❦ 19 août 2014 21:44 -0400, Barry Warsaw <ba...@debian.org> : > * Switching branches makes my editor unhappy. > > Why is this a PITA? Because Emacs will notice that a file you're visiting in > a buffer is changed and will prompt you reload it. I guess because > checkout-patched deletes the debian directory and update-patches restores it, > it makes Emacs unhappy. I suppose you also have to be careful not to write a > buffer to the debian/ directory when in the patched-<pkg> branch.
I am using this snippet:
#+begin_src elisp
(defun vbe:revert-buffer-keep-history (&rest -)
"Revert buffer but keep undo history"
(clear-visited-file-modtime)
(widen)
(let ((inhibit-read-only t)
(current-point (point)))
(delete-region (point-min) (point-max))
(insert-file-contents (buffer-file-name))
(not-modified)
(goto-char current-point)
(set-visited-file-modtime)))
(setq revert-buffer-function 'vbe:revert-buffer-keep-history)
(global-auto-revert-mode 1) ; Auto revert (when no pending changes)
#+end_src
This makes auto revert automatic but don't lose the previous content
by keeping the undo history. It also keeps your current position in the
file.
--
Write and test a big program in small pieces.
- The Elements of Programming Style (Kernighan & Plauger)
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