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committer-responsibilities.rst

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Expectations for Developers with Open vSwitch Repo Access

Pre-requisites

Be familiar with the guidelines and standards defined in :doc:`contributing/index`.

Review

Code (yours or others') must be reviewed publicly (by you or others) before you push it to the repository. With one exception (see below), every change needs at least one review.

If one or more people know an area of code particularly well, code that affects that area should ordinarily get a review from one of them.

The riskier, more subtle, or more complicated the change, the more careful the review required. When a change needs careful review, use good judgment regarding the quality of reviews. If a change adds 1000 lines of new code, and a review posted 5 minutes later says just "Looks good," then this is probably not a quality review.

(The size of a change is correlated with the amount of care needed in review, but it is not strictly tied to it. A search and replace across many files may not need much review, but one-line optimization changes can have widespread implications.)

Your own small changes to fix a recently broken build ("make") or tests ("make check"), that you believe to be visible to a large number of developers, may be checked in without review. If you are not sure, ask for review. If you do push a build fix without review, send the patch to ovs-dev afterward as usual, indicating in the email that you have already pushed it.

Regularly review submitted code in areas where you have expertise. Consider reviewing other code as well.

Git conventions

Do not push merge commits to the Git repository without prior discussion on ovs-dev.

If you apply a change (yours or another's) then it is your responsibility to handle any resulting problems, especially broken builds and other regressions. If it is someone else's change, then you can ask the original submitter to address it. Regardless, you need to ensure that the problem is fixed in a timely way. The definition of "timely" depends on the severity of the problem.

If a bug is present on main and other branches, fix it on main first, then backport the fix to other branches. Straightforward backports do not require additional review (beyond that for the fix on main).

Feature development should be done only on main. Occasionally it makes sense to add a feature to the most recent release branch, before the first actual release of that branch. These should be handled in the same way as bug fixes, that is, first implemented on main and then backported.

Keep the authorship of a commit clear by maintaining a correct list of "Signed-off-by:"s. If a confusing situation comes up, as it occasionally does, bring it up on the mailing list. If you explain the use of "Signed-off-by:" to a new developer, explain not just how but why, since the intended meaning of "Signed-off-by:" is more important than the syntax. As part of your explanation, quote or provide a URL to the Developer's Certificate of Origin in :doc:`contributing/submitting-patches`.

Use Reported-by: and Tested-by: tags in commit messages to indicate the source of a bug report.

Keep the AUTHORS.rst file up to date.

Pre-Push Hook

The following script can be helpful because it provides an extra chance to check for mistakes while pushing to the main branch of OVS or OVN. If you would like to use it, install it as hooks/pre-push in your .git directory and make sure to mark it as executable with chmod +x. For maximum utility, make sure checkpatch.py is in $PATH:

#! /bin/bash

remote=$1

case $remote in
    ovs|ovn|origin) ;;
    *) exit 0 ;;
esac

while read local_ref local_sha1 remote_ref remote_sha1; do
    case $remote_ref in
        refs/heads/main)
            n=0
            while read sha
            do
                n=$(expr $n + 1)
                git log -1 $sha
                echo
                checkpatch.py -1 $sha
            done <<EOF
$(git --no-pager log --pretty=%H $local_sha1...$remote_sha1)
EOF

            b=${remote_ref#refs/heads/}
            echo "You're about to push $n commits to protected branch $b on $remote."

            read -p "Do you want to proceed? [y|n] " reply < /dev/tty
            if echo $reply | grep -E '^[Yy]$' > /dev/null; then
                :
            else
                exit 1
            fi
            ;;
    esac
done

exit 0