Feature: Add delete worktrees checkbox when deleting a branch

src/Resources/Locales/en_US.axaml

@@ -348,6 +348,7 @@
   <x:String x:Key="Text.DeinitSubmodule.Path" xml:space="preserve">Submodule:</x:String>
   <x:String x:Key="Text.DeleteBranch" xml:space="preserve">Delete Branch</x:String>
   <x:String x:Key="Text.DeleteBranch.Branch" xml:space="preserve">Branch:</x:String>
+  <x:String x:Key="Text.DeleteBranch.DeleteWorktrees" xml:space="preserve">Delete worktrees for this branch</x:String>
   <x:String x:Key="Text.DeleteBranch.Force" xml:space="preserve">Force delete even if it contains unmerged commit(s)</x:String>
   <x:String x:Key="Text.DeleteBranch.IsRemoteTip" xml:space="preserve">You are about to delete a remote branch!!!</x:String>
   <x:String x:Key="Text.DeleteBranch.WithTrackingRemote" xml:space="preserve">Also delete remote branch ${0}$</x:String>

src/ViewModels/DeleteBranch.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using System.Threading.Tasks;
 
 namespace SourceGit.ViewModels
@@ -32,6 +33,22 @@ public bool Force
             set;
         }
 
+        public List<Worktree> AttachedWorktrees
+        {
+            get;
+        } = [];
+
+        public bool HasAttachedWorktrees
+        {
+            get => AttachedWorktrees.Count > 0;
+        }
+
+        public bool DeleteWorktrees
+        {
+            get;
+            set;
+        }
+
         public DeleteBranch(Repository repo, Models.Branch branch)
         {
             _repo = repo;
@@ -46,6 +63,15 @@ public DeleteBranch(Repository repo, Models.Branch branch)
                     DeleteUpstreamTip = App.Text("DeleteBranch.WithTrackingRemote", upstream.FriendlyName);
                 }
             }
+
+            if (branch.IsLocal)
+            {
+                foreach (var wt in _repo.Worktrees)
+                {
+                    if (!wt.IsMain && !wt.IsCurrent && wt.Backend.Branch.Equals(branch.FullName, StringComparison.Ordinal))
+                        AttachedWorktrees.Add(wt);
+                }
+            }
         }
 
         public override async Task<bool> Sure()
@@ -61,6 +87,28 @@ public override async Task<bool> Sure()
             {
                 do
                 {
+                    if (DeleteWorktrees)
+                    {
+                        // Re-read worktrees, since a previous (failed) attempt may have already removed some of them.
+                        succ = true;
+                        var current = await new Commands.Worktree(_repo.FullPath).ReadAllAsync();
+                        foreach (var wt in AttachedWorktrees)
+                        {
+                            if (!current.Exists(x => x.FullPath.Equals(wt.FullPath, StringComparison.Ordinal)))
+                                continue;
+
+                            succ = await new Commands.Worktree(_repo.FullPath)
+                                .Use(log)
+                                .RemoveAsync(wt.FullPath, Force);
+
+                            if (!succ)
+                                break;
+                        }
+
+                        if (!succ)
+                            break;
+                    }
+
                     succ = await new Commands.Branch(_repo.FullPath, Target.Name)
                         .Use(log)
                         .DeleteLocalAsync(Force);

src/Views/DeleteBranch.axaml

@@ -18,7 +18,7 @@
                  Text="{DynamicResource Text.DeleteBranch}"/>
     </StackPanel>
 
-    <Grid Margin="0,16,8,0" RowDefinitions="32,Auto,Auto,Auto" ColumnDefinitions="120,*">
+    <Grid Margin="0,16,8,0" RowDefinitions="32,Auto,Auto,Auto,Auto" ColumnDefinitions="120,*">
       <TextBlock Grid.Row="0" Grid.Column="0" HorizontalAlignment="Right" Text="{DynamicResource Text.DeleteBranch.Branch}"/>
       <StackPanel Grid.Row="0" Grid.Column="1" Orientation="Horizontal">
         <Path Width="14" Height="14" Margin="8,0" Data="{StaticResource Icons.Branch}"/>
@@ -55,7 +55,14 @@
         </CheckBox>
       </Border>
 
-      <StackPanel Grid.Row="3" Grid.Column="1"
+      <Border Grid.Row="3" Grid.Column="1"
+              Height="32"
+              IsVisible="{Binding HasAttachedWorktrees, Mode=OneWay}">
+        <CheckBox Content="{DynamicResource Text.DeleteBranch.DeleteWorktrees}"
+                  IsChecked="{Binding DeleteWorktrees, Mode=TwoWay}"/>
+      </Border>
+
+      <StackPanel Grid.Row="4" Grid.Column="1"
                   Height="32"
                   Orientation="Horizontal"
                   IsVisible="{Binding !Target.IsLocal, Mode=OneWay}">