Merge branch 'develop' of https://github.com/PrismLauncher/PrismLauncher into requires

17 files changed, 1220 insertions, 321 deletions

diff --git a/launcher/CMakeLists.txt b/launcher/CMakeLists.txt
index 273b5449..ce2771a4 100644
--- a/launcher/CMakeLists.txt
+++ b/launcher/CMakeLists.txt
@@ -525,6 +525,8 @@ set(MODRINTH_SOURCES
     modplatform/modrinth/ModrinthCheckUpdate.h
     modplatform/modrinth/ModrinthInstanceCreationTask.cpp
     modplatform/modrinth/ModrinthInstanceCreationTask.h
+    modplatform/modrinth/ModrinthPackExportTask.cpp
+    modplatform/modrinth/ModrinthPackExportTask.h
 )
 
 set(PACKWIZ_SOURCES
@@ -720,6 +722,10 @@ SET(LAUNCHER_SOURCES
     # FIXME: maybe find a better home for this.
     SkinUtils.cpp
     SkinUtils.h
+    FileIgnoreProxy.cpp
+    FileIgnoreProxy.h
+    FastFileIconProvider.cpp
+    FastFileIconProvider.h
 
     # GUI - setup wizard
     ui/setupwizard/SetupWizard.h
@@ -900,6 +906,8 @@ SET(LAUNCHER_SOURCES
     ui/dialogs/EditAccountDialog.h
     ui/dialogs/ExportInstanceDialog.cpp
     ui/dialogs/ExportInstanceDialog.h
+    ui/dialogs/ExportMrPackDialog.cpp
+    ui/dialogs/ExportMrPackDialog.h
     ui/dialogs/IconPickerDialog.cpp
     ui/dialogs/IconPickerDialog.h
     ui/dialogs/ImportResourceDialog.cpp
@@ -1046,6 +1054,7 @@ qt_wrap_ui(LAUNCHER_UI
     ui/dialogs/ProfileSelectDialog.ui
     ui/dialogs/SkinUploadDialog.ui
     ui/dialogs/ExportInstanceDialog.ui
+    ui/dialogs/ExportMrPackDialog.ui
     ui/dialogs/IconPickerDialog.ui
     ui/dialogs/ImportResourceDialog.ui
     ui/dialogs/MSALoginDialog.ui
diff --git a/launcher/FastFileIconProvider.cpp b/launcher/FastFileIconProvider.cpp
new file mode 100644
index 00000000..f2b6f442
--- /dev/null
+++ b/launcher/FastFileIconProvider.cpp
@@ -0,0 +1,47 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  Prism Launcher - Minecraft Launcher
+ *  Copyright (C) 2023 TheKodeToad <TheKodeToad@proton.me>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "FastFileIconProvider.h"
+
+#include <QApplication>
+#include <QStyle>
+
+QIcon FastFileIconProvider::icon(const QFileInfo& info) const
+{
+#if QT_VERSION >= QT_VERSION_CHECK(6, 4, 0)
+    bool link = info.isSymbolicLink() || info.isAlias() || info.isShortcut();
+#else
+    // in versions prior to 6.4 we don't have access to isAlias
+    bool link = info.isSymLink();
+#endif
+    QStyle::StandardPixmap icon;
+
+    if (info.isDir()) {
+        if (link)
+            icon = QStyle::SP_DirLinkIcon;
+        else
+            icon = QStyle::SP_DirIcon;
+    } else {
+        if (link)
+            icon = QStyle::SP_FileLinkIcon;
+        else
+            icon = QStyle::SP_FileIcon;
+    }
+
+    return QApplication::style()->standardIcon(icon);
+}
\ No newline at end of file
diff --git a/launcher/FastFileIconProvider.h b/launcher/FastFileIconProvider.h
new file mode 100644
index 00000000..20853404
--- /dev/null
+++ b/launcher/FastFileIconProvider.h
@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  Prism Launcher - Minecraft Launcher
+ *  Copyright (C) 2023 TheKodeToad <TheKodeToad@proton.me>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <QFileIconProvider>
+
+class FastFileIconProvider : public QFileIconProvider {
+   public:
+    QIcon icon(const QFileInfo& info) const override;
+};
\ No newline at end of file
diff --git a/launcher/FileIgnoreProxy.cpp b/launcher/FileIgnoreProxy.cpp
new file mode 100644
index 00000000..a3b7d505
--- /dev/null
+++ b/launcher/FileIgnoreProxy.cpp
@@ -0,0 +1,256 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  Prism Launcher - Minecraft Launcher
+ *  Copyright (C) 2022 Sefa Eyeoglu <contact@scrumplex.net>
+ *  Copyright (C) 2023 TheKodeToad <TheKodeToad@proton.me>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
+ */
+
+#include "FileIgnoreProxy.h"
+
+#include <QDebug>
+#include <QFileSystemModel>
+#include <QSortFilterProxyModel>
+#include <QStack>
+#include "FileSystem.h"
+#include "SeparatorPrefixTree.h"
+#include "StringUtils.h"
+
+FileIgnoreProxy::FileIgnoreProxy(QString root, QObject* parent) : QSortFilterProxyModel(parent), root(root) {}
+// NOTE: Sadly, we have to do sorting ourselves.
+bool FileIgnoreProxy::lessThan(const QModelIndex& left, const QModelIndex& right) const
+{
+    QFileSystemModel* fsm = qobject_cast<QFileSystemModel*>(sourceModel());
+    if (!fsm) {
+        return QSortFilterProxyModel::lessThan(left, right);
+    }
+    bool asc = sortOrder() == Qt::AscendingOrder ? true : false;
+
+    QFileInfo leftFileInfo = fsm->fileInfo(left);
+    QFileInfo rightFileInfo = fsm->fileInfo(right);
+
+    if (!leftFileInfo.isDir() && rightFileInfo.isDir()) {
+        return !asc;
+    }
+    if (leftFileInfo.isDir() && !rightFileInfo.isDir()) {
+        return asc;
+    }
+
+    // sort and proxy model breaks the original model...
+    if (sortColumn() == 0) {
+        return StringUtils::naturalCompare(leftFileInfo.fileName(), rightFileInfo.fileName(), Qt::CaseInsensitive) < 0;
+    }
+    if (sortColumn() == 1) {
+        auto leftSize = leftFileInfo.size();
+        auto rightSize = rightFileInfo.size();
+        if ((leftSize == rightSize) || (leftFileInfo.isDir() && rightFileInfo.isDir())) {
+            return StringUtils::naturalCompare(leftFileInfo.fileName(), rightFileInfo.fileName(), Qt::CaseInsensitive) < 0 ? asc : !asc;
+        }
+        return leftSize < rightSize;
+    }
+    return QSortFilterProxyModel::lessThan(left, right);
+}
+
+Qt::ItemFlags FileIgnoreProxy::flags(const QModelIndex& index) const
+{
+    if (!index.isValid())
+        return Qt::NoItemFlags;
+
+    auto sourceIndex = mapToSource(index);
+    Qt::ItemFlags flags = sourceIndex.flags();
+    if (index.column() == 0) {
+        flags |= Qt::ItemIsUserCheckable;
+        if (sourceIndex.model()->hasChildren(sourceIndex)) {
+            flags |= Qt::ItemIsAutoTristate;
+        }
+    }
+
+    return flags;
+}
+
+QVariant FileIgnoreProxy::data(const QModelIndex& index, int role) const
+{
+    QModelIndex sourceIndex = mapToSource(index);
+
+    if (index.column() == 0 && role == Qt::CheckStateRole) {
+        QFileSystemModel* fsm = qobject_cast<QFileSystemModel*>(sourceModel());
+        auto blockedPath = relPath(fsm->filePath(sourceIndex));
+        auto cover = blocked.cover(blockedPath);
+        if (!cover.isNull()) {
+            return QVariant(Qt::Unchecked);
+        } else if (blocked.exists(blockedPath)) {
+            return QVariant(Qt::PartiallyChecked);
+        } else {
