Add "Copy Message" to context-menu for Stash item (#1430)

* Refactor: Simplify parsing in QueryStashes, by passing the `-z` argument to `git stash list` for item separation.
* Add "Copy Message" command in stash-item context-menu.

src/Commands/QueryStashes.cs

@@ -7,11 +7,9 @@ namespace SourceGit.Commands
     {
         public QueryStashes(string repo)
         {
-            _boundary = $"-----BOUNDARY_OF_COMMIT{Guid.NewGuid()}-----";
-
             WorkingDirectory = repo;
             Context = repo;
-            Args = $"stash list --no-show-signature --format=\"%H%n%P%n%ct%n%gd%n%B%n{_boundary}\"";
+            Args = $"stash list -z --no-show-signature --format=\"%H%n%P%n%ct%n%gd%n%B\"";
         }
 
         public List<Models.Stash> Result()
@@ -21,66 +19,57 @@ namespace SourceGit.Commands
             if (!rs.IsSuccess)
                 return outs;
 
-            var nextPartIdx = 0;
+            var items = rs.StdOut.Split('\0', System.StringSplitOptions.RemoveEmptyEntries);
-            var start = 0;
+            foreach (var item in items)
-            var end = rs.StdOut.IndexOf('\n', start);
-            while (end > 0)
             {
-                var line = rs.StdOut.Substring(start, end - start);
+                var current = new Models.Stash();
 
-                switch (nextPartIdx)
+                var nextPartIdx = 0;
+                var start = 0;
+                var end = item.IndexOf('\n', start);
+                while (end > 0 && nextPartIdx < 4)
                 {
-                    case 0:
+                    var line = item.Substring(start, end - start);
-                        _current = new Models.Stash() { SHA = line };
-                        outs.Add(_current);
-                        break;
-                    case 1:
-                        ParseParent(line);
-                        break;
-                    case 2:
-                        _current.Time = ulong.Parse(line);
-                        break;
-                    case 3:
-                        _current.Name = line;
-                        break;
-                    default:
-                        var boundary = rs.StdOut.IndexOf(_boundary, end + 1, StringComparison.Ordinal);
-                        if (boundary > end)
-                        {
-                            _current.Message = rs.StdOut.Substring(start, boundary - start - 1);
-                            end = boundary + _boundary.Length;
-                        }
-                        else
-                        {
-                            _current.Message = rs.StdOut.Substring(start);
-                            end = rs.StdOut.Length - 2;
-                        }
 
-                        nextPartIdx = -1;
+                    switch (nextPartIdx)
+                    {
+                        case 0:
+                            current.SHA = line;
+                            break;
+                        case 1:
+                            ParseParent(line, ref current);
+                            break;
+                        case 2:
+                            current.Time = ulong.Parse(line);
+                            break;
+                        case 3:
+                            current.Name = line;
+                            break;
+                    }
+
+                    nextPartIdx++;
+
+                    start = end + 1;
+                    if (start >= item.Length - 1)
                         break;
+
+                    end = item.IndexOf('\n', start);
                 }
 
-                nextPartIdx++;
+                if (start < item.Length)
+                    current.Message = item.Substring(start);
 
-                start = end + 1;
+                outs.Add(current);
-                if (start >= rs.StdOut.Length - 1)
-                    break;
-
-                end = rs.StdOut.IndexOf('\n', start);
             }
-
             return outs;
         }
 
-        private void ParseParent(string data)
+        private void ParseParent(string data, ref Models.Stash current)
         {
             if (data.Length < 8)
                 return;
 
-            _current.Parents.AddRange(data.Split(separator: ' ', options: StringSplitOptions.RemoveEmptyEntries));
+            current.Parents.AddRange(data.Split(separator: ' ', options: StringSplitOptions.RemoveEmptyEntries));
         }
-
-        private Models.Stash _current = null;
-        private readonly string _boundary;
     }
 }

src/Resources/Locales/en_US.axaml

@@ -697,6 +697,7 @@
   <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.CopyMessage" xml:space="preserve">Copy Message</x:String>
   <x:String x:Key="Text.StashCM.Drop" xml:space="preserve">Drop</x:String>
   <x:String x:Key="Text.StashCM.SaveAsPatch" xml:space="preserve">Save as Patch...</x:String>
   <x:String x:Key="Text.StashDropConfirm" xml:space="preserve">Drop Stash</x:String>

src/ViewModels/StashesPage.cs

@@ -194,11 +194,21 @@ namespace SourceGit.ViewModels
                 e.Handled = true;
             };
 
+            var copy = new MenuItem();
+            copy.Header = App.Text("StashCM.CopyMessage");
+            copy.Icon = App.CreateMenuIcon("Icons.Copy");
+            copy.Click += (_, ev) =>
+            {
+                App.CopyText(stash.Message);
+                ev.Handled = true;
+            };
+
             var menu = new ContextMenu();
             menu.Items.Add(apply);
             menu.Items.Add(drop);
             menu.Items.Add(new MenuItem { Header = "-" });
             menu.Items.Add(patch);
+            menu.Items.Add(copy);
             return menu;
         }