feature<Dashboard>: add menu to unset upstream and cancel tracking when deleting related remote branches

src/Commands/Branch.cs

@@ -21,7 +21,12 @@ namespace SourceGit.Commands {
         }
 
         public void SetUpstream(string upstream) {
-            Args = $"branch {target} -u {upstream}";
+            Args = $"branch {target} ";
+            if (string.IsNullOrEmpty(upstream)) {
+                Args += "--unset-upstream";
+            } else {
+                Args += $"-u {upstream}";
+            }
             Exec();
         }
 

src/Resources/Locales/en_US.xaml

@@ -179,6 +179,7 @@
     <sys:String x:Key="Text.BranchCM.Delete">Delete '{0}'</sys:String>
     <sys:String x:Key="Text.BranchCM.Tracking">Tracking ...</sys:String>
     <sys:String x:Key="Text.BranchCM.CopyName">Copy Branch Name</sys:String>
+    <sys:String x:Key="Text.BranchCM.UnsetUpstream">Unset Upstream</sys:String>
 
     <sys:String x:Key="Text.RemoteCM.Fetch">Fetch '{0}'</sys:String>
     <sys:String x:Key="Text.RemoteCM.Edit">Edit '{0}'</sys:String>

src/Resources/Locales/zh_CN.xaml

@@ -178,6 +178,7 @@
     <sys:String x:Key="Text.BranchCM.Delete">删除 '{0}'</sys:String>
     <sys:String x:Key="Text.BranchCM.Tracking">切换上游分支...</sys:String>
     <sys:String x:Key="Text.BranchCM.CopyName">复制分支名</sys:String>
+    <sys:String x:Key="Text.BranchCM.UnsetUpstream">取消追踪</sys:String>
 
     <sys:String x:Key="Text.RemoteCM.Fetch">拉取 '{0}' 更新</sys:String>
     <sys:String x:Key="Text.RemoteCM.Edit">编辑 '{0}'</sys:String>

src/Views/Popups/DeleteBranch.xaml.cs

@@ -1,3 +1,4 @@
+using System;
 using System.Threading.Tasks;
 
 namespace SourceGit.Views.Popups {
@@ -8,6 +9,7 @@ namespace SourceGit.Views.Popups {
         private string repo = null;
         private string branch = null;
         private string remote = null;
+        private Action finishHandler = null;
 
         public DeleteBranch(string repo, string branch, string remote = null) {
             this.repo = repo;
@@ -20,6 +22,11 @@ namespace SourceGit.Views.Popups {
             else txtTarget.Text = $"{remote}/{branch}";
         }
 
+        public DeleteBranch Then(Action handler) {
+            this.finishHandler = handler;
+            return this;
+        }
+
         public override string GetTitle() {
             return App.Text("DeleteBranch");
         }
@@ -42,6 +49,7 @@ namespace SourceGit.Views.Popups {
                     exists.Filters.Remove(full);
                 }
                 
+                finishHandler?.Invoke();
                 Models.Watcher.SetEnabled(repo, true);
                 return true;
             });

src/Views/Widgets/Dashboard.xaml.cs

@@ -58,7 +58,7 @@ namespace SourceGit.Views.Widgets {
 
             var watcher = Models.Watcher.Get(repo.Path);
             watcher.Navigate += NavigateTo;
-            watcher.BranchChanged += UpdateBraches;
+            watcher.BranchChanged += UpdateBranches;
             watcher.BranchChanged += UpdateCommits;
             watcher.WorkingCopyChanged += UpdateWorkingCopy;
             watcher.StashChanged += UpdateStashes;
@@ -94,7 +94,7 @@ namespace SourceGit.Views.Widgets {
 
         #region DATA
         public void Refresh() {
-            UpdateBraches();
+            UpdateBranches();
             UpdateWorkingCopy();
             UpdateStashes();
             UpdateTags();
@@ -190,7 +190,7 @@ namespace SourceGit.Views.Widgets {
             foreach (var node in nodes) SortBranches(node.Children);
         }
 
-        private void UpdateBraches() {
+        private void UpdateBranches() {
             if (!isFirstLoaded) return;
 
             Task.Run(() => {
@@ -669,12 +669,22 @@ namespace SourceGit.Views.Widgets {
                     if (branch.Upstream == b.FullName) target.Icon = currentTrackingIcon;
                     target.Click += (o, e) => {
                         new Commands.Branch(repo.Path, branch.Name).SetUpstream(upstream);
-                        UpdateBraches();
+                        UpdateBranches();
                         e.Handled = true;
                     };
                     tracking.Items.Add(target);
                 }
 
+                var unsetUpstream = new MenuItem();
+                unsetUpstream.Header = App.Text("BranchCM.UnsetUpstream");
+                unsetUpstream.Click += (_, e) => {
+                    new Commands.Branch(repo.Path, branch.Name).SetUpstream(string.Empty);
+                    UpdateBranches();
+                    e.Handled = true;
+                };
+                tracking.Items.Add(new Separator());
+                tracking.Items.Add(unsetUpstream);
+
                 menu.Items.Add(tracking);
             }
 
@@ -784,7 +794,12 @@ namespace SourceGit.Views.Widgets {
             var delete = new MenuItem();
             delete.Header = App.Text("BranchCM.Delete", branch.Name);
             delete.Click += (o, e) => {
-                new Popups.DeleteBranch(repo.Path, branch.Name, branch.Remote).Show();
+                new Popups.DeleteBranch(repo.Path, branch.Name, branch.Remote)
+                    .Then(() => {
+                        repo.Branches.FindAll(item => item.Upstream == branch.FullName).ForEach(item =>
+                            new Commands.Branch(repo.Path, item.Name).SetUpstream(string.Empty));
+                    })
+                    .Show();
                 e.Handled = true;
             };