added auto updating mods on launch functionality

Signed-off-by: dyredhead <danielyentin@gmail.com>

launcher/CMakeLists.txt

@@ -255,6 +255,8 @@ set(MINECRAFT_SOURCES
     minecraft/update/FoldersTask.h
     minecraft/update/LibrariesTask.cpp
     minecraft/update/LibrariesTask.h
+    minecraft/update/ModUpdateTask.cpp
+    minecraft/update/ModUpdateTask.h
 
     minecraft/launch/ClaimAccount.cpp
     minecraft/launch/ClaimAccount.h

launcher/minecraft/MinecraftInstance.cpp

@@ -73,6 +73,7 @@
 #include "minecraft/update/FoldersTask.h"
 #include "minecraft/update/LegacyFMLLibrariesTask.h"
 #include "minecraft/update/LibrariesTask.h"
+#include "minecraft/update/ModUpdateTask.h"
 
 #include "java/JavaUtils.h"
 
@@ -1208,6 +1209,13 @@ LaunchTask* MinecraftInstance::createLaunchTask(AuthSessionPtr session, Minecraf
         process->appendStep(makeShared<ScanModFolders>(pptr));
     }
 
+    // Update mods if "AutomaticallyUpdateMods" is true.
+    // Must come after ScanModFolders to ensure mods are loaded.
+    if (settings()->get("AutomaticallyUpdateMods").toBool()) {
+        process->appendStep(
+            makeShared<TaskStepWrapper>(pptr, makeShared<ModUpdateTask>(this, settings()->get("AutomaticallyUpdateModsEnabled").toBool())));
+    }
+
     // make sure we have enough RAM, warn the user if we don't
     {
         process->appendStep(makeShared<EnsureAvailableMemory>(pptr, this));

launcher/minecraft/update/ModUpdateTask.cpp

@@ -0,0 +1,125 @@
+#include "ModUpdateTask.h"
+
+#include <ui/dialogs/ProgressDialog.h>
+#include <ui/dialogs/ResourceUpdateDialog.h>
+#include "Application.h"
+#include "BuildConfig.h"
+#include "launch/LaunchStep.h"
+#include "minecraft/AssetsUtils.h"
+#include "minecraft/MinecraftInstance.h"
+#include "minecraft/PackProfile.h"
+#include "minecraft/mod/Mod.h"
+#include "minecraft/mod/ModDetails.h"
+#include "minecraft/mod/ModFolderModel.h"
+#include "net/ApiDownload.h"
+#include "net/ChecksumValidator.h"
+#include "ui/dialogs/CustomMessageBox.h"
+
+ModUpdateTask::ModUpdateTask(MinecraftInstance* inst, bool enabledModsOnly)
+{
+    m_instance = inst;
+    m_enabledModsOnly = enabledModsOnly;
+}
+
+void ModUpdateTask::executeTask()
+{
+    setStatus(tr("Updating mods..."));
+    qDebug() << "Updating mods...";
+
+    if (m_instance->typeName() != "Minecraft") {
+        return;  // this is a null instance or a legacy instance
+    }
+
+    auto* profile = static_cast<MinecraftInstance*>(m_instance)->getPackProfile();
+    if (!profile->getModLoaders().has_value()) {
+        emitFailed(tr("Mod updates are unavailable when mod loader is missing!"));
+        return;
+    }
+
+    if (APPLICATION->settings()->get("ModMetadataDisabled").toBool()) {
+        emitFailed(tr("Mod updates are unavailable when metadata is disabled!"));
+        return;
+    }
+
+    // ResourceUpdateDialog only accepts Resource,
+    // so we convert the Mod* list to a Resource* list with a simple static_cast
+    auto model = m_instance->loaderModList();
+    auto _modsList = model->allMods();
+    QList<Resource*> modsList;
+    modsList.reserve(_modsList.size());
+    for (auto mod : _modsList) {
+        modsList.append(static_cast<Resource*>(mod));
+    }
+
+    // Filter out disabled mods if "AutomaticallyUpdateModsEnabled" is true
+    if (m_enabledModsOnly) {
+        modsList.erase(std::remove_if(modsList.begin(), modsList.end(), [](Resource* resource) { return !resource->enabled(); }),
+                       modsList.end());
+    }
+
+    // Spawn ResourceUpdateDialog to handle mod updates
+    // 99% copied from ModFolderPage.cpp
+    auto parent = QApplication::activeWindow();
+    ResourceUpdateDialog updateDialog =
+        ResourceUpdateDialog(parent, m_instance, model, modsList, m_includeDeps, profile->getModLoadersList());
+    updateDialog.checkCandidates();
+
+    if (updateDialog.aborted()) {
+        CustomMessageBox::selectable(parent, tr("Aborted"), tr("The mod updater was aborted!"), QMessageBox::Warning)->show();
+        emitAborted();
+        return;
+    }
+    if (updateDialog.noUpdates()) {
+        QString message{ tr("'%1' is up-to-date! :)").arg(modsList.front()->name()) };
+        if (modsList.size() > 1) {
+            if (!m_enabledModsOnly) {
+                message = tr("All mods are up-to-date! :)");
+            } else {
+                message = tr("All enabled mods are up-to-date! :)");
+            }
+        }
+        CustomMessageBox::selectable(parent, tr("Update checker"), message)->exec();
+        emitSucceeded();
+        return;
+    }
+
+    if (updateDialog.exec() != 0) {
+        auto* tasks = new ConcurrentTask("Download Mods", APPLICATION->settings()->get("NumberOfConcurrentDownloads").toInt());
+        connect(tasks, &Task::failed, [this, parent, tasks](const QString& reason) {
+            CustomMessageBox::selectable(parent, tr("Error"), reason, QMessageBox::Critical)->show();
+            tasks->deleteLater();
+        });
+        connect(tasks, &Task::aborted, [this, parent, tasks]() {
+            CustomMessageBox::selectable(parent, tr("Aborted"), tr("Download stopped by user."), QMessageBox::Information)->show();
+            tasks->deleteLater();
+        });
+        connect(tasks, &Task::succeeded, [this, parent, tasks]() {
+            QStringList warnings = tasks->warnings();
+            if (warnings.count()) {
+                CustomMessageBox::selectable(parent, tr("Warnings"), warnings.join('\n'), QMessageBox::Warning)->show();
+            }
+            tasks->deleteLater();
+        });
+
+        for (const auto& task : updateDialog.getTasks()) {
+            tasks->addTask(task);
+        }
+
+        ProgressDialog loadDialog(parent);
+        loadDialog.setSkipButton(true, tr("Abort"));
+        loadDialog.execWithTask(tasks);
+    }
+    model->update();
+    qDebug() << "Finished updating mods...";
+    emitSucceeded();
+}
+
+bool ModUpdateTask::canAbort() const
+{
+    return true;
+}
+
+bool ModUpdateTask::abort()
+{
+    return true;
+}

launcher/minecraft/update/ModUpdateTask.h

@@ -0,0 +1,27 @@
+#pragma once
+#include "net/NetJob.h"
+#include "tasks/Task.h"
+class MinecraftInstance;
+
+class ModUpdateTask : public Task {
+    Q_OBJECT
+
+   public:
+    ModUpdateTask(MinecraftInstance* inst, bool enabled);
+    virtual ~ModUpdateTask() = default;
+
+    void executeTask() override;
+
+    bool canAbort() const override;
+
+   public:
+    static QString resourceUrl();
+
+   public slots:
+    bool abort() override;
+
+   private:
+    MinecraftInstance* m_instance;
+    bool m_enabledModsOnly;
+    bool m_includeDeps = true;
+};