+            return QVariant(Qt::Checked);
+        }
+    }
+
+    return sourceIndex.data(role);
+}
+
+bool FileIgnoreProxy::setData(const QModelIndex& index, const QVariant& value, int role)
+{
+    if (index.column() == 0 && role == Qt::CheckStateRole) {
+        Qt::CheckState state = static_cast<Qt::CheckState>(value.toInt());
+        return setFilterState(index, state);
+    }
+
+    QModelIndex sourceIndex = mapToSource(index);
+    return QSortFilterProxyModel::sourceModel()->setData(sourceIndex, value, role);
+}
+
+QString FileIgnoreProxy::relPath(const QString& path) const
+{
+    return QDir(root).relativeFilePath(path);
+}
+
+bool FileIgnoreProxy::setFilterState(QModelIndex index, Qt::CheckState state)
+{
+    QFileSystemModel* fsm = qobject_cast<QFileSystemModel*>(sourceModel());
+
+    if (!fsm) {
+        return false;
+    }
+
+    QModelIndex sourceIndex = mapToSource(index);
+    auto blockedPath = relPath(fsm->filePath(sourceIndex));
+    bool changed = false;
+    if (state == Qt::Unchecked) {
+        // blocking a path
+        auto& node = blocked.insert(blockedPath);
+        // get rid of all blocked nodes below
+        node.clear();
+        changed = true;
+    } else if (state == Qt::Checked || state == Qt::PartiallyChecked) {
+        if (!blocked.remove(blockedPath)) {
+            auto cover = blocked.cover(blockedPath);
+            qDebug() << "Blocked by cover" << cover;
+            // uncover
+            blocked.remove(cover);
+            // block all contents, except for any cover
+            QModelIndex rootIndex = fsm->index(FS::PathCombine(root, cover));
+            QModelIndex doing = rootIndex;
+            int row = 0;
+            QStack<QModelIndex> todo;
+            while (1) {
+                auto node = fsm->index(row, 0, doing);
+                if (!node.isValid()) {
+                    if (!todo.size()) {
+                        break;
+                    } else {
+                        doing = todo.pop();
+                        row = 0;
+                        continue;
+                    }
+                }
+                auto relpath = relPath(fsm->filePath(node));
+                if (blockedPath.startsWith(relpath))  // cover found?
+                {
+                    // continue processing cover later
+                    todo.push(node);
+                } else {
+                    // or just block this one.
+                    blocked.insert(relpath);
+                }
+                row++;
+            }
+        }
+        changed = true;
+    }
+    if (changed) {
+        // update the thing
+        emit dataChanged(index, index, { Qt::CheckStateRole });
+        // update everything above index
+        QModelIndex up = index.parent();
+        while (1) {
+            if (!up.isValid())
+                break;
+            emit dataChanged(up, up, { Qt::CheckStateRole });
+            up = up.parent();
+        }
+        // and everything below the index
+        QModelIndex doing = index;
+        int row = 0;
+        QStack<QModelIndex> todo;
+        while (1) {
+            auto node = this->index(row, 0, doing);
+            if (!node.isValid()) {
+                if (!todo.size()) {
+                    break;
+                } else {
+                    doing = todo.pop();
+                    row = 0;
+                    continue;
+                }
+            }
+            emit dataChanged(node, node, { Qt::CheckStateRole });
+            todo.push(node);
+            row++;
+        }
+        // siblings and unrelated nodes are ignored
+    }
+    return true;
+}
+
+bool FileIgnoreProxy::shouldExpand(QModelIndex index)
+{
+    QModelIndex sourceIndex = mapToSource(index);
+    QFileSystemModel* fsm = qobject_cast<QFileSystemModel*>(sourceModel());
+    if (!fsm) {
+        return false;
+    }
+    auto blockedPath = relPath(fsm->filePath(sourceIndex));
+    auto found = blocked.find(blockedPath);
+    if (found) {
+        return !found->leaf();
+    }
+    return false;
+}
+
+void FileIgnoreProxy::setBlockedPaths(QStringList paths)
+{
+    beginResetModel();
+    blocked.clear();
+    blocked.insert(paths);
+    endResetModel();
+}
+
+bool FileIgnoreProxy::filterAcceptsColumn(int source_column, const QModelIndex& source_parent) const
+{
+    Q_UNUSED(source_parent)
+
+    // adjust the columns you want to filter out here
+    // return false for those that will be hidden
+    if (source_column == 2 || source_column == 3)
+        return false;
+
+    return true;
+}
diff --git a/launcher/FileIgnoreProxy.h b/launcher/FileIgnoreProxy.h
new file mode 100644
index 00000000..a5a1153d
--- /dev/null
+++ b/launcher/FileIgnoreProxy.h
@@ -0,0 +1,72 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  Prism Launcher - Minecraft Launcher
+ *  Copyright (C) 2022 Sefa Eyeoglu <contact@scrumplex.net>
+ *  Copyright (C) 2023 TheKodeToad <TheKodeToad@proton.me>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
+ */
+
+#pragma once
+
+#include <QSortFilterProxyModel>
+#include "SeparatorPrefixTree.h"
+
+class FileIgnoreProxy : public QSortFilterProxyModel {
+    Q_OBJECT
+
+   public:
+    FileIgnoreProxy(QString root, QObject* parent);
+    // NOTE: Sadly, we have to do sorting ourselves.
+    bool lessThan(const QModelIndex& left, const QModelIndex& right) const;
+
+    virtual Qt::ItemFlags flags(const QModelIndex& index) const;
+
+    virtual QVariant data(const QModelIndex& index, int role = Qt::DisplayRole) const;
+    virtual bool setData(const QModelIndex& index, const QVariant& value, int role = Qt::EditRole);
+
+    QString relPath(const QString& path) const;
+
+    bool setFilterState(QModelIndex index, Qt::CheckState state);
+
+    bool shouldExpand(QModelIndex index);
+
+    void setBlockedPaths(QStringList paths);
+
+    inline const SeparatorPrefixTree<'/'>& blockedPaths() const { return blocked; }
+    inline SeparatorPrefixTree<'/'>& blockedPaths() { return blocked; }
+
+   protected:
+    bool filterAcceptsColumn(int source_column, const QModelIndex& source_parent) const;
+
+   private:
+    const QString root;
+    SeparatorPrefixTree<'/'> blocked;
+};
diff --git a/launcher/InstanceCopyTask.cpp b/launcher/InstanceCopyTask.cpp
index 4ac3b51a..60dcd5a1 100644
--- a/launcher/InstanceCopyTask.cpp
+++ b/launcher/InstanceCopyTask.cpp
@@ -39,7 +39,16 @@ void InstanceCopyTask::executeTask()
     setStatus(tr("Copying instance %1").arg(m_origInstance->name()));
 
