Add path extensions saving and injection

StabilityMatrix/App.xaml.cs

@@ -86,11 +86,15 @@ namespace StabilityMatrix
             serviceCollection.AddTransient<OneClickInstallViewModel>();
             serviceCollection.AddTransient<CheckpointManagerViewModel>();
             
+            var settingsManager = new SettingsManager();
+            serviceCollection.AddSingleton<ISettingsManager>(settingsManager);
+            // Insert path extensions
+            settingsManager.InsertPathExtensions();
+            
             serviceCollection.AddSingleton<BasePackage, A3WebUI>();
             serviceCollection.AddSingleton<BasePackage, VladAutomatic>();
             serviceCollection.AddSingleton<BasePackage, ComfyUI>();
             serviceCollection.AddSingleton<Wpf.Ui.Contracts.ISnackbarService, Wpf.Ui.Services.SnackbarService>();
-            serviceCollection.AddSingleton<ISettingsManager, SettingsManager>();
             serviceCollection.AddSingleton<IPrerequisiteHelper, PrerequisiteHelper>();
             serviceCollection.AddSingleton<ISnackbarService, SnackbarService>();
             serviceCollection.AddSingleton<IDownloadService, DownloadService>();

StabilityMatrix/Helper/ISettingsManager.cs

@@ -14,6 +14,14 @@ public interface ISettingsManager
     void SetActiveInstalledPackage(InstalledPackage? p);
     void SetNavExpanded(bool navExpanded);
     void UpdatePackageVersionNumber(Guid id, string? newVersion);
+
+    void AddPathExtension(string pathExtension);
+    string GetPathExtensionsAsString();
+    /// <summary>
+    /// Insert path extensions to the front of the PATH environment variable
+    /// </summary>
+    void InsertPathExtensions();
+    
     void SetLastUpdateCheck(InstalledPackage package);
     List<LaunchOption> GetLaunchArgs(Guid packageId);
     void SaveLaunchArgs(Guid packageId, List<LaunchOption> launchArgs);

StabilityMatrix/Helper/PrerequisiteHelper.cs

@@ -22,6 +22,7 @@ public class PrerequisiteHelper : IPrerequisiteHelper
     private readonly ILogger<PrerequisiteHelper> logger;
     private readonly IGitHubClient gitHubClient;
     private readonly IDownloadService downloadService;
+    private readonly ISettingsManager settingsManager;
 
     private static readonly string PortableGitInstallDir =
         Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "StabilityMatrix",
@@ -36,11 +37,12 @@ public class PrerequisiteHelper : IPrerequisiteHelper
     public static readonly string GitBinPath = Path.Combine(PortableGitInstallDir, "bin");
 
     public PrerequisiteHelper(ILogger<PrerequisiteHelper> logger, IGitHubClient gitHubClient,
-        IDownloadService downloadService)
+        IDownloadService downloadService, ISettingsManager settingsManager)
     {
         this.logger = logger;
         this.gitHubClient = gitHubClient;
         this.downloadService = downloadService;
+        this.settingsManager = settingsManager;
     }
 
     public event EventHandler<ProgressReport>? DownloadProgressChanged;
@@ -89,6 +91,9 @@ public class PrerequisiteHelper : IPrerequisiteHelper
 
         OnInstallProgressChanged(this, new ProgressReport(-1, isIndeterminate: true));
         File.Delete(PortableGitDownloadPath);
+        // Also add git to the path
+        settingsManager.AddPathExtension(GitBinPath);
+        settingsManager.InsertPathExtensions();
         OnInstallComplete(this, new ProgressReport(progress: 1f));
     }
 

StabilityMatrix/Helper/SettingsManager.cs

@@ -15,6 +15,7 @@ public class SettingsManager : ISettingsManager
     private static readonly string SettingsPath =
         Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "StabilityMatrix",
             SettingsFileName);
+    private readonly string? originalEnvPath = Environment.GetEnvironmentVariable("PATH", EnvironmentVariableTarget.Process);
 
     public Settings Settings { get; private set; } = new();
 
@@ -64,6 +65,30 @@ public class SettingsManager : ISettingsManager
         Settings.IsNavExpanded = navExpanded;
         SaveSettings();
     }
+    
+    public void AddPathExtension(string pathExtension)
+    {
+        Settings.PathExtensions ??= new List<string>();
+        Settings.PathExtensions.Add(pathExtension);
+        SaveSettings();
+    }
+
+    public string GetPathExtensionsAsString()
+    {
+        return string.Join(";", Settings.PathExtensions ?? new List<string>());
+    }
+
+    /// <summary>
+    /// Insert path extensions to the front of the PATH environment variable
+    /// </summary>
+    public void InsertPathExtensions()
+    {
+        if (Settings.PathExtensions == null) return;
+        var toInsert = GetPathExtensionsAsString();
+        // Append the original path, if any
+        toInsert += originalEnvPath ?? "";
+        Environment.SetEnvironmentVariable("PATH", toInsert, EnvironmentVariableTarget.Process);
+    }
 
     public void UpdatePackageVersionNumber(Guid id, string? newVersion)
     {

StabilityMatrix/Models/Settings.cs

@@ -11,4 +11,5 @@ public class Settings
     public List<InstalledPackage> InstalledPackages { get; set; } = new();
     public Guid? ActiveInstalledPackage { get; set; }
     public bool IsNavExpanded { get; set; }
+    public List<string>? PathExtensions { get; set; }
 }

StabilityMatrix/Python/PyRunner.cs

@@ -50,7 +50,7 @@ public class PyRunner : IPyRunner
         // Get existing PATH
         var currentEnvPath = Environment.GetEnvironmentVariable("PATH", EnvironmentVariableTarget.Process);
         // Append Python path to PATH
-        Environment.SetEnvironmentVariable("PATH", $"{PrerequisiteHelper.GitBinPath};{currentEnvPath};{HomePath}", EnvironmentVariableTarget.Process);
+        Environment.SetEnvironmentVariable("PATH", $"{HomePath};{currentEnvPath}", EnvironmentVariableTarget.Process);
 
         Logger.Info("Initializing Python runtime with DLL: {DllPath}", DllPath);
         // Check PythonDLL exists