From 72d0d497216e677adcde06379e88ca0143ddf2e5 Mon Sep 17 00:00:00 2001
From: Simon Ruderich <simon@ruderich.org>
Date: Fri, 2 Dec 2011 15:22:05 +0100
Subject: [PATCH] vimrc: Add :DiffOrig command.

---
 vimrc | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/vimrc b/vimrc
index c39fa3c..7aa91ce 100644
--- a/vimrc
+++ b/vimrc
@@ -493,7 +493,7 @@ if has('autocmd')
 endif
 
 
-" CUSTOM FUNCTIONS
+" CUSTOM FUNCTIONS AND COMMANDS
 
 if has('eval')
 " New text-objects ii and ai to work on text with the same indentation. Thanks
@@ -538,4 +538,21 @@ if has('eval')
         endif
     endfunction
 
+" Convenient command to see the difference between the current buffer and the
+" file it was loaded from, thus the changes you made. Thanks to the
+" vimrc_example.vim file in Vim's source. Modified to use the same filetype
+" for the diffed file than the filetype for the original file.
+    if !exists(":DiffOrig")
+        command DiffOrig
+            \ let s:diff_orig_filetype = &filetype
+            \ | vertical new
+            \ | let &filetype = s:diff_orig_filetype
+            \ | unlet s:diff_orig_filetype
+            \ | set buftype=nofile
+            \ | read ++edit #
+            \ | 0d_
+            \ | diffthis
+            \ | wincmd p
+            \ | diffthis
+    endif
 endif
-- 
2.45.2