Merge branch 'release-7.x' of https://github.com/PrismLauncher/PrismLauncher into develop

.github/workflows/build.yml

@@ -86,11 +86,11 @@ jobs:
 
           - os: macos-12
             name: macOS
-            macosx_deployment_target: 10.15
+            macosx_deployment_target: 11.0
             qt_ver: 6
             qt_host: mac
             qt_arch: ''
-            qt_version: '6.5.1'
+            qt_version: '6.5.0'
             qt_modules: 'qt5compat qtimageformats'
             qt_tools: ''
 
@@ -374,6 +374,8 @@ jobs:
         shell: msys2 {0}
         run: |
           cmake --install ${{ env.BUILD_DIR }}
+          touch ${{ env.INSTALL_DIR }}/manifest.txt
+          for l in $(find ${{ env.INSTALL_DIR }} -type f); do l=$(cygpath -u $l); l=${l#$(pwd)/}; l=${l#${{ env.INSTALL_DIR }}/}; l=${l#./}; echo $l; done >> ${{ env.INSTALL_DIR }}/manifest.txt 
 
       - name: Package (Windows MSVC)
         if: runner.os == 'Windows' && matrix.msystem == ''
@@ -386,6 +388,10 @@ jobs:
             Copy-Item D:/a/PollyMC/Qt/Tools/OpenSSL/Win_x86/bin/libcrypto-1_1.dll -Destination libcrypto-1_1.dll
             Copy-Item D:/a/PollyMC/Qt/Tools/OpenSSL/Win_x86/bin/libssl-1_1.dll -Destination libssl-1_1.dll
           }
+          cd ${{ github.workspace }}
+
+          Get-ChildItem ${{ env.INSTALL_DIR }} -Recurse | ForEach FullName | Resolve-Path -Relative | %{ $_.TrimStart('.\') } | %{ $_.TrimStart('${{ env.INSTALL_DIR }}') } | %{ $_.TrimStart('\') } | Out-File -FilePath ${{ env.INSTALL_DIR }}/manifest.txt
+
 
       - name: Fetch codesign certificate (Windows)
         if: runner.os == 'Windows'
@@ -410,6 +416,7 @@ jobs:
         run: |
           cp -r ${{ env.INSTALL_DIR }} ${{ env.INSTALL_PORTABLE_DIR }}  # cmake install on Windows is slow, let's just copy instead
           cmake --install ${{ env.BUILD_DIR }} --prefix ${{ env.INSTALL_PORTABLE_DIR }} --component portable
+          for l in $(find ${{ env.INSTALL_PORTABLE_DIR }} -type f); do l=$(cygpath -u $l); l=${l#$(pwd)/}; l=${l#${{ env.INSTALL_PORTABLE_DIR }}/}; l=${l#./}; echo $l; done >> ${{ env.INSTALL_PORTABLE_DIR }}/manifest.txt
 
       - name: Package (Windows MSVC, portable)
         if: runner.os == 'Windows' && matrix.msystem == ''
@@ -417,6 +424,8 @@ jobs:
           cp -r ${{ env.INSTALL_DIR }} ${{ env.INSTALL_PORTABLE_DIR }}  # cmake install on Windows is slow, let's just copy instead
           cmake --install ${{ env.BUILD_DIR }} --prefix ${{ env.INSTALL_PORTABLE_DIR }} --component portable
           
+          Get-ChildItem ${{ env.INSTALL_PORTABLE_DIR }} -Recurse | ForEach FullName | Resolve-Path -Relative | %{ $_.TrimStart('.\') } | %{ $_.TrimStart('${{ env.INSTALL_PORTABLE_DIR }}') } | %{ $_.TrimStart('\') } | Out-File -FilePath ${{ env.INSTALL_DIR }}/manifest.txt
+
       - name: Package (Windows, installer)
         if: runner.os == 'Windows'
         run: |
@@ -436,6 +445,7 @@ jobs:
         if: runner.os == 'Linux'
         run: |
           cmake --install ${{ env.BUILD_DIR }} --prefix ${{ env.INSTALL_DIR }}
+          for l in $(find ${{ env.INSTALL_DIR }} -type f); do l=${l#$(pwd)/}; l=${l#${{ env.INSTALL_DIR }}/}; l=${l#./}; echo $l; done > ${{ env.INSTALL_DIR }}/manifest.txt
 
           cd ${{ env.INSTALL_DIR }}
           tar --owner root --group root -czf ../PollyMC.tar.gz *
@@ -445,6 +455,8 @@ jobs:
         run: |
           cmake --install ${{ env.BUILD_DIR }} --prefix ${{ env.INSTALL_PORTABLE_DIR }}
           cmake --install ${{ env.BUILD_DIR }} --prefix ${{ env.INSTALL_PORTABLE_DIR }} --component portable
+          for l in $(find ${{ env.INSTALL_PORTABLE_DIR }} -type f); do l=${l#$(pwd)/}; l=${l#${{ env.INSTALL_PORTABLE_DIR }}/}; l=${l#./}; echo $l; done > ${{ env.INSTALL_PORTABLE_DIR }}/manifest.txt
+
 
           cd ${{ env.INSTALL_PORTABLE_DIR }}
           tar -czf ../PollyMC-portable.tar.gz *

buildconfig/BuildConfig.h

@@ -1,9 +1,10 @@
 // SPDX-License-Identifier: GPL-3.0-only
 /*
- *  PolyMC - Minecraft Launcher
+ *  Prism Launcher - Minecraft Launcher
  *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
  *  Copyright (C) 2022 Sefa Eyeoglu <contact@scrumplex.net>
  *  Copyright (C) 2022 Lenny McLennington <lenny@sneed.church>
+ *  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
@@ -37,6 +38,7 @@
 
 #pragma once
 #include <QString>
+#include <QList>
 
 /**
  * \brief The Config class holds all the build-time information passed from the build system.
@@ -166,6 +168,7 @@ class Config {
 
     QString MODRINTH_STAGING_URL = "https://staging-api.modrinth.com/v2";
     QString MODRINTH_PROD_URL = "https://api.modrinth.com/v2";
+    QStringList MODRINTH_MRPACK_HOSTS{"cdn.modrinth.com", "github.com", "raw.githubusercontent.com", "gitlab.com"};
 
     QString FLAME_BASE_URL = "https://api.curseforge.com/v1";
 

default.nix

@@ -1 +1,14 @@
-(import nix/flake-compat.nix).defaultNix
+(
+  import
+  (
+    let
+      lock = builtins.fromJSON (builtins.readFile ./flake.lock);
+    in
+      fetchTarball {
+        url = "https://github.com/edolstra/flake-compat/archive/${lock.nodes.flake-compat.locked.rev}.tar.gz";
+        sha256 = lock.nodes.flake-compat.locked.narHash;
+      }
+  )
+  {src = ./.;}
+)
+.defaultNix

flake.lock

@@ -16,29 +16,31 @@
         "type": "github"
       }
     },
-    "flake-compat_2": {
+    "flake-parts": {
-      "flake": false,
+      "inputs": {
+        "nixpkgs-lib": "nixpkgs-lib"
+      },
       "locked": {
-        "lastModified": 1673956053,
+        "lastModified": 1683560683,
-        "narHash": "sha256-4gtG9iQuiKITOjNQQeQIpoIB6b16fm+504Ch3sNKLd8=",
+        "narHash": "sha256-XAygPMN5Xnk/W2c1aW0jyEa6lfMDZWlQgiNtmHXytPc=",
-        "owner": "edolstra",
+        "owner": "hercules-ci",
-        "repo": "flake-compat",
+        "repo": "flake-parts",
-        "rev": "35bb57c0c8d8b62bbfd284272c928ceb64ddbde9",
+        "rev": "006c75898cf814ef9497252b022e91c946ba8e17",
         "type": "github"
       },
       "original": {
-        "owner": "edolstra",
+        "owner": "hercules-ci",
-        "repo": "flake-compat",
+        "repo": "flake-parts",
         "type": "github"
       }
     },
     "flake-utils": {
       "locked": {
-        "lastModified": 1676283394,
+        "lastModified": 1667395993,
-        "narHash": "sha256-XX2f9c3iySLCw54rJ/CZs+ZK6IQy7GXNY4nSOyu2QG4=",
+        "narHash": "sha256-nuEHfE/LcWyuSWnS8t12N1wc105Qtau+/OdUAjtQ0rA=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "3db36a8b464d0c4532ba1c7dda728f4576d6d073",
+        "rev": "5aed5285a952e0b949eb3ba02c12fa4fcfef535f",
         "type": "github"
       },
       "original": {
@@ -86,11 +88,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1678693419,
+        "lastModified": 1685012353,
-        "narHash": "sha256-bbSv5yqZAW6dz+3f3f3pOUZbxpPN+3OgCljgn7P+nnQ=",
+        "narHash": "sha256-U3oOge4cHnav8OLGdRVhL45xoRj4Ppd+It6nPC9nNIU=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "8e3fad82be64c06fbfb9fd43993aec9ef4623936",
+        "rev": "aeb75dba965e790de427b73315d5addf91a54955",
         "type": "github"
       },
       "original": {
@@ -100,40 +102,44 @@
         "type": "github"
       }
     },
-    "nixpkgs-stable": {
+    "nixpkgs-lib": {
       "locked": {
-        "lastModified": 1673800717,
+        "dir": "lib",
-        "narHash": "sha256-SFHraUqLSu5cC6IxTprex/nTsI81ZQAtDvlBvGDWfnA=",
+        "lastModified": 1682879489,
+        "narHash": "sha256-sASwo8gBt7JDnOOstnps90K1wxmVfyhsTPPNTGBPjjg=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "2f9fd351ec37f5d479556cd48be4ca340da59b8f",
+        "rev": "da45bf6ec7bbcc5d1e14d3795c025199f28e0de0",
         "type": "github"
       },
       "original": {
+        "dir": "lib",
         "owner": "NixOS",
-        "ref": "nixos-22.11",
+        "ref": "nixos-unstable",
         "repo": "nixpkgs",
         "type": "github"
       }
     },
     "pre-commit-hooks": {
       "inputs": {
-        "flake-compat": "flake-compat_2",
+        "flake-compat": [
-        "flake-utils": [
+          "flake-compat"
-          "flake-utils"
         ],
+        "flake-utils": "flake-utils",
         "gitignore": "gitignore",
         "nixpkgs": [
           "nixpkgs"
         ],
-        "nixpkgs-stable": "nixpkgs-stable"
+        "nixpkgs-stable": [
+          "nixpkgs"
+        ]
       },
       "locked": {
-        "lastModified": 1678376203,
+        "lastModified": 1684842236,
-        "narHash": "sha256-3tyYGyC8h7fBwncLZy5nCUjTJPrHbmNwp47LlNLOHSM=",
+        "narHash": "sha256-rYWsIXHvNhVQ15RQlBUv67W3YnM+Pd+DuXGMvCBq2IE=",
         "owner": "cachix",
         "repo": "pre-commit-hooks.nix",
-        "rev": "1a20b9708962096ec2481eeb2ddca29ed747770a",
+        "rev": "61e567d6497bc9556f391faebe5e410e6623217f",
         "type": "github"
       },
       "original": {
@@ -145,7 +151,7 @@
     "root": {
       "inputs": {
         "flake-compat": "flake-compat",
-        "flake-utils": "flake-utils",
+        "flake-parts": "flake-parts",
         "libnbtplusplus": "libnbtplusplus",
         "nixpkgs": "nixpkgs",
         "pre-commit-hooks": "pre-commit-hooks"

flake.nix

@@ -3,11 +3,12 @@
 
   inputs = {
     nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
-    flake-utils.url = "github:numtide/flake-utils";
+    flake-parts.url = "github:hercules-ci/flake-parts";
     pre-commit-hooks = {
       url = "github:cachix/pre-commit-hooks.nix";
       inputs.nixpkgs.follows = "nixpkgs";
-      inputs.flake-utils.follows = "flake-utils";
+      inputs.nixpkgs-stable.follows = "nixpkgs";
+      inputs.flake-compat.follows = "flake-compat";
     };
     flake-compat = {
       url = "github:edolstra/flake-compat";
@@ -19,73 +20,8 @@
     };
   };
 
