[Freeipa-devel] import rpm causes failure during IPA caless install

[Lukas Slebodnik]

On (08/01/16 14:14), Jan Cholasta wrote:
>On 8.1.2016 14:09, Martin Basti wrote:
>>
>>
>>On 08.01.2016 14:00, Martin Kosek wrote:
>>>On 01/08/2016 01:45 PM, Martin Basti wrote:
>>>>Hello all,
>>>>
>>>>fix for ticket https://fedorahosted.org/freeipa/ticket/5535
>>>>requires to import rpm module
>>>>
>>>>This import somehow breaks nsslib in IPA
>>>>https://fedorahosted.org/freeipa/ticket/5572
>>>>
>>>>
>>>>We have 2 ways how to fix it:
>>>>
>>>>1) move import rpm to body of methods (attached patch)
>>>>We are not sure how stable is this solution.
>>>>
>>>>2) use solution with rpmdevtools proposed here:
>>>>https://www.redhat.com/archives/freeipa-devel/2016-January/msg00092.html
>>>>This should be rock stable but it needs many dependencies (rpm-python
>>>>too, perl)
>>>>
>>>>The second way looks safer, so I would like to reimplement it, do you
>>>>all agree
>>>>or do you have better idea?
>>>>Feedback welcome, please ASAP.
>>>>
>>>>Martin^2
>>>Since it's Friday, I invested 15 minutes to practice my C skills and
>>>use the
>>>python-cffi library to call rpm rpmvercmp library call directly
>>>(attached):
>>>
>>>$ python rpm.py 4.2.0-15.el7 4.2.0-15.el7_2.3
>>>4.2.0-15.el7 < 4.2.0-15.el7_2.3
>>>
>>>This would not introduce any additional dependency besides rpm-devel,
>>>right? :-)
>
>Not rpm-devel, but rpm-libs (you should dlopen "librpm.so.3").
>
CentOS 7 has librpm.so.3
but fedora 23+ has librpm.so.7

So if it is possible it will be good to avoid using specific vertsion.

LS