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Assets/Photon/Fusion/Editor/FusionWeaverTriggerImporter.cs

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+namespace Fusion.Editor {
+  using System.IO;
+  using System.Linq;
+  using UnityEditor;
+  using UnityEditor.AssetImporters;
+  using UnityEngine;
+
+  [ScriptedImporter(1, ExtensionWithoutDot, NetworkProjectConfigImporter.ImportQueueOffset + 1)]
+  public class FusionWeaverTriggerImporter : ScriptedImporter {
+    public const string Extension = "." + ExtensionWithoutDot;
+    public const string ExtensionWithoutDot = "fusionweavertrigger";
+    
+    [Tooltip("If enabled, runs the weaver when weaving-related changes are detected in the config file.")]
+    public bool RunWeaverOnConfigChanges = true;
+
+    public override void OnImportAsset(AssetImportContext ctx) {
+      ctx.DependsOnCustomDependency(DependencyHash.Name);
+      if (RunWeaverOnConfigChanges && !Application.isBatchMode) {
+        ILWeaverUtils.RunWeaver();
+      }
+    }
+
+    static readonly FusionCustomDependency DependencyHash = new("FusionILWeaverTriggerImporter/ConfigHash", () => {
+      if (EditorApplication.isCompiling || EditorApplication.isUpdating) {
+        return default;
+      }
+
+      var configPath = NetworkProjectConfigUtilities.GetGlobalConfigPath();
+
+      if (string.IsNullOrEmpty(configPath)) {
+        return default;
+      }
+
+      try {
+        var cfg = NetworkProjectConfigImporter.LoadConfigFromFile(configPath);
+        var hash = new Hash128();
+
+        foreach (var path in cfg.AssembliesToWeave) {
+          hash.Append(path);
+        }
+
+        hash.Append(cfg.UseSerializableDictionary ? 1 : 0);
+        hash.Append(cfg.NullChecksForNetworkedProperties ? 1 : 0);
+        hash.Append(cfg.CheckRpcAttributeUsage ? 1 : 0);
+        hash.Append(cfg.CheckNetworkedPropertiesBeingEmpty ? 1 : 0);
+
+        return hash;
+      } catch {
+        // ignore the error
+        return default;
+      }
+    });
+    
+    private class Postprocessor : AssetPostprocessor {
+      private static void OnPostprocessAllAssets(string[] importedAssets, string[] deletedAssets, string[] movedAssets, string[] movedFromAssetPaths) {
+        foreach (var path in importedAssets) {
+          if (path.EndsWith(NetworkProjectConfigImporter.Extension)) {
+            DependencyHash.Refresh();
+            break;
+          }
+        }
+      }
+    }
+  }
+}