     auto copySaves = [&]() {
-        FS::copy savesCopy(FS::PathCombine(m_origInstance->instanceRoot(), "saves"), FS::PathCombine(m_stagingPath, "saves"));
+        QFileInfo mcDir(FS::PathCombine(m_stagingPath, "minecraft"));
+        QFileInfo dotMCDir(FS::PathCombine(m_stagingPath, ".minecraft"));
+
+        QString staging_mc_dir;
+        if (mcDir.exists() && !dotMCDir.exists())
+            staging_mc_dir = mcDir.filePath();
+        else
+            staging_mc_dir = dotMCDir.filePath();
+
+        FS::copy savesCopy(FS::PathCombine(m_origInstance->gameRoot(), "saves"), FS::PathCombine(staging_mc_dir, "saves"));
         savesCopy.followSymlinks(true);
 
         return savesCopy();
@@ -123,6 +132,7 @@ void InstanceCopyTask::copyFinished()
         emitFailed(tr("Instance folder copy failed."));
         return;
     }
+
     // FIXME: shouldn't this be able to report errors?
     auto instanceSettings = std::make_shared<INISettingsObject>(FS::PathCombine(m_stagingPath, "instance.cfg"));
 
@@ -134,6 +144,24 @@ void InstanceCopyTask::copyFinished()
     }
     if (m_useLinks)
         inst->addLinkedInstanceId(m_origInstance->id());
+    if (m_useLinks) {
+        auto allowed_symlinks_file = QFileInfo(FS::PathCombine(inst->gameRoot(), "allowed_symlinks.txt"));
+
+        QByteArray allowed_symlinks;
+        if (allowed_symlinks_file.exists()) {
+            allowed_symlinks.append(FS::read(allowed_symlinks_file.path()));
+            if (allowed_symlinks.right(1) != "\n")
+                allowed_symlinks.append("\n");  // we want to be on a new line
+        }
+        allowed_symlinks.append(m_origInstance->gameRoot().toUtf8());
+        allowed_symlinks.append("\n");
+        if (allowed_symlinks_file.isSymLink())
+            FS::deletePath(allowed_symlinks_file
+                               .path());  // we dont want to modify the original. also make sure the resulting file is not itself a link.
+
+        FS::write(allowed_symlinks_file.path(), allowed_symlinks);
+    }
+
     emitSucceeded();
 }
 
