bug#66317: Project mode-line

[Eli Zaretskii]

> Cc: 66317@debbugs.gnu.org, Eshel Yaron <me@eshelyaron.com>
> From: Juri Linkov <juri@linkov.net>
> Date: Tue, 03 Oct 2023 20:58:49 +0300
> 
> > On 03/10/2023 20:11, Juri Linkov wrote:
> >>> This looks nice (I actually have something similar in my
> >>> `mode-line-format` already), but I think that modifying
> >>> `mode-line-format` when project.el is loaded is a bit problematic.
> >>> Perhaps a better alternative would be to define a variable that holds
> >>> this mode-line construct, along with an autoloaded function that people
> >>> can call from their init files to actually add this construct to
> >>> `mode-line-format`.  WDYT?
> >> In bug#63469 I implemented 'project-mode' with the buffer-local
> >> variable 'project-name'.  But due to objections I rewrote this
> >> to simpler and direct implementation.  I could revive the previous
> >> patch now.
> >
> > Could you make it a user option 'project-show-in-mode-line' or similar?
> >
> > Minor mode 'project-mode-line-mode' would also be okay.
> 
> But there is no such mode for vc-mode (vc-mode is not a proper mode).

I indeed think that an optional variable to control the mode-line
additions would be better than a minor mode: this is too little
functionality to justify a minor mode.