Arbitrary Branching The Upstream Pivot Matt Prahl Presented by Software Engineer, Red Hat

Topics 1. What is arbitrary branching? 2. Why was arbitrary branching implemented? 3. What tooling changes took place? 4. How to get an arbitrary branch?

What is an Arbitrary Branch? Branches other than f26, f25, epel7, etc. Usually something that maps to upstream such as a major version number Branches that have their own “service levels”, not tied to the service level of a Fedora release

Current Service Levels https://pdc.fedoraproject.org/rest_api/v1/component-sla-types/

Why “Arbitrary Branching”?

Beneficial To Modularity Modularity is an ongoing initiative to resolve the issue of divergent, occasionally conflicting lifecycles of different components.

Tooling Changes

Architectural Decisions Option One: Modify PkgDB to support “arbitrary branching” Option Two: Join up with the Pagure over dist-git efforts and supplement it with PDC APIs Had to add Arbitrary Branching support while maintaining the old way

Pagure over dist-git

PDC https://pdc.fedoraproject.org/rest_api/v1/component-branches/?global_component=fedrepo-req&name=epel7

Changes This Caused... New tool: fedrepo-req New branches in git require PDC entries Forking and pull requests are allowed ACLs: Repo wide Handled through the UI

Changes This Caused Bugzilla default assignee overrides and monitoring are set in pagure.io/releng/fedora-scm- requests Orphaned packages Retired packages

How Do I Use This?

fedrepo-req Examples How to request a new repo fedrepo-req reponame -t 12345 How to request a standard branch fedrepo-req-branch reponame f26 How to request an arbitrary branch fedrepo-req-branch reponame 2.1 --sl security_fixes:2020-01-01 --sl bug_fixes:2020- 01-01

fedrepo-req-admin

fedrepo-req-admin Demo

Created Project

PDC Entry

Monitoring Entry

Summary Arbitrary branches are branches that have service levels not tied to a Fedora release Arbitrary branches enable Modularity Pagure over dist-git is the new interface to dist-git Packaging requests are done through fedrepo- req

Questions? Contact: mprahl@redhat.com