Everyone can contribute to Guix without having commit access (see Submitting Patches). However, for frequent contributors, having write access to the repository can be convenient. As a rule of thumb, a contributor should have accumulated fifty (50) reviewed commits to be considered as a committer and have sustained their activity in the project for at least 6 months. This ensures enough interactions with the contributor, which is essential for mentoring and assessing whether they are ready to become a committer. Commit access should not be thought of as a “badge of honor” but rather as a responsibility a contributor is willing to take to help the project.
The following sections explain how to get commit access, how to be ready to push commits, and the policies and community expectations for commits pushed upstream.
When you deem it necessary, consider applying for commit access by following these steps:
Committers are expected to have had some interactions with you as a contributor and to be able to judge whether you are sufficiently familiar with the project’s practices. It is not a judgment on the value of your work, so a refusal should rather be interpreted as “let’s try again later”.
Set up GnuPG such that it never uses the SHA1 hash algorithm for digital signatures, which is known to be unsafe since 2019, for instance by adding the following line to ~/.gnupg/gpg.conf (see GPG Esoteric Options in The GNU Privacy Guard Manual):
Important: Before you can push for the first time, maintainers must:
- add your OpenPGP key to the
- add your OpenPGP fingerprint to the .guix-authorizations file of the branch(es) you will commit to.
Note: Maintainers are happy to give commit access to people who have been contributing for some time and have a track record—don’t be shy and don’t underestimate your work!
However, note that the project is working towards a more automated patch review and merging system, which, as a consequence, may lead us to have fewer people with commit access to the main repository. Stay tuned!
All commits that are pushed to the central repository on Savannah must
be signed with an OpenPGP key, and the public key should be uploaded to
your user account on Savannah and to public key servers, such as
keys.openpgp.org. To configure Git to automatically sign
git config commit.gpgsign true # Substitute the fingerprint of your public PGP key. git config user.signingkey CABBA6EA1DC0FF33
To check that commits are signed with correct key, use:
You can prevent yourself from accidentally pushing unsigned or signed with the wrong key commits to Savannah by using the pre-push Git hook located at etc/git/pre-push:
cp etc/git/pre-push .git/hooks/pre-push
It additionally calls
make check-channel-news to be sure
news.scm file is correct.
If you get commit access, please make sure to follow the policy below (discussions of the policy can take place on firstname.lastname@example.org).
Changes should be posted to email@example.com. This mailing
list fills the patch-tracking database (see Tracking Bugs and Patches). It also allows patches to be picked up and tested by the
quality assurance tooling; the result of that testing eventually shows
up on the dashboard at
ISSUE_NUMBER is the number assigned by the issue tracker. Leave
time for a review, without committing anything (see Submitting Patches). If you didn’t receive any reply after one week (two weeks
for more significant changes), and if you’re confident, it’s OK to
As an exception, some changes considered “trivial” or “obvious” may be pushed directly. This includes changes to fix typos and reverting commits that caused immediate problems. This is subject to being adjusted, allowing individuals to commit directly on non-controversial changes on parts they’re familiar with.
When pushing a commit on behalf of somebody else, please add a
Signed-off-by line at the end of the commit log message—e.g.,
git am --signoff. This improves tracking of who did
When adding channel news entries (see Writing Channel News), make sure they are well-formed by running the following command right before pushing:
Peer review (see Submitting Patches) and tools such as
guix lint (see Invoking guix lint) and the test suite
(see Running the Test Suite) should catch issues before they are
pushed. Yet, commits that “break” functionality might occasionally
go through. When that happens, there are two priorities: mitigating
the impact, and understanding what happened to reduce the chance of
similar incidents in the future. The responsibility for both these
things primarily lies with those involved, but like everything this is
a group effort.
Some issues can directly affect all users—for instance because they
guix pull fail or break core functionality, because they
break major packages (at build time or run time), or because they
introduce known security vulnerabilities.
The people involved in authoring, reviewing, and pushing such commit(s) should be at the forefront to mitigate their impact in a timely fashion: by pushing a followup commit to fix it (if possible), or by reverting it to leave time to come up with a proper fix, and by communicating with other developers about the problem.
If these persons are unavailable to address the issue in time, other committers are entitled to revert the commit(s), explaining in the commit log and on the mailing list what the problem was, with the goal of leaving time to the original committer, reviewer(s), and author(s) to propose a way forward.
Once the problem has been dealt with, it is the responsibility of those involved to make sure the situation is understood. If you are working to understand what happened, focus on gathering information and avoid assigning any blame. Do ask those involved to describe what happened, do not ask them to explain the situation—this would implicitly blame them, which is unhelpful. Accountability comes from a consensus about the problem, learning from it and improving processes so that it’s less likely to reoccur.
In order to reduce the possibility of mistakes, committers will have their Savannah account removed from the Guix Savannah project and their key removed from .guix-authorizations after 12 months of inactivity; they can ask to regain commit access by emailing the maintainers, without going through the vouching process.
Maintainers44 may also revoke an individual’s commit rights, as a last resort, if cooperation with the rest of the community has caused too much friction—even within the bounds of the project’s code of conduct (see Contributing). They would only do so after public or private discussion with the individual and a clear notice. Examples of behavior that hinders cooperation and could lead to such a decision include:
When maintainers resort to such a decision, they notify developers on firstname.lastname@example.org; inquiries may be sent to email@example.com. Depending on the situation, the individual may still be welcome to contribute.
One last thing: the project keeps moving forward because committers not only push their own awesome changes, but also offer some of their time reviewing and pushing other people’s changes. As a committer, you’re welcome to use your expertise and commit rights to help other contributors, too!