Added Unity project files

Packages/com.vrchat.worlds/Integrations/UdonSharp/Editor/BuildUtilities/UdonSharpBuildChecks.cs

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+
+using UdonSharp;
+using UnityEditor;
+using VRC.SDKBase.Editor.BuildPipeline;
+
+namespace UdonSharpEditor
+{
+    internal class UdonSharpBuildChecks : IVRCSDKBuildRequestedCallback
+    {
+        public int callbackOrder => -1;
+
+        /// <summary>
+        /// If you're considering commenting any section of this out, try enabling the force compile in the U# settings first.
+        /// This is here to prevent you from corrupting your project files.
+        /// If scripts are left uncompiled from Unity's side when uploading, there is a chance to corrupt your assemblies which can cause all of your UdonBehaviours to lose their variables if handled wrong.
+        /// </summary>
+        /// <param name="requestedBuildType"></param>
+        /// <returns></returns>
+        public bool OnBuildRequested(VRCSDKRequestedBuildType requestedBuildType)
+        {
+            UdonSharpSettings settings = UdonSharpSettings.GetSettings();
+            bool shouldForceCompile = settings.shouldForceCompile;
+
+            // Unity doesn't like this and will throw errors if it ends up compiling scripts. But it seems to work. 
+            // This is marked experimental for now since I don't know if it will break horribly in some case.
+            if (shouldForceCompile)
+            {
+                AssetDatabase.Refresh(ImportAssetOptions.ForceUpdate | ImportAssetOptions.ForceSynchronousImport);
+            }
+            else
+            {
+                AssetDatabase.Refresh(ImportAssetOptions.ForceUpdate);
+
+                if (EditorApplication.isCompiling)
+                {
+                    UdonSharpUtils.LogWarning("Scripts are in the process of compiling, please retry build after scripts have compiled.");
+                    UdonSharpUtils.ShowEditorNotification("Scripts are in the process of compiling, please retry build after scripts have compiled.");
+                    return false;
+                }
+            }
+            
+            return true;
+        }
+    }
+}

Packages/com.vrchat.worlds/Integrations/UdonSharp/Editor/BuildUtilities/UdonSharpBuildChecks.cs.meta

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Packages/com.vrchat.worlds/Integrations/UdonSharp/Editor/BuildUtilities/UdonSharpBuildCompile.cs

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+
+using UdonSharp;
+using UdonSharp.Compiler;
+using VRC.SDKBase.Editor.BuildPipeline;
+
+namespace UdonSharpEditor
+{
+    internal class UdonSharpBuildCompile : IVRCSDKBuildRequestedCallback
+    {
+        public int callbackOrder => 100;
+
+        public bool OnBuildRequested(VRCSDKRequestedBuildType requestedBuildType)
+        {
+            if (requestedBuildType == VRCSDKRequestedBuildType.Avatar)
+                return true;
+
+            if (UdonSharpSettings.GetSettings().disableUploadCompile)
+                return true;
+
+            UdonSharpCompilerV1.CompileSync(new UdonSharpCompileOptions() { IsEditorBuild = false });
+            UdonSharpEditorCache.SaveAllCache();
+
+            if (UdonSharpProgramAsset.AnyUdonSharpScriptHasError())
+            {
+                UdonSharpUtils.LogError("Failed to compile UdonSharp scripts for build, check error log for details.");
+                UdonSharpUtils.ShowEditorNotification("Failed to compile UdonSharp scripts for build, check error log for details.");
+                return false;
+            }
+
+            if (UdonSharpEditorManager.RunAllUpgrades())
+            {
+                UdonSharpUtils.LogWarning(UdonSharpEditorManager.UPGRADE_MESSAGE);
+                return false;
+            }
+
+            return true;
+        }
+    }
+}

Packages/com.vrchat.worlds/Integrations/UdonSharp/Editor/BuildUtilities/UdonSharpBuildCompile.cs.meta

@@ -0,0 +1,11 @@
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