forked from lix-project/lix
d2032edb2f
E.g. $ nix edit .#nixosConfigurations.bla now works.
97 lines
2.1 KiB
C++
97 lines
2.1 KiB
C++
#pragma once
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#include "util.hh"
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#include "path.hh"
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#include "flake/eval-cache.hh"
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#include "eval.hh"
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#include <optional>
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namespace nix {
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struct DrvInfo;
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struct SourceExprCommand;
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struct Buildable
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{
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std::optional<StorePath> drvPath;
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std::map<std::string, StorePath> outputs;
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};
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typedef std::vector<Buildable> Buildables;
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struct App
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{
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PathSet context;
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Path program;
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// FIXME: add args, sandbox settings, metadata, ...
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App(EvalState & state, Value & vApp);
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};
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struct Installable
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{
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virtual ~Installable() { }
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virtual std::string what() = 0;
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virtual Buildables toBuildables()
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{
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throw Error("argument '%s' cannot be built", what());
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}
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Buildable toBuildable();
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App toApp(EvalState & state);
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virtual std::pair<Value *, Pos> toValue(EvalState & state)
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{
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throw Error("argument '%s' cannot be evaluated", what());
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}
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/* Return a value only if this installable is a store path or a
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symlink to it. */
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virtual std::optional<StorePath> getStorePath()
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{
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return {};
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}
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};
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struct InstallableValue : Installable
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{
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SourceExprCommand & cmd;
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InstallableValue(SourceExprCommand & cmd) : cmd(cmd) { }
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virtual std::vector<flake::EvalCache::Derivation> toDerivations();
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Buildables toBuildables() override;
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};
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struct InstallableFlake : InstallableValue
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{
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FlakeRef flakeRef;
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Strings attrPaths;
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Strings prefixes;
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InstallableFlake(SourceExprCommand & cmd, FlakeRef && flakeRef,
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Strings && attrPaths, Strings && prefixes)
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: InstallableValue(cmd), flakeRef(flakeRef), attrPaths(attrPaths),
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prefixes(prefixes)
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{ }
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std::string what() override { return flakeRef.to_string() + "#" + *attrPaths.begin(); }
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std::vector<std::string> getActualAttrPaths();
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Value * getFlakeOutputs(EvalState & state, const flake::LockedFlake & lockedFlake);
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std::tuple<std::string, FlakeRef, flake::EvalCache::Derivation> toDerivation();
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std::vector<flake::EvalCache::Derivation> toDerivations() override;
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std::pair<Value *, Pos> toValue(EvalState & state) override;
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};
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}
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