OpenBSD Anonymous CVS

Anonymous CVS is a method of keeping your local copy of the OpenBSD source tree up to date with respect to changes made to current OpenBSD sources. In addition to following the bleeding edge of development, it is also possible to track the errata patches of a release.
Anonymous CVS works directly against a central source code repository. This means that you have the full set of CVS commands available to control merging and updating your changes with other source changes, performing diffs, change histories and other queries against the central repository. In the event that the changes can't be completely merged, CVS provides annotated changes to your local copy and preserves an unmodified copy of your version.
The OpenBSD Project currently has four active source repositories:
CVS is the source code control system used to manage the OpenBSD source tree. It implements a central repository for all officially released source code and changes, while permitting developers to maintain local copies of the source code with their working changes.
There are two levels of source tree access:
While you can download the entire source tree from an AnonCVS server, you can save time and bandwidth by pre-loading your tree with the source tarballs. This is particularly true if you are running -stable, as relatively few files change between the release and -stable.
The source files for download from the mirrors are separated into two files to reduce the download time for those wishing to work with only one part of the tree. The kernel sources are in sys.tar.gz and the userland sources are in src.tar.gz.
The following commands assume you have followed these instructions to give a non-root user write access to the src, ports and xenocara directories.
cvs(1) was designed to be a simple way to retrieve and update your sources. You must first decide whether you want to track -current or a -stable branch. The current tree has all of the up to the minute changes, whereas the -stable branch contains the sources for the release plus the patches from the errata and lesser issues already applied. For more information on the flavors of OpenBSD, see here.
Choose the Anonymous CVS server you are going to use from the list of servers below, then you can start using cvs. If you begin with src.tar.gz and sys.tar.gz as mentioned above, you can skip the initial checkout and proceed to changing the server and updating.
Warning: When using cvs, you should take care that your current directory is either the root of the tree you are referencing or in a separate place such as /tmp. Some commands, such as cvs checkout, can create an arbitrary sub-tree in the current directory, and a subsequent update will recursively flesh out this sub-tree.
The following commands assume that your user is member of the wsrc group; replace anoncvs.example.org with a mirror from the list below.
If you are following -current:
If you are following the 8.0 -stable branch:
Anonymous CVS uses passwordless SSH as a transport. If this is the first time you have connected to a server, you will be asked to confirm the SSH fingerprint to ensure that you are connecting to the expected server:
In most cases, the list below includes the fingerprints for the server, so you can compare it against the displayed fingerprint as additional verification that you are connecting to the correct server. Confirm this, and the fingerprint will then be saved as usual.
If you are following -current:
If you are following the 8.0 -stable branch:
Every time you run this, cvs(1) synchronizes your /usr/src tree. It does not destroy any of your local changes; rather it attempts to merge changes in.
If you are updating a source tree that you initially fetched from a different server, or from a tar file, you must add the -d [cvsroot] option to cvs.
Make sure your user is member of the wsrc group and that /usr/ports is group writable by wsrc. Replace ports with xenocara throughout to get or update a xenocara tree.
If you are following -current:
If you are following the 8.0 -stable branch:
If you are following -current:
If you are following the 8.0 -stable branch:
To make a diff of a locally patched module (here cd.c) to include with a bug report:
As noted in the list below, some repository mirrors also allow fetching the entire repository via rsync. Please use the reposync wrapper script which checks for updates to CVSROOT/ChangeLog and avoids a full directory scan in some cases where no update was detected. It also handles SSH port forwarding for mirrors where this is available, allowing to connect to an "rsync --daemon" server over an authenticated and encrypted channel.
Install reposync from packages, create a user and directory to hold the repository, and a directory for reposync's own use:
Now the following command might be used to mirror or update the repository. If your chosen mirror does not support SSH port-forwarding, either switch to a better mirror, or change to "reposync -p".
After mirroring, you can use the local directory as your cvsroot, for example:
The overall repository size currently increases at a rate of about 530MB per annum. The src repository increases by about 220MB.
If your server is listed on here with inaccurate or unknown information, please contact beck@openbsd.org.
You may want to use traceroute(8) to find out which server is nearest you. Problems with a server should be reported to the maintainer of the server in question.
If local policy prevents outgoing connections to ssh's default port of 22, some servers permit connections on an alternative port (typically 2022). These are noted in the list above. To use a different port, reconfigure your ssh client by adding a Host entry to $HOME/.ssh/config, e.g.:
AnonCVS mirrors currently require about 9GB of disk (and it will grow!), and use up to 64MB of swap per anoncvs user (assuming the user does a large operation; while smaller operations use fewer resources, AnonCVS still makes much more of an impact than f