bug#41572: 28.0.50; [PATCH] Support plain project marked with file .emacs-project

[Dmitry Gutov <dgutov@yandex.ru>]

On 28/11/2022 15:22, Eli Zaretskii wrote:
>> Date: Mon, 28 Nov 2022 14:30:15 +0200
>> Cc:philipk@posteo.net,rudi@constantly.at,eric@ericabrahamsen.net,
>>   cjpeople2013@gmail.com,theo@thornhill.no,mardani29@yahoo.es,
>>   joaotavora@gmail.com,manuel.uberti@inventati.org,juri@linkov.net,
>>   salutis@me.com,arstoffel@gmail.com,41572@debbugs.gnu.org
>> From: Dmitry Gutov<dgutov@yandex.ru>
>>
>>> If this type of project doesn't have to be "backed by a VCS", then what does
>>> distinguish it from other types of projects?
>> It difficult to come up with a name using a principle like that when the
>> preceding effort was made to be able to accommodate the projects of
>> different users with new usage patterns.
>>
>> It is "VC aware" or maybe "VC friendly", and it works with projects in
>> the shape of directory trees. But both characterizations can apply to
>> e.g. Projectile as well. Except the latter is probably more flexible,
>> and our backend is probably faster, especially over Tramp.
>>
>> But if we just compare with the other builtin ('transient'), then its
>> VC awareness is probably the key thing. And the customization options it
>> has (which 'transient' doesn't).
> AFAIU, the 'transient' builtin also works with projects whose shape is a
> directory tree, right?  If so, how is 'transient' different from the
> 'VC-aware' type?

That's right.

So if we are comparing against 'transient' only, then VC awareness is 
probably the key thing. And the customization options.