diff --git a/launcher/modplatform/modrinth/ModrinthPackExportTask.cpp b/launcher/modplatform/modrinth/ModrinthPackExportTask.cpp
new file mode 100644
index 00000000..29df90dd
--- /dev/null
+++ b/launcher/modplatform/modrinth/ModrinthPackExportTask.cpp
@@ -0,0 +1,323 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  Prism Launcher - Minecraft Launcher
+ *  Copyright (C) 2023 TheKodeToad <TheKodeToad@proton.me>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "ModrinthPackExportTask.h"
+
+#include <QCryptographicHash>
+#include <QFileInfo>
+#include <QMessageBox>
+#include <QtConcurrentRun>
+#include "Json.h"
+#include "MMCZip.h"
+#include "minecraft/PackProfile.h"
+#include "minecraft/mod/ModFolderModel.h"
+
+const QStringList ModrinthPackExportTask::PREFIXES({ "mods", "coremods", "resourcepacks", "texturepacks", "shaderpacks" });
+const QStringList ModrinthPackExportTask::FILE_EXTENSIONS({ "jar", "litemod", "zip" });
+
+ModrinthPackExportTask::ModrinthPackExportTask(const QString& name,
+                                               const QString& version,
+                                               const QString& summary,
+                                               InstancePtr instance,
+                                               const QString& output,
+                                               MMCZip::FilterFunction filter)
+    : name(name)
+    , version(version)
+    , summary(summary)
+    , instance(instance)
+    , mcInstance(dynamic_cast<MinecraftInstance*>(instance.get()))
+    , gameRoot(instance->gameRoot())
+    , output(output)
+    , filter(filter)
+{}
+
+void ModrinthPackExportTask::executeTask()
+{
+    setStatus(tr("Searching for files..."));
+    setProgress(0, 0);
+    collectFiles();
+}
+
+bool ModrinthPackExportTask::abort()
+{
+    if (task != nullptr) {
+        task->abort();
+        task = nullptr;
+        emitAborted();
+        return true;
+    }
+
+    if (buildZipFuture.isRunning()) {
+        buildZipFuture.cancel();
+        // NOTE: Here we don't do `emitAborted()` because it will be done when `buildZipFuture` actually cancels, which may not occur immediately.
+        return true;
+    }
+
+    return false;
+}
+
+void ModrinthPackExportTask::collectFiles()
+{
+    setAbortable(false);
+    QCoreApplication::processEvents();
+
+    files.clear();
+    if (!MMCZip::collectFileListRecursively(instance->gameRoot(), nullptr, &files, filter)) {
+        emitFailed(tr("Could not search for files"));
+        return;
+    }
+
+    pendingHashes.clear();
+    resolvedFiles.clear();
+
+    if (mcInstance) {
+        mcInstance->loaderModList()->update();
+        connect(mcInstance->loaderModList().get(), &ModFolderModel::updateFinished, this, &ModrinthPackExportTask::collectHashes);
+    } else
+        collectHashes();
+}
+
+void ModrinthPackExportTask::collectHashes()
+{
+    for (const QFileInfo& file : files) {
+        QCoreApplication::processEvents();
+
+        const QString relative = gameRoot.relativeFilePath(file.absoluteFilePath());
+        // require sensible file types
+        if (!std::any_of(PREFIXES.begin(), PREFIXES.end(),
+                         [&relative](const QString& prefix) { return relative.startsWith(prefix + QDir::separator()); }))
+            continue;
+        if (!std::any_of(FILE_EXTENSIONS.begin(), FILE_EXTENSIONS.end(), [&relative](const QString& extension) {
+                return relative.endsWith('.' + extension) || relative.endsWith('.' + extension + ".disabled");
+            })) {
+            continue;
+        }
+
+        QCryptographicHash sha512(QCryptographicHash::Algorithm::Sha512);
+
+        QFile openFile(file.absoluteFilePath());
+        if (!openFile.open(QFile::ReadOnly)) {
+            qWarning() << "Could not open" << file << "for hashing";
+            continue;
+        }
+
+        const QByteArray data = openFile.readAll();
+        if (openFile.error() != QFileDevice::NoError) {
+            qWarning() << "Could not read" << file;
+            continue;
+        }
+        sha512.addData(data);
+
+        auto allMods = mcInstance->loaderModList()->allMods();
+        if (auto modIter = std::find_if(allMods.begin(), allMods.end(), [&file](Mod* mod) { return mod->fileinfo() == file; });
+            modIter != allMods.end()) {
+            const Mod* mod = *modIter;
+            if (mod->metadata() != nullptr) {
+                QUrl& url = mod->metadata()->url;
+                // ensure the url is permitted on modrinth.com
+                if (!url.isEmpty() && BuildConfig.MODRINTH_MRPACK_HOSTS.contains(url.host())) {
+                    qDebug() << "Resolving" << relative << "from index";
+
+                    QCryptographicHash sha1(QCryptographicHash::Algorithm::Sha1);
+                    sha1.addData(data);
+
+                    ResolvedFile file{ sha1.result().toHex(), sha512.result().toHex(), url.toString(), openFile.size() };
+                    resolvedFiles[relative] = file;
+
+                    // nice! we've managed to resolve based on local metadata!
+                    // no need to enqueue it
+                    continue;
+                }
+            }
+        }
+
+        qDebug() << "Enqueueing" << relative << "for Modrinth query";
+        pendingHashes[relative] = sha512.result().toHex();
+    }
+
+    setAbortable(true);
+    makeApiRequest();
+}
+
+void ModrinthPackExportTask::makeApiRequest()
+{
+    if (pendingHashes.isEmpty())
+        buildZip();
+    else {
+        QByteArray* response = new QByteArray;
+        task = api.currentVersions(pendingHashes.values(), "sha512", response);
+        connect(task.get(), &NetJob::succeeded, [this, response]() { parseApiResponse(response); });
+        connect(task.get(), &NetJob::failed, this, &ModrinthPackExportTask::emitFailed);
+        task->start();
+    }
+}
+
+void ModrinthPackExportTask::parseApiResponse(const QByteArray* response)
+{
+    task = nullptr;
+
+    try {
+        const QJsonDocument doc = Json::requireDocument(*response);
+
+        QMapIterator<QString, QString> iterator(pendingHashes);
+        while (iterator.hasNext()) {
+            iterator.next();
+
+            const QJsonObject obj = doc[iterator.value()].toObject();
+            if (obj.isEmpty())
+                continue;
+
+            const QJsonArray files = obj["files"].toArray();
+            if (auto fileIter = std::find_if(files.begin(), files.end(),
+                                             [&iterator](const QJsonValue& file) { return file["hashes"]["sha512"] == iterator.value(); });
+                fileIter != files.end()) {
+                // map the file to the url
+                resolvedFiles[iterator.key()] =
+                    ResolvedFile{ fileIter->toObject()["hashes"].toObject()["sha1"].toString(), iterator.value(),
+                                  fileIter->toObject()["url"].toString(), fileIter->toObject()["size"].toInt() };
+            }
+        }
+    } catch (const Json::JsonException& e) {
+        emitFailed(tr("Failed to parse versions response: %1").arg(e.what()));
+        return;
+    }
+    pendingHashes.clear();
+    buildZip();
+}
+
+void ModrinthPackExportTask::buildZip()
+{
+    setStatus(tr("Adding files..."));
+
+    buildZipFuture = QtConcurrent::run(QThreadPool::globalInstance(), [this]() {
+        QuaZip zip(output);
+        if (!zip.open(QuaZip::mdCreate)) {
+            QFile::remove(output);
+            return BuildZipResult(tr("Could not create file"));
+        }
+
+        if (buildZipFuture.isCanceled())
+            return BuildZipResult();
+
+        QuaZipFile indexFile(&zip);
+        if (!indexFile.open(QIODevice::WriteOnly, QuaZipNewInfo("modrinth.index.json"))) {
+            QFile::remove(output);
+            return BuildZipResult(tr("Could not create index"));
+        }
+        indexFile.write(generateIndex());
+
+        size_t progress = 0;
+        for (const QFileInfo& file : files) {
+            if (buildZipFuture.isCanceled()) {
+                QFile::remove(output);
+                return BuildZipResult();
+            }
+
+            setProgress(progress, files.length());
+            const QString relative = gameRoot.relativeFilePath(file.absoluteFilePath());
+            if (!resolvedFiles.contains(relative) && !JlCompress::compressFile(&zip, file.absoluteFilePath(), "overrides/" + relative)) {
+                QFile::remove(output);
+                return BuildZipResult(tr("Could not read and compress %1").arg(relative));
+            }
+            progress++;
+        }
+
+        zip.close();
+
+        if (zip.getZipError() != 0) {
+            QFile::remove(output);
+            return BuildZipResult(tr("A zip error occurred"));
+        }
+
+        return BuildZipResult();
+    });
+    connect(&buildZipWatcher, &QFutureWatcher<BuildZipResult>::finished, this, &ModrinthPackExportTask::finish);
+    buildZipWatcher.setFuture(buildZipFuture);
+}
+
+void ModrinthPackExportTask::finish()
+{
+    if (buildZipFuture.isCanceled())
+        emitAborted();
+    else {
+        const BuildZipResult result = buildZipFuture.result();
+        if (result.has_value())
+            emitFailed(result.value());
+        else
+            emitSucceeded();
+    }
+}
+
+QByteArray ModrinthPackExportTask::generateIndex()
+{
+    QJsonObject obj;
+    obj["formatVersion"] = 1;
+    obj["game"] = "minecraft";
+    obj["name"] = name;
+    obj["versionId"] = version;
+    if (!summary.isEmpty())
+        obj["summary"] = summary;
+
+    if (mcInstance) {
+        auto profile = mcInstance->getPackProfile();
+        // collect all supported components
+        const ComponentPtr minecraft = profile->getComponent("net.minecraft");
+        const ComponentPtr quilt = profile->getComponent("org.quiltmc.quilt-loader");
+        const ComponentPtr fabric = profile->getComponent("net.fabricmc.fabric-loader");
+        const ComponentPtr forge = profile->getComponent("net.minecraftforge");
+
+        // convert all available components to mrpack dependencies
+        QJsonObject dependencies;
+        if (minecraft != nullptr)
+            dependencies["minecraft"] = minecraft->m_version;
+        if (quilt != nullptr)
+            dependencies["quilt-loader"] = quilt->m_version;
+        if (fabric != nullptr)
+            dependencies["fabric-loader"] = fabric->m_version;
+        if (forge != nullptr)
+            dependencies["forge"] = forge->m_version;
+
+        obj["dependencies"] = dependencies;
+    }
+
+    QJsonArray files;
+    QMapIterator<QString, ResolvedFile> iterator(resolvedFiles);
+    while (iterator.hasNext()) {
+        iterator.next();
+
+        const ResolvedFile& value = iterator.value();
+
+        QJsonObject file;
+        QString path = iterator.key();
+        path.replace(QDir::separator(), "/");
+        file["path"] = path;
+        file["downloads"] = QJsonArray({ iterator.value().url });
+
+        QJsonObject hashes;
+        hashes["sha1"] = value.sha1;
+        hashes["sha512"] = value.sha512;
+
+        file["hashes"] = hashes;
+        file["fileSize"] = value.size;
+
+        files << file;
+    }
+    obj["files"] = files;
+
+    return QJsonDocument(obj).toJson(QJsonDocument::Compact);
+}
diff --git a/launcher/modplatform/modrinth/ModrinthPackExportTask.h b/launcher/modplatform/modrinth/ModrinthPackExportTask.h
new file mode 100644
index 00000000..af00ffaa
--- /dev/null
+++ b/launcher/modplatform/modrinth/ModrinthPackExportTask.h
@@ -0,0 +1,77 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  Prism Launcher - Minecraft Launcher
+ *  Copyright (C) 2023 TheKodeToad <TheKodeToad@proton.me>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <QFuture>
+#include <QFutureWatcher>
+#include "BaseInstance.h"
+#include "MMCZip.h"
+#include "minecraft/MinecraftInstance.h"
+#include "modplatform/modrinth/ModrinthAPI.h"
+#include "tasks/Task.h"
+
+class ModrinthPackExportTask : public Task {
+   public:
+    ModrinthPackExportTask(const QString& name,
+                           const QString& version,
+                           const QString& summary,
+                           InstancePtr instance,
+                           const QString& output,
+                           MMCZip::FilterFunction filter);
+
+   protected:
+    void executeTask() override;
+    bool abort() override;
+
+   private:
+    struct ResolvedFile {
+        QString sha1, sha512, url;
+        qint64 size;
+    };
+
+    static const QStringList PREFIXES;
+    static const QStringList FILE_EXTENSIONS;
+
+    // inputs
+    const QString name, version, summary;
+    const InstancePtr instance;
+    MinecraftInstance* mcInstance;
+    const QDir gameRoot;
+    const QString output;
+    const MMCZip::FilterFunction filter;
+
+    typedef std::optional<QString> BuildZipResult;
+
+    ModrinthAPI api;
+    QFileInfoList files;
+    QMap<QString, QString> pendingHashes;
+    QMap<QString, ResolvedFile> resolvedFiles;
+    Task::Ptr task;
+    QFuture<BuildZipResult> buildZipFuture;
+    QFutureWatcher<BuildZipResult> buildZipWatcher;
+
+    void collectFiles();
+    void collectHashes();
+    void makeApiRequest();
+    void parseApiResponse(const QByteArray* response);
+    void buildZip();
+    void finish();
+
+    QByteArray generateIndex();
+};
diff --git a/launcher/translations/TranslationsModel.cpp b/launcher/translations/TranslationsModel.cpp
index 46db4804..23e55c51 100644
--- a/launcher/translations/TranslationsModel.cpp
+++ b/launcher/translations/TranslationsModel.cpp
@@ -190,7 +190,7 @@ struct TranslationsModel::Private
     std::unique_ptr<QTranslator> m_qt_translator;
     std::unique_ptr<QTranslator> m_app_translator;
 
