From 5e9cbda7beaa185751ffa99562653578db58fe51 Mon Sep 17 00:00:00 2001
From: Yury Khalyavin <y.khalyavin@kanobu.ru>
Date: Wed, 20 Jun 2012 10:54:36 +0400
Subject: [PATCH] Vundle can manage Vundle, when it cloned as git submodule

When vundle installed as git submodule, git create file '.git' instead of
directory '.git'.

And vundle cannot update by self :(
---
 autoload/vundle/installer.vim | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/autoload/vundle/installer.vim b/autoload/vundle/installer.vim
index 38a2436..036a756 100644
--- a/autoload/vundle/installer.vim
+++ b/autoload/vundle/installer.vim
@@ -204,7 +204,7 @@ endf
 
 func! s:sync(bang, bundle) abort
   let git_dir = expand(a:bundle.path().'/.git/', 1)
-  if isdirectory(git_dir)
+  if isdirectory(git_dir) || filereadable(expand(a:bundle.path().'/.git', 1))
     if !(a:bang) | return 'todate' | endif
     let cmd = 'cd '.shellescape(a:bundle.path()).' && git pull'