enhance: only update grammar if it is necessary

* when try to stash all the local changes, add a option to only stash the staged changes
* stash changes in selected files will prompt user - both staged and unstaged changes of selected file(s) will be stashed

src/Models/TextMateHelper.cs

@@ -81,6 +81,8 @@ namespace SourceGit.Models
 
     public class RegistryOptionsWrapper(ThemeName defaultTheme) : IRegistryOptions
     {
+        public string LastScope { get; set; } = string.Empty;
+
         public IRawTheme GetTheme(string scopeName) => _backend.GetTheme(scopeName);
         public IRawTheme GetDefaultTheme() => _backend.GetDefaultTheme();
         public IRawTheme LoadTheme(ThemeName name) => _backend.LoadTheme(name);
@@ -111,10 +113,15 @@ namespace SourceGit.Models
 
         public static void SetGrammarByFileName(TextMate.Installation installation, string filePath)
         {
-            if (installation is { RegistryOptions: RegistryOptionsWrapper reg })
+            if (installation is { RegistryOptions: RegistryOptionsWrapper reg } && !string.IsNullOrEmpty(filePath))
             {
-                installation.SetGrammar(reg.GetScope(filePath));
-                GC.Collect();
+                var scope = reg.GetScope(filePath);
+                if (reg.LastScope != scope)
+                {
+                    reg.LastScope = scope;
+                    installation.SetGrammar(reg.GetScope(filePath));
+                    GC.Collect();
+                }
             }
         }
     }

src/Resources/Locales/en_US.axaml

@@ -562,6 +562,8 @@
   <x:String x:Key="Text.Stash.IncludeUntracked" xml:space="preserve">Include untracked files</x:String>
   <x:String x:Key="Text.Stash.Message" xml:space="preserve">Message:</x:String>
   <x:String x:Key="Text.Stash.Message.Placeholder" xml:space="preserve">Optional. Name of this stash</x:String>
+  <x:String x:Key="Text.Stash.OnlyStagedChanges" xml:space="preserve">Only staged changes</x:String>
+  <x:String x:Key="Text.Stash.TipForSelectedFiles" xml:space="preserve">Both staged and unstaged changes of selected file(s) will be stashed!!!</x:String>
   <x:String x:Key="Text.Stash.Title" xml:space="preserve">Stash Local Changes</x:String>
   <x:String x:Key="Text.StashCM.Apply" xml:space="preserve">Apply</x:String>
   <x:String x:Key="Text.StashCM.Drop" xml:space="preserve">Drop</x:String>

src/Resources/Locales/zh_CN.axaml

@@ -560,6 +560,8 @@
   <x:String x:Key="Text.Stash.IncludeUntracked" xml:space="preserve">包含未跟踪的文件</x:String>
   <x:String x:Key="Text.Stash.Message" xml:space="preserve">信息 ：</x:String>
   <x:String x:Key="Text.Stash.Message.Placeholder" xml:space="preserve">选填，用于命名此贮藏</x:String>
+  <x:String x:Key="Text.Stash.OnlyStagedChanges" xml:space="preserve">仅贮藏暂存区的变更</x:String>
+  <x:String x:Key="Text.Stash.TipForSelectedFiles" xml:space="preserve">选中文件的所有变更均会被贮藏！</x:String>
   <x:String x:Key="Text.Stash.Title" xml:space="preserve">贮藏本地变更</x:String>
   <x:String x:Key="Text.StashCM.Apply" xml:space="preserve">应用(apply)</x:String>
   <x:String x:Key="Text.StashCM.Drop" xml:space="preserve">删除(drop)</x:String>

src/Resources/Locales/zh_TW.axaml

@@ -565,6 +565,8 @@
   <x:String x:Key="Text.Stash.IncludeUntracked" xml:space="preserve">包含未追蹤的檔案</x:String>
   <x:String x:Key="Text.Stash.Message" xml:space="preserve">擱置變更訊息:</x:String>
   <x:String x:Key="Text.Stash.Message.Placeholder" xml:space="preserve">選填，用於命名此擱置變更</x:String>
+  <x:String x:Key="Text.Stash.OnlyStagedChanges" xml:space="preserve">僅擱置已暫存的變更</x:String>
+  <x:String x:Key="Text.Stash.TipForSelectedFiles" xml:space="preserve">選中檔案的所有變更均會被擱置！</x:String>
   <x:String x:Key="Text.Stash.Title" xml:space="preserve">擱置本機變更</x:String>
   <x:String x:Key="Text.StashCM.Apply" xml:space="preserve">套用 (apply)</x:String>
   <x:String x:Key="Text.StashCM.Drop" xml:space="preserve">刪除 (drop)</x:String>

src/ViewModels/Reset.cs

@@ -27,7 +27,7 @@ namespace SourceGit.ViewModels
             _repo = repo;
             Current = current;
             To = to;
-            SelectedMode = Models.ResetMode.Supported[0];
+            SelectedMode = Models.ResetMode.Supported[1];
             View = new Views.Reset() { DataContext = this };
         }
 

src/ViewModels/StashChanges.cs

@@ -11,7 +11,7 @@ namespace SourceGit.ViewModels
             set;
         }
 
-        public bool CanIgnoreUntracked
+        public bool HasSelectedFiles
         {
             get;
         }
@@ -22,21 +22,28 @@ namespace SourceGit.ViewModels
             set;
         }
 
-        public StashChanges(Repository repo, List<Models.Change> changes, bool onlyStaged, bool canIgnoreUntracked)
+        public bool OnlyStaged
+        {
+            get;
+            set;
+        }
+
+        public StashChanges(Repository repo, List<Models.Change> changes, bool hasSelectedFiles)
         {
             _repo = repo;
             _changes = changes;
-            _onlyStaged = onlyStaged;
 
