registry.hh

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#pragma once
 
#include "lix/libutil/types.hh"
#include "lix/libfetchers/fetchers.hh"
 
namespace nix { class Store; }
 
namespace nix::fetchers {
 
struct Registry
{
    enum RegistryType {
        Flag = 0,
        User = 1,
        System = 2,
        Global = 3,
        Custom = 4,
    };
 
    RegistryType type;
 
    struct Entry
    {
        Input from, to;
        Attrs extraAttrs;
        bool exact = false;
    };
 
    std::vector<Entry> entries;
 
    Registry(RegistryType type)
        : type(type)
    { }
 
    static std::shared_ptr<Registry> read(
        const Path & path, RegistryType type);
 
    void write(const Path & path);
 
    void add(
        const Input & from,
        const Input & to,
        const Attrs & extraAttrs);
 
    void remove(const Input & input);
};
 
typedef std::vector<std::shared_ptr<Registry>> Registries;
 
std::shared_ptr<Registry> getUserRegistry();
 
std::shared_ptr<Registry> getCustomRegistry(const Path & p);
 
Path getUserRegistryPath();
 
kj::Promise<Result<Registries>> getRegistries(ref<Store> store);
 
void overrideRegistry(
    const Input & from,
    const Input & to,
    const Attrs & extraAttrs);
 
kj::Promise<Result<std::pair<Input, Attrs>>> lookupInRegistries(
    ref<Store> store,
    const Input & input);
 
}