-  outputs = {
+  outputs = inputs:
-    self,
+    inputs.flake-parts.lib.mkFlake
-    nixpkgs,
+    {inherit inputs;}
-    flake-utils,
+    {imports = [./nix];};
-    pre-commit-hooks,
-    libnbtplusplus,
-    ...
-  }: let
-    # User-friendly version number.
-    version = builtins.substring 0 8 self.lastModifiedDate;
-
-    # Supported systems (qtbase is currently broken for "aarch64-darwin")
-    supportedSystems = with flake-utils.lib.system; [
-      x86_64-linux
-      x86_64-darwin
-      aarch64-linux
-    ];
-
-    packagesFn = pkgs: {
-      prismlauncher-qt5 = pkgs.libsForQt5.callPackage ./nix {
-        inherit version self libnbtplusplus;
-      };
-      prismlauncher = pkgs.qt6Packages.callPackage ./nix {
-        inherit version self libnbtplusplus;
-      };
-    };
-  in
-    flake-utils.lib.eachSystem supportedSystems (system: let
-      pkgs = nixpkgs.legacyPackages.${system};
-    in {
-      checks = {
-        pre-commit-check = pre-commit-hooks.lib.${system}.run {
-          src = ./.;
-          hooks = {
-            markdownlint.enable = true;
-
-            alejandra.enable = true;
-            deadnix.enable = true;
-
-            clang-format = {
-              enable =
-                false; # As most of the codebase is **not** formatted, we don't want clang-format yet
-              types_or = ["c" "c++"];
-            };
-          };
-        };
-      };
-
-      packages = let
-        packages = packagesFn pkgs;
-      in
-        packages // {default = packages.prismlauncher;};
-
-      devShells.default = pkgs.mkShell {
-        inherit (self.checks.${system}.pre-commit-check) shellHook;
-        packages = with pkgs; [
-          nodePackages.markdownlint-cli
-          alejandra
-          deadnix
-          clang-tools
-        ];
-
-        inputsFrom = [self.packages.${system}.default];
-        buildInputs = with pkgs; [ccache ninja];
-      };
-    })
-    // {
-      overlays.default = final: _: (packagesFn final);
-    };
 }

launcher/CMakeLists.txt

@@ -535,6 +535,8 @@ set(MODRINTH_SOURCES
     modplatform/modrinth/ModrinthCheckUpdate.h
     modplatform/modrinth/ModrinthInstanceCreationTask.cpp
     modplatform/modrinth/ModrinthInstanceCreationTask.h
+    modplatform/modrinth/ModrinthPackExportTask.cpp
+    modplatform/modrinth/ModrinthPackExportTask.h
 )
 
 set(MODPACKSCH_SOURCES
@@ -738,6 +740,10 @@ 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
@@ -927,6 +933,8 @@ SET(LAUNCHER_SOURCES
     ui/dialogs/ElybyLoginDialog.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
@@ -1074,6 +1082,7 @@ 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

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);
+}

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;
+};

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;
+}

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;
+};

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.filePath()));
+            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
+                               .filePath());  // we dont want to modify the original. also make sure the resulting file is not itself a link.
+
+        FS::write(allowed_symlinks_file.filePath(), allowed_symlinks);
+    }
+
     emitSucceeded();
 }
 

launcher/ResourceDownloadTask.cpp

@@ -24,14 +24,15 @@
 #include "minecraft/mod/ModFolderModel.h"
 #include "minecraft/mod/ResourceFolderModel.h"
 
-ResourceDownloadTask::ResourceDownloadTask(ModPlatform::IndexedPack pack,
+ResourceDownloadTask::ResourceDownloadTask(ModPlatform::IndexedPack::Ptr pack,
                                            ModPlatform::IndexedVersion version,
                                            const std::shared_ptr<ResourceFolderModel> packs,
-                                           bool is_indexed)
+                                           bool is_indexed,
-    : m_pack(std::move(pack)), m_pack_version(std::move(version)), m_pack_model(packs)
+                                           QString custom_target_folder)
+    : m_pack(std::move(pack)), m_pack_version(std::move(version)), m_pack_model(packs), m_custom_target_folder(custom_target_folder)
 {
     if (auto model = dynamic_cast<ModFolderModel*>(m_pack_model.get()); model && is_indexed) {
-        m_update_task.reset(new LocalModUpdateTask(model->indexDir(), m_pack, m_pack_version));
+        m_update_task.reset(new LocalModUpdateTask(model->indexDir(), *m_pack, m_pack_version));
         connect(m_update_task.get(), &LocalModUpdateTask::hasOldMod, this, &ResourceDownloadTask::hasOldResource);
 
         addTask(m_update_task);
@@ -44,9 +45,9 @@ ResourceDownloadTask::ResourceDownloadTask(ModPlatform::IndexedPack pack,
     {
         // FIXME: Make this more generic. May require adding additional info to IndexedVersion,
         //        or adquiring a reference to the base instance.
-        if (!m_pack_version.custom_target_folder.isEmpty()) {
+        if (!m_custom_target_folder.isEmpty()) {
             dir.cdUp();
-            dir.cd(m_pack_version.custom_target_folder);
+            dir.cd(m_custom_target_folder);
         }
     }
 

launcher/ResourceDownloadTask.h

@@ -22,23 +22,30 @@
 #include "net/NetJob.h"
 #include "tasks/SequentialTask.h"
 
-#include "modplatform/ModIndex.h"
 #include "minecraft/mod/tasks/LocalModUpdateTask.h"
+#include "modplatform/ModIndex.h"
 
 class ResourceFolderModel;
 
 class ResourceDownloadTask : public SequentialTask {
     Q_OBJECT
    public:
-    explicit ResourceDownloadTask(ModPlatform::IndexedPack pack, ModPlatform::IndexedVersion version, const std::shared_ptr<ResourceFolderModel> packs, bool is_indexed = true);
+    explicit ResourceDownloadTask(ModPlatform::IndexedPack::Ptr pack,
+                                  ModPlatform::IndexedVersion version,
+                                  const std::shared_ptr<ResourceFolderModel> packs,
+                                  bool is_indexed = true,
+                                  QString custom_target_folder = {});
     const QString& getFilename() const { return m_pack_version.fileName; }
-    const QString& getCustomPath() const { return m_pack_version.custom_target_folder; }
+    const QString& getCustomPath() const { return m_custom_target_folder; }
     const QVariant& getVersionID() const { return m_pack_version.fileId; }
+    const QString& getName() const { return m_pack->name; }
+    ModPlatform::IndexedPack::Ptr getPack() { return m_pack; }
 
    private:
-    ModPlatform::IndexedPack m_pack;
+    ModPlatform::IndexedPack::Ptr m_pack;
     ModPlatform::IndexedVersion m_pack_version;
     const std::shared_ptr<ResourceFolderModel> m_pack_model;
+    QString m_custom_target_folder;
 
     NetJob::Ptr m_filesNetJob;
     LocalModUpdateTask::Ptr m_update_task;
@@ -52,6 +59,3 @@ private:
    private slots:
     void hasOldResource(QString name, QString filename);
 };
-
-
-

launcher/meta/JsonFormat.cpp

@@ -56,10 +56,10 @@ static Version::Ptr parseCommonVersion(const QString &uid, const QJsonObject &ob
     version->setType(ensureString(obj, "type", QString()));
     version->setRecommended(ensureBoolean(obj, QString("recommended"), false));
     version->setVolatile(ensureBoolean(obj, QString("volatile"), false));
-    RequireSet requires, conflicts;
+    RequireSet reqs, conflicts;
-    parseRequires(obj, &requires, "requires");
+    parseRequires(obj, &reqs, "requires");
     parseRequires(obj, &conflicts, "conflicts");
-    version->setRequires(requires, conflicts);
+    version->setRequires(reqs, conflicts);
     return version;
 }
 
@@ -176,7 +176,6 @@ void parseRequires(const QJsonObject& obj, RequireSet* ptr, const char * keyName
 {
     if(obj.contains(keyName))
     {
-        QSet<QString> requires;
         auto reqArray = requireArray(obj, keyName);
         auto iter = reqArray.begin();
         while(iter != reqArray.end())

launcher/meta/Version.cpp

@@ -116,9 +116,9 @@ void Meta::Version::setTime(const qint64 time)
     emit timeChanged();
 }
 
-void Meta::Version::setRequires(const Meta::RequireSet &requires, const Meta::RequireSet &conflicts)
+void Meta::Version::setRequires(const Meta::RequireSet &reqs, const Meta::RequireSet &conflicts)
 {
-    m_requires = requires;
+    m_requires = reqs;
     m_conflicts = conflicts;
     emit requiresChanged();
 }

launcher/meta/Version.h

@@ -63,7 +63,7 @@ public:
     {
         return m_time;
     }
-    const Meta::RequireSet &requires() const
+    const Meta::RequireSet &requiredSet() const
     {
         return m_requires;
     }
@@ -91,7 +91,7 @@ public:
 public: // for usage by format parsers only
     void setType(const QString &type);
     void setTime(const qint64 time);
-    void setRequires(const Meta::RequireSet &requires, const Meta::RequireSet &conflicts);
+    void setRequires(const Meta::RequireSet &reqs, const Meta::RequireSet &conflicts);
     void setVolatile(bool volatile_);
     void setRecommended(bool recommended);
     void setProvidesRecommendations();

launcher/meta/VersionList.cpp

@@ -77,7 +77,7 @@ QVariant VersionList::data(const QModelIndex &index, int role) const
     case ParentVersionRole:
     {
         // FIXME: HACK: this should be generic and be replaced by something else. Anything that is a hard 'equals' dep is a 'parent uid'.
-        auto & reqs = version->requires();
+        auto & reqs = version->requiredSet();
         auto iter = std::find_if(reqs.begin(), reqs.end(), [](const Require & req)
         {
             return req.uid == "net.minecraft";
@@ -92,7 +92,7 @@ QVariant VersionList::data(const QModelIndex &index, int role) const
 
     case UidRole: return version->uid();
     case TimeRole: return version->time();
-    case RequiresRole: return QVariant::fromValue(version->requires());
+    case RequiresRole: return QVariant::fromValue(version->requiredSet());
     case SortRole: return version->rawTime();
     case VersionPtrRole: return QVariant::fromValue(version);
     case RecommendedRole: return version->isRecommended();

launcher/minecraft/Component.cpp

@@ -451,9 +451,9 @@ void Component::updateCachedData()
             m_cachedVolatile = file->m_volatile;
             changed = true;
         }
-        if(!deepCompare(m_cachedRequires, file->requires))
+        if(!deepCompare(m_cachedRequires, file->m_requires))
         {
-            m_cachedRequires = file->requires;
+            m_cachedRequires = file->m_requires;
             changed = true;
         }
         if(!deepCompare(m_cachedConflicts, file->conflicts))

launcher/minecraft/OneSixVersionFormat.cpp

@@ -276,7 +276,7 @@ VersionFilePtr OneSixVersionFormat::versionFileFromJson(const QJsonDocument &doc
 
     if (root.contains("requires"))
     {
-        Meta::parseRequires(root, &out->requires);
+        Meta::parseRequires(root, &out->m_requires);
     }
     QString dependsOnMinecraftVersion = root.value("mcVersion").toString();
     if(!dependsOnMinecraftVersion.isEmpty())
@@ -284,9 +284,9 @@ VersionFilePtr OneSixVersionFormat::versionFileFromJson(const QJsonDocument &doc
         Meta::Require mcReq;
         mcReq.uid = "net.minecraft";
         mcReq.equalsVersion = dependsOnMinecraftVersion;
-        if (out->requires.count(mcReq) == 0)
+        if (out->m_requires.count(mcReq) == 0)
         {
-            out->requires.insert(mcReq);
+            out->m_requires.insert(mcReq);
         }
     }
     if (root.contains("conflicts"))
@@ -392,9 +392,9 @@ QJsonDocument OneSixVersionFormat::versionFileToJson(const VersionFilePtr &patch
         }
         root.insert("mods", array);
     }
-    if(!patch->requires.empty())
+    if(!patch->m_requires.empty())
     {
-        Meta::serializeRequires(root, &patch->requires, "requires");
+        Meta::serializeRequires(root, &patch->m_requires, "requires");
     }
     if(!patch->conflicts.empty())
     {

launcher/minecraft/VersionFile.h

@@ -138,7 +138,7 @@ public: /* data */
      * Prism Launcher: set of packages this depends on
      * NOTE: this is shared with the meta format!!!
      */
-    Meta::RequireSet requires;
+    Meta::RequireSet m_requires;
 
