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Date:      Wed, 13 Jan 2021 21:07:29 -0700
From:      Alan Somers <asomers@freebsd.org>
To:        Warner Losh <imp@bsdimp.com>
Cc:        freebsd-git@freebsd.org
Subject:   Re: Git status update
Message-ID:  <CAOtMX2jPZiOeRF-chSDc=LXixAe_rb%2B7eXjzmOtgLXwikGueYA@mail.gmail.com>
In-Reply-To: <CANCZdfpNL0CmLuczNZHueKZcbG_tuk56QC-2fj8SpDaQdFbmFA@mail.gmail.com>
References:  <CANCZdfpNL0CmLuczNZHueKZcbG_tuk56QC-2fj8SpDaQdFbmFA@mail.gmail.com>

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On Tue, Jan 5, 2021 at 6:28 PM Warner Losh <imp@bsdimp.com> wrote:

> [ note: bcc'd to developers@FreeBSD.org, followup to git@]
> Greetings!
>
> I thought I'd give a brief update on the git migration, as well as clarify
> a few important points.
>
> Basic status: We've cut over to git. The source of truth is in git now.
> All commits go into git. Minor issues remain.
>
> A number of project processes depended on subversion. Most of these have
> been converted over, and new ones that are discovered are being converted
> when found.
>
> The git2svn replay has been delayed by illness, but should go live in a
> day or two. We will be replaying git commits to stable/11, stable/12 and
> the associated releng branches into that for the life of the branches. We
> will not be replaying into the head branch in subversion due to logistical
> issues.
>
> We've restarted mirroring to github, gitlab and other hosting services
> popular in Asia and Europe. The old mirror is retained on github as
> freebsd-legacy should you need it to migrate to the new mirror. The old
> mirror has stopped being updated.
>
> The git working group is looking at ways to enforce better dates in our
> workflow. Other projects have various processes in place to ensure better
> date sanity. While not strictly required, it can be helpful to have good
> temporal consistency in a way that's not a significant source of friction.
>
> Mark Johnson has a script to streamline phabricator and git integration.
> This allows one to create a review stream from a branch with multiple
> commits, with automated updating of the commit message, reviewed by, and
> updating the review itself after feedback is applied. You can find it at
> https://github.com/markjdb/scripts/blob/master/git-arc. Since this is new
> code, please take extra care in reviewing commits before pushing to help
> guard against bugs. Mark plans to commit the script under src/tools in the
> future.
>
> At this time, $FreeBSD$ tags should not be removed. This causes merge
> conflicts (has already caused them). New code that will never be MFC'd
> needn't have them. We've turned off enforcement that almost all files have
> them. However, since future stable/12 releases will be created from
> subversion, the tags must remain until EOL stable/12. We'll revisit this
> policy in the second half of 2021 after 13.0 and 12.3 are out to see how
> it's working out. But for now resist the urge to purge $FreeBSD$ tags from
> the src repo.
>
> In addition, large scale changes should be minimized for now. The dynamics
> of the git tool are different than the svn tool. There's a number of ways
> that other projects mitigate the hassles of large scale changes which the
> git team is looking into (anybody on git@ can help!). Until we can
> publish a set of recommendations (by the spring 2021), we'd ask that you
> defer sweeping changes that aren't strictly required.
>
> It's looking increasingly unlikely that got or gitup will be ready for
> 13.0 to be included in base. However, support for both as packages will
> likely be integrated into the tree since these tools are a bit different
> from GPL git(1).
>
> Please ensure that your Author Name is the same as your FreeBSD committer
> name. We've noticed a few instances where this wasn't the case so far. We
> want to make sure that anybody doing this is doing so intentionally and not
> accidentally. For the moment, a reminder email will be sent only when it's
> noticed. git log freebsd/main..main
>
> Please be mindful to use a single line summary for commits to make git log
> --oneline more useful. This should be followed by a blank line and then the
> rest of the commit message. Please take a moment to consider what's in this
> line and ask yourself if it's the most important information or not. If
> not, consider including it later in the commit message.
>
> MFCs should continue to be done as before (except using git cherry-pick,
> and maybe a rebase to squash), with one exception. Please consider adding
> (or reusing from the original commit) a single summary line that describes
> the MFC. We know it's on stable/12, so you don't need MFC in this line.
>
> We're writing up documentation on how to easily bring in pull requests
> from github, gitlab, etc. While straight forward, there's a number of
> fiddly details that you need to know and we're collecting all this info in
> one place. This will help land changes, but won't fix the project's
> long-standing 'somebody has to read the submissions' problem. We hope to
> also have some recommendations on that.
>
> Please see https://github.com/bsdimp/freebsd-git-docs for more details.
> Please note: I'm a couple days behind on pull requests.
>
> Warner
>

Is anybody working on https://ci.freebsd.org/ ?  Its stable builders are
working, but the head builders are still stuck on subversion.
-Alan



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