Begin work for displaying architecture of install

Author: Ravbug

source/AppleUtilities.h

@@ -2,3 +2,10 @@
 #include <cstdint>
 
 void getCFBundleVersionFromPlist(const char* path, char* outbuf, uint8_t outbuf_size);
+
+enum architecture{
+    Unknown = 0,
+    x86_64 = 1 << 1,
+    arm64 = 1 << 2,
+};
+int getArchitectureFromBundle(const char* path);

source/AppleUtilities.mm

@@ -9,3 +9,23 @@ void getCFBundleVersionFromPlist(const char* path, char* outbuf, uint8_t outbuf_
     memset(outbuf, 0, outbuf_size);
     strncpy(outbuf, [item cStringUsingEncoding:NSUTF8StringEncoding], outbuf_size);
 }
+
+int getArchitectureFromBundle(const char* path){
+    auto bundle = [NSBundle bundleWithPath:[NSString stringWithUTF8String:path]];
+    auto archs = [bundle executableArchitectures];
+    
+    int archmask = architecture::Unknown;
+    
+    for(NSNumber* archptr in archs){
+        auto arch = [archptr intValue];
+        if (arch == NSBundleExecutableArchitectureX86_64){
+            archmask |= architecture::x86_64;
+        }
+        if (@available(macOS 11.0, *)) {
+            if (arch == NSBundleExecutableArchitectureARM64){
+                archmask |= architecture::arm64;
+            }
+        } 
+    }
+    return archmask;
+}

source/interface_derived.cpp

@@ -608,6 +608,10 @@ void MainFrameDerived::LoadEditorVersions(){
                                 //add it to the backing datastructure
                                 editor e = {buffer, path};
                                 if (std::find(editors.begin(), editors.end(), e) == editors.end()){
+                                    //get the target architecture
+                                    auto bundlepath = path / entry->d_name / "Unity.app";
+                                    auto arch = getArchitectureFromBundle(bundlepath.string().c_str());
+                                    
                                     a.Add(e.name + " - " + e.path.string());
                                     editors.push_back(e);
                                 }
@@ -619,6 +623,8 @@ void MainFrameDerived::LoadEditorVersions(){
                             //add it to the backing datastructure
                             editor e = {entry->d_name, path};
                             if (std::find(editors.begin(), editors.end(), e) == editors.end()){
+                                auto bundlepath = path / entry->d_name / "Unity.app";
+                                auto arch = getArchitectureFromBundle(bundlepath.string().c_str());
                                 a.Add(e.name + " - " + e.path.string());
                                 editors.push_back(e);
                             }