     /**
      * Prism Launcher: set of packages this conflicts with

launcher/minecraft/mod/DataPack.cpp

@@ -33,7 +33,9 @@ static const QMap<int, std::pair<Version, Version>> s_pack_format_versions = {
     { 4, { Version("1.13"), Version("1.14.4") } },   { 5, { Version("1.15"), Version("1.16.1") } },
     { 6, { Version("1.16.2"), Version("1.16.5") } }, { 7, { Version("1.17"), Version("1.17.1") } },
     { 8, { Version("1.18"), Version("1.18.1") } },   { 9, { Version("1.18.2"), Version("1.18.2") } },
-    { 10, { Version("1.19"), Version("1.19.3") } },
+    { 10, { Version("1.19"), Version("1.19.3") } },  { 11, { Version("23w03a"), Version("23w05a") } },
+    { 12, { Version("1.19.4"), Version("1.19.4") } }, { 13, { Version("23w12a"), Version("23w14a") } },
+    { 14, { Version("23w16a"), Version("23w17a") } }, { 15, { Version("1.20"), Version("1.20") } },
 };
 
 void DataPack::setPackFormat(int new_format_id)

launcher/minecraft/mod/ResourcePack.cpp

@@ -18,7 +18,8 @@ static const QMap<int, std::pair<Version, Version>> s_pack_format_versions = {
     { 5, { Version("1.15"), Version("1.16.1") } },    { 6, { Version("1.16.2"), Version("1.16.5") } },
     { 7, { Version("1.17"), Version("1.17.1") } },    { 8, { Version("1.18"), Version("1.18.2") } },
     { 9, { Version("1.19"), Version("1.19.2") } },    { 11, { Version("22w42a"), Version("22w44a") } },
-    { 12, { Version("1.19.3"), Version("1.19.3") } },
+    { 12, { Version("1.19.3"), Version("1.19.3") } }, { 13, { Version("1.19.4"), Version("1.19.4") } },
+    { 14, { Version("1.20"), Version("1.20") } }
 };
 
 void ResourcePack::setPackFormat(int new_format_id)

launcher/modplatform/ModIndex.h

@@ -69,7 +69,6 @@ struct IndexedVersion {
 
     // For internal use, not provided by APIs
     bool is_currently_selected = false;
-    QString custom_target_folder;
 };
 
 struct ExtraPackData {
@@ -116,12 +115,12 @@ struct IndexedPack {
         if (!versionsLoaded)
             return false;
 
-        return std::any_of(versions.constBegin(), versions.constEnd(),
+        return std::any_of(versions.constBegin(), versions.constEnd(), [](auto const& v) { return v.is_currently_selected; });
-                [](auto const& v) { return v.is_currently_selected; });
     }
 };
 
 }  // namespace ModPlatform
 
 Q_DECLARE_METATYPE(ModPlatform::IndexedPack)
+Q_DECLARE_METATYPE(ModPlatform::IndexedPack::Ptr)
 Q_DECLARE_METATYPE(ModPlatform::ResourceProvider)

launcher/modplatform/atlauncher/ATLPackInstallTask.cpp

@@ -352,7 +352,7 @@ QString PackInstallTask::getVersionForLoader(QString uid)
         if(m_version.loader.recommended || m_version.loader.latest) {
             for (int i = 0; i < vlist->versions().size(); i++) {
                 auto version = vlist->versions().at(i);
-                auto reqs = version->requires();
+                auto reqs = version->requiredSet();
 
                 // filter by minecraft version, if the loader depends on a certain version.
                 // not all mod loaders depend on a given Minecraft version, so we won't do this

launcher/modplatform/flame/FlameCheckUpdate.cpp

@@ -3,6 +3,7 @@
 #include "FlameModIndex.h"
 
 #include <MurmurHash2.h>
+#include <memory>
 
 #include "FileSystem.h"
 #include "Json.h"
@@ -129,8 +130,7 @@ void FlameCheckUpdate::executeTask()
         setStatus(tr("Getting API response from CurseForge for '%1'...").arg(mod->name()));
         setProgress(i++, m_mods.size());
 
-        ModPlatform::IndexedPack pack{ mod->metadata()->project_id.toString() };
+        auto latest_ver = api.getLatestVersion({ { mod->metadata()->project_id.toString() }, m_game_versions, m_loaders });
-        auto latest_ver = api.getLatestVersion({ pack, m_game_versions, m_loaders });
 
         // Check if we were aborted while getting the latest version
         if (m_was_aborted) {
@@ -156,15 +156,15 @@ void FlameCheckUpdate::executeTask()
 
         if (!latest_ver.hash.isEmpty() && (mod->metadata()->hash != latest_ver.hash || mod->status() == ModStatus::NotInstalled)) {
             // Fake pack with the necessary info to pass to the download task :)
-            ModPlatform::IndexedPack pack;
+            auto pack = std::make_shared<ModPlatform::IndexedPack>();
-            pack.name = mod->name();
+            pack->name = mod->name();
-            pack.slug = mod->metadata()->slug;
+            pack->slug = mod->metadata()->slug;
-            pack.addonId = mod->metadata()->project_id;
+            pack->addonId = mod->metadata()->project_id;
-            pack.websiteUrl = mod->homeurl();
+            pack->websiteUrl = mod->homeurl();
             for (auto& author : mod->authors())
-                pack.authors.append({ author });
+                pack->authors.append({ author });
-            pack.description = mod->description();
+            pack->description = mod->description();
-            pack.provider = ModPlatform::ResourceProvider::FLAME;
+            pack->provider = ModPlatform::ResourceProvider::FLAME;
 
             auto old_version = mod->version();
             if (old_version.isEmpty() && mod->status() != ModStatus::NotInstalled) {
@@ -173,7 +173,7 @@ void FlameCheckUpdate::executeTask()
             }
 
             auto download_task = makeShared<ResourceDownloadTask>(pack, latest_ver, m_mods_folder);
-            m_updatable.emplace_back(pack.name, mod->metadata()->hash, old_version, latest_ver.version,
+            m_updatable.emplace_back(pack->name, mod->metadata()->hash, old_version, latest_ver.version,
                                      api.getModFileChangelog(latest_ver.addonId.toInt(), latest_ver.fileId.toInt()),
                                      ModPlatform::ResourceProvider::FLAME, download_task);
         }

launcher/modplatform/modrinth/ModrinthCheckUpdate.cpp

@@ -112,7 +112,8 @@ void ModrinthCheckUpdate::executeTask()
                 // so we may want to filter it
                 QString loader_filter;
                 if (m_loaders.has_value()) {
-                    static auto flags = { ResourceAPI::ModLoaderType::Forge, ResourceAPI::ModLoaderType::Fabric, ResourceAPI::ModLoaderType::Quilt };
+                    static auto flags = { ResourceAPI::ModLoaderType::Forge, ResourceAPI::ModLoaderType::Fabric,
+                                          ResourceAPI::ModLoaderType::Quilt };
                     for (auto flag : flags) {
                         if (m_loaders.value().testFlag(flag)) {
                             loader_filter = api.getModLoaderString(flag);
@@ -122,7 +123,8 @@ void ModrinthCheckUpdate::executeTask()
                 }
 
                 // Currently, we rely on a couple heuristics to determine whether an update is actually available or not:
-                // - The file needs to be preferred: It is either the primary file, or the one found via (explicit) usage of the loader_filter
+                // - The file needs to be preferred: It is either the primary file, or the one found via (explicit) usage of the
+                // loader_filter
                 // - The version reported by the JAR is different from the version reported by the indexed version (it's usually the case)
                 // Such is the pain of having arbitrary files for a given version .-.
 
@@ -149,19 +151,19 @@ void ModrinthCheckUpdate::executeTask()
                         continue;
 
                     // Fake pack with the necessary info to pass to the download task :)
-                    ModPlatform::IndexedPack pack;
+                    auto pack = std::make_shared<ModPlatform::IndexedPack>();
-                    pack.name = mod->name();
+                    pack->name = mod->name();
-                    pack.slug = mod->metadata()->slug;
+                    pack->slug = mod->metadata()->slug;
-                    pack.addonId = mod->metadata()->project_id;
+                    pack->addonId = mod->metadata()->project_id;
-                    pack.websiteUrl = mod->homeurl();
+                    pack->websiteUrl = mod->homeurl();
                     for (auto& author : mod->authors())
-                        pack.authors.append({ author });
+                        pack->authors.append({ author });
-                    pack.description = mod->description();
+                    pack->description = mod->description();
-                    pack.provider = ModPlatform::ResourceProvider::MODRINTH;
+                    pack->provider = ModPlatform::ResourceProvider::MODRINTH;
 
                     auto download_task = makeShared<ResourceDownloadTask>(pack, project_ver, m_mods_folder);
 
-                    m_updatable.emplace_back(pack.name, hash, mod->version(), project_ver.version_number, project_ver.changelog,
+                    m_updatable.emplace_back(pack->name, hash, mod->version(), project_ver.version_number, project_ver.changelog,
                                              ModPlatform::ResourceProvider::MODRINTH, download_task);
                 }
             }

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);
+}

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();
+};

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);
+    auto task = Net::Download::makeCached(QUrl(BuildConfig.TRANSLATIONS_BASE_URL + "index_v2.json"), entry);
-    d->m_index_job->addNetAction(d->m_index_task);
+    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();

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"
@@ -199,7 +200,6 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWi
         helpMenuButton->setPopupMode(QToolButton::InstantPopup);
 
         auto accountMenuButton = dynamic_cast<QToolButton*>(ui->mainToolBar->widgetForAction(ui->actionAccountsButton));
-        ui->actionAccountsButton->setMenu(ui->accountsMenu);
         accountMenuButton->setPopupMode(QToolButton::InstantPopup);
     }
 
@@ -397,6 +397,8 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWi
     // removing this looks stupid
     view->setFocus();
 
+    ui->actionExportInstance->setMenu(ui->exportInstanceMenu);
+
     retranslateUi();
 }
 
@@ -414,15 +416,6 @@ void MainWindow::keyReleaseEvent(QKeyEvent *event)
 
 void MainWindow::retranslateUi()
 {
-    auto accounts = APPLICATION->accounts();
-    MinecraftAccountPtr defaultAccount = accounts->defaultAccount();
-    if(defaultAccount) {
-        auto profileLabel = profileInUseFilter(defaultAccount->profileName(), defaultAccount->isInUse());
-        ui->actionAccountsButton->setText(profileLabel);
-    }
-    else {
-        ui->actionAccountsButton->setText(tr("Accounts"));
-    }
 
     if (m_selectedInstance) {
         m_statusLeft->setText(m_selectedInstance->getStatusbarDescription());
@@ -432,6 +425,12 @@ void MainWindow::retranslateUi()
 
     ui->retranslateUi(this);
 
+    MinecraftAccountPtr defaultAccount = APPLICATION->accounts()->defaultAccount();
+    if(defaultAccount) {
+        auto profileLabel = profileInUseFilter(defaultAccount->profileName(), defaultAccount->isInUse());
+        ui->actionAccountsButton->setText(profileLabel);
+    }
+
     changeIconButton->setToolTip(ui->actionChangeInstIcon->toolTip());
     renameButton->setToolTip(ui->actionRenameInstance->toolTip());
 
@@ -673,6 +672,15 @@ void MainWindow::repopulateAccountsMenu()
 {
     ui->accountsMenu->clear();
 
+    // NOTE: this is done so the accounts button text is not set to the accounts menu title
+    QMenu *accountsButtonMenu = ui->actionAccountsButton->menu();
+    if (accountsButtonMenu) {
+        accountsButtonMenu->clear();
+    } else {
+        accountsButtonMenu = new QMenu(this);
+        ui->actionAccountsButton->setMenu(accountsButtonMenu);
+    }
+
     auto accounts = APPLICATION->accounts();
     MinecraftAccountPtr defaultAccount = accounts->defaultAccount();
 
@@ -687,6 +695,8 @@ void MainWindow::repopulateAccountsMenu()
         }
     }
 
+    QActionGroup* accountsGroup = new QActionGroup(this);
+
     if (accounts->count() <= 0)
     {
         ui->actionNoAccountsAdded->setEnabled(false);
@@ -702,6 +712,7 @@ void MainWindow::repopulateAccountsMenu()
             QAction *action = new QAction(profileLabel, this);
             action->setData(i);
             action->setCheckable(true);
+            action->setActionGroup(accountsGroup);
             if (defaultAccount == account)
             {
                 action->setChecked(true);
@@ -730,6 +741,7 @@ void MainWindow::repopulateAccountsMenu()
 
     ui->actionNoDefaultAccount->setData(-1);
     ui->actionNoDefaultAccount->setChecked(!defaultAccount);
+    ui->actionNoDefaultAccount->setActionGroup(accountsGroup);
 
     ui->accountsMenu->addAction(ui->actionNoDefaultAccount);
 
