From: Ryan Barrett <ryanb@google.com>
Date: Fri, 1 Jun 2012 20:55:03 +0000 (-0400)
Subject: misc/emacs: stop go-mode from spuriously marking the buffer modified when it loads
X-Git-Tag: go1.1rc2~3033
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=c9e698bdfb77bd74bc6faab88e39203ae0571eb0;p=gostls13.git

misc/emacs: stop go-mode from spuriously marking the buffer modified when it loads

R=golang-dev, sameer, bradfitz
CC=golang-dev, jba
https://golang.org/cl/6213056
---

diff --git a/misc/emacs/go-mode.el b/misc/emacs/go-mode.el
index 0e7e218439..2f20415010 100644
--- a/misc/emacs/go-mode.el
+++ b/misc/emacs/go-mode.el
@@ -706,8 +706,12 @@ functions, and some types.  It also provides indentation that is
   ;; Remove stale text properties
   (save-restriction
     (widen)
-    (remove-text-properties 1 (point-max)
-                            '(go-mode-cs nil go-mode-nesting nil)))
+    (let ((modified (buffer-modified-p)))
+      (remove-text-properties 1 (point-max)
+                              '(go-mode-cs nil go-mode-nesting nil))
+      ;; remove-text-properties marks the buffer modified. undo that if it
+      ;; wasn't originally marked modified.
+      (set-buffer-modified-p modified)))
 
   ;; Reset the syntax mark caches
   (setq go-mode-mark-cs-end      1