mirror of
https://github.com/NixOS/nix
synced 2025-06-25 06:31:14 +02:00
fe8b42df23
Motivation: See the linked issues for details. The most notable user-relevant bits are: - This cleans up the `MountedSSHStore`: decomposed into its orthogonal parts - This brings us pretty close to being able to then implement a JSON-based config. - Store query parameters can be JSON - Stores can entirely be specified via JSON objects, but this is not yet hooked up to anything. Also behind the scenes have these benefits: 1. The docs are moved out of the headers, good for less rebuilding when they changes 2. Stores are always constructed from store configs 3. Use JSON, avoid custom serializers Context: Part of #11106 Co-Authored-By: Robert Hensing <robert@roberthensing.nl> Co-authored-by: Sergei Zimmerman <145775305+xokdvium@users.noreply.github.com>
71 lines
2.5 KiB
C++
71 lines
2.5 KiB
C++
#include <nlohmann/json.hpp>
|
|
|
|
#include "nix/store/config-parse.hh"
|
|
#include "nix/util/json-utils.hh"
|
|
#include "nix/util/util.hh"
|
|
|
|
namespace nix::config {
|
|
|
|
};
|
|
|
|
namespace nlohmann {
|
|
|
|
using namespace nix::config;
|
|
|
|
SettingDescription adl_serializer<SettingDescription>::from_json(const json & json)
|
|
{
|
|
auto & obj = getObject(json);
|
|
return {
|
|
.description = getString(valueAt(obj, "description")),
|
|
.experimentalFeature = valueAt(obj, "experimentalFeature").get<std::optional<Xp>>(),
|
|
.info = [&]() -> decltype(SettingDescription::info) {
|
|
if (auto documentDefault = optionalValueAt(obj, "documentDefault")) {
|
|
return SettingDescription::Single{
|
|
.defaultValue = *documentDefault ? (std::optional<nlohmann::json>{valueAt(obj, "defaultValue")})
|
|
: (std::optional<nlohmann::json>{}),
|
|
};
|
|
} else {
|
|
auto & subObj = getObject(valueAt(obj, "subSettings"));
|
|
return SettingDescription::Sub{
|
|
.nullable = valueAt(subObj, "nullable"),
|
|
.map = valueAt(subObj, "map"),
|
|
};
|
|
}
|
|
}(),
|
|
};
|
|
}
|
|
|
|
void adl_serializer<SettingDescription>::to_json(json & obj, SettingDescription sd)
|
|
{
|
|
obj.emplace("description", sd.description);
|
|
// obj.emplace("aliases", sd.aliases);
|
|
obj.emplace("experimentalFeature", sd.experimentalFeature);
|
|
|
|
std::visit(
|
|
overloaded{
|
|
[&](const SettingDescription::Single & single) {
|
|
// Indicate the default value is JSON, rather than a legacy setting
|
|
// boolean or string.
|
|
//
|
|
// TODO remove if we no longer have the legacy setting system / the
|
|
// code handling doc rendering of the settings is decoupled.
|
|
obj.emplace("isJson", true);
|
|
|
|
// Cannot just use `null` because the default value might itself be
|
|
// `null`.
|
|
obj.emplace("documentDefault", single.defaultValue.has_value());
|
|
|
|
if (single.defaultValue.has_value())
|
|
obj.emplace("defaultValue", *single.defaultValue);
|
|
},
|
|
[&](const SettingDescription::Sub & sub) {
|
|
json subJson;
|
|
subJson.emplace("nullable", sub.nullable);
|
|
subJson.emplace("map", sub.map);
|
|
obj.emplace("subSettings", std::move(subJson));
|
|
},
|
|
},
|
|
sd.info);
|
|
}
|
|
|
|
}
|