diff options
Diffstat (limited to 'api/logic/InstanceList.cpp')
-rw-r--r-- | api/logic/InstanceList.cpp | 580 |
1 files changed, 580 insertions, 0 deletions
diff --git a/api/logic/InstanceList.cpp b/api/logic/InstanceList.cpp new file mode 100644 index 00000000..783df660 --- /dev/null +++ b/api/logic/InstanceList.cpp @@ -0,0 +1,580 @@ +/* Copyright 2013-2015 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 <QDir> +#include <QSet> +#include <QFile> +#include <QDirIterator> +#include <QThread> +#include <QTextStream> +#include <QJsonDocument> +#include <QJsonObject> +#include <QJsonArray> +#include <QXmlStreamReader> +#include <QRegularExpression> +#include <QDebug> + +#include "InstanceList.h" +#include "BaseInstance.h" + +//FIXME: this really doesn't belong *here* +#include "minecraft/onesix/OneSixInstance.h" +#include "minecraft/legacy/LegacyInstance.h" +#include "minecraft/ftb/FTBPlugin.h" +#include "minecraft/MinecraftVersion.h" +#include "settings/INISettingsObject.h" +#include "NullInstance.h" +#include "FileSystem.h" +#include "pathmatcher/RegexpMatcher.h" + +const static int GROUP_FILE_FORMAT_VERSION = 1; + +InstanceList::InstanceList(SettingsObjectPtr globalSettings, const QString &instDir, QObject *parent) + : QAbstractListModel(parent), m_instDir(instDir) +{ + m_globalSettings = globalSettings; + if (!QDir::current().exists(m_instDir)) + { + QDir::current().mkpath(m_instDir); + } +} + +InstanceList::~InstanceList() +{ +} + +int InstanceList::rowCount(const QModelIndex &parent) const +{ + Q_UNUSED(parent); + return m_instances.count(); +} + +QModelIndex InstanceList::index(int row, int column, const QModelIndex &parent) const +{ + Q_UNUSED(parent); + if (row < 0 || row >= m_instances.size()) + return QModelIndex(); + return createIndex(row, column, (void *)m_instances.at(row).get()); +} + +QVariant InstanceList::data(const QModelIndex &index, int role) const +{ + if (!index.isValid()) + { + return QVariant(); + } + BaseInstance *pdata = static_cast<BaseInstance *>(index.internalPointer()); + switch (role) + { + case InstancePointerRole: + { + QVariant v = qVariantFromValue((void *)pdata); + return v; + } + case InstanceIDRole: + { + return pdata->id(); + } + case Qt::DisplayRole: + { + return pdata->name(); + } + case Qt::ToolTipRole: + { + return pdata->instanceRoot(); + } + case Qt::DecorationRole: + { + return pdata->iconKey(); + } + // HACK: see GroupView.h in gui! + case GroupRole: + { + return pdata->group(); + } + default: + break; + } + return QVariant(); +} + +Qt::ItemFlags InstanceList::flags(const QModelIndex &index) const +{ + Qt::ItemFlags f; + if (index.isValid()) + { + f |= (Qt::ItemIsEnabled | Qt::ItemIsSelectable); + } + return f; +} + +void InstanceList::groupChanged() +{ + // save the groups. save all of them. + saveGroupList(); +} + +QStringList InstanceList::getGroups() +{ + return m_groups.toList(); +} + +void InstanceList::suspendGroupSaving() +{ + suspendedGroupSave = true; +} + +void InstanceList::resumeGroupSaving() +{ + if(suspendedGroupSave) + { + suspendedGroupSave = false; + if(queuedGroupSave) + { + saveGroupList(); + } + } +} + +void InstanceList::deleteGroup(const QString& name) +{ + for(auto & instance: m_instances) + { + auto instGroupName = instance->group(); + if(instGroupName == name) + { + instance->setGroupPost(QString()); + } + } +} + +void InstanceList::saveGroupList() +{ + if(suspendedGroupSave) + { + queuedGroupSave = true; + return; + } + + QString groupFileName = m_instDir + "/instgroups.json"; + QMap<QString, QSet<QString>> groupMap; + for (auto