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#pragma once
#include "types.hh"
#include "hash.hh"
#include "fetchers.hh"
#include <variant>
namespace nix {
class Store;
typedef std::string FlakeId;
struct FlakeRef
{
fetchers::Input input;
Path subdir;
bool operator==(const FlakeRef & other) const;
FlakeRef(fetchers::Input && input, const Path & subdir)
: input(std::move(input)), subdir(subdir)
{ }
// FIXME: change to operator <<.
std::string to_string() const;
fetchers::Attrs toAttrs() const;
FlakeRef resolve(ref<Store> store) const;
static FlakeRef fromAttrs(const fetchers::Attrs & attrs);
std::pair<fetchers::Tree, FlakeRef> fetchTree(ref<Store> store) const;
};
std::ostream & operator << (std::ostream & str, const FlakeRef & flakeRef);
FlakeRef parseFlakeRef(
const std::string & url, const std::optional<Path> & baseDir = {}, bool allowMissing = false);
std::optional<FlakeRef> maybeParseFlake(
const std::string & url, const std::optional<Path> & baseDir = {});
std::pair<FlakeRef, std::string> parseFlakeRefWithFragment(
const std::string & url, const std::optional<Path> & baseDir = {}, bool allowMissing = false);
std::optional<std::pair<FlakeRef, std::string>> maybeParseFlakeRefWithFragment(
const std::string & url, const std::optional<Path> & baseDir = {});
}
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