diff options
Diffstat (limited to 'api/logic/FolderInstanceProvider.cpp')
| -rw-r--r-- | api/logic/FolderInstanceProvider.cpp | 726 |
1 files changed, 363 insertions, 363 deletions
diff --git a/api/logic/FolderInstanceProvider.cpp b/api/logic/FolderInstanceProvider.cpp index cedba408..4f89e5b7 100644 --- a/api/logic/FolderInstanceProvider.cpp +++ b/api/logic/FolderInstanceProvider.cpp @@ -18,322 +18,322 @@ const static int GROUP_FILE_FORMAT_VERSION = 1; struct WatchLock { - WatchLock(QFileSystemWatcher * watcher, const QString& instDir) - : m_watcher(watcher), m_instDir(instDir) - { - m_watcher->removePath(m_instDir); - } - ~WatchLock() - { - m_watcher->addPath(m_instDir); - } - QFileSystemWatcher * m_watcher; - QString m_instDir; + WatchLock(QFileSystemWatcher * watcher, const QString& instDir) + : m_watcher(watcher), m_instDir(instDir) + { + m_watcher->removePath(m_instDir); + } + ~WatchLock() + { + m_watcher->addPath(m_instDir); + } + QFileSystemWatcher * m_watcher; + QString m_instDir; }; FolderInstanceProvider::FolderInstanceProvider(SettingsObjectPtr settings, const QString& instDir) - : BaseInstanceProvider(settings) + : BaseInstanceProvider(settings) { - // Create aand normalize path - if (!QDir::current().exists(instDir)) - { - QDir::current().mkpath(instDir); - } - // NOTE: canonicalPath requires the path to exist. Do not move this above the creation block! - m_instDir = QDir(instDir).canonicalPath(); - m_watcher = new QFileSystemWatcher(this); - connect(m_watcher, &QFileSystemWatcher::directoryChanged, this, &FolderInstanceProvider::instanceDirContentsChanged); - m_watcher->addPath(m_instDir); + // Create aand normalize path + if (!QDir::current().exists(instDir)) + { + QDir::current().mkpath(instDir); + } + // NOTE: canonicalPath requires the path to exist. Do not move this above the creation block! + m_instDir = QDir(instDir).canonicalPath(); + m_watcher = new QFileSystemWatcher(this); + connect(m_watcher, &QFileSystemWatcher::directoryChanged, this, &FolderInstanceProvider::instanceDirContentsChanged); + m_watcher->addPath(m_instDir); } QList< InstanceId > FolderInstanceProvider::discoverInstances() { - QList<InstanceId> out; - QDirIterator iter(m_instDir, QDir::Dirs | QDir::NoDot | QDir::NoDotDot | QDir::Readable | QDir::Hidden, QDirIterator::FollowSymlinks); - while (iter.hasNext()) - { - QString subDir = iter.next(); - QFileInfo dirInfo(subDir); - if (!QFileInfo(FS::PathCombine(subDir, "instance.cfg")).exists()) - continue; - // if it is a symlink, ignore it if it goes to the instance folder - if(dirInfo.isSymLink()) - { - QFileInfo targetInfo(dirInfo.symLinkTarget()); - QFileInfo instDirInfo(m_instDir); - if(targetInfo.canonicalPath() == instDirInfo.canonicalFilePath()) - { - qDebug() << "Ignoring symlink" << subDir << "that leads into the instances folder"; - continue; - } - } - auto id = dirInfo.fileName(); - out.append(id); - qDebug() << "Found instance ID" << id; - } - return out; + QList<InstanceId> out; + QDirIterator iter(m_instDir, QDir::Dirs | QDir::NoDot | QDir::NoDotDot | QDir::Readable | QDir::Hidden, QDirIterator::FollowSymlinks); + while (iter.hasNext()) + { + QString subDir = iter.next(); + QFileInfo dirInfo(subDir); + if (!QFileInfo(FS::PathCombine(subDir, "instance.cfg")).exists()) + continue; + // if it is a symlink, ignore it if it goes to the instance folder + if(dirInfo.isSymLink()) + { + QFileInfo targetInfo(dirInfo.symLinkTarget()); + QFileInfo instDirInfo(m_instDir); + if(targetInfo.canonicalPath() == instDirInfo.canonicalFilePath()) + { + qDebug() << "Ignoring symlink" << subDir << "that leads into the instances folder"; + continue; + } + } + auto id = dirInfo.fileName(); + out.append(id); + qDebug() << "Found instance ID" << id; + } + return out; } InstancePtr FolderInstanceProvider::loadInstance(const InstanceId& id) { - if(!m_groupsLoaded) - { - loadGroupList(); - } - - auto instanceRoot = FS::PathCombine(m_instDir, id); - auto instanceSettings = std::make_shared<INISettingsObject>(FS::PathCombine(instanceRoot, "instance.cfg")); - InstancePtr inst; - - instanceSettings->registerSetting("InstanceType", "Legacy"); - - QString inst_type = instanceSettings->get("InstanceType").toString(); - - if (inst_type == "OneSix" || inst_type == "Nostalgia") - { - inst.reset(new