pollymc/launcher/minecraft/update/LibrariesTask.cpp

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#include "LibrariesTask.h"
#include "minecraft/MinecraftInstance.h"
#include "minecraft/PackProfile.h"
#include "Application.h"
LibrariesTask::LibrariesTask(MinecraftInstance * inst)
{
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m_inst = inst;
}
void LibrariesTask::executeTask()
{
setStatus(tr("Downloading required library files..."));
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qDebug() << m_inst->name() << ": downloading libraries";
MinecraftInstance *inst = (MinecraftInstance *)m_inst;
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// Build a list of URLs that will need to be downloaded.
auto components = inst->getPackProfile();
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auto profile = components->getProfile();
auto job = new NetJob(tr("Libraries for instance %1").arg(inst->name()), APPLICATION->network());
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downloadJob.reset(job);
auto metacache = APPLICATION->metacache();
auto processArtifactPool = [&](const QList<LibraryPtr> & pool, QStringList & errors, const QString & localPath)
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{
for (auto lib : pool)
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{
if(!lib)
{
emitFailed(tr("Null jar is specified in the metadata, aborting."));
return false;
}
auto dls = lib->getDownloads(inst->runtimeContext(), metacache.get(), errors, localPath);
for(auto dl : dls)
{
downloadJob->addNetAction(dl);
}
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}
return true;
};
QStringList failedLocalLibraries;
QList<LibraryPtr> libArtifactPool;
libArtifactPool.append(profile->getLibraries());
libArtifactPool.append(profile->getNativeLibraries());
libArtifactPool.append(profile->getMavenFiles());
for (auto agent : profile->getAgents())
{
libArtifactPool.append(agent->library());
}
libArtifactPool.append(profile->getMainJar());
processArtifactPool(libArtifactPool, failedLocalLibraries, inst->getLocalLibraryPath());
QStringList failedLocalJarMods;
processArtifactPool(profile->getJarMods(), failedLocalJarMods, inst->jarModsDir());
if (!failedLocalJarMods.empty() || !failedLocalLibraries.empty())
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{
downloadJob.reset();
QString failed_all = (failedLocalLibraries + failedLocalJarMods).join("\n");
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emitFailed(tr("Some artifacts marked as 'local' are missing their files:\n%1\n\nYou need to either add the files, or removed the packages that require them.\nYou'll have to correct this problem manually.").arg(failed_all));
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return;
}
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connect(downloadJob.get(), &NetJob::succeeded, this, &LibrariesTask::emitSucceeded);
connect(downloadJob.get(), &NetJob::failed, this, &LibrariesTask::jarlibFailed);
connect(downloadJob.get(), &NetJob::aborted, this, [this]{ emitFailed(tr("Aborted")); });
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connect(downloadJob.get(), &NetJob::progress, this, &LibrariesTask::progress);
downloadJob->start();
}
bool LibrariesTask::canAbort() const
{
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return true;
}
void LibrariesTask::jarlibFailed(QString reason)
{
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emitFailed(tr("Game update failed: it was impossible to fetch the required libraries.\nReason:\n%1").arg(reason));
}
bool LibrariesTask::abort()
{
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if(downloadJob)
{
return downloadJob->abort();
}
else
{
qWarning() << "Prematurely aborted LibrariesTask";
}
return true;
}