ignore disk events for files we save

src/SharpIDE.Application/Features/FilePersistence/IdeFileManager.cs

@@ -57,7 +57,7 @@ public class IdeFileManager
 		if (file.IsDirty.Value is false) return;
 
 		var text = await GetFileTextAsync(file);
-		await File.WriteAllTextAsync(file.Path, text);
+		await WriteAllText(file, text);
 		file.IsDirty.Value = false;
 	}
 
@@ -70,10 +70,23 @@ public class IdeFileManager
 		}
 		else
 		{
-			await File.WriteAllTextAsync(file.Path, newText);
+			await WriteAllText(file, newText);
 		}
 	}
 
+	private static async Task WriteAllText(SharpIdeFile file, string text)
+	{
+		file.SuppressDiskChangeEvents.Value = true;
+		await File.WriteAllTextAsync(file.Path, text);
+		Console.WriteLine($"Saved file {file.Path}");
+		_ = Task.Delay(300).ContinueWith(_ =>
+		{
+			Console.WriteLine($"Re-enabling disk change events for {file.Path}");
+			file.SuppressDiskChangeEvents.Value = false;
+			Console.WriteLine($"Value is now {file.SuppressDiskChangeEvents.Value}");
+		}, CancellationToken.None, TaskContinuationOptions.RunContinuationsAsynchronously, TaskScheduler.Default);
+	}
+
 	public async Task SaveAllOpenFilesAsync()
 	{
 		foreach (var file in _openFiles.Keys.ToList())

src/SharpIDE.Application/Features/FileWatching/IdeFileChangeHandler.cs

@@ -11,11 +11,12 @@ public class IdeFileChangeHandler
 		GlobalEvents.Instance.FileSystemWatcherInternal.FileChanged.Subscribe(OnFileChanged);
 	}
 
-	private async Task OnFileChanged(string arg)
+	private async Task OnFileChanged(string filePath)
 	{
-		var sharpIdeFile = SolutionModel.AllFiles.SingleOrDefault(f => f.Path == arg);
+		var sharpIdeFile = SolutionModel.AllFiles.SingleOrDefault(f => f.Path == filePath);
 		if (sharpIdeFile is null) return;
-		// TODO: Suppress if SharpIDE changed the file
+		if (sharpIdeFile.SuppressDiskChangeEvents.Value is true) return;
+		Console.WriteLine($"IdeFileChangeHandler: Changed - {filePath}");
 		await sharpIdeFile.FileContentsChangedExternallyFromDisk.InvokeParallelAsync();
 	}
 }

src/SharpIDE.Application/Features/FileWatching/IdeFileWatcher.cs

@@ -82,8 +82,8 @@ public sealed class IdeFileWatcher : IDisposable
 	// TODO: Make a note to users that they should not use files without extensions
 	private void HandleChanged(string fullPath)
 	{
-		if (Path.HasExtension(fullPath) is false) return;
+		if (Path.HasExtension(fullPath) is false) return; // we don't care about directory changes
-		Console.WriteLine($"FileSystemWatcher: Changed - {fullPath}");
+		//Console.WriteLine($"FileSystemWatcher: Changed - {fullPath}");
 		GlobalEvents.Instance.FileSystemWatcherInternal.FileChanged.InvokeParallelFireAndForget(fullPath);
 	}
 

src/SharpIDE.Application/Features/SolutionDiscovery/SharpIdeFile.cs

@@ -15,7 +15,8 @@ public class SharpIdeFile : ISharpIdeNode, IChildSharpIdeNode
 	public bool IsCshtmlFile => Path.EndsWith(".cshtml", StringComparison.OrdinalIgnoreCase);
 	public bool IsCsharpFile => Path.EndsWith(".cs", StringComparison.OrdinalIgnoreCase);
 	public bool IsRoslynWorkspaceFile => IsCsharpFile || IsRazorFile || IsCshtmlFile;
-	public required ReactiveProperty<bool> IsDirty { get; set; }
+	public required ReactiveProperty<bool> IsDirty { get; init; }
+	public required ReactiveProperty<bool> SuppressDiskChangeEvents { get; init; }
 	public EventWrapper<Task> FileContentsChangedExternallyFromDisk { get; } = new(() => Task.CompletedTask);
 	public EventWrapper<Task> FileContentsChangedExternally { get; } = new(() => Task.CompletedTask);
 
@@ -26,6 +27,7 @@ public class SharpIdeFile : ISharpIdeNode, IChildSharpIdeNode
 		Name = name;
 		Parent = parent;
 		IsDirty = new ReactiveProperty<bool>(false);
+		SuppressDiskChangeEvents = new ReactiveProperty<bool>(false);
 		allFiles.Add(this);
 	}
 }