On Thu, 27 Feb 2003, Benoit des Ligneris wrote:
> Another solution is automatic dependency checking. It can be complicated
> and even not-functionnal because some RPMs packages provided by the
> distro are broken. Anyway, I really believe that using an existing tool
> (urpmi/autoupdate) can solve 99.9% of the problems...
I am a firm believer in using this auto-dependency checking stuff. urpmi
and autoupdate are two obvious choices for this. I strongly feel that:
- OSCAR packages should only have to list their own RPMs
- package RPMs should use the normal RPM dependency mechanisms to require
other RPMs that they depend on
For example, the C3 RPM depends on python2. The C3 config.xml should
*not* need to list python2 as a required RPM -- it's already specified in
the C3 RPM spec (i.e., listing the same dependency twice is Bad, IMHO).
So the C3 config.xml should just list the C3 RPM(s), and OSCAR should use
autoupdate/urpmi/whatever to figure out that C3 also needs the python2
RPM.
If I recall what Jason sent to the list a few months ago, if you feed a
list of RPMs to autoupdate, it can spit back an augmented list to you that
has all dependencies resolved (it is not necessary to invoke this multiple
times -- autoupdate does the whole recursive search to give you a fully
resolved list back).
Autoupdate/urpmi/etc. have solved this whole dependency analysis problem
for us, and we should use them. Using these tools is easy; its use
provides great functionality for both OSCAR users and package authors.
Note that I am *not* talking about OSCAR packages depending on other OSCAR
packages -- I'm talking about RPMs in OSCAR packages depending on RPMs
that are not in other OSCAR packages (e.g., C3 and python2).
--
{+} Jeff Squyres
{+} [EMAIL PROTECTED]
{+} http://www.lam-mpi.org/
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