From bfc1745f3b536f593eb0ea8525ae53a59b91d0d3 Mon Sep 17 00:00:00 2001
From: Tim Pope <code@tpope.net>
Date: Mon, 23 Jul 2018 13:55:40 -0400
Subject: [PATCH] Handle bare repository case when shelling out

---
 autoload/fugitive.vim | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/autoload/fugitive.vim b/autoload/fugitive.vim
index 7ec6047..b18b78b 100644
--- a/autoload/fugitive.vim
+++ b/autoload/fugitive.vim
@@ -128,6 +128,8 @@ function! s:TreeChomp(...) abort
       else
         let args = ['-C', tree] + args
       endif
+    else
+      let args = ['--git-dir=' . b:git_dir] . args
     endif
     return s:sub(s:System(call('fugitive#Prepare', args)),'\n$','')
   finally