bug#50297: 28.0.50; Aggregate project functions for project.el

[Dmitry Gutov]

On 31.08.2021 15:47, Philip Kaludercic wrote:
> The following patch introduces a few functions for aggregate project
> maintenance:
>
> - project-find-projects-under
>    Select a directory with projects to index all at once.
> - project-remove-zombie-projects
>    Check if all known projects still exist and remove those
>    that don't anymore
> - project-remove-projects-under
>    Remove all projects in a directory (inverse of
>    project-find-projects-under).
>
> Especially the last two are useful to maintain a clean project list
> without having to manually remove every project one by one.

OK, so I have done the rename: we now have project-forget-project.

While I'm not necessarily a fan of the tabulated list approach, the 
above list looks sensible. Let's just name them to fit the current 
scheme better:

  project-remember-projects-under
  project-forget-projects-under
  project-forget-zombie-projects

And whatever ambiguities about recursive search can be solved through 
better descriptions in docstrings.

We could also add a hook like project-after-read-list-hook, which people 
would be able to use for cleanup, e.g. adding 
project-forget-zombie-projects to it. Not sure whether to add it there 
by default, though.