-            CanIgnoreUntracked = canIgnoreUntracked;
+            HasSelectedFiles = hasSelectedFiles;
             IncludeUntracked = true;
+            OnlyStaged = false;
+
             View = new Views.StashChanges() { DataContext = this };
         }
 
         public override Task<bool> Sure()
         {
             var jobs = _changes;
-            if (CanIgnoreUntracked && !IncludeUntracked)
+            if (!HasSelectedFiles && !IncludeUntracked)
             {
                 jobs = new List<Models.Change>();
                 foreach (var job in _changes)
@@ -56,7 +63,7 @@ namespace SourceGit.ViewModels
 
             return Task.Run(() =>
             {
-                var succ = new Commands.Stash(_repo.FullPath).Push(jobs, Message, _onlyStaged);
+                var succ = new Commands.Stash(_repo.FullPath).Push(jobs, Message, !HasSelectedFiles && OnlyStaged);
                 CallUIThread(() =>
                 {
                     _repo.MarkWorkingCopyDirtyManually();
@@ -68,6 +75,5 @@ namespace SourceGit.ViewModels
 
         private readonly Repository _repo = null;
         private readonly List<Models.Change> _changes = null;
-        private readonly bool _onlyStaged = false;
     }
 }

src/ViewModels/WorkingCopy.cs

@@ -318,9 +318,9 @@ namespace SourceGit.ViewModels
                 return;
 
             if (autoStart)
-                PopupHost.ShowAndStartPopup(new StashChanges(_repo, _cached, false, true));
+                PopupHost.ShowAndStartPopup(new StashChanges(_repo, _cached, false));
             else
-                PopupHost.ShowPopup(new StashChanges(_repo, _cached, false, true));
+                PopupHost.ShowPopup(new StashChanges(_repo, _cached, false));
         }
 
         public void StageSelected(Models.Change next)
@@ -523,9 +523,8 @@ namespace SourceGit.ViewModels
                     stash.Click += (_, e) =>
                     {
                         if (PopupHost.CanCreatePopup())
-                        {
-                            PopupHost.ShowPopup(new StashChanges(_repo, _selectedUnstaged, false, false));
-                        }
+                            PopupHost.ShowPopup(new StashChanges(_repo, _selectedUnstaged, true));
+
                         e.Handled = true;
                     };
 
@@ -843,7 +842,7 @@ namespace SourceGit.ViewModels
                 stash.Click += (_, e) =>
                 {
                     if (PopupHost.CanCreatePopup())
-                        PopupHost.ShowPopup(new StashChanges(_repo, _selectedUnstaged, false, false));
+                        PopupHost.ShowPopup(new StashChanges(_repo, _selectedUnstaged, true));
 
                     e.Handled = true;
                 };
@@ -928,7 +927,7 @@ namespace SourceGit.ViewModels
                 stash.Click += (_, e) =>
                 {
                     if (PopupHost.CanCreatePopup())
-                        PopupHost.ShowPopup(new StashChanges(_repo, _selectedStaged, true, false));
+                        PopupHost.ShowPopup(new StashChanges(_repo, _selectedStaged, true));
 
                     e.Handled = true;
                 };
@@ -1097,7 +1096,7 @@ namespace SourceGit.ViewModels
                 stash.Click += (_, e) =>
                 {
                     if (PopupHost.CanCreatePopup())
-                        PopupHost.ShowPopup(new StashChanges(_repo, _selectedStaged, true, false));
+                        PopupHost.ShowPopup(new StashChanges(_repo, _selectedStaged, true));
 
                     e.Handled = true;
                 };

src/Views/StashChanges.axaml

@@ -11,7 +11,7 @@
     <TextBlock FontSize="18"
                Classes="bold"
                Text="{DynamicResource Text.Stash.Title}"/>
-    <Grid Margin="8,16,0,0" RowDefinitions="32,Auto" ColumnDefinitions="120,*">
+    <Grid Margin="8,16,0,0" RowDefinitions="32,Auto,Auto" ColumnDefinitions="120,*">
       <TextBlock Grid.Row="0" Grid.Column="0" 
                  HorizontalAlignment="Right" 
                  Margin="8,0" 
@@ -23,11 +23,24 @@
                Watermark="{DynamicResource Text.Stash.Message.Placeholder}"
                v:AutoFocusBehaviour.IsEnabled="True"/>
 
+      <TextBlock Grid.Row="1" Grid.Column="1"
+                 Margin="0,4,0,0"
+                 Text="{DynamicResource Text.Stash.TipForSelectedFiles}"
+                 TextWrapping="Wrap"
+                 Foreground="{DynamicResource Brush.FG2}"
+                 IsVisible="{Binding HasSelectedFiles}"/>
+
       <CheckBox Grid.Row="1" Grid.Column="1"
                 Height="32"
                 Content="{DynamicResource Text.Stash.IncludeUntracked}"
                 IsChecked="{Binding IncludeUntracked, Mode=TwoWay}"
-                IsVisible="{Binding CanIgnoreUntracked}"/>
+                IsVisible="{Binding !HasSelectedFiles}"/>
+
+      <CheckBox Grid.Row="2" Grid.Column="1"
+                Height="32"
+                Content="{DynamicResource Text.Stash.OnlyStagedChanges}"
+                IsChecked="{Binding OnlyStaged, Mode=TwoWay}"
+                IsVisible="{Binding !HasSelectedFiles}"/>
     </Grid>
   </StackPanel>
 </UserControl>