other.to_pair(); }
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private:
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// Just to make comparison operators easier to write
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std::pair<StorePath, std::string> to_pair() const
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{ return std::make_pair(drvPath, 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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std::string to_string() const;
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static Realisation parse(const std::string & s, const std::string & whence);
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};
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typedef std::map<DrvOutput, Realisation> DrvOutputs;
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}
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