@@ -737,6 +749,8 @@ void MainWindow::repopulateAccountsMenu()
 
     ui->accountsMenu->addSeparator();
     ui->accountsMenu->addAction(ui->actionManageAccounts);
+
+    accountsButtonMenu->addActions(ui->accountsMenu->actions());
 }
 
 void MainWindow::updatesAllowedChanged(bool allowed)
@@ -1359,7 +1373,7 @@ void MainWindow::on_actionDeleteInstance_triggered()
     APPLICATION->instances()->deleteInstance(id);
 }
 
-void MainWindow::on_actionExportInstance_triggered()
+void MainWindow::on_actionExportInstanceZip_triggered()
 {
     if (m_selectedInstance)
     {
@@ -1368,6 +1382,15 @@ 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)

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();
 

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">
+  </action>
-    <string>Ctrl+E</string>
+  <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">

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"

launcher/ui/dialogs/ExportInstanceDialog.h

@@ -1,4 +1,24 @@
-/* Copyright 2013-2021 MultiMC Contributors
+// 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/>.
+ *
+ * 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.
@@ -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);

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);
+}

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;
+};

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>

launcher/ui/dialogs/ResourceDownloadDialog.cpp

@@ -20,14 +20,15 @@
 #include "ResourceDownloadDialog.h"
 
 #include <QPushButton>
+#include <algorithm>
 
 #include "Application.h"
 #include "ResourceDownloadTask.h"
 
 #include "minecraft/mod/ModFolderModel.h"
 #include "minecraft/mod/ResourcePackFolderModel.h"
-#include "minecraft/mod/TexturePackFolderModel.h"
 #include "minecraft/mod/ShaderPackFolderModel.h"
+#include "minecraft/mod/TexturePackFolderModel.h"
 
 #include "ui/dialogs/ReviewMessageBox.h"
 
@@ -41,7 +42,10 @@
 namespace ResourceDownload {
 
 ResourceDownloadDialog::ResourceDownloadDialog(QWidget* parent, const std::shared_ptr<ResourceFolderModel> base_model)
-    : QDialog(parent), m_base_model(base_model), m_buttons(QDialogButtonBox::Help | QDialogButtonBox::Ok | QDialogButtonBox::Cancel), m_vertical_layout(this)
+    : QDialog(parent)
+    , m_base_model(base_model)
+    , m_buttons(QDialogButtonBox::Help | QDialogButtonBox::Ok | QDialogButtonBox::Cancel)
+    , m_vertical_layout(this)
 {
     setObjectName(QStringLiteral("ResourceDownloadDialog"));
 
@@ -102,7 +106,8 @@ void ResourceDownloadDialog::initializeContainer()
 void ResourceDownloadDialog::connectButtons()
 {
     auto OkButton = m_buttons.button(QDialogButtonBox::Ok);
-    OkButton->setToolTip(tr("Opens a new popup to review your selected %1 and confirm your selection. Shortcut: Ctrl+Return").arg(resourcesString()));
+    OkButton->setToolTip(
+        tr("Opens a new popup to review your selected %1 and confirm your selection. Shortcut: Ctrl+Return").arg(resourcesString()));
     connect(OkButton, &QPushButton::clicked, this, &ResourceDownloadDialog::confirm);
 
     auto CancelButton = m_buttons.button(QDialogButtonBox::Cancel);
@@ -114,21 +119,24 @@ void ResourceDownloadDialog::connectButtons()
 
 void ResourceDownloadDialog::confirm()
 {
-    auto keys = m_selected.keys();
+    auto selected = getTasks();
-    keys.sort(Qt::CaseInsensitive);
+    std::sort(selected.begin(), selected.end(), [](const DownloadTaskPtr& a, const DownloadTaskPtr& b) {
+        return QString::compare(a->getName(), b->getName(), Qt::CaseInsensitive) < 0;
+    });
 
     auto confirm_dialog = ReviewMessageBox::create(this, tr("Confirm %1 to download").arg(resourcesString()));
     confirm_dialog->retranslateUi(resourcesString());
 
-    for (auto& task : keys) {
+    for (auto& task : selected) {
-        auto selected = m_selected.constFind(task).value();
+        confirm_dialog->appendResource({ task->getName(), task->getFilename(), task->getCustomPath() });
-        confirm_dialog->appendResource({ task, selected->getFilename(), selected->getCustomPath() });
     }
 
     if (confirm_dialog->exec()) {
         auto deselected = confirm_dialog->deselectedResources();
-        for (auto name : deselected) {
+        for (auto page : m_container->getPages()) {
-            m_selected.remove(name);
+            auto res = static_cast<ResourcePage*>(page);
+            for (auto name : deselected)
+                res->removeResourceFromPage(name);
         }
 
         this->accept();
@@ -145,46 +153,39 @@ ResourcePage* ResourceDownloadDialog::getSelectedPage()
     return m_selectedPage;
 }
 
-void ResourceDownloadDialog::addResource(ModPlatform::IndexedPack& pack, ModPlatform::IndexedVersion& ver, bool is_indexed)
+void ResourceDownloadDialog::addResource(ModPlatform::IndexedPack::Ptr pack, ModPlatform::IndexedVersion& ver)
 {
-    removeResource(pack, ver);
+    removeResource(pack->name);
-
+    m_selectedPage->addResourceToPage(pack, ver, getBaseModel());
-    ver.is_currently_selected = true;
+    setButtonStatus();
-    m_selected.insert(pack.name, makeShared<ResourceDownloadTask>(pack, ver, getBaseModel(), is_indexed));
-
-    m_buttons.button(QDialogButtonBox::Ok)->setEnabled(!m_selected.isEmpty());
 }
 
-static ModPlatform::IndexedVersion& getVersionWithID(ModPlatform::IndexedPack& pack, QVariant id)
+void ResourceDownloadDialog::removeResource(const QString& pack_name)
 {
-    Q_ASSERT(pack.versionsLoaded);
+    for (auto page : m_container->getPages()) {
-    auto it = std::find_if(pack.versions.begin(), pack.versions.end(), [id](auto const& v) { return v.fileId == id; });
+        static_cast<ResourcePage*>(page)->removeResourceFromPage(pack_name);
-    Q_ASSERT(it != pack.versions.end());
+    }
-    return *it;
+    setButtonStatus();
 }
 
-void ResourceDownloadDialog::removeResource(ModPlatform::IndexedPack& pack, ModPlatform::IndexedVersion& ver)
+void ResourceDownloadDialog::setButtonStatus()
 {
-    if (auto selected_task_it = m_selected.find(pack.name); selected_task_it != m_selected.end()) {
+    auto selected = false;
-        auto selected_task = *selected_task_it;
+    for (auto page : m_container->getPages()) {
-        auto old_version_id = selected_task->getVersionID();
+        auto res = static_cast<ResourcePage*>(page);
-
+        selected = selected || res->hasSelectedPacks();
-        // If the new and old version IDs don't match, search for the old one and deselect it.
-        if (ver.fileId != old_version_id)
-            getVersionWithID(pack, old_version_id).is_currently_selected = false;
     }
-
+    m_buttons.button(QDialogButtonBox::Ok)->setEnabled(selected);
-    // Deselect the new version too, since all versions of that pack got removed.
-    ver.is_currently_selected = false;
-
-    m_selected.remove(pack.name);
-
-    m_buttons.button(QDialogButtonBox::Ok)->setEnabled(!m_selected.isEmpty());
 }
 
 const QList<ResourceDownloadDialog::DownloadTaskPtr> ResourceDownloadDialog::getTasks()
 {
-    return m_selected.values();
+    QList<DownloadTaskPtr> selected;
+    for (auto page : m_container->getPages()) {
+        auto res = static_cast<ResourcePage*>(page);
+        selected.append(res->selectedPacks());
+    }
+    return selected;
 }
 
 void ResourceDownloadDialog::selectedPageChanged(BasePage* previous, BasePage* selected)
@@ -205,8 +206,6 @@ void ResourceDownloadDialog::selectedPageChanged(BasePage* previous, BasePage* s
     m_selectedPage->setSearchTerm(prev_page->getSearchTerm());
 }
 
-
-
 ModDownloadDialog::ModDownloadDialog(QWidget* parent, const std::shared_ptr<ModFolderModel>& mods, BaseInstance* instance)
     : ResourceDownloadDialog(parent, mods), m_instance(instance)
 {
@@ -232,7 +231,6 @@ QList<BasePage*> ModDownloadDialog::getPages()
     return pages;
 }
 
-
 ResourcePackDownloadDialog::ResourcePackDownloadDialog(QWidget* parent,
                                                        const std::shared_ptr<ResourcePackFolderModel>& resource_packs,
                                                        BaseInstance* instance)
@@ -255,10 +253,11 @@ QList<BasePage*> ResourcePackDownloadDialog::getPages()
     if (APPLICATION->capabilities() & Application::SupportsFlame)
         pages.append(FlameResourcePackPage::create(this, *m_instance));
 
+    m_selectedPage = dynamic_cast<ResourcePackResourcePage*>(pages[0]);
+
     return pages;
 }
 
-
 TexturePackDownloadDialog::TexturePackDownloadDialog(QWidget* parent,
                                                      const std::shared_ptr<TexturePackFolderModel>& resource_packs,
                                                      BaseInstance* instance)
@@ -281,10 +280,11 @@ QList<BasePage*> TexturePackDownloadDialog::getPages()
     if (APPLICATION->capabilities() & Application::SupportsFlame)
         pages.append(FlameTexturePackPage::create(this, *m_instance));
 
+    m_selectedPage = dynamic_cast<TexturePackResourcePage*>(pages[0]);
+
     return pages;
 }
 
-
 ShaderPackDownloadDialog::ShaderPackDownloadDialog(QWidget* parent,
                                                    const std::shared_ptr<ShaderPackFolderModel>& shaders,
                                                    BaseInstance* instance)
@@ -305,6 +305,8 @@ QList<BasePage*> ShaderPackDownloadDialog::getPages()
 
     pages.append(ModrinthShaderPackPage::create(this, *m_instance));
 
+    m_selectedPage = dynamic_cast<ShaderPackResourcePage*>(pages[0]);
+
     return pages;
 }
 

launcher/ui/dialogs/ResourceDownloadDialog.h

@@ -62,8 +62,8 @@ class ResourceDownloadDialog : public QDialog, public BasePageProvider {
     bool selectPage(QString pageId);
     ResourcePage* getSelectedPage();
 
-    void addResource(ModPlatform::IndexedPack&, ModPlatform::IndexedVersion&, bool is_indexed = false);
+    void addResource(ModPlatform::IndexedPack::Ptr, ModPlatform::IndexedVersion&);
-    void removeResource(ModPlatform::IndexedPack&, ModPlatform::IndexedVersion&);
+    void removeResource(const QString&);
 
     const QList<DownloadTaskPtr> getTasks();
     [[nodiscard]] const std::shared_ptr<ResourceFolderModel> getBaseModel() const { return m_base_model; }
@@ -79,6 +79,7 @@ class ResourceDownloadDialog : public QDialog, public BasePageProvider {
 
    protected:
     [[nodiscard]] virtual QString geometrySaveKey() const { return ""; }
+    void setButtonStatus();
 
    protected:
     const std::shared_ptr<ResourceFolderModel> m_base_model;
@@ -88,12 +89,8 @@ class ResourceDownloadDialog : public QDialog, public BasePageProvider {
 
     QDialogButtonBox m_buttons;
     QVBoxLayout m_vertical_layout;
-
-    QHash<QString, DownloadTaskPtr> m_selected;
 };
 
-
-
 class ModDownloadDialog final : public ResourceDownloadDialog {
     Q_OBJECT
 
@@ -153,9 +150,7 @@ class ShaderPackDownloadDialog final : public ResourceDownloadDialog {
     Q_OBJECT
 
    public:
-    explicit ShaderPackDownloadDialog(QWidget* parent,
+    explicit ShaderPackDownloadDialog(QWidget* parent, const std::shared_ptr<ShaderPackFolderModel>& shader_packs, BaseInstance* instance);
-                                      const std::shared_ptr<ShaderPackFolderModel>& shader_packs,
-                                      BaseInstance* instance);
     ~ShaderPackDownloadDialog() override = default;
 
     //: String that gets appended to the shader pack download dialog title ("Download " + resourcesString())

launcher/ui/pages/global/APIPage.cpp

@@ -184,7 +184,7 @@ void APIPage::applySettings()
         metaURL.setScheme("https");
     }
 
