pollymc/logic/OneSixVersionBuilder.cpp

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/* Copyright 2013 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 "OneSixVersionBuilder.h"
#include <QList>
#include <QJsonObject>
#include <QJsonArray>
#include <QJsonDocument>
#include <QFile>
#include <QFileInfo>
#include <QMessageBox>
#include <QObject>
#include <QDir>
#include <QDebug>
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#include "VersionFinal.h"
#include "OneSixInstance.h"
#include "OneSixRule.h"
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#include "VersionFile.h"
#include "MMCJson.h"
#include "modutils.h"
#include "logger/QsLog.h"
OneSixVersionBuilder::OneSixVersionBuilder()
{
}
void OneSixVersionBuilder::build(VersionFinal *version, OneSixInstance *instance,
const bool onlyVanilla, const QStringList &external)
{
OneSixVersionBuilder builder;
builder.m_version = version;
builder.m_instance = instance;
builder.buildInternal(onlyVanilla, external);
}
void OneSixVersionBuilder::readJsonAndApplyToVersion(VersionFinal *version,
const QJsonObject &obj)
{
OneSixVersionBuilder builder;
builder.m_version = version;
builder.m_instance = 0;
builder.readJsonAndApply(obj);
}
void OneSixVersionBuilder::buildInternal(const bool onlyVanilla, const QStringList &external)
{
m_version->versionFiles.clear();
QDir root(m_instance->instanceRoot());
QDir patches(root.absoluteFilePath("patches/"));
// if we do external files, do just those.
if (!external.isEmpty())
{
int externalOrder = -1;
for (auto fileName : external)
{
QLOG_INFO() << "Reading" << fileName;
auto file =
parseJsonFile(QFileInfo(fileName), false, fileName.endsWith("pack.json"));
file->name = QFileInfo(fileName).fileName();
file->fileId = "org.multimc.external." + file->name;
file->order = (externalOrder += 1);
file->version = QString();
file->mcVersion = QString();
m_version->versionFiles.append(file);
}
}
// else, if there's custom json, we just do that.
else if (QFile::exists(root.absoluteFilePath("custom.json")))
{
QLOG_INFO() << "Reading custom.json";
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auto file = parseJsonFile(QFileInfo(root.absoluteFilePath("custom.json")), false);
file->name = "custom.json";
file->filename = "custom.json";
file->fileId = "org.multimc.custom.json";
file->order = -1;
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file->version = QString();
m_version->versionFiles.append(file);
// QObject::tr("The version descriptors of this instance are not compatible with the
// current version of MultiMC"));
// QObject::tr("Error while applying %1. Please check MultiMC-0.log for more info.")
}
// version.json -> patches/*.json -> user.json
else
do
{
// version.json
QLOG_INFO() << "Reading version.json";
auto file = parseJsonFile(QFileInfo(root.absoluteFilePath("version.json")), false);
file->name = "Minecraft";
file->fileId = "org.multimc.version.json";
file->order = -1;
file->version = m_instance->intendedVersionId();
file->mcVersion = m_instance->intendedVersionId();
m_version->versionFiles.append(file);
// QObject::tr("Error while applying %1. Please check MultiMC-0.log for more
// info.").arg(root.absoluteFilePath("version.json")));
if (onlyVanilla)
break;
// patches/
// load all, put into map for ordering, apply in the right order
QMap<int, QPair<QString, VersionFilePtr>> files;
for (auto info : patches.entryInfoList(QStringList() << "*.json", QDir::Files))
{
QLOG_INFO() << "Reading" << info.fileName();
auto file = parseJsonFile(info, true);
if (files.contains(file->order))
{
throw VersionBuildError(QObject::tr("%1 has the same order as %2").arg(
file->fileId, files[file->order].second->fileId));
}
files.insert(file->order, qMakePair(info.fileName(), file));
}
for (auto order : files.keys())
{
auto &filePair = files[order];
m_version->versionFiles.append(filePair.second);
}
} while (0);
// some final touches
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m_version->finalize();
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}
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void OneSixVersionBuilder::readJsonAndApply(const QJsonObject &obj)
{
m_version->clear();
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auto file = VersionFile::fromJson(QJsonDocument(obj), QString(), false);
// QObject::tr("Error while reading. Please check MultiMC-0.log for more info."));
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file->applyTo(m_version);
m_version->versionFiles.append(file);
// QObject::tr("Error while applying. Please check MultiMC-0.log for more info."));
// QObject::tr("The version descriptors of this instance are not compatible with the current
// version of MultiMC"));
}
VersionFilePtr OneSixVersionBuilder::parseJsonFile(const QFileInfo &fileInfo,
const bool requireOrder, bool isFTB)
{
QFile file(fileInfo.absoluteFilePath());
if (!file.open(QFile::ReadOnly))
{
throw JSONValidationError(QObject::tr("Unable to open the version file %1: %2.")
.arg(fileInfo.fileName(), file.errorString()));
}
QJsonParseError error;
QJsonDocument doc = QJsonDocument::fromJson(file.readAll(), &error);
if (error.error != QJsonParseError::NoError)
{
throw JSONValidationError(QObject::tr("Unable to process the version file %1: %2 at %3.")
.arg(fileInfo.fileName(), error.errorString())
.arg(error.offset));
}
return VersionFile::fromJson(doc, file.fileName(), requireOrder, isFTB);
// QObject::tr("Error while reading %1. Please check MultiMC-0.log for more
// info.").arg(file.fileName());
}
QMap<QString, int> OneSixVersionBuilder::readOverrideOrders(OneSixInstance *instance)
{
QMap<QString, int> out;
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// make sure the order file exists
if (!QDir(instance->instanceRoot()).exists("order.json"))
return out;
// and it can be opened
QFile orderFile(instance->instanceRoot() + "/order.json");
if (!orderFile.open(QFile::ReadOnly))
{
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QLOG_ERROR() << "Couldn't open" << orderFile.fileName()
<< " for reading:" << orderFile.errorString();
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QLOG_WARN() << "Ignoring overriden order";
return out;
}
// and it's valid JSON
QJsonParseError error;
QJsonDocument doc = QJsonDocument::fromJson(orderFile.readAll(), &error);
if (error.error != QJsonParseError::NoError)
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{
QLOG_ERROR() << "Couldn't parse" << orderFile.fileName() << ":" << error.errorString();
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QLOG_WARN() << "Ignoring overriden order";
return out;
}
// and then read it and process it if all above is true.
try
{
auto obj = MMCJson::ensureObject(doc);
for (auto it = obj.begin(); it != obj.end(); ++it)
{
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if (it.key().startsWith("org.multimc."))
{
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continue;
}
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out.insert(it.key(), MMCJson::ensureInteger(it.value()));
}
}
catch (JSONValidationError &err)
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{
QLOG_ERROR() << "Couldn't parse" << orderFile.fileName() << ": bad file format";
QLOG_WARN() << "Ignoring overriden order";
return out;
}
return out;
}
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bool OneSixVersionBuilder::writeOverrideOrders(const QMap<QString, int> &order,
OneSixInstance *instance)
{
QJsonObject obj;
for (auto it = order.cbegin(); it != order.cend(); ++it)
{
if (it.key().startsWith("org.multimc."))
{
continue;
}
obj.insert(it.key(), it.value());
}
QFile orderFile(instance->instanceRoot() + "/order.json");
if (!orderFile.open(QFile::WriteOnly))
{
QLOG_ERROR() << "Couldn't open" << orderFile.fileName()
<< "for writing:" << orderFile.errorString();
return false;
}
orderFile.write(QJsonDocument(obj).toJson(QJsonDocument::Indented));
return true;
}