MinecraftInstance(m_globalSettings, instanceSettings, instanceRoot)); - } - else if (inst_type == "Legacy") - { - inst.reset(new LegacyInstance(m_globalSettings, instanceSettings, instanceRoot)); - } - else - { - inst.reset(new NullInstance(m_globalSettings, instanceSettings, instanceRoot)); - } - inst->init(); - inst->setProvider(this); - auto iter = groupMap.find(id); - if (iter != groupMap.end()) - { - inst->setGroupInitial((*iter)); - } - connect(inst.get(), &BaseInstance::groupChanged, this, &FolderInstanceProvider::groupChanged); - qDebug() << "Loaded instance " << inst->name() << " from " << inst->instanceRoot(); - return inst; + if(!m_groupsLoaded) + { + loadGroupList(); + } + + auto instanceRoot = FS::PathCombine(m_instDir, id); + auto instanceSettings = std::make_shared<INISettingsObject>(FS::PathCombine(instanceRoot, "instance.cfg")); + InstancePtr inst; + + instanceSettings->registerSetting("InstanceType", "Legacy"); + + QString inst_type = instanceSettings->get("InstanceType").toString(); + + if (inst_type == "OneSix" || inst_type == "Nostalgia") + { + inst.reset(new MinecraftInstance(m_globalSettings, instanceSettings, instanceRoot)); + } + else if (inst_type == "Legacy") + { + inst.reset(new LegacyInstance(m_globalSettings, instanceSettings, instanceRoot)); + } + else + { + inst.reset(new NullInstance(m_globalSettings, instanceSettings, instanceRoot)); + } + inst->init(); + inst->setProvider(this); + auto iter = groupMap.find(id); + if (iter != groupMap.end()) + { + inst->setGroupInitial((*iter)); + } + connect(inst.get(), &BaseInstance::groupChanged, this, &FolderInstanceProvider::groupChanged); + qDebug() << "Loaded instance " << inst->name() << " from " << inst->instanceRoot(); + return inst; } void FolderInstanceProvider::saveGroupList() { - WatchLock foo(m_watcher, m_instDir); - QString groupFileName = m_instDir + "/instgroups.json"; - QMap<QString, QSet<QString>> reverseGroupMap; - for (auto iter = groupMap.begin(); iter != groupMap.end(); iter++) - { - QString id = iter.key(); - QString group = iter.value(); - if (group.isEmpty()) - continue; - - if (!reverseGroupMap.count(group)) - { - QSet<QString> set; - set.insert(id); - reverseGroupMap[group] = set; - } - else - { - QSet<QString> &set = reverseGroupMap[group]; - set.insert(id); - } - } - QJsonObject toplevel; - toplevel.insert("formatVersion", QJsonValue(QString("1"))); - QJsonObject groupsArr; - for (auto iter = reverseGroupMap.begin(); iter != reverseGroupMap.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 (const FS::FileSystemException &e) - { - qCritical() << "Failed to write instance group file :" << e.cause(); - } + WatchLock foo(m_watcher, m_instDir); + QString groupFileName = m_instDir + "/instgroups.json"; + QMap<QString, QSet<QString>> reverseGroupMap; + for (auto iter = groupMap.begin(); iter != groupMap.end(); iter++) + { + QString id = iter.key(); + QString group = iter.value(); + if (group.isEmpty()) + continue; + + if (!reverseGroupMap.count(group)) + { + QSet<QString> set; + set.insert(id); + reverseGroupMap[group] = set; + } + else + { + QSet<QString> &set = reverseGroupMap[group]; + set.insert(id); + } + } + QJsonObject toplevel; + toplevel.insert("formatVersion", QJsonValue(QString("1"))); + QJsonObject groupsArr; + for (auto iter = reverseGroupMap.begin(); iter != reverseGroupMap.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 (const FS::FileSystemException &e) + { + qCritical() << "Failed to write instance group file :" << e.cause(); + } } void FolderInstanceProvider::loadGroupList() { - QSet<QString> groupSet; - - 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 (const 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; - } - - groupMap.clear(); - - // 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 - groupSet.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; - } - } - m_groupsLoaded = true; - emit groupsChanged(groupSet); + QSet<QString> groupSet; + + 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 (const 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; + } + + groupMap.clear(); + + // 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 + groupSet.