-    s->set("MetaURLOverride", metaURL);
+    s->set("MetaURLOverride", metaURL.toString());
     QString flameKey = ui->flameKey->text();
     s->set("FlameKeyOverride", flameKey);
     QString modrinthToken = ui->modrinthToken->text();

launcher/ui/pages/instance/InstanceSettingsPage.cpp

@@ -60,15 +60,13 @@ InstanceSettingsPage::InstanceSettingsPage(BaseInstance *inst, QWidget *parent)
     m_settings = inst->settings();
     ui->setupUi(this);
 
-    accountMenu = new QMenu(this);
-    // Use undocumented property... https://stackoverflow.com/questions/7121718/create-a-scrollbar-in-a-submenu-qt
-    accountMenu->setStyleSheet("QMenu { menu-scrollable: 1; }");
-    ui->instanceAccountSelector->setMenu(accountMenu);
-
     connect(ui->openGlobalJavaSettingsButton, &QCommandLinkButton::clicked, this, &InstanceSettingsPage::globalSettingsButtonClicked);
     connect(APPLICATION, &Application::globalSettingsAboutToOpen, this, &InstanceSettingsPage::applySettings);
     connect(APPLICATION, &Application::globalSettingsClosed, this, &InstanceSettingsPage::loadSettings);
+    connect(ui->instanceAccountSelector, QOverload<int>::of(&QComboBox::currentIndexChanged), this, &InstanceSettingsPage::changeInstanceAccount);
     loadSettings();
+
+
     updateThresholds();
 }
 
@@ -454,36 +452,17 @@ void InstanceSettingsPage::on_javaTestBtn_clicked()
 
 void InstanceSettingsPage::updateAccountsMenu()
 {
-    accountMenu->clear();
+    ui->instanceAccountSelector->clear();
-
     auto accounts = APPLICATION->accounts();
     int accountIndex = accounts->findAccountByProfileId(m_settings->get("InstanceAccountId").toString());
-    MinecraftAccountPtr defaultAccount = accounts->defaultAccount();
-
-    if (accountIndex != -1 && accounts->at(accountIndex)) {
-        defaultAccount = accounts->at(accountIndex);
-    }
-
-    if (defaultAccount) {
-        ui->instanceAccountSelector->setText(defaultAccount->profileName());
-        ui->instanceAccountSelector->setIcon(getFaceForAccount(defaultAccount));
-    } else {
-        ui->instanceAccountSelector->setText(tr("No default account"));
-        ui->instanceAccountSelector->setIcon(APPLICATION->getThemedIcon("noaccount"));
-    }
 
     for (int i = 0; i < accounts->count(); i++) {
         MinecraftAccountPtr account = accounts->at(i);
-        QAction* action = new QAction(account->profileName(), this);
+        ui->instanceAccountSelector->addItem(getFaceForAccount(account), account->profileName(), i);
-        action->setData(i);
+        if (i == accountIndex)
-        action->setCheckable(true);
+            ui->instanceAccountSelector->setCurrentIndex(i);
-        if (accountIndex == i) {
-            action->setChecked(true);
-        }
-        action->setIcon(getFaceForAccount(account));
-        accountMenu->addAction(action);
-        connect(action, SIGNAL(triggered(bool)), this, SLOT(changeInstanceAccount()));
     }
+
 }
 
 QIcon InstanceSettingsPage::getFaceForAccount(MinecraftAccountPtr account)
@@ -495,20 +474,13 @@ QIcon InstanceSettingsPage::getFaceForAccount(MinecraftAccountPtr account)
     return APPLICATION->getThemedIcon("noaccount");
 }
 
-void InstanceSettingsPage::changeInstanceAccount()
+void InstanceSettingsPage::changeInstanceAccount(int index)
 {
-    QAction* sAction = (QAction*)sender();
-
-    Q_ASSERT(sAction->data().type() == QVariant::Type::Int);
-
-    QVariant data = sAction->data();
-    int index = data.toInt();
     auto accounts = APPLICATION->accounts();
+    if (index != -1 && accounts->at(index) && ui->instanceAccountGroupBox->isChecked()) {
         auto account = accounts->at(index);
         m_settings->set("InstanceAccountId", account->profileId());
-
+    }
-    ui->instanceAccountSelector->setText(account->profileName());
-    ui->instanceAccountSelector->setIcon(getFaceForAccount(account));
 }
 
 void InstanceSettingsPage::on_maxMemSpinBox_valueChanged(int i)

launcher/ui/pages/instance/InstanceSettingsPage.h

@@ -95,12 +95,11 @@ private slots:
 
     void updateAccountsMenu();
     QIcon getFaceForAccount(MinecraftAccountPtr account);
-    void changeInstanceAccount();
+    void changeInstanceAccount(int index);
 
 private:
     Ui::InstanceSettingsPage *ui;
     BaseInstance *m_instance;
     SettingsObjectPtr m_settings;
     unique_qobject_ptr<JavaCommon::TestCheck> checker;
-    QMenu *accountMenu = nullptr;
 };

launcher/ui/pages/instance/InstanceSettingsPage.ui

@@ -636,14 +636,7 @@
              </widget>
             </item>
             <item row="0" column="1">
-             <widget class="QToolButton" name="instanceAccountSelector">
+             <widget class="QComboBox" name="instanceAccountSelector"/>
-              <property name="popupMode">
-               <enum>QToolButton::InstantPopup</enum>
-              </property>
-              <property name="toolButtonStyle">
-               <enum>Qt::ToolButtonTextBesideIcon</enum>
-              </property>
-             </widget>
             </item>
            </layout>
           </item>

launcher/ui/pages/modplatform/ModPage.cpp

@@ -55,8 +55,7 @@
 
 namespace ResourceDownload {
 
-ModPage::ModPage(ModDownloadDialog* dialog, BaseInstance& instance)
+ModPage::ModPage(ModDownloadDialog* dialog, BaseInstance& instance) : ResourcePage(dialog, instance)
-    : ResourcePage(dialog, instance)
 {
     connect(m_ui->searchButton, &QPushButton::clicked, this, &ModPage::triggerSearch);
     connect(m_ui->resourceFilterButton, &QPushButton::clicked, this, &ModPage::filterMods);
@@ -75,12 +74,10 @@ void ModPage::setFilterWidget(unique_qobject_ptr<ModFilterWidget>& widget)
     m_filter_widget->setInstance(&static_cast<MinecraftInstance&>(m_base_instance));
     m_filter = m_filter_widget->getFilter();
 
-    connect(m_filter_widget.get(), &ModFilterWidget::filterChanged, this, [&]{
+    connect(m_filter_widget.get(), &ModFilterWidget::filterChanged, this,
-        m_ui->searchButton->setStyleSheet("text-decoration: underline");
+            [&] { m_ui->searchButton->setStyleSheet("text-decoration: underline"); });
-    });
+    connect(m_filter_widget.get(), &ModFilterWidget::filterUnchanged, this,
-    connect(m_filter_widget.get(), &ModFilterWidget::filterUnchanged, this, [&]{
+            [&] { m_ui->searchButton->setStyleSheet("text-decoration: none"); });
-        m_ui->searchButton->setStyleSheet("text-decoration: none");
-    });
 }
 
 /******** Callbacks to events in the UI (set up in the derived classes) ********/
@@ -125,8 +122,8 @@ void ModPage::updateVersionList()
     QString mcVersion = packProfile->getComponentVersion("net.minecraft");
 
     auto current_pack = getCurrentPack();
-    for (int i = 0; i < current_pack.versions.size(); i++) {
+    for (int i = 0; i < current_pack->versions.size(); i++) {
-        auto version = current_pack.versions[i];
+        auto version = current_pack->versions[i];
         bool valid = false;
         for (auto& mcVer : m_filter->versions) {
             // NOTE: Flame doesn't care about loader, so passing it changes nothing.
@@ -148,10 +145,12 @@ void ModPage::updateVersionList()
     updateSelectionButton();
 }
 
-void ModPage::addResourceToDialog(ModPlatform::IndexedPack& pack, ModPlatform::IndexedVersion& version)
+void ModPage::addResourceToPage(ModPlatform::IndexedPack::Ptr pack,
+                                ModPlatform::IndexedVersion& version,
+                                const std::shared_ptr<ResourceFolderModel> base_model)
 {
     bool is_indexed = !APPLICATION->settings()->get("ModMetadataDisabled").toBool();
-    m_parent_dialog->addResource(pack, version, is_indexed);
+    m_model->addPack(pack, version, base_model, is_indexed);
 }
 
 }  // namespace ResourceDownload

launcher/ui/pages/modplatform/ModPage.h

@@ -8,8 +8,8 @@
 
 #include "modplatform/ModIndex.h"
 
-#include "ui/pages/modplatform/ResourcePage.h"
 #include "ui/pages/modplatform/ModModel.h"
+#include "ui/pages/modplatform/ResourcePage.h"
 #include "ui/widgets/ModFilterWidget.h"
 
 namespace Ui {
@@ -31,7 +31,8 @@ class ModPage : public ResourcePage {
         auto page = new T(dialog, instance);
         auto model = static_cast<ModModel*>(page->getModel());
 
-        auto filter_widget = ModFilterWidget::create(static_cast<MinecraftInstance&>(instance).getPackProfile()->getComponentVersion("net.minecraft"), page);
+        auto filter_widget =
+            ModFilterWidget::create(static_cast<MinecraftInstance&>(instance).getPackProfile()->getComponentVersion("net.minecraft"), page);
         page->setFilterWidget(filter_widget);
         model->setFilter(page->getFilter());
 
@@ -48,9 +49,13 @@ class ModPage : public ResourcePage {
 
     [[nodiscard]] QMap<QString, QString> urlHandlers() const override;
 
-    void addResourceToDialog(ModPlatform::IndexedPack&, ModPlatform::IndexedVersion&) override;
+    void addResourceToPage(ModPlatform::IndexedPack::Ptr,
+                           ModPlatform::IndexedVersion&,
+                           const std::shared_ptr<ResourceFolderModel>) override;
 
-    virtual auto validateVersion(ModPlatform::IndexedVersion& ver, QString mineVer, std::optional<ResourceAPI::ModLoaderTypes> loaders = {}) const -> bool = 0;
+    virtual auto validateVersion(ModPlatform::IndexedVersion& ver,
+                                 QString mineVer,
+                                 std::optional<ResourceAPI::ModLoaderTypes> loaders = {}) const -> bool = 0;
 
     [[nodiscard]] bool supportsFiltering() const override { return true; };
     auto getFilter() const -> const std::shared_ptr<ModFilterWidget::Filter> { return m_filter; }

launcher/ui/pages/modplatform/ResourceModel.cpp

@@ -6,9 +6,11 @@
 
 #include <QCryptographicHash>
 #include <QIcon>
+#include <QList>
 #include <QMessageBox>
 #include <QPixmapCache>
 #include <QUrl>
+#include <algorithm>
 #include <memory>
 
 #include "Application.h"
@@ -65,7 +67,7 @@ auto ResourceModel::data(const QModelIndex& index, int role) const -> QVariant
             return QSize(0, 58);
         case Qt::UserRole: {
             QVariant v;
-            v.setValue(*pack);
+            v.setValue(pack);
             return v;
         }
             // Custom data
@@ -103,7 +105,7 @@ bool ResourceModel::setData(const QModelIndex& index, const QVariant& value, int
     if (pos >= m_packs.size() || pos < 0 || !index.isValid())
         return false;
 
-    m_packs[pos] = std::make_shared<ModPlatform::IndexedPack>(value.value<ModPlatform::IndexedPack>());
+    m_packs[pos] = value.value<ModPlatform::IndexedPack::Ptr>();
     emit dataChanged(index, index);
 
     return true;
@@ -336,6 +338,14 @@ void ResourceModel::searchRequestSucceeded(QJsonDocument& doc)
         ModPlatform::IndexedPack::Ptr pack = std::make_shared<ModPlatform::IndexedPack>();
         try {
             loadIndexedPack(*pack, packObj);
+            if (auto sel = std::find_if(m_selected.begin(), m_selected.end(),
+                                        [&pack](const DownloadTaskPtr i) {
+                                            const auto ipack = i->getPack();
+                                            return ipack->provider == pack->provider && ipack->addonId == pack->addonId;
+                                        });
+                sel != m_selected.end()) {
+                newList.append(sel->get()->getPack());
+            } else
                 newList.append(pack);
         } catch (const JSONValidationError& e) {
             qWarning() << "Error while loading resource from " << debugName() << ": " << e.cause();
@@ -390,15 +400,15 @@ void ResourceModel::searchRequestAborted()
 
 void ResourceModel::versionRequestSucceeded(QJsonDocument& doc, ModPlatform::IndexedPack& pack, const QModelIndex& index)
 {
-    auto current_pack = data(index, Qt::UserRole).value<ModPlatform::IndexedPack>();
+    auto current_pack = data(index, Qt::UserRole).value<ModPlatform::IndexedPack::Ptr>();
 
