[gentoo-dev] Re: Re: KDE, metapackages, and monolithic packages

[Duncan <1i5t5.duncan@cox.net>]

Mike Myers posted <44023455.3040906@gmail.com>, excerpted below,  on Sun,
26 Feb 2006 17:05:57 -0600:

> Do you know if there's a way or going to be a way to handle the split 
> ebuilds so that reemerging or unemerging a split ebuild will reemerge or 
> unemerge the corresponding packages?  It seems like the ebuilds are only 
> intended to make installing kde easier, which they do, but it doesn't 
> make handle uninstalling or reinstalling a split ebuild very easy at 
> all.

As others have said it's a technical/portage issue.

Unmerging a package always leaves dependencies  behind.  To clean those
up, emerge -NuD world (to ensure use dependencies are uptodate), emerge -p
depclean (to get a list of what it thinks is unneeded), fix anything on
that list you know to be needed (add it to world), then either unmerge
individually (as I do, even then, ensuring I haven't missed adding
something to world that I should have, verifying what each package does
and thinking about whether I actually do need it as I go) or if you
prefer, use the depclean without the -p, then, finally, do a
revdep-rebuild (first -p it, of course) to catch any dependencies that
still might have  slipped thru and need rebuilt.

Upgrading is a bit more sensitive.  However, with things like KDE
upgrades, I'll often use the --prune parameter on emerge, combined with -p
first of course.  Then again, I unmerge manually as necessary.  One other
method I've used is to do an equery list of kde packages, then grep it 
for the version I want to unmerge, to get a  list of old packages.  So an
upgrade from 3.4 to 3.5 I'd grep for 3.4.  Finally, when you've unmerged
most old KDE packages, take a look at the old /usr/kde/<ver> dir and see
what's left there, then do equery belongs <file> with what's left, to
figure out the packages they belong to.  Anything left over that doesn't
belong to a package should be deletable, or if you prefer to be safe, move
it to a backup dir for a month or so first, so you can restore it if
necessary.  Again, after unmerging stuff, a revdep-rebuild is recommended.

As others said, please move futher discussion to either user or desktop.
I don't look at user, but I'm a regular over in desktop, where KDE
questions are happily answered, as it's certainly part of desktop.

-- 
Duncan - List replies preferred.   No HTML msgs.
"Every nonfree program has a lord, a master --
and if you use the program, he is your master."  Richard Stallman in
http://www.linuxdevcenter.com/pub/a/linux/2004/12/22/rms_interview.html


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