* Re: [Emacs-diffs] emacs-25 e55d0db: Fix revision calculation in vc-git-mode-line-string
[not found] ` <E1avHst-0007zE-3Z@vcs.savannah.gnu.org>
@ 2016-04-27 9:40 ` Dmitry Gutov
2016-04-27 14:23 ` Leo Liu
0 siblings, 1 reply; 3+ messages in thread
From: Dmitry Gutov @ 2016-04-27 9:40 UTC (permalink / raw
To: emacs-devel, Leo Liu
On 04/27/2016 08:19 AM, Leo Liu wrote:
> branch: emacs-25
> commit e55d0db95700edd11e71660729566c67b6c563b3
> Author: Leo Liu <sdl.web@gmail.com>
> Commit: Leo Liu <sdl.web@gmail.com>
>
> Fix revision calculation in vc-git-mode-line-string
>
> * lisp/vc/vc-git.el (vc-git-mode-line-string): Use
> vc-git-working-revision because vc-working-revision needs to decide
> the backend and may return nil.
Why was that bad?
vc-working-revision also caches the result, and vc-git-working-revision
does not. Do you want Emacs to call Git multiple times per second?
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [Emacs-diffs] emacs-25 e55d0db: Fix revision calculation in vc-git-mode-line-string
2016-04-27 9:40 ` [Emacs-diffs] emacs-25 e55d0db: Fix revision calculation in vc-git-mode-line-string Dmitry Gutov
@ 2016-04-27 14:23 ` Leo Liu
2016-04-27 14:55 ` Dmitry Gutov
0 siblings, 1 reply; 3+ messages in thread
From: Leo Liu @ 2016-04-27 14:23 UTC (permalink / raw
To: emacs-devel
On 2016-04-27 12:40 +0300, Dmitry Gutov wrote:
> Why was that bad?
>
> vc-working-revision also caches the result, and
> vc-git-working-revision does not. Do you want Emacs to call Git
> multiple times per second?
Thanks, I hadn't paid attention to the cache issue. I pushed a different
fix that doesn't bypass the cache.
We need to avoid deciding the backend at that point and
vc-git-mode-line-string expects REV to be non-nil or the substring form
will complain.
Leo
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [Emacs-diffs] emacs-25 e55d0db: Fix revision calculation in vc-git-mode-line-string
2016-04-27 14:23 ` Leo Liu
@ 2016-04-27 14:55 ` Dmitry Gutov
0 siblings, 0 replies; 3+ messages in thread
From: Dmitry Gutov @ 2016-04-27 14:55 UTC (permalink / raw
To: Leo Liu, emacs-devel
On 04/27/2016 05:23 PM, Leo Liu wrote:
> We need to avoid deciding the backend at that point and
> vc-git-mode-line-string expects REV to be non-nil or the substring form
> will complain.
..........
..........
..........
Oh, you mean when the HEAD is in detached mode? I see.
The current version looks fine, thanks.
^ permalink raw reply [flat|nested] 3+ messages in thread
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[not found] ` <E1avHst-0007zE-3Z@vcs.savannah.gnu.org>
2016-04-27 9:40 ` [Emacs-diffs] emacs-25 e55d0db: Fix revision calculation in vc-git-mode-line-string Dmitry Gutov
2016-04-27 14:23 ` Leo Liu
2016-04-27 14:55 ` Dmitry Gutov
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