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-rw-r--r--api/logic/minecraft/legacy/LegacyUpgradeTask.cpp133
1 files changed, 133 insertions, 0 deletions
diff --git a/api/logic/minecraft/legacy/LegacyUpgradeTask.cpp b/api/logic/minecraft/legacy/LegacyUpgradeTask.cpp
new file mode 100644
index 00000000..cb0572ed
--- /dev/null
+++ b/api/logic/minecraft/legacy/LegacyUpgradeTask.cpp
@@ -0,0 +1,133 @@
+#include "LegacyUpgradeTask.h"
+#include "BaseInstanceProvider.h"
+#include "settings/INISettingsObject.h"
+#include "FileSystem.h"
+#include "NullInstance.h"
+#include "pathmatcher/RegexpMatcher.h"
+#include <QtConcurrentRun>
+#include "LegacyInstance.h"
+#include "minecraft/MinecraftInstance.h"
+#include "minecraft/MinecraftProfile.h"
+
+LegacyUpgradeTask::LegacyUpgradeTask(SettingsObjectPtr settings, const QString & stagingPath, InstancePtr origInstance, const QString & newName)
+{
+ m_globalSettings = settings;
+ m_stagingPath = stagingPath;
+ m_origInstance = origInstance;
+ m_newName = newName;
+}
+
+void LegacyUpgradeTask::executeTask()
+{
+ setStatus(tr("Copying instance %1").arg(m_origInstance->name()));
+
+ FS::copy folderCopy(m_origInstance->instanceRoot(), m_stagingPath);
+ folderCopy.followSymlinks(true);
+
+ m_copyFuture = QtConcurrent::run(QThreadPool::globalInstance(), folderCopy);
+ connect(&m_copyFutureWatcher, &QFutureWatcher<bool>::finished, this, &LegacyUpgradeTask::copyFinished);
+ connect(&m_copyFutureWatcher, &QFutureWatcher<bool>::canceled, this, &LegacyUpgradeTask::copyAborted);
+ m_copyFutureWatcher.setFuture(m_copyFuture);
+}
+
+static QString decideVersion(const QString& currentVersion, const QString& intendedVersion)
+{
+ if(intendedVersion != currentVersion)
+ {
+ if(!intendedVersion.isEmpty())
+ {
+ return intendedVersion;
+ }
+ else if(!currentVersion.isEmpty())
+ {
+ return currentVersion;
+ }
+ }
+ else
+ {
+ if(!intendedVersion.isEmpty())
+ {
+ return intendedVersion;
+ }
+ }
+ // TODO: possibly add fallback to the old jar/classfile analysis method from MultiMC4
+ return QString();
+}
+
+void LegacyUpgradeTask::copyFinished()
+{
+ auto successful = m_copyFuture.result();
+ if(!successful)
+ {
+ emitFailed(tr("Instance folder copy failed."));
+ return;
+ }
+ auto legacyInst = std::dynamic_pointer_cast<LegacyInstance>(m_origInstance);
+
+ auto instanceSettings = std::make_shared<INISettingsObject>(FS::PathCombine(m_stagingPath, "instance.cfg"));
+ instanceSettings->registerSetting("InstanceType", "Legacy");
+ instanceSettings->set("InstanceType", "OneSix");
+ std::shared_ptr<MinecraftInstance> inst(new MinecraftInstance(m_globalSettings, instanceSettings, m_stagingPath));
+ inst->setName(m_newName);
+ inst->init();
+
+ QString preferredVersionNumber = decideVersion(legacyInst->currentVersionId(), legacyInst->intendedVersionId());
+ if(preferredVersionNumber.isNull())
+ {
+ // FIXME: let the user decide
+ emitFailed(tr("Could not decide Minecraft version."));
+ return;
+ }
+ inst->setComponentVersion("net.minecraft", preferredVersionNumber);
+
+ // BUG: reloadProfile should not be necessary, but setComponentVersion voids the profile created by init()!
+ inst->reloadProfile();
+ auto profile = inst->getMinecraftProfile();
+
+ if(legacyInst->shouldUseCustomBaseJar())
+ {
+ QString jarPath = legacyInst->customBaseJar();
+ qDebug() << "Base jar is custom! : " << jarPath;
+ // FIXME: handle case when the jar is unreadable?
+ // TODO: check the hash, if it's the same as the upstream jar, do not do this
+ profile->installCustomJar(jarPath);
+ }
+
+ auto jarMods = legacyInst->getJarMods();
+ for(auto & jarMod: jarMods)
+ {
+ QString modPath = jarMod.filename().absoluteFilePath();
+ qDebug() << "jarMod: " << modPath;
+ profile->installJarMods({modPath});
+ }
+
+ // remove all the extra garbage we no longer need
+ auto removeAll = [&](const QString &root, const QStringList &things)
+ {
+ for(auto &thing : things)
+ {
+ auto removePath = FS::PathCombine(root, thing);
+ QFileInfo stat(removePath);
+ if(stat.isDir())
+ {
+ FS::deletePath(removePath);
+ }
+ else
+ {
+ QFile::remove(removePath);
+ }
+ }
+ };
+ QStringList rootRemovables = {"modlist", "version", "instMods"};
+ QStringList mcRemovables = {"bin", "MultiMCLauncher.jar", "icon.png"};
+ removeAll(inst->instanceRoot(), rootRemovables);
+ removeAll(inst->minecraftRoot(), mcRemovables);
+ emitSucceeded();
+}
+
+void LegacyUpgradeTask::copyAborted()
+{
+ emitFailed(tr("Instance folder copy has been aborted."));
+ return;
+}
+