Infrastructure/VersionControl

Version Control

Who's working on this

• ToshioKuratomi abadger1999 toshio@fedoraproject.org Bazaar; possibly Mercurial
• Paulo Santos paulobanon
• John Kraal geonetix
• WarrenTogami warren
• Mike Mcgrath mmcgrath Subversion
• JesseKeating f13 Mercurial
• Kristian Hoegsberg (git)
• JeffOllie (git)

Current System

Rough guide to how the current system works

Requirements

• Unix accounts or certificate based authentication
• Access Control Lists of per-package per-branch granularity
• Ideally this means per-directory ACL's
• ACLs will allow view and commit access to select contributors.
• Embargo branches should be on the same server as the normal branches. This is necessary to allow certain upstream developers to work in cooperation with Fedora maintainers.
• We need to scale up to hundreds of branches per package in the long run.
• Some package/branches would be read-only to most users.
• Other package/branches need to be completely hidden from most users.
• E-mail notification when changes occur. These notifications must be sent from the server, and it must be not possible for users to bypass.
• Distributed SCM allows easy sub-collections of the distribution to be built and tested independently, then the bulk be easily merged back while minimizing effort.
• Translations for core packages are right now implemented via cvs.fedora.redhat.com and tied to CVS. More longterm they might also benefit from a more modern version control system.

Highly Desirable Abilities:

• Ability to check out only a portion of the tree in order to work on only a package, instead of the entire tree.

3rd party Resources and Opinions

• [1] http://better-scm.berlios.de/comparison/comparison.html

Version Control System Comparison - covers just about everything except git and bzr now covers everything

• [2] http://zooko.com/revision_control_quick_ref.html

Quick Reference Guide to Free Software Decentralized Revision Control Systems

• [3] http://mail.opensolaris.org/pipermail/tools-discuss/2006-April/000366.html

OpenSolaris comparison of Git, Mercurial and Bazaar-NG (at version 0.7)

• [4] http://bazaar-vcs.org/Performance/0.9

Supplements the previous, well documented comparison with Performance enhancements from bzr 0.8 => 0.9.

• [5] https://wiki.ubuntu.com/NoMoreSourcePackages

Something that Ubuntu is thinking about

• [6] http://live.gnome.org/DistributedSCM GNOME comparison
• [7] http://www.freedesktop.org/wiki/Infrastructure/git/UIFlaws

Xorg is maintaining a rough wishlist of what would they like to see changed in git.