Mailinglist Archive: zypp-devel (53 mails)

[Michael Schroeder <mls@xxxxxxx>]

On Thu, Jun 25, 2009 at 12:42:11PM +0200, Ralf Becker wrote:
> I'm building rpm packages for EGroupware (www.egroupware.org).
> They have a "metapackage" requiring the default modules and then
> executing a post_install script (create database, install EGroupware and
> all modules via a comand line client). All modules depend of a core
> module, which is also required by the metapackage and which includes the
> post-install script itself. (That way you can use the metapackage for
> convenience, but you can also install the single packages, if you want to).
>
> What I expect would be the following behaviour:
>
> 1. Install required packages (including required core package)
> 2. Install metapackage
> 3. Execute post install of metapackage
>
> (That's eg. the behaviour of yum or aptitude).

Looking at the solver testcase I see some cycles:

cycle: ----> egroupware-epl-9.1.20090618-41.1.noarch
       ----> egroupware-epl-registration-9.1.20090618-41.1.noarch
       ####> egroupware-epl-core-9.1.20090618-41.1.noarch
       ----> 

cycle: ----> egroupware-epl-9.1.20090618-41.1.noarch
       ----> egroupware-epl-calendar-9.1.20090618-41.1.noarch
       ####> egroupware-epl-core-9.1.20090618-41.1.noarch
       ----> 

cycle: ----> egroupware-epl-9.1.20090618-41.1.noarch
       ----> egroupware-epl-manual-9.1.20090618-41.1.noarch
       ####> egroupware-epl-wiki-9.1.20090618-41.1.noarch
       ----> egroupware-epl-core-9.1.20090618-41.1.noarch
       ----> 

cycle: ----> egroupware-epl-9.1.20090618-41.1.noarch
       ----> egroupware-epl-manual-9.1.20090618-41.1.noarch
       ####> egroupware-epl-core-9.1.20090618-41.1.noarch
       ---->

cycle: ----> egroupware-epl-9.1.20090618-41.1.noarch
       ----> egroupware-epl-bookmarks-9.1.20090618-41.1.noarch
       ####> egroupware-epl-core-9.1.20090618-41.1.noarch
       ---->
 
cycle: ----> egroupware-epl-9.1.20090618-41.1.noarch
       ----> egroupware-epl-tracker-9.1.20090618-41.1.noarch
       ####> egroupware-epl-core-9.1.20090618-41.1.noarch
       ----> 

CYCLE: ----> egroupware-epl-9.1.20090618-41.1.noarch
       ====> egroupware-epl-core-9.1.20090618-41.1.noarch
       ####> 

----> normal dependency
====> prereq dependency
####> broken dependency

This was generated with the new transaction ordering code from
the libsatsolver library. In 11.1, libzypp does the ordering.

The zypper log contains:

dependency loop: egroupware-epl -> egroupware-epl-core
dependency loop: apache2-prefork -> apache2
dependency loop: egroupware-epl-egw-pear -> egroupware-epl-core
dependency loop: egroupware-epl-wiki -> egroupware-epl-core
dependency loop: egroupware-epl-emailadmin -> egroupware-epl-core
dependency loop: egroupware-epl-sitemgr -> egroupware-epl-core
dependency loop: egroupware-epl-filemanager -> egroupware-epl-core
dependency loop: egroupware-epl-infolog -> egroupware-epl-core
dependency loop: egroupware-epl-projectmanager -> egroupware-epl-core
dependency loop: egroupware-epl-importexport -> egroupware-epl-core
dependency loop: egroupware-epl-news_admin -> egroupware-epl-core
dependency loop: egroupware-epl-stylite -> egroupware-epl-core
dependency loop: egroupware-epl-notifications -> egroupware-epl-core
dependency loop: egroupware-epl-phpsysinfo -> egroupware-epl-core
dependency loop: egroupware-epl-developer_tools -> egroupware-epl-core
dependency loop: egroupware-epl-felamimail -> egroupware-epl-core
dependency loop: egroupware-epl-sambaadmin -> egroupware-epl-core
dependency loop: egroupware-epl-phpbrain -> egroupware-epl-core
dependency loop: egroupware-epl-syncml -> egroupware-epl-core
dependency loop: egroupware-epl-timesheet -> egroupware-epl-core
dependency loop: egroupware-epl-resources -> egroupware-epl-core
dependency loop: egroupware-epl -> egroupware-epl-polls
dependency loop: egroupware-epl-tracker -> egroupware-epl-core
dependency loop: egroupware-epl-bookmarks -> egroupware-epl-core
dependency loop: egroupware-epl-manual -> egroupware-epl-core
dependency loop: egroupware-epl-calendar -> egroupware-epl-core
dependency loop: egroupware-epl-registration -> egroupware-epl-core