     // Check if the index is still valid for this resource or not
-    if (pack.addonId != current_pack.addonId)
+    if (pack.addonId != current_pack->addonId)
         return;
 
     try {
         auto arr = doc.isObject() ? Json::ensureArray(doc.object(), "data") : doc.array();
-        loadIndexedPackVersions(current_pack, arr);
+        loadIndexedPackVersions(*current_pack, arr);
     } catch (const JSONValidationError& e) {
         qDebug() << doc;
         qWarning() << "Error while reading " << debugName() << " resource version: " << e.cause();
@@ -417,15 +427,15 @@ void ResourceModel::versionRequestSucceeded(QJsonDocument& doc, ModPlatform::Ind
 
 void ResourceModel::infoRequestSucceeded(QJsonDocument& doc, ModPlatform::IndexedPack& pack, const QModelIndex& index)
 {
-    auto current_pack = data(index, Qt::UserRole).value<ModPlatform::IndexedPack>();
+    auto current_pack = data(index, Qt::UserRole).value<ModPlatform::IndexedPack::Ptr>();
 
     // Check if the index is still valid for this resource or not
-    if (pack.addonId != current_pack.addonId)
+    if (pack.addonId != current_pack->addonId)
         return;
 
     try {
         auto obj = Json::requireObject(doc);
-        loadExtraPackInfo(current_pack, obj);
+        loadExtraPackInfo(*current_pack, obj);
     } catch (const JSONValidationError& e) {
         qDebug() << doc;
         qWarning() << "Error while reading " << debugName() << " resource info: " << e.cause();
@@ -442,4 +452,39 @@ void ResourceModel::infoRequestSucceeded(QJsonDocument& doc, ModPlatform::Indexe
     emit projectInfoUpdated();
 }
 
+void ResourceModel::addPack(ModPlatform::IndexedPack::Ptr pack,
+                            ModPlatform::IndexedVersion& version,
+                            const std::shared_ptr<ResourceFolderModel> packs,
+                            bool is_indexed,
+                            QString custom_target_folder)
+{
+    version.is_currently_selected = true;
+    m_selected.append(makeShared<ResourceDownloadTask>(pack, version, packs, is_indexed, custom_target_folder));
+}
+
+void ResourceModel::removePack(const QString& rem)
+{
+    auto pred = [&rem](const DownloadTaskPtr i) { return rem == i->getName(); };
+#if QT_VERSION >= QT_VERSION_CHECK(6, 1, 0)
+    m_selected.removeIf(pred);
+#else
+    {
+        for (auto it = m_selected.begin(); it != m_selected.end();)
+            if (pred(*it))
+                it = m_selected.erase(it);
+            else
+                ++it;
+    }
+#endif
+    auto pack = std::find_if(m_packs.begin(), m_packs.end(), [&rem](const ModPlatform::IndexedPack::Ptr i) { return rem == i->name; });
+    if (pack == m_packs.end()) {  // ignore it if is not in the current search
+        return;
+    }
+    if (!pack->get()->versionsLoaded) {
+        return;
+    }
+    for (auto& ver : pack->get()->versions)
+        ver.is_currently_selected = false;
+}
+
 }  // namespace ResourceDownload

launcher/ui/pages/modplatform/ResourceModel.h

@@ -10,6 +10,7 @@
 
 #include "QObjectPtr.h"
 
+#include "ResourceDownloadTask.h"
 #include "modplatform/ResourceAPI.h"
 
 #include "tasks/ConcurrentTask.h"
@@ -29,6 +30,8 @@ class ResourceModel : public QAbstractListModel {
     Q_PROPERTY(QString search_term MEMBER m_search_term WRITE setSearchTerm)
 
    public:
+    using DownloadTaskPtr = shared_qobject_ptr<ResourceDownloadTask>;
+
     ResourceModel(ResourceAPI* api);
     ~ResourceModel() override;
 
@@ -80,6 +83,14 @@ class ResourceModel : public QAbstractListModel {
     /** Gets the icon at the URL for the given index. If it's not fetched yet, fetch it and update when fisinhed. */
     std::optional<QIcon> getIcon(QModelIndex&, const QUrl&);
 
+    void addPack(ModPlatform::IndexedPack::Ptr pack,
+                 ModPlatform::IndexedVersion& version,
+                 const std::shared_ptr<ResourceFolderModel> packs,
+                 bool is_indexed = false,
+                 QString custom_target_folder = {});
+    void removePack(const QString& rem);
+    QList<DownloadTaskPtr> selectedPacks() { return m_selected; }
+
    protected:
     /** Resets the model's data. */
     void clearData();
@@ -124,6 +135,7 @@ class ResourceModel : public QAbstractListModel {
     QSet<QUrl> m_failed_icon_actions;
 
     QList<ModPlatform::IndexedPack::Ptr> m_packs;
+    QList<DownloadTaskPtr> m_selected;
 
     // HACK: We need this to prevent callbacks from calling the model after it has already been deleted.
     // This leaks a tiny bit of memory per time the user has opened a resource dialog. How to make this better?

launcher/ui/pages/modplatform/ResourcePage.cpp

@@ -37,6 +37,7 @@
  */
 
 #include "ResourcePage.h"
+#include "modplatform/ModIndex.h"
 #include "ui_ResourcePage.h"
 
 #include <QDesktopServices>
@@ -158,16 +159,16 @@ void ResourcePage::addSortings()
         m_ui->sortByBox->addItem(sorting.readable_name, QVariant(sorting.index));
 }
 
-bool ResourcePage::setCurrentPack(ModPlatform::IndexedPack pack)
+bool ResourcePage::setCurrentPack(ModPlatform::IndexedPack::Ptr pack)
 {
     QVariant v;
     v.setValue(pack);
     return m_model->setData(m_ui->packView->currentIndex(), v, Qt::UserRole);
 }
 
-ModPlatform::IndexedPack ResourcePage::getCurrentPack() const
+ModPlatform::IndexedPack::Ptr ResourcePage::getCurrentPack() const
 {
-    return m_model->data(m_ui->packView->currentIndex(), Qt::UserRole).value<ModPlatform::IndexedPack>();
+    return m_model->data(m_ui->packView->currentIndex(), Qt::UserRole).value<ModPlatform::IndexedPack::Ptr>();
 }
 
 void ResourcePage::updateUi()
@@ -175,14 +176,14 @@ void ResourcePage::updateUi()
     auto current_pack = getCurrentPack();
 
     QString text = "";
-    QString name = current_pack.name;
+    QString name = current_pack->name;
 
-    if (current_pack.websiteUrl.isEmpty())
+    if (current_pack->websiteUrl.isEmpty())
         text = name;
     else
-        text = "<a href=\"" + current_pack.websiteUrl + "\">" + name + "</a>";
+        text = "<a href=\"" + current_pack->websiteUrl + "\">" + name + "</a>";
 
-    if (!current_pack.authors.empty()) {
+    if (!current_pack->authors.empty()) {
         auto authorToStr = [](ModPlatform::ModpackAuthor& author) -> QString {
             if (author.url.isEmpty()) {
                 return author.name;
@@ -190,44 +191,44 @@ void ResourcePage::updateUi()
             return QString("<a href=\"%1\">%2</a>").arg(author.url, author.name);
         };
         QStringList authorStrs;
-        for (auto& author : current_pack.authors) {
+        for (auto& author : current_pack->authors) {
             authorStrs.push_back(authorToStr(author));
         }
         text += "<br>" + tr(" by ") + authorStrs.join(", ");
     }
 
-    if (current_pack.extraDataLoaded) {
+    if (current_pack->extraDataLoaded) {
-        if (!current_pack.extraData.donate.isEmpty()) {
+        if (!current_pack->extraData.donate.isEmpty()) {
             text += "<br><br>" + tr("Donate information: ");
             auto donateToStr = [](ModPlatform::DonationData& donate) -> QString {
                 return QString("<a href=\"%1\">%2</a>").arg(donate.url, donate.platform);
             };
             QStringList donates;
-            for (auto& donate : current_pack.extraData.donate) {
+            for (auto& donate : current_pack->extraData.donate) {
                 donates.append(donateToStr(donate));
             }
             text += donates.join(", ");
         }
 
-        if (!current_pack.extraData.issuesUrl.isEmpty() || !current_pack.extraData.sourceUrl.isEmpty() ||
+        if (!current_pack->extraData.issuesUrl.isEmpty() || !current_pack->extraData.sourceUrl.isEmpty() ||
-            !current_pack.extraData.wikiUrl.isEmpty() || !current_pack.extraData.discordUrl.isEmpty()) {
+            !current_pack->extraData.wikiUrl.isEmpty() || !current_pack->extraData.discordUrl.isEmpty()) {
             text += "<br><br>" + tr("External links:") + "<br>";
         }
 
-        if (!current_pack.extraData.issuesUrl.isEmpty())
+        if (!current_pack->extraData.issuesUrl.isEmpty())
-            text += "- " + tr("Issues: <a href=%1>%1</a>").arg(current_pack.extraData.issuesUrl) + "<br>";
+            text += "- " + tr("Issues: <a href=%1>%1</a>").arg(current_pack->extraData.issuesUrl) + "<br>";
-        if (!current_pack.extraData.wikiUrl.isEmpty())
+        if (!current_pack->extraData.wikiUrl.isEmpty())
-            text += "- " + tr("Wiki: <a href=%1>%1</a>").arg(current_pack.extraData.wikiUrl) + "<br>";
+            text += "- " + tr("Wiki: <a href=%1>%1</a>").arg(current_pack->extraData.wikiUrl) + "<br>";
-        if (!current_pack.extraData.sourceUrl.isEmpty())
+        if (!current_pack->extraData.sourceUrl.isEmpty())
-            text += "- " + tr("Source code: <a href=%1>%1</a>").arg(current_pack.extraData.sourceUrl) + "<br>";
+            text += "- " + tr("Source code: <a href=%1>%1</a>").arg(current_pack->extraData.sourceUrl) + "<br>";
-        if (!current_pack.extraData.discordUrl.isEmpty())
+        if (!current_pack->extraData.discordUrl.isEmpty())
-            text += "- " + tr("Discord: <a href=%1>%1</a>").arg(current_pack.extraData.discordUrl) + "<br>";
+            text += "- " + tr("Discord: <a href=%1>%1</a>").arg(current_pack->extraData.discordUrl) + "<br>";
     }
 
     text += "<hr>";
 
     m_ui->packDescription->setHtml(
-        text + (current_pack.extraData.body.isEmpty() ? current_pack.description : markdownToHTML(current_pack.extraData.body)));
+        text + (current_pack->extraData.body.isEmpty() ? current_pack->description : markdownToHTML(current_pack->extraData.body)));
     m_ui->packDescription->flush();
 }
 
@@ -239,7 +240,7 @@ void ResourcePage::updateSelectionButton()
     }
 
     m_ui->resourceSelectionButton->setEnabled(true);
-    if (!getCurrentPack().isVersionSelected(m_selected_version_index)) {
+    if (!getCurrentPack()->isVersionSelected(m_selected_version_index)) {
         m_ui->resourceSelectionButton->setText(tr("Select %1 for download").arg(resourceString()));
     } else {
         m_ui->resourceSelectionButton->setText(tr("Deselect %1 for download").arg(resourceString()));
@@ -254,12 +255,12 @@ void ResourcePage::updateVersionList()
     m_ui->versionSelectionBox->clear();
     m_ui->versionSelectionBox->blockSignals(false);
 
-    for (int i = 0; i < current_pack.versions.size(); i++) {
+    for (int i = 0; i < current_pack->versions.size(); i++) {
-        auto& version = current_pack.versions[i];
+        auto& version = current_pack->versions[i];
         if (optedOut(version))
             continue;
 
