PrismLauncher/api/logic/minecraft/update/LibrariesTask.cpp

96 lines
2.5 KiB
C++

#include "Env.h"
#include "LibrariesTask.h"
#include "minecraft/MinecraftInstance.h"
#include "minecraft/MinecraftProfile.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;
inst->reloadProfile();
if(inst->hasVersionBroken())
{
emitFailed(tr("Failed to load the version description files - check the instance for errors."));
return;
}
// Build a list of URLs that will need to be downloaded.
std::shared_ptr<MinecraftProfile> profile = inst->getMinecraftProfile();
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;
}