-    Net::Download::Ptr m_index_task;
+    Net::Download* m_index_task;
     QString m_downloadingTranslation;
     NetJob::Ptr m_dl_job;
     NetJob::Ptr m_index_job;
@@ -673,8 +673,9 @@ void TranslationsModel::downloadIndex()
     d->m_index_job.reset(new NetJob("Translations Index", APPLICATION->network()));
     MetaEntryPtr entry = APPLICATION->metacache()->resolveEntry("translations", "index_v2.json");
     entry->setStale(true);
-    d->m_index_task = Net::Download::makeCached(QUrl(BuildConfig.TRANSLATIONS_BASE_URL + "index_v2.json"), entry);
-    d->m_index_job->addNetAction(d->m_index_task);
+    auto task = Net::Download::makeCached(QUrl(BuildConfig.TRANSLATIONS_BASE_URL + "index_v2.json"), entry);
+    d->m_index_task = task.get();
+    d->m_index_job->addNetAction(task);
     connect(d->m_index_job.get(), &NetJob::failed, this, &TranslationsModel::indexFailed);
     connect(d->m_index_job.get(), &NetJob::succeeded, this, &TranslationsModel::indexReceived);
     d->m_index_job->start();
diff --git a/launcher/ui/MainWindow.cpp b/launcher/ui/MainWindow.cpp
index 72b7db64..cb194f66 100644
--- a/launcher/ui/MainWindow.cpp
+++ b/launcher/ui/MainWindow.cpp
@@ -2,7 +2,7 @@
 /*
  *  Prism Launcher - Minecraft Launcher
  *  Copyright (C) 2022 Sefa Eyeoglu <contact@scrumplex.net>
- *  Copyright (C) 2022 TheKodeToad <TheKodeToad@proton.me>
+ *  Copyright (C) 2023 TheKodeToad <TheKodeToad@proton.me>
  *
  *  This program is free software: you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -107,6 +107,7 @@
 #include "ui/dialogs/CopyInstanceDialog.h"
 #include "ui/dialogs/EditAccountDialog.h"
 #include "ui/dialogs/ExportInstanceDialog.h"
+#include "ui/dialogs/ExportMrPackDialog.h"
 #include "ui/dialogs/ImportResourceDialog.h"
 #include "ui/themes/ITheme.h"
 #include "ui/themes/ThemeManager.h"
@@ -397,6 +398,8 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWi
     // removing this looks stupid
     view->setFocus();
 
+    ui->actionExportInstance->setMenu(ui->exportInstanceMenu);
+
     retranslateUi();
 }
 
@@ -1359,7 +1362,7 @@ void MainWindow::on_actionDeleteInstance_triggered()
     APPLICATION->instances()->deleteInstance(id);
 }
 
-void MainWindow::on_actionExportInstance_triggered()
+void MainWindow::on_actionExportInstanceZip_triggered()
 {
     if (m_selectedInstance)
     {
@@ -1368,6 +1371,15 @@ void MainWindow::on_actionExportInstance_triggered()
     }
 }
 
+void MainWindow::on_actionExportInstanceMrPack_triggered()
+{
+    if (m_selectedInstance)
+    {
+        ExportMrPackDialog dlg(m_selectedInstance, this);
+        dlg.exec();
+    }
+}
+
 void MainWindow::on_actionRenameInstance_triggered()
 {
     if (m_selectedInstance)
diff --git a/launcher/ui/MainWindow.h b/launcher/ui/MainWindow.h
index 3a42c34e..a0f912df 100644
--- a/launcher/ui/MainWindow.h
+++ b/launcher/ui/MainWindow.h
@@ -1,7 +1,8 @@
 // SPDX-License-Identifier: GPL-3.0-only
 /*
- *  PolyMC - Minecraft Launcher
+ *  Prism Launcher - Minecraft Launcher
  *  Copyright (C) 2022 Sefa Eyeoglu <contact@scrumplex.net>
+ *  Copyright (C) 2023 TheKodeToad <TheKodeToad@proton.me>
  *
  *  This program is free software: you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -151,7 +152,9 @@ private slots:
     void deleteGroup();
     void undoTrashInstance();
 
-    void on_actionExportInstance_triggered();
+    inline void on_actionExportInstance_triggered() { on_actionExportInstanceZip_triggered(); }
+    void on_actionExportInstanceZip_triggered();
+    void on_actionExportInstanceMrPack_triggered();
 
     void on_actionRenameInstance_triggered();
 
