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#include "types.hh"
#include "flakeref.hh"
#include <variant>
namespace nix {
static const size_t FLAG_REGISTRY = 0;
static const size_t USER_REGISTRY = 1;
static const size_t GLOBAL_REGISTRY = 2;
struct Value;
class EvalState;
struct FlakeRegistry
{
std::map<FlakeRef, FlakeRef> entries;
};
struct LockFile
{
struct NonFlakeEntry
{
FlakeRef ref;
Hash narHash;
NonFlakeEntry(const FlakeRef & flakeRef, const Hash & hash) : ref(flakeRef), narHash(hash) {};
bool operator ==(const NonFlakeEntry & other) const
{
return ref == other.ref && narHash == other.narHash;
}
};
struct FlakeEntry
{
FlakeRef ref;
Hash narHash;
std::map<FlakeRef, FlakeEntry> flakeEntries;
std::map<FlakeAlias, NonFlakeEntry> nonFlakeEntries;
FlakeEntry(const FlakeRef & flakeRef, const Hash & hash) : ref(flakeRef), narHash(hash) {};
bool operator ==(const FlakeEntry & other) const
{
return
ref == other.ref
&& narHash == other.narHash
&& flakeEntries == other.flakeEntries
&& nonFlakeEntries == other.nonFlakeEntries;
}
};
std::map<FlakeRef, FlakeEntry> flakeEntries;
std::map<FlakeAlias, NonFlakeEntry> nonFlakeEntries;
bool operator ==(const LockFile & other) const
{
return
flakeEntries == other.flakeEntries
&& nonFlakeEntries == other.nonFlakeEntries;
}
};
typedef std::vector<std::shared_ptr<FlakeRegistry>> Registries;
Path getUserRegistryPath();
enum HandleLockFile : unsigned int
{ AllPure // Everything is handled 100% purely
, TopRefUsesRegistries // The top FlakeRef uses the registries, apart from that, everything happens 100% purely
, UpdateLockFile // Update the existing lockfile and write it to file
, UseUpdatedLockFile // `UpdateLockFile` without writing to file
, RecreateLockFile // Recreate the lockfile from scratch and write it to file
, UseNewLockFile // `RecreateLockFile` without writing to file
};
void makeFlakeValue(EvalState &, const FlakeRef &, HandleLockFile, Value &);
std::shared_ptr<FlakeRegistry> readRegistry(const Path &);
void writeRegistry(const FlakeRegistry &, const Path &);
struct SourceInfo
{
FlakeRef resolvedRef;
Path storePath;
std::optional<uint64_t> revCount;
Hash narHash; // store path hash
SourceInfo(const FlakeRef & resolvRef) : resolvedRef(resolvRef) {};
};
struct Flake
{
FlakeId id;
FlakeRef originalRef;
std::string description;
SourceInfo sourceInfo;
std::vector<FlakeRef> requires;
std::map<FlakeAlias, FlakeRef> nonFlakeRequires;
Value * vProvides; // FIXME: gc
unsigned int epoch;
Flake(const FlakeRef & origRef, const SourceInfo & sourceInfo)
: originalRef(origRef), sourceInfo(sourceInfo) {};
};
struct NonFlake
{
FlakeAlias alias;
FlakeRef originalRef;
SourceInfo sourceInfo;
NonFlake(const FlakeRef & origRef, const SourceInfo & sourceInfo)
: originalRef(origRef), sourceInfo(sourceInfo) {};
};
Flake getFlake(EvalState &, const FlakeRef &, bool impureIsAllowed);
struct ResolvedFlake
{
Flake flake;
std::map<FlakeRef, ResolvedFlake> flakeDeps; // The key in this map, is the originalRef as written in flake.nix
std::vector<NonFlake> nonFlakeDeps;
ResolvedFlake(const Flake & flake) : flake(flake) {}
};
ResolvedFlake resolveFlake(EvalState &, const FlakeRef &, HandleLockFile);
void callFlake(EvalState & state, const ResolvedFlake & resFlake, Value & v);
void updateLockFile(EvalState &, const FlakeRef & flakeRef, bool recreateLockFile);
void gitCloneFlake(FlakeRef flakeRef, EvalState &, Registries, const Path & destDir);
}
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