Cleaning Out Ports?

[Loren M. Lang]

On Mon, Jan 31, 2005 at 06:22:58PM -0800, Michael C. Shultz wrote:
> On Monday 31 January 2005 06:16 pm, Matt LaPlante wrote:
> > Well what I'm more concerned with is how would you locate orphaned
> > dependencies after the fact.  For a parallel example, in gentoo you
> > would "emerge --depclean" which searches the tree for any orphaned
> > packages and removes them.  So say I hadn't used the -r flag when
> > removing packages on BSD, how could I find the leftovers later?
> >
> Look at /usr/ports/sysutils/pkg_cutleaves
> 
> here is a excerpt from its man page:
> 
> "pkg_cutleaves  finds  installed 'leaf' packages, i.e. packages that are
>  not referenced by any other installed package, and lets you decide  for
>  each  one  if  you want to keep or deinstall it (via pkg_deinstall(1)).
> Once the packages marked for  removal  have  been  flushed/deinstalled,
>  you'll  be  asked  if  you want to do another run (to see packages that
>  have become 'leaves' now because you've deinstalled the package(s) that
>  depended  on  them).  In every run you will be shown only packages that
>  you haven't marked for keeping, yet."

There's still one missing part to it that gentoo's portage has.  In
addition to the standard database of installed packages, emerge keeps track
of every single package that you explicitly installed in a file called
world.  Upgrades read this file and update all the packages listed,
including there dependencies first.  Now if a package that was installed
to satisfy a dependency, but not explicitly installed is now longer
needed, it will stay on the system until the next time emerge --depclean
is run.  --depclean tells emerge to remove any packages that are not in
the world file and are not needed to satify dependencies for packages in
the world file, either directly or indirectly.  I think this is the
behavior that the original poster was asking for.  AFAIK, this is not
yet possible in FreeBSD, but it should be a trivial matter to add
something like a world file to portupgrade.  Maybe, if I have time this
week I could work on a patch...

> 
> > --
> > Matt LaPlante
> > System Administrator
> > Center for Automation Technologies
> > RPI/CAT, CII 8015
> > 110 8th Street
> > Troy, NY 12180
> > Phone: (518) 276-2275
> > laplante at cat.rpi.edu
> > www.cat.rpi.edu
> >
> > > -----Original Message-----
> > > From: Pat Maddox [mailto:pergesu at gmail.com]
> > > Sent: Monday, January 31, 2005 8:55 PM
> > > To: Matt LaPlante
> > > Cc: freebsd-questions at freebsd.org
> > > Subject: Re: Cleaning Out Ports?
> > >
> > > If you try to remove a package that has child dependencies, then
> > > it'll let you know.  You'll have to use the -f flag to force it to
> > > delete the package, despite there being any dependencies.  If you
> > > want to delete a package along with all its dependencies, you can
> > > use the -r flag.
> > >
> > > Use pkgdb -F to fix any dependencies that might be broken.
> > >
> > > I think that's about right.  I'm a FreeBSD newbie :)
> >
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