So it also sees the cycles. I'm not sure if it is clever enough
to not break PreReqs if the cycle can be broken with normal
Requires, though. I may be that it treats PreReqs like Reqs, which
would be a bug.

(Actually it's a packaging error from your side: A cycle containing
a PreReq dependency is not installable.
    egroupware-epl PreReq: egroupware-epl-core
means that egroupware-epl-core must be when egroupware-epl
gets installed. Working means that all dependencies are fulfilled,
but egroupware-epl-core requires egroupware-epl.)

Nevertheless, it shouldn't break PreReq deps. The new libsatsolver
code will not do this, it has computed the following order:

  install   egroupware-epl-registration-9.1.20090618-41.1.noarch
  install   egroupware-epl-calendar-9.1.20090618-41.1.noarch
  install   egroupware-epl-manual-9.1.20090618-41.1.noarch
  install   egroupware-epl-bookmarks-9.1.20090618-41.1.noarch
  install   egroupware-epl-tracker-9.1.20090618-41.1.noarch
  install   egroupware-epl-core-9.1.20090618-41.1.noarch
  install   egroupware-epl-polls-9.1.20090618-41.1.noarch
  install   egroupware-epl-projectmanager-9.1.20090618-41.1.noarch
  install   egroupware-epl-wiki-9.1.20090618-41.1.noarch
  install   egroupware-epl-stylite-9.1.20090618-41.1.noarch
  install   egroupware-epl-developer_tools-9.1.20090618-41.1.noarch
  install   egroupware-epl-sambaadmin-9.1.20090618-41.1.noarch
  install   egroupware-epl-infolog-9.1.20090618-41.1.noarch
  install   egroupware-epl-resources-9.1.20090618-41.1.noarch
  install   egroupware-epl-news_admin-9.1.20090618-41.1.noarch
  install   egroupware-epl-timesheet-9.1.20090618-41.1.noarch
  install   egroupware-epl-phpsysinfo-9.1.20090618-41.1.noarch
  install   egroupware-epl-notifications-9.1.20090618-41.1.noarch
  install   egroupware-epl-egw-pear-9.1.20090618-41.1.noarch
  install   egroupware-epl-phpbrain-9.1.20090618-41.1.noarch
  install   egroupware-epl-sitemgr-9.1.20090618-41.1.noarch
  install   egroupware-epl-importexport-9.1.20090618-41.1.noarch
  install   egroupware-epl-filemanager-9.1.20090618-41.1.noarch
  install   egroupware-epl-syncml-9.1.20090618-41.1.noarch
  install   egroupware-epl-emailadmin-9.1.20090618-41.1.noarch
  install   egroupware-epl-felamimail-9.1.20090618-41.1.noarch
  install   egroupware-epl-9.1.20090618-41.1.noarch

Michael Andres, any comments about the libzypp behaviour?

Cheers,
  Michael.

-- 
Michael Schroeder                                   mls@xxxxxxx
SUSE LINUX Products GmbH, GF Markus Rex, HRB 16746 AG Nuernberg
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