On Wed, 2010-12-08 at 07:57 -0800, Mark Knecht wrote: > On Wed, Dec 8, 2010 at 3:23 AM, Helmut Jarausch > <jarau...@igpm.rwth-aachen.de> wrote: > > Hi, > > > > does anybody know about an easy method to remove all entries from > > /var/lib/portage/world > > which would have been pulled in anyway > > even if they were not contained in world. > > > > My current attempt would be to write a script > > which executes emerge -vpc on each entry in world. > > If it wouldn't be removed it's obsolete in world. > > > > Unfortunately this has to be done in several rounds. > > > > Many thanks for a hint, > > Helmut. > > > > > > In my experience the world file isn't huge - 50-100 lines - but only > if it contains the things that really need to be there. I've simply > commented out specific entries and run emerge -pvDuN @world to > determine if the entry wasn't necessary, and if it wasn't then removed > it. When I've boiled it down to things that need to be there (I.e. - I > can still run emerge -pvDuN @world and there would be no changes) then > I run emerge - p --depclean to look at what can be removed, make sure > it's OK, and then run depclean for real.
I have a script I used to locate "redudancies" in the world file. It requires gentoolkit. It basically looks at packages in world that have reverse dependencies also in world (but only goes one level deep). Just # auditworld < /var/lib/portage/world http://paste.pocoo.org/show/302273/