diff --git a/launcher/ui/MainWindow.ui b/launcher/ui/MainWindow.ui
index 2b6a10b1..4a89bc10 100644
--- a/launcher/ui/MainWindow.ui
+++ b/launcher/ui/MainWindow.ui
@@ -150,6 +150,10 @@
     <addaction name="actionChangeInstGroup"/>
     <addaction name="actionViewSelectedInstFolder"/>
     <addaction name="actionExportInstance"/>
+    <widget class="QMenu" name="exportInstanceMenu">
+     <addaction name="actionExportInstanceZip"/>
+     <addaction name="actionExportInstanceMrPack"/>
+    </widget>
     <addaction name="actionCopyInstance"/>
     <addaction name="actionDeleteInstance"/>
     <addaction name="actionCreateInstanceShortcut"/>
@@ -459,10 +463,17 @@
     <string>E&amp;xport...</string>
    </property>
    <property name="toolTip">
-    <string>Export the selected instance as a zip file.</string>
+    <string>Export the selected instance to supported formats.</string>
    </property>
-   <property name="shortcut">
-    <string>Ctrl+E</string>
+  </action>
+  <action name="actionExportInstanceZip">
+   <property name="text">
+    <string>Prism Launcher (zip)</string>
+   </property>
+  </action>
+  <action name="actionExportInstanceMrPack">
+   <property name="text">
+    <string>Modrinth (mrpack)</string>
    </property>
   </action>
   <action name="actionCreateInstanceShortcut">
diff --git a/launcher/ui/dialogs/ExportInstanceDialog.cpp b/launcher/ui/dialogs/ExportInstanceDialog.cpp
index 07ec3c70..8ecd91a9 100644
--- a/launcher/ui/dialogs/ExportInstanceDialog.cpp
+++ b/launcher/ui/dialogs/ExportInstanceDialog.cpp
@@ -1,7 +1,8 @@
 // SPDX-License-Identifier: GPL-3.0-only
 /*
- *  PolyMC - Minecraft Launcher
+ *  Prism Launcher - Minecraft Launcher
  *  Copyright (C) 2022 Sefa Eyeoglu <contact@scrumplex.net>
+ *  Copyright (C) 2023 TheKodeToad <TheKodeToad@proton.me>
  *
  *  This program is free software: you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -46,301 +47,21 @@
 #include <QSaveFile>
 #include <QStack>
 #include <QFileInfo>
-
-#include "StringUtils.h"
 #include "SeparatorPrefixTree.h"
 #include "Application.h"
 #include <icons/IconList.h>
 #include <FileSystem.h>
 
-class PackIgnoreProxy : public QSortFilterProxyModel
-{
-    Q_OBJECT
-
-public:
-    PackIgnoreProxy(InstancePtr instance, QObject *parent) : QSortFilterProxyModel(parent)
-    {
-        m_instance = instance;
-    }
-    // NOTE: Sadly, we have to do sorting ourselves.
-    bool lessThan(const QModelIndex &left, const QModelIndex &right) const
-    {
-        QFileSystemModel *fsm = qobject_cast<QFileSystemModel *>(sourceModel());
-        if (!fsm)
-        {
-            return QSortFilterProxyModel::lessThan(left, right);
-        }
-        bool asc = sortOrder() == Qt::AscendingOrder ? true : false;
-
-        QFileInfo leftFileInfo = fsm->fileInfo(left);
-        QFileInfo rightFileInfo = fsm->fileInfo(right);
-
-        if (!leftFileInfo.isDir() && rightFileInfo.isDir())
-        {
-            return !asc;
-        }
-        if (leftFileInfo.isDir() && !rightFileInfo.isDir())
-        {
-            return asc;
-        }
-
-        // sort and proxy model breaks the original model...
-        if (sortColumn() == 0)
-        {
-            return StringUtils::naturalCompare(leftFileInfo.fileName(), rightFileInfo.fileName(),
-                                           Qt::CaseInsensitive) < 0;
-        }
-        if (sortColumn() == 1)
-        {
-            auto leftSize = leftFileInfo.size();
-            auto rightSize = rightFileInfo.size();
-            if ((leftSize == rightSize) || (leftFileInfo.isDir() && rightFileInfo.isDir()))
-            {
-                return StringUtils::naturalCompare(leftFileInfo.fileName(),
-                                               rightFileInfo.fileName(),
-                                               Qt::CaseInsensitive) < 0
-                           ? asc
-                           : !asc;
-            }
-            return leftSize < rightSize;
-        }
-        return QSortFilterProxyModel::lessThan(left, right);
-    }
-
-    virtual Qt::ItemFlags flags(const QModelIndex &index) const
-    {
-        if (!index.isValid())
-            return Qt::NoItemFlags;
-
-        auto sourceIndex = mapToSource(index);
-        Qt::ItemFlags flags = sourceIndex.flags();
-        if (index.column() == 0)
-        {
-            flags |= Qt::ItemIsUserCheckable;
-            if (sourceIndex.model()->hasChildren(sourceIndex))
-            {
-                flags |= Qt::ItemIsAutoTristate;
-            }
-        }
-
-        return flags;
-    }
-
-    virtual QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const
-    {
-        QModelIndex sourceIndex = mapToSource(index);
-
-        if (index.column() == 0 && role == Qt::CheckStateRole)
-        {
-            QFileSystemModel *fsm = qobject_cast<QFileSystemModel *>(sourceModel());
-            auto blockedPath = relPath(fsm->filePath(sourceIndex));
-            auto cover = blocked.cover(blockedPath);
-            if (!cover.isNull())
-            {
-                return QVariant(Qt::Unchecked);
-            }
-            else if (blocked.exists(blockedPath))
-            {
-                return QVariant(Qt::PartiallyChecked);
-            }
-            else
-            {
-                return QVariant(Qt::Checked);
-            }
-        }
-
-        return sourceIndex.data(role);
-    }
-
-    virtual bool setData(const QModelIndex &index, const QVariant &value,
-                         int role = Qt::EditRole)
-    {
-        if (index.column() == 0 && role == Qt::CheckStateRole)
-        {
-            Qt::CheckState state = static_cast<Qt::CheckState>(value.toInt());
-            return setFilterState(index, state);
-        }
-
-        QModelIndex sourceIndex = mapToSource(index);
-        return QSortFilterProxyModel::sourceModel()->setData(sourceIndex, value, role);
-    }
-
-    QString relPath(const QString &path) const
-    {
-        QString prefix = QDir().absoluteFilePath(m_instance->instanceRoot());
-        prefix += '/';
-        if (!path.startsWith(prefix))
-        {
-            return QString();
-        }
-        return path.mid(prefix.size());
-    }
-
-    bool setFilterState(QModelIndex index, Qt::CheckState state)
-    {
-        QFileSystemModel *fsm = qobject_cast<QFileSystemModel *>(sourceModel());
-
-        if (!fsm)
-        {
-            return false;
-        }
-
-        QModelIndex sourceIndex = mapToSource(index);
-        auto blockedPath = relPath(fsm->filePath(sourceIndex));
-        bool changed = false;
-        if (state == Qt::Unchecked)
-        {
-            // blocking a path
-            auto &node = blocked.insert(blockedPath);
-            // get rid of all blocked nodes below
-            node.clear();
-            changed = true;
-        }
-        else if (state == Qt::Checked || state == Qt::PartiallyChecked)
-        {
-            if (!blocked.remove(blockedPath))
-            {
-                auto cover = blocked.cover(blockedPath);
-                qDebug() << "Blocked by cover" << cover;
-                // uncover
-                blocked.remove(cover);
-                // block all contents, except for any cover
-                QModelIndex rootIndex =
-                    fsm->index(FS::PathCombine(m_instance->instanceRoot(), cover));
-                QModelIndex doing = rootIndex;
-                int row = 0;
-                QStack<QModelIndex> todo;
-                while (1)
-                {
-                    auto node = fsm->index(row, 0, doing);
-                    if (!node.isValid())
-                    {
-                        if (!todo.size())
-                        {
-                            break;
-                        }
-                        else
-                        {
-                            doing = todo.pop();
-                            row = 0;
-                            continue;
-                        }
-                    }
-                    auto relpath = relPath(fsm->filePath(node));
-                    if (blockedPath.startsWith(relpath)) // cover found?
-                    {
-                        // continue processing cover later
-                        todo.push(node);
-                    }
-                    else
-                    {
-                        // or just block this one.
-                        blocked.insert(relpath);
-                    }
-                    row++;
-                }
-            }
-            changed = true;
-        }
-        if (changed)
-        {
-            // update the thing
-            emit dataChanged(index, index, {Qt::CheckStateRole});
-            // update everything above index
-            QModelIndex up = index.parent();
-            while (1)
-            {
-                if (!up.isValid())
-                    break;
-                emit dataChanged(up, up, {Qt::CheckStateRole});
-                up = up.parent();
-            }
-            // and everything below the index
-            QModelIndex doing = index;
-            int row = 0;
-            QStack<QModelIndex> todo;
-            while (1)
-            {
-                auto node = this->index(row, 0, doing);
-                if (!node.isValid())
-                {
-                    if (!todo.size())
-                    {
-                        break;
-                    }
-                    else
-                    {
-                        doing = todo.pop();
-                        row = 0;
-                        continue;
-                    }
-                }
-                emit dataChanged(node, node, {Qt::CheckStateRole});
-                todo.push(node);
-                row++;
-            }
-            // siblings and unrelated nodes are ignored
-        }
-        return true;
-    }
-
-    bool shouldExpand(QModelIndex index)
-    {
-        QModelIndex sourceIndex = mapToSource(index);
-        QFileSystemModel *fsm = qobject_cast<QFileSystemModel *>(sourceModel());
-        if (!fsm)
-        {
-            return false;
-        }
-        auto blockedPath = relPath(fsm->filePath(sourceIndex));
-        auto found = blocked.find(blockedPath);
-        if(found)
-        {
-            return !found->leaf();
-        }
-        return false;
-    }
-
-    void setBlockedPaths(QStringList paths)
-    {
-        beginResetModel();
-        blocked.clear();
-        blocked.insert(paths);
-        endResetModel();
-    }
-
-    const SeparatorPrefixTree<'/'> & blockedPaths() const
-    {
-        return blocked;
-    }
-
-protected:
-    bool filterAcceptsColumn(int source_column, const QModelIndex &source_parent) const
-    {
-        Q_UNUSED(source_parent)
-
-        // adjust the columns you want to filter out here
-        // return false for those that will be hidden
-        if (source_column == 2 || source_column == 3)
-            return false;
-
-        return true;
-    }
-
-private:
-    InstancePtr m_instance;
-    SeparatorPrefixTree<'/'> blocked;
-};
-
 ExportInstanceDialog::ExportInstanceDialog(InstancePtr instance, QWidget *parent)
     : QDialog(parent), ui(new Ui::ExportInstanceDialog), m_instance(instance)
 {
     ui->setupUi(this);
     auto model = new QFileSystemModel(this);
-    proxyModel = new PackIgnoreProxy(m_instance, this);
+    model->setIconProvider(&icons);
+    auto root = instance->instanceRoot();
+    proxyModel = new FileIgnoreProxy(root, this);
     loadPackIgnore();
     proxyModel->setSourceModel(model);
-    auto root = instance->instanceRoot();
     ui->treeView->setModel(proxyModel);
     ui->treeView->setRootIndex(proxyModel->mapFromSource(model->index(root)));
     ui->treeView->sortByColumn(0, Qt::AscendingOrder);
@@ -404,22 +125,11 @@ bool ExportInstanceDialog::doExport()
 
