uids for daemons on a spin

[yersinia]

On Wed, Aug 6, 2008 at 8:28 PM, Enrico Scholz <
enrico.scholz at informatik.tu-chemnitz.de> wrote:

> "Martin Langhoff" <martin.langhoff at gmail.com> writes:
>
> > So I would need to have an "config" package that
> >  - depends on fedora-usermgmt fedora-usermgmt-shadowutils
> >  - is guaranteed to install _before_ any other package that depends on
> > fedora-usermgmt
>
> See
>
>  http://fedoraproject.org/wikiold/PackageUserCreation (old wiki;
>  conversion to new broke some things)
>
>
> https://www.redhat.com/archives/fedora-extras-list/2006-March/msg00793.html
>
>  http://ensc.de/fedora/fedora-usermgmt-my.spec
>
> Latter is a spec file which should be used to create a package for a
> local repository.  Register this repository in your kickstart file, and
> add 'fedora-usermgmt-my' to the %files section.  Due to its shorter
> name it wins against 'fedora-usermgmt-shadow-utils' (which applies the
> non-predictable behaviour by default).


AFICT, this is Untrue, rpm don't do so.

rpm use a topological sorting in install, eg partial ordering based - it
will be non deterministic only with dependency loop. See this example

rpm -Uvvvvvvvh --test
/home/machbuild/rpmbuild/RPMS/verylooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooongrpm-1.0-1.noarch.rpm
/home/machbuild/rpmbuild/RPMS/veryl-1.0-1.noarch.rpm 2>&1 | grep -A 5 -B 5
"tsorting packages"
D: ========== +++ foo-1.0-1 noarch/linux 0x0
D:  Requires: rpmlib(CompressedFileNames) <= 3.0.4-1        YES (cached)
D:  Requires: rpmlib(PayloadFilesHavePrefix) <= 4.0-1       YES (cached)
D: closed   db index       /var/lib/rpm/Depends
D: ========== recording tsort relations
D: ========== tsorting packages (order, #predecessors, #succesors, tree,
depth, breadth)
*D:     0    0    1    0    1    0
+verylooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooongrpm-1.0-1.noarch
D: ========== successors only (12581 bytes)
D:     1    1    0    0    2    0     +veryl-1.0-1.noarch
*
D: installing binary packages
D: mounted filesystems:

rpm -Uvh
/home/machbuild/rpmbuild/RPMS/verylooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooongrpm-1.0-1.noarch.rpm
/home/machbuild/rpmbuild/RPMS/veryl-1.0-1.noarch.rpm 2>&1
Preparing...                ###########################################
[100%]
installing
verylooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooongrpm
   1:veryloooooooooooooooooo########################################### [
50%]
installing veryl
   2:veryl                    ###########################################
[100%]

veyl has : Requires(post): verylooo..grpm

So verylooong will be installed before veryl. OTHO. AFAICT it is possible
anyway to influence
the ordering if some other package increment the incoming edge deps on the
veryl package.

yum, which is based on rpmlib, do the same. Anaconda ordering is/was/can be
different.


Regards
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