RPM Support

++ This bug was initially created as a clone of Bugzilla Bug #1120215 ++

Description of problem:

Description of problem:
YUM repositories using deltainfo instead of prestodelta don't get their Delta-RPMs synced into the published repo.

Version-Release number of selected component (if applicable):
2.4beta23

How reproducible:
always

Steps to Reproduce:
1. Patch pulp with https://github.com/pulp/pulp_rpm/pull/525 to work around missing name element im collection of SUSE repos.
2. Import and publish attached test repo.
3. Try a zypper update on the client.

Actual results:
Delta RPMs are missing

Expected results:
Delta RPMs are in the published repo

--- Additional comment from mhrivnak@redhat.com at 07/16/2014 16:30:58 ---

Thank you for finding both of these incompatibilities between pulp and SUSE content. We want to support SUSE content, and this will be very helpful in making that happen.

A diligent investigation of the schema for the deltainfo file vs. the prestodelta file will be required before we can implement this. Any additional help with that would be quite welcome.

--- Additional comment from kvedulv@kvedulv.de at 07/16/2014 21:57:35 ---

http://en.opensuse.org/openSUSE:Standards_Rpm_Metadata says:
deltainfo.xml used to support delta rpms. Format is the same as yum-presto
A glance at those deltainfo.xml files is also confirming that, so it shouldn't be hard to fix.

Unfortunately I don't have a clue how to handle that in the importer, as PRESTO_DELTA_FILE_NAME = 'prestodelta.xml.gz' doesn't leave much room for or-clauses. ;)

It would probably make sense to publish the contents of a generated prestodelta.xml also as deltainfo.xml so zypper/yast can consume it.

--- Additional comment from kvedulv@kvedulv.de at 07/18/2014 11:03:45 ---

Workaround at https://github.com/pulp/pulp_rpm/pull/527

--- Additional comment from bcourt@redhat.com at 01/12/2015 17:15:27 ---

Michael Moll, With some browsing & testing I did, it appeared that zypper will read the presto-delta.xml.gz file if it is in the repository. Can you confirm whether or not the file must be named deltainfo if zypper will use a presto-delta file if it is found instead.

There is another patch at https://github.com/pulp/pulp_rpm/pull/629 that will ensure that all the information is synced into a pulp repository. It's just a matter of how it is published. In this case it is vastly simpler if we can always use presto-delta as the name of the output file.

--- Additional comment from kvedulv@kvedulv.de at 01/16/2015 13:58:44 ---

After changing employers, I don't have a pulp instance around to test at the moment, sorry... If your tests are positive with zypper from SLES 11 SP3 (that's the oldest still supported, I think), I'd say just go ahead. If real testing is needed, ping me again and I'll setup something.
Thanks for following up on that!