     const QString output = QFileDialog::getSaveFileName(
         this, tr("Export %1").arg(m_instance->name()),
-        FS::PathCombine(QDir::homePath(), name + ".zip"), "Zip (*.zip)", nullptr, QFileDialog::DontConfirmOverwrite);
+        FS::PathCombine(QDir::homePath(), name + ".zip"), "Zip (*.zip)", nullptr);
     if (output.isEmpty())
     {
         return false;
     }
-    if (QFile::exists(output))
-    {
-        int ret =
-            QMessageBox::question(this, tr("Overwrite?"),
-                                  tr("This file already exists. Do you want to overwrite it?"),
-                                  QMessageBox::No, QMessageBox::Yes);
-        if (ret == QMessageBox::No)
-        {
-            return false;
-        }
-    }
 
     SaveIcon(m_instance);
 
@@ -511,5 +221,3 @@ void ExportInstanceDialog::savePackIgnore()
         qWarning() << e.cause();
     }
 }
-
-#include "ExportInstanceDialog.moc"
diff --git a/launcher/ui/dialogs/ExportInstanceDialog.h b/launcher/ui/dialogs/ExportInstanceDialog.h
index dea02d1b..5e801875 100644
--- a/launcher/ui/dialogs/ExportInstanceDialog.h
+++ b/launcher/ui/dialogs/ExportInstanceDialog.h
@@ -1,16 +1,36 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  Prism Launcher - Minecraft Launcher
+ *  Copyright (C) 2023 TheKodeToad <TheKodeToad@proton.me>
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
  */
 
 #pragma once
@@ -18,9 +38,10 @@
 #include <QDialog>
 #include <QModelIndex>
 #include <memory>
+#include "FileIgnoreProxy.h"
+#include "FastFileIconProvider.h"
 
 class BaseInstance;
-class PackIgnoreProxy;
 typedef std::shared_ptr<BaseInstance> InstancePtr;
 
 namespace Ui
@@ -47,7 +68,8 @@ private:
 private:
     Ui::ExportInstanceDialog *ui;
     InstancePtr m_instance;
-    PackIgnoreProxy * proxyModel;
+    FileIgnoreProxy * proxyModel;
+    FastFileIconProvider icons;
 
