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#pragma once
#include "flakeref.hh"
#include <nlohmann/json.hpp>
namespace nix {
class Store;
}
namespace nix::flake {
/* Common lock file information about a flake input, namely the
immutable ref and the NAR hash. */
struct AbstractInput
{
FlakeRef ref;
Hash narHash;
AbstractInput(const FlakeRef & flakeRef, const Hash & narHash)
: ref(flakeRef), narHash(narHash)
{
assert(ref.isImmutable());
};
AbstractInput(const nlohmann::json & json);
nlohmann::json toJson() const;
Path computeStorePath(Store & store) const;
};
/* Lock file information about a non-flake input. */
struct NonFlakeInput : AbstractInput
{
using AbstractInput::AbstractInput;
bool operator ==(const NonFlakeInput & other) const
{
return ref == other.ref && narHash == other.narHash;
}
};
struct FlakeInput;
/* Lock file information about the dependencies of a flake. */
struct FlakeInputs
{
std::map<FlakeRef, FlakeInput> flakeInputs;
std::map<FlakeAlias, NonFlakeInput> nonFlakeInputs;
FlakeInputs() {};
FlakeInputs(const nlohmann::json & json);
nlohmann::json toJson() const;
};
/* Lock file information about a flake input. */
struct FlakeInput : FlakeInputs, AbstractInput
{
FlakeId id;
FlakeInput(const FlakeId & id, const FlakeRef & flakeRef, const Hash & narHash)
: AbstractInput(flakeRef, narHash), id(id) {};
FlakeInput(const nlohmann::json & json);
bool operator ==(const FlakeInput & other) const
{
return
id == other.id
&& ref == other.ref
&& narHash == other.narHash
&& flakeInputs == other.flakeInputs
&& nonFlakeInputs == other.nonFlakeInputs;
}
nlohmann::json toJson() const;
};
/* An entire lock file. Note that this cannot be a FlakeInput for the
top-level flake, because then the lock file would need to contain
the hash of the top-level flake, but committing the lock file
would invalidate that hash. */
struct LockFile : FlakeInputs
{
bool operator ==(const LockFile & other) const
{
return
flakeInputs == other.flakeInputs
&& nonFlakeInputs == other.nonFlakeInputs;
}
LockFile() {}
LockFile(const nlohmann::json & json) : FlakeInputs(json) {}
LockFile(FlakeInput && dep)
{
flakeInputs = std::move(dep.flakeInputs);
nonFlakeInputs = std::move(dep.nonFlakeInputs);
}
nlohmann::json toJson() const;
static LockFile read(const Path & path);
void write(const Path & path) const;
};
std::ostream & operator <<(std::ostream & stream, const LockFile & lockFile);
}
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