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; + } + } + m_groupsLoaded = true; + emit groupsChanged(groupSet); } void FolderInstanceProvider::groupChanged() { - // save the groups. save all of them. - auto instance = (BaseInstance *) QObject::sender(); - auto id = instance->id(); - groupMap[id] = instance->group(); - emit groupsChanged({instance->group()}); - saveGroupList(); + // save the groups. save all of them. + auto instance = (BaseInstance *) QObject::sender(); + auto id = instance->id(); + groupMap[id] = instance->group(); + emit groupsChanged({instance->group()}); + saveGroupList(); } void FolderInstanceProvider::instanceDirContentsChanged(const QString& path) { - Q_UNUSED(path); - emit instancesChanged(); + Q_UNUSED(path); + emit instancesChanged(); } void FolderInstanceProvider::on_InstFolderChanged(const Setting &setting, QVariant value) { - QString newInstDir = QDir(value.toString()).canonicalPath(); - if(newInstDir != m_instDir) - { - if(m_groupsLoaded) - { - saveGroupList(); - } - m_instDir = newInstDir; - m_groupsLoaded = false; - emit instancesChanged(); - } + QString newInstDir = QDir(value.toString()).canonicalPath(); + if(newInstDir != m_instDir) + { + if(m_groupsLoaded) + { + saveGroupList(); + } + m_instDir = newInstDir; + m_groupsLoaded = false; + emit instancesChanged(); + } } template <typename T> static void clamp(T& current, T min, T max) { - if (current < min) - { - current = min; - } - else if(current > max) - { - current = max; - } + if (current < min) + { + current = min; + } + else if(current > max) + { + current = max; + } } // List of numbers from min to max. Next is exponent times bigger than previous. class ExponentialSeries { public: - ExponentialSeries(unsigned min, unsigned max, unsigned exponent = 2) - { - m_current = m_min = min; - m_max = max; - m_exponent = exponent; - } - void reset() - { - m_current = m_min; - } - unsigned operator()() - { - unsigned retval = m_current; - m_current *= m_exponent; - clamp(m_current, m_min, m_max); - return retval; - } - unsigned m_current; - unsigned m_min; - unsigned m_max; - unsigned m_exponent; + ExponentialSeries(unsigned min, unsigned max, unsigned exponent = 2) + { + m_current = m_min = min; + m_max = max; + m_exponent = exponent; + } + void reset() + { + m_current = m_min; + } + unsigned operator()() + { + unsigned retval = m_current; + m_current *= m_exponent; + clamp(m_current, m_min, m_max); + return retval; + } + unsigned m_current; + unsigned m_min; + unsigned m_max; + unsigned m_exponent; }; /* @@ -344,121 +344,121 @@ public: class FolderInstanceStaging : public Task { Q_OBJECT - const unsigned minBackoff = 1; - const unsigned maxBackoff = 16; + const unsigned minBackoff = 1; + const unsigned maxBackoff = 16; public: - FolderInstanceStaging ( - FolderInstanceProvider * parent, - Task * child, - const QString & stagingPath, - const QString& instanceName, - const QString& groupName ) - : backoff(minBackoff, maxBackoff) - { - m_parent = parent; - m_child.reset(child); - connect(child, &Task::succeeded, this, &FolderInstanceStaging::childSucceded); - connect(child, &Task::failed, this, &FolderInstanceStaging::childFailed); - connect(child, &Task::status, this, &FolderInstanceStaging::setStatus); - connect(child, &Task::progress, this, &FolderInstanceStaging::setProgress); - m_instanceName = instanceName; - m_groupName = groupName; - m_stagingPath = stagingPath; - m_backoffTimer.setSingleShot(true); - connect(&m_backoffTimer, &QTimer::timeout, this, &FolderInstanceStaging::childSucceded); - } - - virtual ~FolderInstanceStaging() {}; + FolderInstanceStaging ( + FolderInstanceProvider * parent, + Task * child, + const QString & stagingPath, + const QString& instanceName, + const QString& groupName ) + : backoff(minBackoff, maxBackoff) + { + m_parent = parent; + m_child.reset(child); + connect(child, &Task::succeeded, this, &FolderInstanceStaging::childSucceded); + connect(child, &Task::failed, this, &FolderInstanceStaging::childFailed); + connect(child, &Task::status, this, &FolderInstanceStaging::setStatus); + connect(child, &Task::progress, this, &FolderInstanceStaging::setProgress); + m_instanceName = instanceName; + m_groupName = groupName; + m_stagingPath = stagingPath; + m_backoffTimer.setSingleShot(true); + connect(&m_backoffTimer, &QTimer::timeout, this, &FolderInstanceStaging::childSucceded); + } + + virtual ~FolderInstanceStaging() {}; protected: - virtual void executeTask() override - { - m_child->start(); - } - QStringList warnings() const override - { - return m_child->warnings(); - } + virtual void executeTask() override + { + m_child->start(); + } + QStringList warnings() const override + { + return m_child->warnings(); + } private slots: - void childSucceded() - { - unsigned sleepTime = backoff(); - if(m_parent->commitStagedInstance(m_stagingPath, m_instanceName, m_groupName)) - { - emitSucceeded(); - return; - } - // we actually failed, retry? - if(sleepTime == maxBackoff) - { - emitFailed(tr("Failed to commit instance, even after multiple retries. It is being blocked by something.")); - return; - } - qDebug() << "Failed to commit instance" << m_instanceName << "Initiating backoff:" << sleepTime; - m_backoffTimer.start(sleepTime * 500); - } - void childFailed(const QString & reason) - { - m_parent->destroyStagingPath(m_stagingPath); - emitFailed(reason); - } + void childSucceded() + { + unsigned sleepTime = backoff(); + if(m_parent->commitStagedInstance(m_stagingPath, m_instanceName, m_groupName)) + { + emitSucceeded(); + return; + } + // we actually failed, retry? + if(sleepTime == maxBackoff) + { + emitFailed(tr("Failed to commit instance, even after multiple retries. It is being blocked by something.")); + return; + } + qDebug() << "Failed to commit instance" << m_instanceName << "Initiating backoff:" << sleepTime; + m_backoffTimer.start(sleepTime * 500); + } + void childFailed(const QString & reason) + { + m_parent->destroyStagingPath(m_stagingPath); + emitFailed(reason); + } private: - ExponentialSeries backoff; - QString m_stagingPath; - FolderInstanceProvider * m_parent; - unique_qobject_ptr<Task> m_child; - QString m_instanceName; - QString m_groupName; - QTimer m_backoffTimer; + ExponentialSeries backoff; + QString m_stagingPath; + FolderInstanceProvider * m_parent; + unique_qobject_ptr<Task> m_child; + QString m_instanceName; + QString m_groupName; + QTimer m_backoffTimer; }; #include "InstanceTask.h" Task * FolderInstanceProvider::wrapInstanceTask(InstanceTask * task) { - auto stagingPath = getStagedInstancePath(); - task->setStagingPath(stagingPath); - task->setParentSettings(m_globalSettings); - return new FolderInstanceStaging(this, task, stagingPath, task->name(), task->group()); + auto stagingPath = getStagedInstancePath(); + task->setStagingPath(stagingPath); + task->setParentSettings(m_globalSettings); + return new FolderInstanceStaging(this, task, stagingPath, task->name(), task->group()); } QString FolderInstanceProvider::getStagedInstancePath() { - QString key = QUuid::createUuid().toString(); - QString relPath = FS::PathCombine("_MMC_TEMP/" , key); - QDir rootPath(m_instDir); - auto path = FS::PathCombine(m_instDir, relPath); - if(!rootPath.mkpath(relPath)) - { - return QString(); - } - return path; + QString key = QUuid::createUuid().toString(); + QString relPath = FS::PathCombine("_MMC_TEMP/" , key); + QDir rootPath(m_instDir); + auto path = FS::PathCombine(m_instDir, relPath); + if(!rootPath.mkpath(relPath)) + { + return QString(); + } + return path; } bool FolderInstanceProvider::commitStagedInstance(const QString& path, const QString& instanceName, const QString& groupName) { - QDir dir; - QString instID = FS::DirNameFromString(instanceName, m_instDir); - { - WatchLock lock(m_watcher, m_instDir); - QString destination = FS::PathCombine(m_instDir, instID); - if(!dir.rename(path, destination)) - { - qWarning() << "Failed to move" << path << "to" << destination; - return false; - } - groupMap[instID] = groupName; - emit groupsChanged({groupName}); - emit instancesChanged(); - } - saveGroupList(); - return true; + QDir dir; + QString instID = FS::DirNameFromString(instanceName, m_instDir); + { + WatchLock lock(m_watcher, m_instDir); + QString destination = FS::PathCombine(m_instDir, instID); + if(!dir.rename(path, destination)) + { + qWarning() << "Failed to move" << path << "to" << destination; + return false; + } + groupMap[instID] = groupName; + emit groupsChanged({groupName}); + emit instancesChanged(); + } + saveGroupList(); + return true; } bool FolderInstanceProvider::destroyStagingPath(const QString& keyPath) { - return FS::deletePath(keyPath); + return FS::deletePath(keyPath); } #include "FolderInstanceProvider.moc" |