instance : m_instances) + { + QString id = instance->id(); + QString group = instance->group(); + if (group.isEmpty()) + continue; + + // keep a list/set of groups for choosing + m_groups.insert(group); + + if (!groupMap.count(group)) + { + QSet<QString> set; + set.insert(id); + groupMap[group] = set; + } + else + { + QSet<QString> &set = groupMap[group]; + set.insert(id); + } + } + QJsonObject toplevel; + toplevel.insert("formatVersion", QJsonValue(QString("1"))); + QJsonObject groupsArr; + for (auto iter = groupMap.begin(); iter != groupMap.end(); iter++) + { + auto list = iter.value(); + auto name = iter.key(); + QJsonObject groupObj; + QJsonArray instanceArr; + groupObj.insert("hidden", QJsonValue(QString("false"))); + for (auto item : list) + { + instanceArr.append(QJsonValue(item)); + } + groupObj.insert("instances", instanceArr); + groupsArr.insert(name, groupObj); + } + toplevel.insert("groups", groupsArr); + QJsonDocument doc(toplevel); + try + { + FS::write(groupFileName, doc.toJson()); + } + catch(FS::FileSystemException & e) + { + qCritical() << "Failed to write instance group file :" << e.cause(); + } +} + +void InstanceList::loadGroupList(QMap<QString, QString> &groupMap) +{ + QString groupFileName = m_instDir + "/instgroups.json"; + + // if there's no group file, fail + if (!QFileInfo(groupFileName).exists()) + return; + + QByteArray jsonData; + try + { + jsonData = FS::read(groupFileName); + } + catch (FS::FileSystemException & e) + { + qCritical() << "Failed to read instance group file :" << e.cause(); + return; + } + + QJsonParseError error; + QJsonDocument jsonDoc = QJsonDocument::fromJson(jsonData, &error); + + // if the json was bad, fail + if (error.error != QJsonParseError::NoError) + { + qCritical() << QString("Failed to parse instance group file: %1 at offset %2") + .arg(error.errorString(), QString::number(error.offset)) + .toUtf8(); + return; + } + + // if the root of the json wasn't an object, fail + if (!jsonDoc.isObject()) + { + qWarning() << "Invalid group file. Root entry should be an object."; + return; + } + + QJsonObject rootObj = jsonDoc.object(); + + // Make sure the format version matches, otherwise fail. + if (rootObj.value("formatVersion").toVariant().toInt() != GROUP_FILE_FORMAT_VERSION) + return; + + // Get the groups. if it's not an object, fail + if (!rootObj.value("groups").isObject()) + { + qWarning() << "Invalid group list JSON: 'groups' should be an object."; + return; + } + + // Iterate through all the groups. + QJsonObject groupMapping = rootObj.value("groups").toObject(); + for (QJsonObject::iterator iter = groupMapping.begin(); iter != groupMapping.end(); iter++) + { + QString groupName = iter.key(); + + // If not an object, complain and skip to the next one. + if (!iter.value().isObject()) + { + qWarning() << QString("Group '%1' in the group list should " + "be an object.") + .arg(groupName) + .toUtf8(); + continue; + } + + QJsonObject groupObj = iter.value().toObject(); + if (!groupObj.value("instances").isArray()) + { + qWarning() << QString("Group '%1' in the group list is invalid. " + "It should contain an array " + "called 'instances'.") + .arg(groupName) + .toUtf8(); + continue; + } + + // keep a list/set of groups for choosing + m_groups.insert(groupName); + + // Iterate through the list of instances in the group. + QJsonArray instancesArray = groupObj.value("instances").toArray(); + + for (QJsonArray::iterator iter2 = instancesArray.begin(); iter2 != instancesArray.end(); + iter2++) + { + groupMap[(*iter2).toString()] = groupName; + } + } +} + +InstanceList::InstListError