From 5485c37b38da4e4b29f55177357316888e419465 Mon Sep 17 00:00:00 2001
From: Andy Stewart <boss@airbladesoftware.com>
Date: Mon, 27 Jan 2014 14:51:19 +0100
Subject: [PATCH] Fix bug in realtime diff of non-current buffer.

This bug meant that a realtime diff of a buffer which wasn't the current
one -- which happens during GitGutterAll() -- diffed the staged version
of the buffer against the current buffer's contents instead of the
buffer's contents.
---
 autoload/diff.vim    | 10 +---------
 autoload/utility.vim | 11 +++++++++++
 2 files changed, 12 insertions(+), 9 deletions(-)

diff --git a/autoload/diff.vim b/autoload/diff.vim
index 554e3e1..29b88ba 100644
--- a/autoload/diff.vim
+++ b/autoload/diff.vim
@@ -25,15 +25,7 @@ function! diff#run_diff(realtime, use_external_grep)
   let cmd = utility#escape(cmd)
 
   if a:realtime
-    if &fileformat ==# "dos"
-      let eol = "\r\n"
-    elseif &fileformat ==# "mac"
-      let eol = "\r"
-    else
-      let eol = "\n"
-    endif
-    let buffer_contents = join(getline(1, '$'), eol) . eol
-    let diff = system(utility#command_in_directory_of_file(cmd), buffer_contents)
+    let diff = system(utility#command_in_directory_of_file(cmd), utility#buffer_contents())
   else
     let diff = system(utility#command_in_directory_of_file(cmd))
   endif
diff --git a/autoload/utility.vim b/autoload/utility.vim
index 8a67b4a..110c9dc 100644
--- a/autoload/utility.vim
+++ b/autoload/utility.vim
@@ -36,6 +36,17 @@ function! utility#save_last_seen_change(file)
   call setbufvar(a:file, 'gitgutter_last_tick', getbufvar(a:file, 'changedtick'))
 endfunction
 
+function! utility#buffer_contents()
+  if &fileformat ==# "dos"
+    let eol = "\r\n"
+  elseif &fileformat ==# "mac"
+    let eol = "\r"
+  else
+    let eol = "\n"
+  endif
+  return join(getbufline(s:file, 1, '$'), eol) . eol
+endfunction
+
 " https://github.com/tpope/vim-dispatch/blob/9cdd05a87f8a47120335be03dfcd8358544221cd/autoload/dispatch/windows.vim#L8-L17
 function! utility#escape(str)
   if &shellxquote ==# '"'