 private slots:
     void rowsInserted(QModelIndex parent, int top, int bottom);
diff --git a/launcher/ui/dialogs/ExportMrPackDialog.cpp b/launcher/ui/dialogs/ExportMrPackDialog.cpp
new file mode 100644
index 00000000..239873f6
--- /dev/null
+++ b/launcher/ui/dialogs/ExportMrPackDialog.cpp
@@ -0,0 +1,123 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  Prism Launcher - Minecraft Launcher
+ *  Copyright (C) 2023 TheKodeToad <TheKodeToad@proton.me>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "ExportMrPackDialog.h"
+#include "minecraft/mod/ModFolderModel.h"
+#include "ui/dialogs/CustomMessageBox.h"
+#include "ui/dialogs/ProgressDialog.h"
+#include "ui_ExportMrPackDialog.h"
+
+#include <QFileDialog>
+#include <QFileSystemModel>
+#include <QJsonDocument>
+#include <QMessageBox>
+#include <QPushButton>
+#include "FastFileIconProvider.h"
+#include "FileSystem.h"
+#include "MMCZip.h"
+#include "modplatform/modrinth/ModrinthPackExportTask.h"
+
+ExportMrPackDialog::ExportMrPackDialog(InstancePtr instance, QWidget* parent)
+    : QDialog(parent), instance(instance), ui(new Ui::ExportMrPackDialog)
+{
+    ui->setupUi(this);
+    ui->name->setText(instance->name());
+    ui->summary->setText(instance->notes().split(QRegularExpression("\\r?\\n"))[0]);
+
+    // ensure a valid pack is generated
+    // the name and version fields mustn't be empty
+    connect(ui->name, &QLineEdit::textEdited, this, &ExportMrPackDialog::validate);
+    connect(ui->version, &QLineEdit::textEdited, this, &ExportMrPackDialog::validate);
+    // the instance name can technically be empty
+    validate();
+
+    QFileSystemModel* model = new QFileSystemModel(this);
+    model->setIconProvider(&icons);
+
+    // use the game root - everything outside cannot be exported
+    const QDir root(instance->gameRoot());
+    proxy = new FileIgnoreProxy(instance->gameRoot(), this);
+    proxy->setSourceModel(model);
+
+    const QDir::Filters filter(QDir::AllEntries | QDir::NoDotAndDotDot | QDir::AllDirs | QDir::Hidden);
+
+    for (const QString& file : root.entryList(filter)) {
+        if (!(file == "mods" || file == "coremods" || file == "datapacks" || file == "config" || file == "options.txt" ||
+              file == "servers.dat"))
+            proxy->blockedPaths().insert(file);
+    }
+
+    MinecraftInstance* mcInstance = dynamic_cast<MinecraftInstance*>(instance.get());
+    if (mcInstance) {
+        const QDir index = mcInstance->loaderModList()->indexDir();
+        if (index.exists())
+            proxy->blockedPaths().insert(root.relativeFilePath(index.absolutePath()));
+    }
+
+    ui->treeView->setModel(proxy);
+    ui->treeView->setRootIndex(proxy->mapFromSource(model->index(instance->gameRoot())));
+    ui->treeView->sortByColumn(0, Qt::AscendingOrder);
+
+    model->setFilter(filter);
+    model->setRootPath(instance->gameRoot());
+
+    QHeaderView* headerView = ui->treeView->header();
+    headerView->setSectionResizeMode(QHeaderView::ResizeToContents);
+    headerView->setSectionResizeMode(0, QHeaderView::Stretch);
+}
+
+ExportMrPackDialog::~ExportMrPackDialog()
+{
+    delete ui;
+}
+
+void ExportMrPackDialog::done(int result)
+{
+    if (result == Accepted) {
+        const QString filename = FS::RemoveInvalidFilenameChars(ui->name->text());
+        const QString output = QFileDialog::getSaveFileName(this, tr("Export %1").arg(ui->name->text()),
+                                                            FS::PathCombine(QDir::homePath(), filename + ".mrpack"),
+                                                            "Modrinth pack (*.mrpack *.zip)", nullptr);
+
+        if (output.isEmpty())
+            return;
+
+        ModrinthPackExportTask task(ui->name->text(), ui->version->text(), ui->summary->text(), instance, output,
+                                    [this](const QString& path) { return proxy->blockedPaths().covers(path); });
+
+        connect(&task, &Task::failed,
+                [this](const QString reason) { CustomMessageBox::selectable(this, tr("Error"), reason, QMessageBox::Critical)->show(); });
+        connect(&task, &Task::aborted, [this] {
+            CustomMessageBox::selectable(this, tr("Task aborted"), tr("The task has been aborted by the user."), QMessageBox::Information)
+                ->show();
+        });
+
+        ProgressDialog progress(this);
+        progress.setSkipButton(true, tr("Abort"));
+        if (progress.execWithTask(&task) != QDialog::Accepted)
+            return;
+    }
+
+    QDialog::done(result);
+}
+
+void ExportMrPackDialog::validate()
+{
+    const bool invalid = ui->name->text().isEmpty() || ui->version->text().isEmpty();
+    ui->buttonBox->button(QDialogButtonBox::Ok)->setDisabled(invalid);
+}
diff --git a/launcher/ui/dialogs/ExportMrPackDialog.h b/launcher/ui/dialogs/ExportMrPackDialog.h
new file mode 100644
index 00000000..1c70c4ae
--- /dev/null
+++ b/launcher/ui/dialogs/ExportMrPackDialog.h
@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ *  Prism Launcher - Minecraft Launcher
+ *  Copyright (C) 2023 TheKodeToad <TheKodeToad@proton.me>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <QDialog>
+#include "BaseInstance.h"
+#include "FastFileIconProvider.h"
+#include "FileIgnoreProxy.h"
+
+namespace Ui {
+class ExportMrPackDialog;
+}
+
+class ExportMrPackDialog : public QDialog {
+    Q_OBJECT
+
+   public:
+    explicit ExportMrPackDialog(InstancePtr instance, QWidget* parent = nullptr);
+    ~ExportMrPackDialog();
+
+    void done(int result) override;
+    void validate();
+
+   private:
+    const InstancePtr instance;
+    Ui::ExportMrPackDialog* ui;
+    FileIgnoreProxy* proxy;
+    FastFileIconProvider icons;
+};
diff --git a/launcher/ui/dialogs/ExportMrPackDialog.ui b/launcher/ui/dialogs/ExportMrPackDialog.ui
new file mode 100644
index 00000000..9a789737
--- /dev/null
+++ b/launcher/ui/dialogs/ExportMrPackDialog.ui
@@ -0,0 +1,136 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>ExportMrPackDialog</class>
+ <widget class="QDialog" name="ExportMrPackDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>650</width>
+    <height>413</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Export Modrinth Pack</string>
+  </property>
+  <property name="sizeGripEnabled">
+   <bool>true</bool>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout_2">
+   <item>
+    <widget class="QGroupBox" name="information">
+     <property name="title">
+      <string>Information</string>
+     </property>
+     <layout class="QGridLayout" name="gridLayout">
+      <item row="3" column="0">
+       <widget class="QLabel" name="versionLabel">
+        <property name="text">
+         <string>Summary</string>
+        </property>
+       </widget>
+      </item>
+      <item row="3" column="1">
+       <widget class="QLineEdit" name="summary"/>
+      </item>
+      <item row="0" column="0">
+       <widget class="QLabel" name="nameLabel">
+        <property name="text">
+         <string>Name</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="0">
+       <widget class="QLabel" name="summaryLabel">
+        <property name="text">
+         <string>Version</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="1">
+       <widget class="QLineEdit" name="name"/>
+      </item>
+      <item row="1" column="1">
+       <widget class="QLineEdit" name="version">
+        <property name="text">
+         <string>1.0.0</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <widget class="QLabel" name="filesLabel">
+     <property name="text">
+      <string>Files</string>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QTreeView" name="treeView">
+     <property name="alternatingRowColors">
+      <bool>true</bool>
+     </property>
+     <property name="selectionMode">
+      <enum>QAbstractItemView::ExtendedSelection</enum>
+     </property>
+     <property name="sortingEnabled">
+      <bool>true</bool>
+     </property>
+     <attribute name="headerStretchLastSection">
+      <bool>false</bool>
+     </attribute>
+    </widget>
+   </item>
+   <item>
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <tabstops>
+  <tabstop>name</tabstop>
+  <tabstop>version</tabstop>
+  <tabstop>summary</tabstop>
+  <tabstop>treeView</tabstop>
+ </tabstops>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>ExportMrPackDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>324</x>
+     <y>390</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>324</x>
+     <y>206</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>ExportMrPackDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>324</x>
+     <y>390</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>324</x>
+     <y>206</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>