set file colour in sln explorer based on git status

Directory.Packages.props

@@ -14,6 +14,7 @@
     <PackageVersion Include="ClrDebug" Version="0.3.4" />
     <PackageVersion Include="FileWatcherEx" Version="2.7.0" />
     <PackageVersion Include="Krafs.Publicizer" Version="2.3.0" />
+    <PackageVersion Include="LibGit2Sharp" Version="0.31.0" />
     <PackageVersion Include="Microsoft.AspNetCore.Components" Version="10.0.0-rc.2.25502.107" />
     <PackageVersion Include="Microsoft.AspNetCore.Components.WebView" Version="10.0.0-rc.2.25502.107" />
     <PackageVersion Include="Microsoft.Build" Version="18.1.0-preview-25521-106" />
@@ -59,4 +60,4 @@
     <PackageVersion Include="Microsoft.CodeAnalysis.ExternalAccess.Razor.Features" Version="5.3.0-1.25521.106" />
     <PackageVersion Include="Microsoft.CodeAnalysis.Remote.ServiceHub" Version="5.3.0-1.25521.106" />
   </ItemGroup>
-</Project>
+</Project>

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

@@ -17,6 +17,7 @@ public class SharpIdeFile : ISharpIdeNode, IChildSharpIdeNode, IFileOrFolder
 	public bool IsCshtmlFile => Path.EndsWith(".cshtml", StringComparison.OrdinalIgnoreCase);
 	public bool IsCsharpFile => Path.EndsWith(".cs", StringComparison.OrdinalIgnoreCase);
 	public bool IsRoslynWorkspaceFile => IsCsharpFile || IsRazorFile || IsCshtmlFile;
+	public GitStatus GitStatus { get; set; } = GitStatus.Unaltered;
 	public required ReactiveProperty<bool> IsDirty { get; init; }
 	public required bool SuppressDiskChangeEvents { get; set; } // probably has concurrency issues
 	public required DateTimeOffset? LastIdeWriteTime { get; set; }

src/SharpIDE.Application/Features/SolutionDiscovery/VsPersistence/VsPersistenceMapper.cs

@@ -1,4 +1,5 @@
 using System.Diagnostics;
+using LibGit2Sharp;
 
 namespace SharpIDE.Application.Features.SolutionDiscovery.VsPersistence;
 
@@ -11,7 +12,34 @@ public static class VsPersistenceMapper
 		var intermediateModel = await IntermediateMapper.GetIntermediateModel(solutionFilePath, cancellationToken);
 
 		var solutionModel = new SharpIdeSolutionModel(solutionFilePath, intermediateModel);
+		using var repo = new Repository(solutionModel.DirectoryPath);
+		var status = repo.RetrieveStatus(new StatusOptions());
+
+		foreach (var entry in status.Where(s => s.State is not FileStatus.Ignored))
+		{
+			// Assumes solution file is at git repo root
+			var filePath = new FileInfo(Path.Combine(solutionModel.DirectoryPath, entry.FilePath)).FullName; // used to normalise path separators
+			var fileInSolution = solutionModel.AllFiles.SingleOrDefault(f => f.Path.Equals(filePath, StringComparison.OrdinalIgnoreCase));
+			if (fileInSolution is null) continue;
+
+			var mappedGitStatus = entry.State switch
+			{
+				FileStatus.NewInIndex | FileStatus.ModifiedInWorkdir => GitStatus.Added, // I've seen these appear together
+				FileStatus.NewInIndex or FileStatus.NewInWorkdir => GitStatus.Added,
+				FileStatus.ModifiedInIndex or FileStatus.ModifiedInWorkdir => GitStatus.Modified,
+				_ => GitStatus.Unaltered // TODO: handle other kinds?
+			};
+
+			fileInSolution.GitStatus = mappedGitStatus;
+		}
 
 		return solutionModel;
 	}
 }
+
+public enum GitStatus
+{
+	Unaltered,
+	Modified,
+	Added
+}

src/SharpIDE.Application/SharpIDE.Application.csproj

@@ -23,6 +23,7 @@
   <ItemGroup>
     <PackageReference Include="CliWrap" />
     <PackageReference Include="FileWatcherEx" />
+    <PackageReference Include="LibGit2Sharp" />
     <PackageReference Include="Microsoft.Diagnostics.NETCore.Client" PrivateAssets="all" />
     <PackageReference Include="Microsoft.Extensions.FileSystemGlobbing" />
     <PackageReference Include="Microsoft.VisualStudio.Shared.VSCodeDebugProtocol" />

src/SharpIDE.Godot/Features/SolutionExplorer/SolutionExplorerPanel.cs

@@ -26,7 +26,8 @@ public partial class SolutionExplorerPanel : MarginContainer
 	public Texture2D SlnIcon { get; set; } = null!;
 
 	private readonly Color _gitNewFileColour = new Color("50964c");
-	private readonly Color _gitEditedFileColour = new Color("5988b3");
+	private readonly Color _gitEditedFileColour = new Color("6496ba");
+	private readonly Color _gitUnalteredFileColour = new Color("d4d4d4");
 	
 	public SharpIdeSolutionModel SolutionModel { get; set; } = null!;
 	private Tree _tree = null!;
@@ -286,7 +287,8 @@ public partial class SolutionExplorerPanel : MarginContainer
 	{
 		var fileItem = tree.CreateItem(parent);
 		fileItem.SetText(0, sharpIdeFile.Name);
-		fileItem.SetIcon(0, CsharpFileIcon);
+		fileItem.SetIcon(0, CsharpFileIcon); 
+		fileItem.SetCustomColor(0, GetColorForGitStatus(sharpIdeFile.GitStatus));
 		fileItem.SetMetadata(0, new RefCountedContainer<SharpIdeFile>(sharpIdeFile));
 		
 		Observable.EveryValueChanged(sharpIdeFile, folder => folder.Name)
@@ -302,4 +304,12 @@ public partial class SolutionExplorerPanel : MarginContainer
 	{
 	    await this.InvokeAsync(() => item?.Free());
 	}
+
+	private Color GetColorForGitStatus(GitStatus status) => status switch
+	{
+		GitStatus.Added => _gitNewFileColour,
+		GitStatus.Modified => _gitEditedFileColour,
+		GitStatus.Unaltered => _gitUnalteredFileColour,
+		_ => _gitUnalteredFileColour
+	};
 }