lix/src/libstore/path-with-outputs.hh
John Ericson 255d145ba7 Use BuildableReq for buildPaths and ensurePath
This avoids an ambiguity where the `StorePathWithOutputs { drvPath, {}
}` could mean "build `brvPath`" or "substitute `drvPath`" depending on
context.

It also brings the internals closer in line to the new CLI, by
generalizing the `Buildable` type is used there and makes that
distinction already.

In doing so, relegate `StorePathWithOutputs` to being a type just for
backwards compatibility (CLI and RPC).
2021-04-05 08:33:00 -04:00

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C++

#pragma once
#include <variant>
#include "path.hh"
#include "buildable.hh"
namespace nix {
struct StorePathWithOutputs
{
StorePath path;
std::set<std::string> outputs;
std::string to_string(const Store & store) const;
BuildableReq toBuildableReq() const;
static std::variant<StorePathWithOutputs, StorePath> tryFromBuildableReq(const BuildableReq &);
};
std::vector<BuildableReq> toBuildableReqs(const std::vector<StorePathWithOutputs>);
std::pair<std::string_view, StringSet> parsePathWithOutputs(std::string_view s);
class Store;
/* Split a string specifying a derivation and a set of outputs
(/nix/store/hash-foo!out1,out2,...) into the derivation path
and the outputs. */
StorePathWithOutputs parsePathWithOutputs(const Store & store, std::string_view pathWithOutputs);
StorePathWithOutputs followLinksToStorePathWithOutputs(const Store & store, std::string_view pathWithOutputs);
}