consult-ripgrep with git submodules

[nicolas-graves]

Hi @minad ,

I have a project where I use git submodules. When I consult-ripgrep in a submodule, I expect to ripgrep in this git submodule rather than in the whole project. There seems to be a variable to govern that in project.el: project-vc-merge-submodules. It would be nice if some consult commands could honor that variable by executing in the subproject rather than in the project as a whole.

This way we could properly separate project and subprojects : with a .rgignore that ignores submodules, I would be able to ripgrep only where I want both in the project and in each subproject.

WDYT?

[minad]

Right now Consult can only query for the current project directory and doesn't have any other further more fine-grained project information. Therefore this seems mostly out of scope for Consult.

[nicolas-graves]

I'll take a look soon and comment here once I've found a suitable solution. Thanks for your work.

[nicolas-graves]

Actually project-vc-merge-submodules is currently only used when listing buffers or files, it has no influence on project-current.

[nicolas-graves]

After further research, project-current can't handle this because it calls project--find-in-directory which then calls project-try-vc through project-find-functions.
project-try-vc has an unclear FIXME that seems to be what is missing to make that work.

[nicolas-graves]

The FIXME is not enough, it seems that even when clearing the cache, the following code is setting the cache back to the parent, it seems written this way :

        (when (and
               (eq backend 'Git)
               (project--vc-merge-submodules-p root)
               (project--submodule-p root))
          (let* ((parent (file-name-directory (directory-file-name root))))
            (setq root (vc-call-backend 'Git 'root parent))))

[minad]

Any updates on this? Can project.el be fixed accordingly?