NOISSUE Flatten gui and logic libraries into MultiMC

launcher/minecraft/launch/ModMinecraftJar.cpp

@@ -0,0 +1,82 @@
+/* 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 "ModMinecraftJar.h"
+#include "launch/LaunchTask.h"
+#include "MMCZip.h"
+#include "minecraft/OpSys.h"
+#include "FileSystem.h"
+#include "minecraft/MinecraftInstance.h"
+#include "minecraft/PackProfile.h"
+
+void ModMinecraftJar::executeTask()
+{
+    auto m_inst = std::dynamic_pointer_cast<MinecraftInstance>(m_parent->instance());
+
+    if(!m_inst->getJarMods().size())
+    {
+        emitSucceeded();
+        return;
+    }
+    // nuke obsolete stripped jar(s) if needed
+    if(!FS::ensureFolderPathExists(m_inst->binRoot()))
+    {
+        emitFailed(tr("Couldn't create the bin folder for Minecraft.jar"));
+    }
+
+    auto finalJarPath = QDir(m_inst->binRoot()).absoluteFilePath("minecraft.jar");
+    if(!removeJar())
+    {
+        emitFailed(tr("Couldn't remove stale jar file: %1").arg(finalJarPath));
+    }
+
+    // create temporary modded jar, if needed
+    auto components = m_inst->getPackProfile();
+    auto profile = components->getProfile();
+    auto jarMods = m_inst->getJarMods();
+    if(jarMods.size())
+    {
+        auto mainJar = profile->getMainJar();
+        QStringList jars, temp1, temp2, temp3, temp4;
+        mainJar->getApplicableFiles(currentSystem, jars, temp1, temp2, temp3, m_inst->getLocalLibraryPath());
+        auto sourceJarPath = jars[0];
+        if(!MMCZip::createModdedJar(sourceJarPath, finalJarPath, jarMods))
+        {
+            emitFailed(tr("Failed to create the custom Minecraft jar file."));
+            return;
+        }
+    }
+    emitSucceeded();
+}
+
+void ModMinecraftJar::finalize()
+{
+    removeJar();
+}
+
+bool ModMinecraftJar::removeJar()
+{
+    auto m_inst = std::dynamic_pointer_cast<MinecraftInstance>(m_parent->instance());
+    auto finalJarPath = QDir(m_inst->binRoot()).absoluteFilePath("minecraft.jar");
+    QFile finalJar(finalJarPath);
+    if(finalJar.exists())
+    {
+        if(!finalJar.remove())
+        {
+            return false;
+        }
+    }
+    return true;
+}