InstanceList::loadList() +{ + // load the instance groups + QMap<QString, QString> groupMap; + loadGroupList(groupMap); + + QList<InstancePtr> tempList; + { + QDirIterator iter(m_instDir, QDir::Dirs | QDir::NoDot | QDir::NoDotDot | QDir::Readable, + QDirIterator::FollowSymlinks); + while (iter.hasNext()) + { + QString subDir = iter.next(); + if (!QFileInfo(FS::PathCombine(subDir, "instance.cfg")).exists()) + continue; + qDebug() << "Loading MultiMC instance from " << subDir; + InstancePtr instPtr; + auto error = loadInstance(instPtr, subDir); + if(!continueProcessInstance(instPtr, error, subDir, groupMap)) + continue; + tempList.append(instPtr); + } + } + + // FIXME: generalize + FTBPlugin::loadInstances(m_globalSettings, groupMap, tempList); + + beginResetModel(); + m_instances.clear(); + for(auto inst: tempList) + { + inst->setParent(this); + connect(inst.get(), SIGNAL(propertiesChanged(BaseInstance *)), this, + SLOT(propertiesChanged(BaseInstance *))); + connect(inst.get(), SIGNAL(groupChanged()), this, SLOT(groupChanged())); + connect(inst.get(), SIGNAL(nuked(BaseInstance *)), this, + SLOT(instanceNuked(BaseInstance *))); + m_instances.append(inst); + } + endResetModel(); + emit dataIsInvalid(); + return NoError; +} + +/// Clear all instances. Triggers notifications. +void InstanceList::clear() +{ + beginResetModel(); + saveGroupList(); + m_instances.clear(); + endResetModel(); + emit dataIsInvalid(); +} + +void InstanceList::on_InstFolderChanged(const Setting &setting, QVariant value) +{ + m_instDir = value.toString(); + loadList(); +} + +/// Add an instance. Triggers notifications, returns the new index +int InstanceList::add(InstancePtr t) +{ + beginInsertRows(QModelIndex(), m_instances.size(), m_instances.size()); + m_instances.append(t); + t->setParent(this); + connect(t.get(), SIGNAL(propertiesChanged(BaseInstance *)), this, + SLOT(propertiesChanged(BaseInstance *))); + connect(t.get(), SIGNAL(groupChanged()), this, SLOT(groupChanged())); + connect(t.get(), SIGNAL(nuked(BaseInstance *)), this, SLOT(instanceNuked(BaseInstance *))); + endInsertRows(); + return count() - 1; +} + +InstancePtr InstanceList::getInstanceById(QString instId) const +{ + if(instId.isEmpty()) + return InstancePtr(); + for(auto & inst: m_instances) + { + if (inst->id() == instId) + { + return inst; + } + } + return InstancePtr(); +} + +QModelIndex InstanceList::getInstanceIndexById(const QString &id) const +{ + return index(getInstIndex(getInstanceById(id).get())); +} + +int InstanceList::getInstIndex(BaseInstance *inst) const +{ + int count = m_instances.count(); + for (int i = 0; i < count; i++) + { + if (inst == m_instances[i].get()) + { + return i; + } + } + return -1; +} + +bool InstanceList::continueProcessInstance(InstancePtr instPtr, const int error, + const QDir &dir, QMap<QString, QString> &groupMap) +{ + if (error != InstanceList::NoLoadError && error != InstanceList::NotAnInstance) + { + QString errorMsg = QString("Failed to load instance %1: ") + .arg(QFileInfo(dir.absolutePath()).baseName()) + .toUtf8(); + + switch (error) + { + default: + errorMsg += QString("Unknown instance loader error %1").arg(error); + break; + } + qCritical() << errorMsg.toUtf8(); + return false; + } + else if (!instPtr) + { + qCritical() << QString("Error loading instance %1. Instance loader returned null.") + .arg(QFileInfo(dir.absolutePath()).baseName()) + .toUtf8(); + return false; + } + else + { + auto iter = groupMap.find(instPtr->id()); + if (iter != groupMap.end()) + { + instPtr->setGroupInitial((*iter)); + } + qDebug() << "Loaded