Reorganize logic code.

1 files changed, 249 insertions, 0 deletions

diff --git a/logic/minecraft/OneSixVersionBuilder.cpp b/logic/minecraft/OneSixVersionBuilder.cpp
new file mode 100644
index 00000000..da8f956c
--- /dev/null
+++ b/logic/minecraft/OneSixVersionBuilder.cpp
@@ -0,0 +1,249 @@
+/* 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 <QList>
+#include <QJsonObject>
+#include <QJsonArray>
+#include <QJsonDocument>
+#include <QFile>
+#include <QFileInfo>
+#include <QMessageBox>
+#include <QObject>
+#include <QDir>
+#include <QDebug>
+#include <modutils.h>
+
+#include "logic/minecraft/OneSixVersionBuilder.h"
+#include "logic/minecraft/VersionFinal.h"
+#include "logic/minecraft/OneSixRule.h"
+#include "logic/minecraft/VersionFile.h"
+
+#include "logic/OneSixInstance.h"
+#include "logic/MMCJson.h"
+
+#include "logger/QsLog.h"
+
+OneSixVersionBuilder::OneSixVersionBuilder()
+{
+}
+
+void OneSixVersionBuilder::build(VersionFinal *version, OneSixInstance *instance, const QStringList &external)
+{
+	OneSixVersionBuilder builder;
+	builder.m_version = version;
+	builder.m_instance = instance;
+	builder.buildInternal(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 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";
+		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;
+		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")));
+
+			// 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
+	m_version->finalize();
+}
+
+
+
+void OneSixVersionBuilder::readJsonAndApply(const QJsonObject &obj)
+{
+	m_version->clear();
+
+	auto file = VersionFile::fromJson(QJsonDocument(obj), QString(), false);
+	// QObject::tr("Error while reading. Please check MultiMC-0.log for more info."));
+
+	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;
+
+	// 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))
+	{
+		QLOG_ERROR() << "Couldn't open" << orderFile.fileName()
+					 << " for reading:" << orderFile.errorString();
+		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)
+	{
+		QLOG_ERROR() << "Couldn't parse" << orderFile.fileName() << ":" << error.errorString();
+		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)
+		{
+			if (it.key().startsWith("org.multimc."))
+			{
+				continue;
+			}
+			out.insert(it.key(), MMCJson::ensureInteger(it.value()));
+		}
+	}
+	catch (JSONValidationError &err)
+	{
+		QLOG_ERROR() << "Couldn't parse" << orderFile.fileName() << ": bad file format";
+		QLOG_WARN() << "Ignoring overriden order";
+		return out;
+	}
+	return out;
+}
+
+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;
+}