How can I tell Emacs my git branch has changed?

Question

At the bottom of my Emacs 23 editor, I notice that Emacs is aware that I am working in a directory that is under version control, what that version control system is, and what branch I am currently on. Pretty cool! But say I am on the master branch, and from the command line I do a git commit, followed by a git checkout <branch>. Emacs still shows me being on the master branch. How do I refresh Emacs so that it reflects the branch I am currently on without closing down all my buffers and restarting it?

What happens if you just reload the file? – gcbenison Jun 11 '13 at 18:09 — gcbenison, Jun 11 '13 at 18:09
Is there an Emacs command to reload the file? – Houdini Jun 11 '13 at 18:11 — Houdini, Jun 11 '13 at 18:11
`revert-buffer` like giordano suggested – Bleeding Fingers Jun 11 '13 at 18:12 — Bleeding Fingers, Jun 11 '13 at 18:12

giordano · Accepted Answer · 2014-02-26T00:35:27.270

15

M-x revert-buffer but I suggest you to use magit-mode to manage your git repos in Emacs.

For the record, I use to bind revert-buffer to F5:

(global-set-key [f5] 'revert-buffer)

edited Feb 26 '14 at 00:35

answered Jun 11 '13 at 18:10

giordano

8,087
3
23
48

Thanks a lot! Key-binding is perfect for now, but later looks like `magit-mode` is a more permanent solution. – Houdini Jun 11 '13 at 18:27
5

@Houdini to avoid the annoying confirmation everytime you hit *F5*. Use `(global-set-key [f5] (lambda () (interactive) (revert-buffer nil t)))` – Bleeding Fingers Jun 11 '13 at 19:31

score 10 · Answer 2 · answered Jun 12 '13 at 01:02

10

You can revert buffer automatically by enable global-auto-revert-mode. If you want to enable it, please add following code to your configuration file.

(global-auto-revert-mode 1)
(setq auto-revert-check-vc-info t)

answered Jun 12 '13 at 01:02

syohex

2,293
17
16

1

If you open too many buffers, and your machine is hot, then you should set `auto-revert-interval' much bigger. – ngn999 Jul 19 '16 at 14:04

score 6 · Answer 3 · answered Jun 11 '13 at 18:20

6

To add to giordano's answer, if many files, which are under git, are opened. Then open ibuffer (M-xibuffer) mark the buffers you want to reload using m and then E followed by (revert-buffer nil t).

answered Jun 11 '13 at 18:20

Bleeding Fingers

6,993
7
46
74

1

No need for the eval -- `V` runs `ibuffer-do-revert`. And of course there are many ways to mark buffers en-masse in ibuffer, so use `C-h m` to check out its features if you're unfamiliar with it. – phils Jun 11 '13 at 23:17
3

In addition, if you're mixing ibuffer and version control, you probably want to check out [ibuffer-vc](https://github.com/purcell/ibuffer-vc) as well. – phils Jun 11 '13 at 23:26
Great thanks phils. I am finally starting to try using my version control system and editor in conjunction with each other, as opposed to jumping back to the command line for `git` commands. – Houdini Jun 12 '13 at 18:05

How can I tell Emacs my git branch has changed?

3 Answers3