instance " << instPtr->name() << " from " << dir.absolutePath(); + return true; + } +} + +InstanceList::InstLoadError +InstanceList::loadInstance(InstancePtr &inst, const QString &instDir) +{ + auto instanceSettings = std::make_shared<INISettingsObject>(FS::PathCombine(instDir, "instance.cfg")); + + instanceSettings->registerSetting("InstanceType", "Legacy"); + + QString inst_type = instanceSettings->get("InstanceType").toString(); + + // FIXME: replace with a map lookup, where instance classes register their types + if (inst_type == "OneSix" || inst_type == "Nostalgia") + { + inst.reset(new OneSixInstance(m_globalSettings, instanceSettings, instDir)); + } + else if (inst_type == "Legacy") + { + inst.reset(new LegacyInstance(m_globalSettings, instanceSettings, instDir)); + } + else + { + inst.reset(new NullInstance(m_globalSettings, instanceSettings, instDir)); + } + inst->init(); + return NoLoadError; +} + +InstanceList::InstCreateError +InstanceList::createInstance(InstancePtr &inst, BaseVersionPtr version, const QString &instDir) +{ + QDir rootDir(instDir); + + qDebug() << instDir.toUtf8(); + if (!rootDir.exists() && !rootDir.mkpath(".")) + { + qCritical() << "Can't create instance folder" << instDir; + return InstanceList::CantCreateDir; + } + + if (!version) + { + qCritical() << "Can't create instance for non-existing MC version"; + return InstanceList::NoSuchVersion; + } + + auto instanceSettings = std::make_shared<INISettingsObject>(FS::PathCombine(instDir, "instance.cfg")); + instanceSettings->registerSetting("InstanceType", "Legacy"); + + auto minecraftVersion = std::dynamic_pointer_cast<MinecraftVersion>(version); + if(minecraftVersion) + { + auto mcVer = std::dynamic_pointer_cast<MinecraftVersion>(version); + instanceSettings->set("InstanceType", "OneSix"); + inst.reset(new OneSixInstance(m_globalSettings, instanceSettings, instDir)); + inst->setIntendedVersionId(version->descriptor()); + inst->init(); + return InstanceList::NoCreateError; + } + return InstanceList::NoSuchVersion; +} + +InstanceList::InstCreateError +InstanceList::copyInstance(InstancePtr &newInstance, InstancePtr &oldInstance, const QString &instDir, bool copySaves) +{ + QDir rootDir(instDir); + std::unique_ptr<IPathMatcher> matcher; + if(!copySaves) + { + auto matcherReal = new RegexpMatcher("[.]?minecraft/saves"); + matcherReal->caseSensitive(false); + matcher.reset(matcherReal); + } + + qDebug() << instDir.toUtf8(); + FS::copy folderCopy(oldInstance->instanceRoot(), instDir); + folderCopy.followSymlinks(false).blacklist(matcher.get()); + if (!folderCopy()) + { + FS::deletePath(instDir); + return InstanceList::CantCreateDir; + } + + INISettingsObject settings_obj(FS::PathCombine(instDir, "instance.cfg")); + settings_obj.registerSetting("InstanceType", "Legacy"); + QString inst_type = settings_obj.get("InstanceType").toString(); + + oldInstance->copy(instDir); + + auto error = loadInstance(newInstance, instDir); + + switch (error) + { + case NoLoadError: + return NoCreateError; + case NotAnInstance: + rootDir.removeRecursively(); + return CantCreateDir; + default: + case UnknownLoadError: + rootDir.removeRecursively(); + return UnknownCreateError; + } +} + +void InstanceList::instanceNuked(BaseInstance *inst) +{ + int i = getInstIndex(inst); + if (i != -1) + { + beginRemoveRows(QModelIndex(), i, i); + m_instances.removeAt(i); + endRemoveRows(); + } +} + +void InstanceList::propertiesChanged(BaseInstance *inst) +{ + int i = getInstIndex(inst); + if (i != -1) + { + emit dataChanged(index(i), index(i)); + } +} |