pollymc/launcher/meta/JsonFormat.cpp

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/* Copyright 2015-2021 MultiMC Contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "JsonFormat.h"
// FIXME: remove this from here... somehow
#include "minecraft/OneSixVersionFormat.h"
#include "Json.h"
#include "Index.h"
#include "Version.h"
#include "VersionList.h"
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using namespace Json;
namespace Meta
{
MetadataVersion currentFormatVersion()
{
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return MetadataVersion::InitialRelease;
}
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// Index
static std::shared_ptr<Index> parseIndexInternal(const QJsonObject &obj)
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{
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const QVector<QJsonObject> objects = requireIsArrayOf<QJsonObject>(obj, "packages");
QVector<VersionListPtr> lists;
lists.reserve(objects.size());
std::transform(objects.begin(), objects.end(), std::back_inserter(lists), [](const QJsonObject &obj)
{
VersionListPtr list = std::make_shared<VersionList>(requireString(obj, "uid"));
list->setName(ensureString(obj, "name", QString()));
return list;
});
return std::make_shared<Index>(lists);
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}
// Version
static VersionPtr parseCommonVersion(const QString &uid, const QJsonObject &obj)
{
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VersionPtr version = std::make_shared<Version>(uid, requireString(obj, "version"));
version->setTime(QDateTime::fromString(requireString(obj, "releaseTime"), Qt::ISODate).toMSecsSinceEpoch() / 1000);
version->setType(ensureString(obj, "type", QString()));
version->setRecommended(ensureBoolean(obj, QString("recommended"), false));
version->setVolatile(ensureBoolean(obj, QString("volatile"), false));
RequireSet requires, conflicts;
parseRequires(obj, &requires, "requires");
parseRequires(obj, &conflicts, "conflicts");
version->setRequires(requires, conflicts);
return version;
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}
static std::shared_ptr<Version> parseVersionInternal(const QJsonObject &obj)
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{
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VersionPtr version = parseCommonVersion(requireString(obj, "uid"), obj);
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version->setData(OneSixVersionFormat::versionFileFromJson(QJsonDocument(obj),
QString("%1/%2.json").arg(version->uid(), version->version()),
obj.contains("order")));
return version;
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}
// Version list / package
static std::shared_ptr<VersionList> parseVersionListInternal(const QJsonObject &obj)
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{
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const QString uid = requireString(obj, "uid");
const QVector<QJsonObject> versionsRaw = requireIsArrayOf<QJsonObject>(obj, "versions");
QVector<VersionPtr> versions;
versions.reserve(versionsRaw.size());
std::transform(versionsRaw.begin(), versionsRaw.end(), std::back_inserter(versions), [uid](const QJsonObject &vObj)
{
auto version = parseCommonVersion(uid, vObj);
version->setProvidesRecommendations();
return version;
});
VersionListPtr list = std::make_shared<VersionList>(uid);
list->setName(ensureString(obj, "name", QString()));
list->setVersions(versions);
return list;
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}
MetadataVersion parseFormatVersion(const QJsonObject &obj, bool required)
{
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if (!obj.contains("formatVersion"))
{
if(required)
{
return MetadataVersion::Invalid;
}
return MetadataVersion::InitialRelease;
}
if (!obj.value("formatVersion").isDouble())
{
return MetadataVersion::Invalid;
}
switch(obj.value("formatVersion").toInt())
{
case 0:
case 1:
return MetadataVersion::InitialRelease;
default:
return MetadataVersion::Invalid;
}
}
void serializeFormatVersion(QJsonObject& obj, Meta::MetadataVersion version)
{
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if(version == MetadataVersion::Invalid)
{
return;
}
obj.insert("formatVersion", int(version));
}
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void parseIndex(const QJsonObject &obj, Index *ptr)
{
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const MetadataVersion version = parseFormatVersion(obj);
switch (version)
{
case MetadataVersion::InitialRelease:
ptr->merge(parseIndexInternal(obj));
break;
case MetadataVersion::Invalid:
throw ParseException(QObject::tr("Unknown format version!"));
}
}
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void parseVersionList(const QJsonObject &obj, VersionList *ptr)
{
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const MetadataVersion version = parseFormatVersion(obj);
switch (version)
{
case MetadataVersion::InitialRelease:
ptr->merge(parseVersionListInternal(obj));
break;
case MetadataVersion::Invalid:
throw ParseException(QObject::tr("Unknown format version!"));
}
}
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void parseVersion(const QJsonObject &obj, Version *ptr)
{
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const MetadataVersion version = parseFormatVersion(obj);
switch (version)
{
case MetadataVersion::InitialRelease:
ptr->merge(parseVersionInternal(obj));
break;
case MetadataVersion::Invalid:
throw ParseException(QObject::tr("Unknown format version!"));
}
}
/*
[
{"uid":"foo", "equals":"version"}
]
*/
void parseRequires(const QJsonObject& obj, RequireSet* ptr, const char * keyName)
{
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if(obj.contains(keyName))
{
QSet<QString> requires;
auto reqArray = requireArray(obj, keyName);
auto iter = reqArray.begin();
while(iter != reqArray.end())
{
auto reqObject = requireObject(*iter);
auto uid = requireString(reqObject, "uid");
auto equals = ensureString(reqObject, "equals", QString());
auto suggests = ensureString(reqObject, "suggests", QString());
ptr->insert({uid, equals, suggests});
iter++;
}
}
}
void serializeRequires(QJsonObject& obj, RequireSet* ptr, const char * keyName)
{
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if(!ptr || ptr->empty())
{
return;
}
QJsonArray arrOut;
for(auto &iter: *ptr)
{
QJsonObject reqOut;
reqOut.insert("uid", iter.uid);
if(!iter.equalsVersion.isEmpty())
{
reqOut.insert("equals", iter.equalsVersion);
}
if(!iter.suggests.isEmpty())
{
reqOut.insert("suggests", iter.suggests);
}
arrOut.append(reqOut);
}
obj.insert(keyName, arrOut);
}
}