depsolve usecases

The following are usecases our users want, based on direct conversations w/ actual users and TAMs.

Cases

"I want a RHEL8.1 version of the RHEL8 repo"

• how?
  • "rhel8 RPMs with no errata attached (rhel8-release), plus RPMs mentioned in errata as of (rhel8-release-date)"
• depsolve-yes, why?
  • "rpms w/out errata" sometimes results in non-release-day RPMs, which can't be installed w/out their dependencies
• depsolve-no, why?
  • "all rpms from date-0 to date-N" should be as complete as the repo was on date-N
  • depsolve is only needed in cases where we're pulling in RPMs the user doesn't want anyway
• questions

"I want RHEL8.1 plus security-errata (only) as of (date)"

• how?
  • start with the above for RHEL8.1
  • find all security-errata post-RHEL8.1
  • add all the RPMs mentioned therein
• depsolve-yes, why?
  • later security-errata may (often do) depend on later RPMs, and won't install w/out dependencies
• questions

I want RHEL8.1 plus these specific NEVRAs from Later"

• how?
  • RHEL8.1 from above
  • add specific RPMs
• depsolve-yes, why?
  • see "plus security errata" - the later RPMs may not be installable w/out unmentioned dependencies
• depsolve-no, why?
  • potentially may bring in many new RPMs unexpectedly
• questions

"I want RHEL8.1, but NOT THESE RPMs"

• how?
  • start with the above for RHEL8.1
  • remove the specified RPMs
• depsolve-no, why?
  • removing RPMs may make repoclosure impossible - and that must be, by definition, "OK" for this use-case
• questions