Re: Subprojects in project.el

[Dmitry Gutov]

On 25/11/22 09:42, Juri Linkov wrote:
> > The idea of customizing the projects with a list of relative subproject
> > directory file names solves those downsides, but comes with lack of
> > automation: you have to do it for every relevant project, and not forget to
> > update the settings as the project structure changes. Which might also be
> > a pain e.g. when switching branches, if your dir-locals.el is not checked
> > in.
> There is no need to change dir-locals.el.  The project root can be
> defined using 'dir-locals-set-class-variables'.  Then it can be
> assigned to any directory using 'dir-locals-set-directory-class'.

How would we fetch the exact root at runtime, if the value is applied to 
the whole directory subtree?