1 files changed, 90 insertions, 0 deletions
diff --git a/api/logic/minecraft/update/LibrariesTask.cpp b/api/logic/minecraft/update/LibrariesTask.cpp
new file mode 100644
index 00000000..0bec61c1
--- /dev/null
+++ b/api/logic/minecraft/update/LibrariesTask.cpp
@@ -0,0 +1,90 @@
+#include "Env.h"
+#include "LibrariesTask.h"
+#include "minecraft/MinecraftInstance.h"
+#include "minecraft/ComponentList.h"
+
+LibrariesTask::LibrariesTask(MinecraftInstance * inst)
+{
+	m_inst = inst;
+}
+
+void LibrariesTask::executeTask()
+{
+	setStatus(tr("Getting the library files from Mojang..."));
+	qDebug() << m_inst->name() << ": downloading libraries";
+	MinecraftInstance *inst = (MinecraftInstance *)m_inst;
+
+	// Build a list of URLs that will need to be downloaded.
+	auto components = inst->getComponentList();
+	auto profile = components->getProfile();
+
+	auto job = new NetJob(tr("Libraries for instance %1").arg(inst->name()));
+	downloadJob.reset(job);
+
+	auto metacache = ENV.metacache();
+	QList<LibraryPtr> brokenLocalLibs;
+	QStringList failedFiles;
+	auto createJob = [&](const LibraryPtr & lib)
+	{
+		if(!lib)
+		{
+			emitFailed(tr("Null jar is specified in the metadata, aborting."));
+			return;
+		}
+		auto dls = lib->getDownloads(currentSystem, metacache.get(), failedFiles, inst->getLocalLibraryPath());
+		for(auto dl : dls)
+		{
+			downloadJob->addNetAction(dl);
+		}
+	};
+	auto createJobs = [&](const QList<LibraryPtr> & libs)
+	{
+		for (auto lib : libs)
+		{
+			createJob(lib);
+		}
+	};
+	createJobs(profile->getLibraries());
+	createJobs(profile->getNativeLibraries());
+	createJobs(profile->getJarMods());
+	createJob(profile->getMainJar());
+
+	// FIXME: this is never filled!!!!
+	if (!brokenLocalLibs.empty())
+	{
+		downloadJob.reset();
+		QString failed_all = failedFiles.join("\n");
+		emitFailed(tr("Some libraries marked as 'local' are missing their jar "
+					"files:\n%1\n\nYou'll have to correct this problem manually. If this is "
+					"an externally tracked instance, make sure to run it at least once "
+					"outside of MultiMC.").arg(failed_all));
+		return;
+	}
+	connect(downloadJob.get(), &NetJob::succeeded, this, &LibrariesTask::emitSucceeded);
+	connect(downloadJob.get(), &NetJob::failed, this, &LibrariesTask::jarlibFailed);
+	connect(downloadJob.get(), &NetJob::progress, this, &LibrariesTask::progress);
+	downloadJob->start();
+}
+
+bool LibrariesTask::canAbort() const
+{
+	return true;
+}
+
+void LibrariesTask::jarlibFailed(QString reason)
+{
+	emitFailed(tr("Game update failed: it was impossible to fetch the required libraries.\nReason:\n%1").arg(reason));
+}
+
+bool LibrariesTask::abort()
+{
+	if(downloadJob)
+	{
+		return downloadJob->abort();
+	}
+	else
+	{
+		qWarning() << "Prematurely aborted LibrariesTask";
+	}
+	return true;
+}