c94f3d5575
This adds about 0.1s to nix-shell runtime in the case where bashInteractive already exists. See discussion at https://github.com/NixOS/nixpkgs/issues/27493.
88 lines
2.2 KiB
C++
88 lines
2.2 KiB
C++
#pragma once
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#include "eval.hh"
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#include <string>
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#include <map>
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namespace nix {
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struct DrvInfo
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{
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public:
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typedef std::map<string, Path> Outputs;
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private:
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EvalState * state;
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mutable string name;
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mutable string system;
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mutable string drvPath;
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mutable string outPath;
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mutable string outputName;
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Outputs outputs;
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bool failed = false; // set if we get an AssertionError
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Bindings * attrs = nullptr, * meta = nullptr;
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Bindings * getMeta();
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bool checkMeta(Value & v);
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public:
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string attrPath; /* path towards the derivation */
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DrvInfo(EvalState & state) : state(&state) { };
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DrvInfo(EvalState & state, const string & attrPath, Bindings * attrs);
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string queryName() const;
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string querySystem() const;
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string queryDrvPath() const;
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string queryOutPath() const;
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string queryOutputName() const;
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/** Return the list of outputs. The "outputs to install" are determined by `mesa.outputsToInstall`. */
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Outputs queryOutputs(bool onlyOutputsToInstall = false);
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StringSet queryMetaNames();
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Value * queryMeta(const string & name);
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string queryMetaString(const string & name);
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NixInt queryMetaInt(const string & name, NixInt def);
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NixFloat queryMetaFloat(const string & name, NixFloat def);
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bool queryMetaBool(const string & name, bool def);
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void setMeta(const string & name, Value * v);
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/*
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MetaInfo queryMetaInfo(EvalState & state) const;
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MetaValue queryMetaInfo(EvalState & state, const string & name) const;
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*/
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void setName(const string & s) { name = s; }
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void setDrvPath(const string & s) { drvPath = s; }
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void setOutPath(const string & s) { outPath = s; }
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void setFailed() { failed = true; };
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bool hasFailed() { return failed; };
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};
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#if HAVE_BOEHMGC
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typedef list<DrvInfo, traceable_allocator<DrvInfo> > DrvInfos;
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#else
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typedef list<DrvInfo> DrvInfos;
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#endif
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/* If value `v' denotes a derivation, return a DrvInfo object
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describing it. Otherwise return nothing. */
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std::experimental::optional<DrvInfo> getDerivation(EvalState & state,
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Value & v, bool ignoreAssertionFailures);
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void getDerivations(EvalState & state, Value & v, const string & pathPrefix,
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Bindings & autoArgs, DrvInfos & drvs,
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bool ignoreAssertionFailures);
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}
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