fix: check for Quilt as Fabric-compatible loader

launcher/minecraft/PackProfile.cpp

@@ -970,3 +970,20 @@ void PackProfile::disableInteraction(bool disable)
         }
     }
 }
+
+ModAPI::ModLoaderType PackProfile::getModLoader()
+{
+    if (!getComponentVersion("net.minecraftforge").isEmpty())
+    {
+        return ModAPI::Forge;
+    }
+    else if (!getComponentVersion("net.fabricmc.fabric-loader").isEmpty())
+    {
+        return ModAPI::Fabric;
+    }
+    else if (!getComponentVersion("org.quiltmc.quilt-loader").isEmpty())
+    {
+        return ModAPI::Quilt;
+    }
+    return ModAPI::Any;
+}

launcher/minecraft/PackProfile.h

@@ -28,6 +28,7 @@
 #include "BaseVersion.h"
 #include "MojangDownloadInfo.h"
 #include "net/Mode.h"
+#include "modplatform/ModAPI.h"
 
 class MinecraftInstance;
 struct PackProfileData;
@@ -117,6 +118,8 @@ public:
     // todo(merged): is this the best approach
     void appendComponent(ComponentPtr component);
 
+    ModAPI::ModLoaderType getModLoader();
+
 private:
     void scheduleSave();
     bool saveIsScheduled() const;

launcher/minecraft/mod/LocalModParseTask.cpp

@@ -391,7 +391,7 @@ void LocalModParseTask::processAsZip()
         zip.close();
         return;
     }
-    else if (zip.setCurrentFile("fabric.mod.json"))
+    else if (zip.setCurrentFile("fabric.mod.json"))  // TODO: Support quilt.mod.json
     {
         if (!file.open(QIODevice::ReadOnly))
         {