-        m_ui->versionSelectionBox->addItem(current_pack.versions[i].version, QVariant(i));
+        m_ui->versionSelectionBox->addItem(current_pack->versions[i].version, QVariant(i));
     }
 
     if (m_ui->versionSelectionBox->count() == 0) {
@@ -279,7 +280,7 @@ void ResourcePage::onSelectionChanged(QModelIndex curr, QModelIndex prev)
     auto current_pack = getCurrentPack();
 
     bool request_load = false;
-    if (!current_pack.versionsLoaded) {
+    if (!current_pack->versionsLoaded) {
         m_ui->resourceSelectionButton->setText(tr("Loading versions..."));
         m_ui->resourceSelectionButton->setEnabled(false);
 
@@ -288,7 +289,7 @@ void ResourcePage::onSelectionChanged(QModelIndex curr, QModelIndex prev)
         updateVersionList();
     }
 
-    if (!current_pack.extraDataLoaded)
+    if (!current_pack->extraDataLoaded)
         request_load = true;
 
     if (request_load)
@@ -308,14 +309,26 @@ void ResourcePage::onVersionSelectionChanged(QString data)
     updateSelectionButton();
 }
 
-void ResourcePage::addResourceToDialog(ModPlatform::IndexedPack& pack, ModPlatform::IndexedVersion& version)
+void ResourcePage::addResourceToDialog(ModPlatform::IndexedPack::Ptr pack, ModPlatform::IndexedVersion& version)
 {
     m_parent_dialog->addResource(pack, version);
 }
 
-void ResourcePage::removeResourceFromDialog(ModPlatform::IndexedPack& pack, ModPlatform::IndexedVersion& version)
+void ResourcePage::removeResourceFromDialog(const QString& pack_name)
 {
-    m_parent_dialog->removeResource(pack, version);
+    m_parent_dialog->removeResource(pack_name);
+}
+
+void ResourcePage::addResourceToPage(ModPlatform::IndexedPack::Ptr pack,
+                                     ModPlatform::IndexedVersion& ver,
+                                     const std::shared_ptr<ResourceFolderModel> base_model)
+{
+    m_model->addPack(pack, ver, base_model);
+}
+
+void ResourcePage::removeResourceFromPage(const QString& name)
+{
+    m_model->removePack(name);
 }
 
 void ResourcePage::onResourceSelected()
@@ -324,12 +337,12 @@ void ResourcePage::onResourceSelected()
         return;
 
     auto current_pack = getCurrentPack();
-    if (!current_pack.versionsLoaded)
+    if (!current_pack->versionsLoaded)
         return;
 
-    auto& version = current_pack.versions[m_selected_version_index];
+    auto& version = current_pack->versions[m_selected_version_index];
     if (version.is_currently_selected)
-        removeResourceFromDialog(current_pack, version);
+        removeResourceFromDialog(current_pack->name);
     else
         addResourceToDialog(current_pack, version);
 
@@ -340,7 +353,7 @@ void ResourcePage::onResourceSelected()
     updateSelectionButton();
 
     /* Force redraw on the resource list when the selection changes */
-    m_ui->packView->adjustSize();
+    m_ui->packView->repaint();
 }
 
 void ResourcePage::openUrl(const QUrl& url)
@@ -370,7 +383,7 @@ void ResourcePage::openUrl(const QUrl& url)
         const QString slug = match.captured(1);
 
         // ensure the user isn't opening the same mod
-        if (slug != getCurrentPack().slug) {
+        if (slug != getCurrentPack()->slug) {
             m_parent_dialog->selectPage(page);
 
             auto newPage = m_parent_dialog->getSelectedPage();

launcher/ui/pages/modplatform/ResourcePage.h

@@ -7,10 +7,12 @@
 #include <QTimer>
 #include <QWidget>
 
+#include "ResourceDownloadTask.h"
 #include "modplatform/ModIndex.h"
 #include "modplatform/ResourceAPI.h"
 
 #include "ui/pages/BasePage.h"
+#include "ui/pages/modplatform/ResourceModel.h"
 #include "ui/widgets/ProgressWidget.h"
 
 namespace Ui {
@@ -27,6 +29,7 @@ class ResourceModel;
 class ResourcePage : public QWidget, public BasePage {
     Q_OBJECT
    public:
+    using DownloadTaskPtr = shared_qobject_ptr<ResourceDownloadTask>;
     ~ResourcePage() override;
 
     /* Affects what the user sees */
@@ -57,8 +60,8 @@ class ResourcePage : public QWidget, public BasePage {
     /** Programatically set the term in the search bar. */
     void setSearchTerm(QString);
 
-    [[nodiscard]] bool setCurrentPack(ModPlatform::IndexedPack);
+    [[nodiscard]] bool setCurrentPack(ModPlatform::IndexedPack::Ptr);
-    [[nodiscard]] auto getCurrentPack() const -> ModPlatform::IndexedPack;
+    [[nodiscard]] auto getCurrentPack() const -> ModPlatform::IndexedPack::Ptr;
     [[nodiscard]] auto getDialog() const -> const ResourceDownloadDialog* { return m_parent_dialog; }
     [[nodiscard]] auto getModel() const -> ResourceModel* { return m_model; }
 
@@ -72,8 +75,13 @@ class ResourcePage : public QWidget, public BasePage {
     virtual void updateSelectionButton();
     virtual void updateVersionList();
 
-    virtual void addResourceToDialog(ModPlatform::IndexedPack&, ModPlatform::IndexedVersion&);
+    void addResourceToDialog(ModPlatform::IndexedPack::Ptr, ModPlatform::IndexedVersion&);
-    virtual void removeResourceFromDialog(ModPlatform::IndexedPack&, ModPlatform::IndexedVersion&);
+    void removeResourceFromDialog(const QString& pack_name);
+    virtual void removeResourceFromPage(const QString& name);
+    virtual void addResourceToPage(ModPlatform::IndexedPack::Ptr, ModPlatform::IndexedVersion&, const std::shared_ptr<ResourceFolderModel>);
+
+    QList<DownloadTaskPtr> selectedPacks() { return m_model->selectedPacks(); }
+    bool hasSelectedPacks() { return !(m_model->selectedPacks().isEmpty()); }
 
    protected slots:
     virtual void triggerSearch() {}

launcher/ui/pages/modplatform/ShaderPackPage.cpp

@@ -13,8 +13,7 @@
 
 namespace ResourceDownload {
 
-ShaderPackResourcePage::ShaderPackResourcePage(ShaderPackDownloadDialog* dialog, BaseInstance& instance)
+ShaderPackResourcePage::ShaderPackResourcePage(ShaderPackDownloadDialog* dialog, BaseInstance& instance) : ResourcePage(dialog, instance)
-    : ResourcePage(dialog, instance)
 {
     connect(m_ui->searchButton, &QPushButton::clicked, this, &ShaderPackResourcePage::triggerSearch);
     connect(m_ui->packView, &QListView::doubleClicked, this, &ShaderPackResourcePage::onResourceSelected);
@@ -38,17 +37,20 @@ QMap<QString, QString> ShaderPackResourcePage::urlHandlers() const
 {
     QMap<QString, QString> map;
     map.insert(QRegularExpression::anchoredPattern("(?:www\\.)?modrinth\\.com\\/shaders\\/([^\\/]+)\\/?"), "modrinth");
-    map.insert(QRegularExpression::anchoredPattern("(?:www\\.)?curseforge\\.com\\/minecraft\\/customization\\/([^\\/]+)\\/?"), "curseforge");
+    map.insert(QRegularExpression::anchoredPattern("(?:www\\.)?curseforge\\.com\\/minecraft\\/customization\\/([^\\/]+)\\/?"),
+               "curseforge");
     map.insert(QRegularExpression::anchoredPattern("minecraft\\.curseforge\\.com\\/projects\\/([^\\/]+)\\/?"), "curseforge");
     return map;
 }
 
-void ShaderPackResourcePage::addResourceToDialog(ModPlatform::IndexedPack& pack, ModPlatform::IndexedVersion& version)
+void ShaderPackResourcePage::addResourceToPage(ModPlatform::IndexedPack::Ptr pack,
+                                               ModPlatform::IndexedVersion& version,
+                                               const std::shared_ptr<ResourceFolderModel> base_model)
 {
+    QString custom_target_folder;
     if (version.loaders.contains(QStringLiteral("canvas")))
-        version.custom_target_folder = QStringLiteral("resourcepacks");
+        custom_target_folder = QStringLiteral("resourcepacks");
-
+    m_model->addPack(pack, version, base_model, false, custom_target_folder);
-    m_parent_dialog->addResource(pack, version);
 }
 
 }  // namespace ResourceDownload

launcher/ui/pages/modplatform/ShaderPackPage.h

@@ -38,7 +38,9 @@ class ShaderPackResourcePage : public ResourcePage {
 
     [[nodiscard]] bool supportsFiltering() const override { return false; };
 
-    void addResourceToDialog(ModPlatform::IndexedPack&, ModPlatform::IndexedVersion&) override;
+    void addResourceToPage(ModPlatform::IndexedPack::Ptr,
+                           ModPlatform::IndexedVersion&,
+                           const std::shared_ptr<ResourceFolderModel>) override;
 
     [[nodiscard]] QMap<QString, QString> urlHandlers() const override;
 

launcher/ui/pages/modplatform/atlauncher/AtlUserInteractionSupportImpl.cpp

@@ -68,7 +68,7 @@ QString AtlUserInteractionSupportImpl::chooseVersion(Meta::VersionList::Ptr vlis
     // select recommended build
     for (int i = 0; i < vlist->versions().size(); i++) {
         auto version = vlist->versions().at(i);
-        auto reqs = version->requires();
+        auto reqs = version->requiredSet();
 
         // filter by minecraft version, if the loader depends on a certain version.
         if (minecraftVersion != nullptr) {

launcher/ui/themes/SystemTheme.cpp

@@ -43,7 +43,7 @@ SystemTheme::SystemTheme()
 {
     themeDebugLog() << "Determining System Theme...";
     const auto& style = QApplication::style();
-    systemPalette = style->standardPalette();
+    systemPalette = QApplication::palette();
     QString lowerThemeName = style->objectName();
     themeDebugLog() << "System theme seems to be:" << lowerThemeName;
     QStringList styles = QStyleFactory::keys();

launcher/ui/widgets/PageContainer.cpp

@@ -137,6 +137,11 @@ BasePage* PageContainer::getPage(QString pageId)
     return m_model->findPageEntryById(pageId);
 }
 
+const QList<BasePage*> PageContainer::getPages() const
+{
+    return m_model->pages();
+}
+
 void PageContainer::refreshContainer()
 {
     m_proxyModel->invalidate();

launcher/ui/widgets/PageContainer.h

@@ -80,6 +80,7 @@ public:
 
     virtual bool selectPage(QString pageId) override;
     BasePage* getPage(QString pageId) override;
+    const QList<BasePage*> getPages() const;
 
     void refreshContainer() override;
     virtual void setParentContainer(BasePageContainer * container)

nix/default.nix

@@ -1,100 +1,32 @@
 {
-  lib,
+  inputs,
-  stdenv,
-  cmake,
-  ninja,
-  jdk8,
-  jdk17,
-  zlib,
-  file,
-  wrapQtAppsHook,
-  xorg,
-  libpulseaudio,
-  qtbase,
-  qtsvg,
-  qtwayland,
-  libGL,
-  quazip,
-  glfw,
-  openal,
-  extra-cmake-modules,
-  tomlplusplus,
-  ghc_filesystem,
-  cmark,
-  msaClientID ? "",
-  jdks ? [jdk17 jdk8],
-  gamemodeSupport ? true,
-  gamemode,
-  # flake
   self,
-  version,
+  ...
-  libnbtplusplus,
+}: {
-}:
+  imports = [
-stdenv.mkDerivation rec {
+    ./dev.nix
-  pname = "pollymc";
+    ./distribution.nix
-  inherit version;
-
-  src = lib.cleanSource self;
-
-  nativeBuildInputs = [extra-cmake-modules cmake file jdk17 ninja wrapQtAppsHook];
-  buildInputs =
-    [
-      qtbase
-      qtsvg
-      zlib
-      quazip
-      ghc_filesystem
-      tomlplusplus
-      cmark
-    ]
-    ++ lib.optional (lib.versionAtLeast qtbase.version "6") qtwayland
-    ++ lib.optional gamemodeSupport gamemode.dev;
-
-  cmakeFlags =
-    lib.optionals (msaClientID != "") ["-DLauncher_MSA_CLIENT_ID=${msaClientID}"]
-    ++ lib.optionals (lib.versionOlder qtbase.version "6") ["-DLauncher_QT_VERSION_MAJOR=5"];
-
-  postUnpack = ''
-    rm -rf source/libraries/libnbtplusplus
-    mkdir source/libraries/libnbtplusplus
-    ln -s ${libnbtplusplus}/* source/libraries/libnbtplusplus
-    chmod -R +r+w source/libraries/libnbtplusplus
-    chown -R $USER: source/libraries/libnbtplusplus
-  '';
-
-  qtWrapperArgs = let
-    libpath = with xorg;
-      lib.makeLibraryPath ([
-          libX11
-          libXext
-          libXcursor
-          libXrandr
-          libXxf86vm
-          libpulseaudio
-          libGL
-          glfw
-          openal
-          stdenv.cc.cc.lib
-        ]
-        ++ lib.optional gamemodeSupport gamemode.lib);
-  in [
-    "--set LD_LIBRARY_PATH /run/opengl-driver/lib:${libpath}"
-    "--prefix PRISMLAUNCHER_JAVA_PATHS : ${lib.makeSearchPath "bin/java" jdks}"
-    # xorg.xrandr needed for LWJGL [2.9.2, 3) https://github.com/LWJGL/lwjgl/issues/128
-    "--prefix PATH : ${lib.makeBinPath [xorg.xrandr]}"
   ];
 
