Create a repository with different checksum types in repomd.xml and primary.xml

[daviddavis]

There's a bug we're going to need to test where the repository has a different checksum type in the primary.xml file vs the repomd.xml file. The problem is that createrepo command only lets you specify a single checksum type to use.

I think these steps might work:

1. Generate your rpm repository normally with createrepo . and hold onto the primary.xml.gz file
2. Now remove the other repodata files and regenerate the repo metadata files with createrepo -s sha1 ..
3. Substitute in the sha256 primary.xml.gz file for the sha1 one. Update repomd.xml to point to the new primary.xml.gz file and update the checksum as well.