From a9a76e741806ce92c7de5aadee8d22c4863d94e4 Mon Sep 17 00:00:00 2001
From: leo <longshuang@msn.cn>
Date: Wed, 16 Jun 2021 15:58:51 +0800
Subject: [PATCH] feature<SubTree>: just link subtree when prefix is already
 exists

---
 src/Commands/SubTree.cs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/Commands/SubTree.cs b/src/Commands/SubTree.cs
index 6c963d09..62f632fe 100644
--- a/src/Commands/SubTree.cs
+++ b/src/Commands/SubTree.cs
@@ -1,4 +1,5 @@
 using System;
+using System.IO;
 
 namespace SourceGit.Commands {
     /// <summary>
@@ -17,6 +18,9 @@ namespace SourceGit.Commands {
         }
 
         public bool Add(string prefix, string source, string revision, bool squash, Action<string> onProgress) {
+            var path = Path.Combine(Cwd, prefix);
+            if (Directory.Exists(path)) return true;
+
             handler = onProgress;
             Args = $"subtree add --prefix=\"{prefix}\" {source} {revision}";
             if (squash) Args += " --squash";