Make command for retreiving line count work

src/Commands/QueryCommitChangedLines.cs

@@ -0,0 +1,43 @@
+using System.Text.RegularExpressions;
+
+namespace SourceGit.Commands
+{
+    public class QueryCommitChangedLines : Command
+    {
+        public QueryCommitChangedLines(string repo, string sha)
+        {
+            WorkingDirectory = repo;
+            Context = repo;
+            Args = $"show --numstat --oneline {sha}";
+        }
+
+        public (int, int) Result()
+        {
+            _addedLines = 0;
+            _removedLines = 0;
+            _firstLine = true;
+            Exec();
+            return (_addedLines, _removedLines);
+        }
+
+        protected override void OnReadline(string line)
+        {
+            if (_firstLine) {
+                _firstLine = false;
+                return;
+            }
+
+            var parts = Regex.Split(line, @"\s+");
+
+            if (parts.Length >= 2)
+            {
+                _addedLines += int.Parse(parts[0]);
+                _removedLines += int.Parse(parts[1]);
+            }
+        }
+
+        private int _addedLines;
+        private int _removedLines;
+        private bool _firstLine;
+    }
+}

src/ViewModels/CommitDetail.cs

@@ -635,6 +635,13 @@ namespace SourceGit.ViewModels
                 Dispatcher.UIThread.Invoke(() => FullMessage = fullMessage);
             });
 
+            Task.Run(() =>
+            {
+                var lines = new Commands.QueryCommitChangedLines(_repo.FullPath, _commit.SHA).Result();
+                Console.WriteLine(lines);
+                //Dispatcher.UIThread.Invoke(() => FullMessage = fullMessage);
+            });
+
             Task.Run(() =>
             {
                 var signInfo = new Commands.QueryCommitSignInfo(_repo.FullPath, _commit.SHA, !_repo.HasAllowedSignersFile).Result();