lix/src/libstore/path-with-outputs.hh
2022-05-03 15:00:34 +02:00

58 lines
1.6 KiB
C++

#pragma once
#include <variant>
#include "path.hh"
#include "derived-path.hh"
#include "nlohmann/json_fwd.hpp"
namespace nix {
struct StorePathWithOutputs
{
StorePath path;
std::set<std::string> outputs;
std::string to_string(const Store & store) const;
DerivedPath toDerivedPath() const;
static std::variant<StorePathWithOutputs, StorePath> tryFromDerivedPath(const DerivedPath &);
};
std::vector<DerivedPath> toDerivedPaths(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);
typedef std::set<std::string> OutputNames;
struct AllOutputs {
bool operator < (const AllOutputs & _) const { return false; }
};
struct DefaultOutputs {
bool operator < (const DefaultOutputs & _) const { return false; }
};
typedef std::variant<DefaultOutputs, AllOutputs, OutputNames> OutputsSpec;
/* Parse a string of the form 'prefix^output1,...outputN' or
'prefix^*', returning the prefix and the outputs spec. */
std::pair<std::string, OutputsSpec> parseOutputsSpec(const std::string & s);
std::string printOutputsSpec(const OutputsSpec & outputsSpec);
void to_json(nlohmann::json &, const OutputsSpec &);
void from_json(const nlohmann::json &, OutputsSpec &);
}