Re: Subprojects in project.el

[Juri Linkov]

> 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'.