On Thu, 2009-09-17 at 14:14 -0400, Seth Vidal wrote: > > On Thu, 17 Sep 2009, David Malcolm wrote: > > > On Thu, 2009-09-17 at 09:57 -0400, Seth Vidal wrote: > >> > >> On Wed, 16 Sep 2009, David Malcolm wrote: > >> > >>> On Wed, 2009-09-16 at 18:45 -0400, Neal Becker wrote: > >>>> Which makes me wonder, how could this conflict have been avoided? Is > >>>> there > >>>> a tool that would check any new package to see if any object* in it would > >>>> conflict with any existing package? If not, sounds like a good thing to > >>>> have. > >>>> > >>>> * Here, object means filesystem object. I'm not sure if there are any > >>>> other > >>>> types of objects to worry about. > >>> Brainstorming: a script that walks the yum repo's filelist.tar.gz, and > >>> figures out a list of filename collisions, filtering by directories in > >>> the default PATH > >>> > >>> > >>> Attached is a first pass at a python script that does this. > >>> > >>> Output from the script when run upon [1] is below. Caveat: the script > >>> probably has bugs. > >>> > >>> Does this look useful? > >> > >> David, > >> Yes it does look useful. > >> > >> I wrote something similar: > >> > >> http://skvidal.fedorapeople.org/misc/potential_conflict.py > >> > >> which is what I believe autoqa is starting from for their file conflict > >> checker. > > Aha! Your approach looks superior, as you're leveraging all that extra > > info from the RPM headers about file hashes etc. Thanks. > > > > maybe a bit more thourough but I wouldn't call it superior - it takes > forever to complete b/c you have to look at all those headers :( > > Magic alternatives welcome.
Well, define "forever"... my script takes about 30 seconds (and ~1GB RAM) on my workstation; if that's a bit improvement over your runtimes, perhaps you could try a hybrid approach of walking the filelist.xml.gz to quickly find possible conflicts, then only opening the rpm headers as needed to reject the false conflicts? Dunno [snip content-addressed storage/hashing ideas] Dave -- fedora-devel-list mailing list fedora-devel-list@redhat.com https://www.redhat.com/mailman/listinfo/fedora-devel-list
