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#pragma once
#include "flakeref.hh"
#include <nlohmann/json_fwd.hpp>
namespace nix {
class Store;
struct StorePath;
}
namespace nix::flake {
using namespace fetchers;
typedef std::vector<FlakeId> InputPath;
/* A node in the lock file. It has outgoing edges to other nodes (its
inputs). Only the root node has this type; all other nodes have
type LockedNode. */
struct Node : std::enable_shared_from_this<Node>
{
std::map<FlakeId, std::shared_ptr<Node>> inputs;
virtual ~Node() { }
std::shared_ptr<Node> findInput(const InputPath & path);
};
/* A non-root node in the lock file. */
struct LockedNode : Node
{
FlakeRef lockedRef, originalRef;
TreeInfo info;
bool isFlake = true;
LockedNode(
const FlakeRef & lockedRef,
const FlakeRef & originalRef,
const TreeInfo & info,
bool isFlake = true)
: lockedRef(lockedRef), originalRef(originalRef), info(info), isFlake(isFlake)
{ }
LockedNode(const nlohmann::json & json);
StorePath computeStorePath(Store & store) const;
};
struct LockFile
{
std::shared_ptr<Node> root = std::make_shared<Node>();
LockFile() {};
LockFile(const nlohmann::json & json, const Path & path);
nlohmann::json toJson() const;
std::string to_string() const;
static LockFile read(const Path & path);
void write(const Path & path) const;
bool isImmutable() const;
bool operator ==(const LockFile & other) const;
};
std::ostream & operator <<(std::ostream & stream, const LockFile & lockFile);
InputPath parseInputPath(std::string_view s);
std::string diffLockFiles(const LockFile & oldLocks, const LockFile & newLocks);
}
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