-  meta = with lib; {
+  _module.args = {
-    homepage = "https://github.com/fn2006/PollyMC";
+    # User-friendly version number.
-    description = "A free, open source launcher for Minecraft";
+    version = builtins.substring 0 8 self.lastModifiedDate;
-    longDescription = ''
-      Allows you to have multiple, separate instances of Minecraft (each with
-      their own mods, texture packs, saves, etc) and helps you manage them and
-      their associated options with a simple interface.
-    '';
-    platforms = platforms.linux;
-    changelog = "https://github.com/fn2006/PollyMC/releases/tag/${version}";
-    license = licenses.gpl3Only;
-    maintainers = with maintainers; [ fn2006 ];
   };
+
+  perSystem = {system, ...}: {
+    # Nixpkgs instantiated for supported systems with our overlay.
+    _module.args.pkgs = import inputs.nixpkgs {
+      inherit system;
+      overlays = [self.overlays.default];
+    };
+  };
+
+  # Supported systems.
+  systems = [
+    "x86_64-linux"
+    "x86_64-darwin"
+    "aarch64-linux"
+    # Disabled due to qtbase being currently broken for "aarch64-darwin."
+    # "aarch64-darwin"
+  ];
 }

nix/dev.nix

@@ -0,0 +1,46 @@
+{
+  inputs,
+  self,
+  ...
+}: {
+  perSystem = {
+    system,
+    pkgs,
+    ...
+  }: {
+    checks = {
+      pre-commit-check = inputs.pre-commit-hooks.lib.${system}.run {
+        src = self;
+        hooks = {
+          markdownlint.enable = true;
+
+          alejandra.enable = true;
+          deadnix.enable = true;
+          nil.enable = true;
+
+          clang-format = {
+            enable =
+              false; # As most of the codebase is **not** formatted, we don't want clang-format yet
+            types_or = ["c" "c++"];
+          };
+        };
+      };
+    };
+
+    devShells.default = pkgs.mkShell {
+      inherit (self.checks.${system}.pre-commit-check) shellHook;
+      packages = with pkgs; [
+        nodePackages.markdownlint-cli
+        alejandra
+        deadnix
+        clang-tools
+        nil
+      ];
+
+      inputsFrom = [self.packages.${system}.default];
+      buildInputs = with pkgs; [ccache ninja];
+    };
+
+    formatter = pkgs.alejandra;
+  };
+}

nix/distribution.nix

@@ -0,0 +1,29 @@
+{
+  inputs,
+  self,
+  version,
+  ...
+}: {
+  perSystem = {pkgs, ...}: {
+    packages = {
+      inherit (pkgs) pollymc-qt5-unwrapped pollymc-qt5 pollymc-unwrapped pollymc;
+      default = pkgs.pollymc;
+    };
+  };
+
+  flake = {
+    overlays.default = final: prev: let
+      # Helper function to build prism against different versions of Qt.
+      mkPrism = qt:
+        qt.callPackage ./package.nix {
+          inherit (inputs) libnbtplusplus;
+          inherit self version;
+        };
+    in {
+      pollymc-qt5-unwrapped = mkPrism final.libsForQt5;
+      pollymc-qt5 = prev.pollymc-qt5.override {pollymc-unwrapped = final.pollymc-qt5-unwrapped;};
+      pollymc-unwrapped = mkPrism final.qt6Packages;
+      pollymc = prev.pollymc.override {inherit (final) pollymc-unwrapped;};
+    };
+  };
+}

nix/flake-compat.nix

@@ -1,9 +0,0 @@
-let
-  lock = builtins.fromJSON (builtins.readFile ../flake.lock);
-  inherit (lock.nodes.flake-compat.locked) rev narHash;
-  flake-compat = fetchTarball {
-    url = "https://github.com/edolstra/flake-compat/archive/${rev}.tar.gz";
-    sha256 = narHash;
-  };
-in
-  import flake-compat {src = ../.;}

nix/package.nix

@@ -0,0 +1,65 @@
+{
+  lib,
+  stdenv,
+  cmake,
+  ninja,
+  jdk17,
+  zlib,
+  qtbase,
+  quazip,
+  extra-cmake-modules,
+  tomlplusplus,
+  cmark,
+  ghc_filesystem,
+  gamemode,
+  msaClientID ? null,
+  gamemodeSupport ? true,
+  self,
+  version,
+  libnbtplusplus,
+}:
+stdenv.mkDerivation rec {
+  pname = "pollymc-unwrapped";
+  inherit version;
+
+  src = lib.cleanSource self;
+
+  nativeBuildInputs = [extra-cmake-modules cmake jdk17 ninja];
+  buildInputs =
+    [
+      qtbase
+      zlib
+      quazip
+      ghc_filesystem
+      tomlplusplus
+      cmark
+    ]
+    ++ lib.optional gamemodeSupport gamemode;
+
+  hardeningEnable = ["pie"];
+
+  cmakeFlags =
+    lib.optionals (msaClientID != null) ["-DLauncher_MSA_CLIENT_ID=${msaClientID}"]
+    ++ lib.optionals (lib.versionOlder qtbase.version "6") ["-DLauncher_QT_VERSION_MAJOR=5"];
+
+  postUnpack = ''
+    rm -rf source/libraries/libnbtplusplus
+    ln -s ${libnbtplusplus} source/libraries/libnbtplusplus
+  '';
+
+  dontWrapQtApps = true;
+
+  meta = with lib; {
+    homepage = "https://github.com/fn2006/PollyMC";
+    description = "A free, open source launcher for Minecraft";
+    longDescription = ''
+      Allows you to have multiple, separate instances of Minecraft (each with
+      their own mods, texture packs, saves, etc) and helps you manage them and
+      their associated options with a simple interface.
+    '';
+    platforms = platforms.linux;
+    changelog = "https://github.com/fn2006/PollyMC/releases/tag/${version}";
+    license = licenses.gpl3Only;
+    maintainers = with maintainers; [fn2006];
+  };
+}

program_info/win_install.nsi.in

@@ -12,6 +12,8 @@ OutFile "../@Launcher_CommonName@-Setup.exe"
 
 !define MUI_ICON "../@Launcher_Branding_ICO@"
 
+!define UNINST_KEY "Software\Microsoft\Windows\CurrentVersion\Uninstall\@Launcher_CommonName@"
+
 ;--------------------------------
 
 ; Pages
@@ -269,7 +271,73 @@ VIAddVersionKey /LANG=${LANG_ENGLISH} "ProductVersion" "@Launcher_VERSION_NAME4@
 !macroend
 
 
-;--------------------------------
+;------------------------------------------
+; Uninstall Previous install
+
+!macro RunUninstall exitcode uninstcommand
+  Push `${uninstcommand}`
+  Call RunUninstall
+  Pop ${exitcode}
+!macroend
+
+; Checks that the uninstaller in the provided command exists and runs it.
+Function RunUninstall
+  Exch $1 ; input uninstcommand
+  Push $2 ; Uninstaller
+  Push $3 ; Len
+  Push $4 ; uninstcommand
+  StrCpy $4 $1 ; make a copy of the command for later
+  StrCpy $3 ""
+  StrCpy $2 $1 1  ; take first char of string
+  StrCmp $2 '"' quoteloop stringloop
+  stringloop:  ; get string length
+	  StrCpy $2 $1 1 $3  ; get next char
+	  IntOp $3 $3 + 1  ; index += 1
+	  StrCmp $2 "" +2  stringloop  ; if empty exit loop
+	  IntOp $3 $3 - 1  ; index -= 1
+	  Goto run
+  quoteloop: ; get string length with quotes removed
+	  StrCmp $3 "" 0 +2  ; if index is set skip quote removal
+	  StrCpy $1 $1 "" 1  ; Remove initial quote
+	  IntOp $3 $3 + 1  ; index += 1
+	  StrCpy $2 $1 1 $3  ; get next char
+	  StrCmp $2 "" +2  ; if empty exit loop
+	  StrCmp $2 '"' 0 quoteloop ; if ending quote exit loop, else loop
+  run:
+	  StrCpy $2 $1 $3 ; Path to uninstaller ; (copy string up to ending quote - if it exists)
+	  StrCpy $1 161 ; ERROR_BAD_PATHNAME  ; set exit code (it get's overwritten with uninstaller exit code if ExecWait call doesn't error)
+	  GetFullPathName $3 "$2\.." ; $InstDir
+	  IfFileExists "$2" 0 +4
+	  ExecWait $4 $1 ; The file exists, call the saved command
+    IntCmp $1 0 "" +2 +2 ; Don't delete the installer if it was aborted ; 
+	  Delete "$2" ; Delete the uninstaller
+	  RMDir "$3" ; Try to delete $InstDir
+  Pop $4
+  Pop $3
+  Pop $2
+  Exch $1 ; exitcode
+FunctionEnd
+
+; The "" makes the section hidden.
+Section "" UninstallPrevious
+
+  ReadRegStr $0 HKCU "${UNINST_KEY}" "QuietUninstallString"
+  ${If} $0 == ""
+    ReadRegStr $0 HKCU "${UNINST_KEY}" "UninstallString"
+  ${EndIf}
+  
+  ${If} $0 != ""
+	  !insertmacro RunUninstall $0 $0
+	  ${If} $0 <> 0
+		  MessageBox MB_YESNO|MB_ICONSTOP "Failed to uninstall, continue anyway?" /SD IDYES IDYES +2
+			  Abort
+	  ${EndIf}
+  ${EndIf}
+
+SectionEnd
+
+
+;------------------------------------
 
 ; The stuff to install
 Section "@Launcher_DisplayName@"
@@ -299,11 +367,10 @@ Section "@Launcher_DisplayName@"
   ${GetParameters} $R0
   ${GetOptions} $R0 "/NoUninstaller" $R1
   ${If} ${Errors}
-    !define UNINST_KEY "Software\Microsoft\Windows\CurrentVersion\Uninstall\@Launcher_CommonName@"
     WriteRegStr HKCU "${UNINST_KEY}" "DisplayName" "@Launcher_DisplayName@"
     WriteRegStr HKCU "${UNINST_KEY}" "DisplayIcon" "$INSTDIR\@Launcher_APP_BINARY_NAME@.exe"
-    WriteRegStr HKCU "${UNINST_KEY}" "UninstallString" '"$INSTDIR\uninstall.exe"'
+    WriteRegStr HKCU "${UNINST_KEY}" "UninstallString" '"$INSTDIR\uninstall.exe" _?=$INSTDIR'
-    WriteRegStr HKCU "${UNINST_KEY}" "QuietUninstallString" '"$INSTDIR\uninstall.exe" /S'
+    WriteRegStr HKCU "${UNINST_KEY}" "QuietUninstallString" '"$INSTDIR\uninstall.exe" /S _?=$INSTDIR'
     WriteRegStr HKCU "${UNINST_KEY}" "InstallLocation" "$INSTDIR"
     WriteRegStr HKCU "${UNINST_KEY}" "Publisher" "@Launcher_DisplayName@ Contributors"
     WriteRegStr HKCU "${UNINST_KEY}" "Version" "@Launcher_VERSION_NAME4@"

renovate.json

@@ -2,5 +2,11 @@
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
   "extends": [
     "config:base"
-  ]
+  ],
+  "nix": {
+    "enabled": true
+  },
+  "lockFileMaintenance": {
+    "enabled": true
+  }
 }