[gentoo-dev] RFC: Moving gnome2_icon_cache_update functionality to xdg-utils.eclass

[Mart Raudsepp]

Hello,

Before writing the obvious patches, would anyone terribly object to
moving gnome2_icon_cache_update into xdg-utils.eclass instead and
hooking it up via savelist guard in xdg.eclass (only running in
postinst/postrm when really needed)?

The gtk icon cache format isn't used by gtk+ only - it's used by Qt as
well these days; and either way if anything installs things per the
icon specs, the caches should be updated for gtk/qt to see it (even if
the program itself is written in motif or something).

Open dilemmas:

* To DEPEND on gtk-update-icon-cache, or to rely on the toolkits to
pull it in and only run the updates if the helper is present. We have
it split out from gtk+ codebase, so it only has glib/gdk-pixbuf deps
right now.

* If it's worth trying to avoid double calls in postint and postrm for
ebuilds that inherit xdg and call gnome2_icon_cache_update manually
right now on top (due to xdg.eclass not doing it for them).


If these changes are agreeable, then they could also be batched into a
single push with the documentation update patches pending from mgorny
for a single metadata cache invalidation of gnome2-utils.eclass using
ebuilds.

If this looks good, I can write patches soon, though there's always
other things to do too (like work on integrating a gnome-meson.eclass
or meson-desktop.eclass on top of this), so help with patches welcome
as well.


Mart