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Showing content from https://lists.gnu.org/archive/html/emacs-devel/2022-11/msg01738.html below:

Re: Subprojects in project.el

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] From: Juri Linkov Subject: Re: Subprojects in project.el Date: Sun, 27 Nov 2022 21:25:16 +0200 User-agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (x86_64-pc-linux-gnu) 
> Anyway, indeally I want these three main operations (find-file, grep,
> compile) to run in the inner sub-project by default.  By typing
> something more, like, say, a negative prefix argument, I want to be able
> to be given the possibility to operate on the super-project instead.

Or generally a numeric prefix argument could define the depth of the
nested project to use.  Then every level could set own root, e.g.:

  (dir-locals-set-class-variables 'project-root ((nil . (project-root t))))
  (dir-locals-set-directory-class "~/Source/very-big-project" 'project-root)
  (dir-locals-set-directory-class "~/Source/very-big-project/foo" 'project-root)
  (dir-locals-set-directory-class "~/Source/very-big-project/foo/bar" 
'project-root)

While using e.g. 'C-x p g' in "~/Source/very-big-project/foo/bar"
by default will use the closest root, i.e. the same directory,
but 'M-1 C-x p g' will use the root "~/Source/very-big-project/foo",
and 'M-2 C-x p g' will use the root "~/Source/very-big-project/".

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