Re: [gentoo-dev] format of files in /var/cache/edb/dep

[Andrew Gaffney <agaffney@skylineaero.com>]

Mike Frysinger wrote:
> On Thursday 13 May 2004 10:19 pm, Andrew Gaffney wrote:
> 
>>Are you serious? Why would the format of important files used by Portage
>>change?
> 
> 
> because the current system sucks horribly
> 
> ever wonder why portage can be so goddamn slow ? ;)

I was testing it earlier again my Perl dependency checker that I'm working on. 
After deleting the contents of /var/cache/edb/dep, Portage took 42s to do 
'emerge -ep xfree'. It then took 2.819s to run the same command again with the 
cache rebuilt. My program took 0.981s to do the same thing while generating 
dependency information directly from the ebuilds on the fly. Although, my 
dependency checker isn't yet as complete as Portage's.

For example, if one package has a dependency of '>=package2-2.0' and another has 
'<package2-2.3' and the newest version of package2 is 2.6, my program will 
choose to install package2-2.6.

It can currently handle USE flags, auto-USE flags, (un)masked packages, and 
virtuals (somewhat). It also saves time by not involving bash in the dependency 
process at all. Instead, it parses all the variable declarations straight out of 
the ebuild and does bash-style interpolation within the program.

-- 
Andrew Gaffney
Network Administrator
Skyline Aeronautics, LLC.
636-357-1548


--
gentoo-dev@gentoo.org mailing list