bug#62720: 29.0.60; Not easy at all to upgrade :core packages like Eglot

[João Távora]

On Wed, Apr 12, 2023 at 4:58 PM Eli Zaretskii <eliz@gnu.org> wrote:

> > >> Had another idea: what about this very tiny patch, then?  It makes `M-x
> > >> package-install` work for installing a :core package.  This also rhymes
> > >> exactly with Stefan's intution/feeling that :core packages need to be
> > >> "installed" to promote them to installable.  The current M-x
> > >> package-install recommendation could remain flawlessly and then you can
> > >> do whatever you think is best for M-x package-update & friends.
> > > This has the same problem: it modifies a function that is called in
> > > too many places.  package-installed-p has half a dozen callers in
> > > package.el alone.  The change is tiny, but what about its
> > > implications on every use case where it is involved?
> >
> > What if we only fix 'package-upgrade' (nee package-update) in emacs-29?
>
> I believe that's what João was proposing.

AFAICT, Dmitry was asking only for package-update, not
package-update-all.  Stefan was also inclined for that.

In my changes, I changed both.  But it is not hard for me to touch
only package-update and to do it with the utmost care for
separation and stability.

For the moment, I'm focusing on M-x package-install, like Philip is.
There seems to be more consensus there that it should offer to update
builtin packages that have never been updated.

I do believe there is high demand for a "upgrade/update" mechanism
that just "updates whatever there is to update, don't care if core
or whatnot" and people looking at package-update-all and
package-menu--mark-upgrades (the "U" command Dmitry brought up)
will eventually be disappointed.

João