[llvm-dev] [Openmp-dev] Updates on SVN to GitHub migration

Mon Oct 22 15:47:01 PDT 2018

>  It would be helpful to have instructions about the best way to move
local branches in those repositories to the monorepo and some scripts to
help with the transition.

I put together https://reviews.llvm.org/D53414.

On Mon, Oct 22, 2018 at 8:31 AM David Greene via llvm-dev <
llvm-dev at lists.llvm.org> wrote:

> I had a short side-conversation at one of the roundtables about existing
> users of the subproject repositories.  It would be helpful to have
> instructions about the best way to move local branches in those
> repositories to the monorepo and some scripts to help with the
> transition.  I know someone posted an example project a while ago with
> some scripts but my sense is that those scripts were particular to that
> project and maybe not generally applicable.
>
> Once the monorepo goes live (tomorrow?), what happens to the existing
> subproject mirrors?  Do they get wiped away and replaced with history
> from the monorepo?  Or are entirely new mirrors created?  Or do they
> just continue to mirror SVN until SVN becomes read-only?
>
> The first option would essentially be a rewrite of history for the
> subproject repositories.  We'll need to know if/when that is going to
> happen.
>
>                           -David
>
> Jonas Hahnfeld via Openmp-dev <openmp-dev at lists.llvm.org> writes:
>
> > (+openmp-dev, they should know about this!)
> >
> > Recapping the "Concerns"
> > (https://llvm.org/docs/Proposals/GitHubMove.html#id12) there is a
> > proposal of "single-subproject Git mirrors" for people who are only
> > contributing to standalone subprojects. I think this will be easy in
> > the transition period, we can just continue to move the current
> > official git mirrors. Will this "service" be continued after GitHub
> > becomes the 'one source of truth'? I'd strongly vote for yes, but I'm
> > not sure how that's going to work on a technical level.
> >
> > Thanks,
> > Jonas
> >
> > On 2018-10-20 03:14, Tom Stellard via llvm-dev wrote:
> >> On 10/19/2018 05:47 PM, Tom Stellard via lldb-dev wrote:
> >>> TLDR: Official monorepo repository will be published on
> >>> Tuesday, Oct 23, 2018.  After this date, you should modify
> >>> your workflows to use the monorepo ASAP.  Current workflows
> >>> will be supported for at most 1 more year.
> >>>
> >>> Hi,
> >>>
> >>> We had 2 round-tables this week at the Developer Meeting to
> >>> discuss the SVN to GitHub migration, and I wanted to update
> >>> the rest of the community on what we discussed.
> >>>
> >>> The most important outcome from that meeting is that we
> >>> now have a timeline for completing the transition which looks
> >>> like this:
> >>>
> >>
> >> Step 1:
> >>> Tues Oct 23, 2018:
> >>>
> >>> The latest monorepo prototype[1] will be moved over to the LLVM
> >>> organization github project[2] and will begin mirroring the current
> >>> SVN repository.  Commits will still be made to the SVN repository
> >>> just as they are today.
> >>>
> >>> All community members should begin migrating their workflows that
> >>> rely on SVN or the current git mirrors to use the new monorepo.
> >>>
> >>> For CI jobs or internal mirrors pulling from SVN or
> >>> http://llvm.org/git/*.git you should modify them to pull from
> >>> the new monorepo and also to deal with the new repository
> >>> layout.
> >>>
> >>> For Developers, you should begin using the new monorepo
> >>> for your development and using the provided scripts[3]
> >>> to commit your code.  These scripts will allow to commit
> >>> to SVN from the monorepo without using git-svn
> >>>
> >>>
> >>
> >> Sorry hit send before I was done.  Here is the rest of the mail:
> >>
> >> Step 2:
> >>
> >> Around the time of next year's developer meeting (1 year at the most),
> >> we will turn off commit access to the SVN server and enable commit
> >> access to the monorepo.  At this point the monorepo will become the
> >> 'one source of truth' for the project.  Community members *must* have
> >> updated their workflows by this date and are encouraged to begin
> >> updating workflows ASAP.
> >>
> >> A lot of people asked at the developer meeting about the future
> >> of bugzilla and phabricator and whether or not we will use
> >> github issues and pull requests.  These are important questions,
> >> but are unrelated to the migration of the code.
> >>
> >> We also came up with a TODO list for things we want to accomplish
> >> as a community in the next year and beyond related to github.  I
> >> am working on putting these into bugzilla so we can track progress
> >> better and I will send a follow-up email about this.
> >>
> >> -Tom
> >>
> >>>
> >>>
> >>>
> >>>
> >>> [1] https://github.com/llvm-git-prototype/llvm>> [2]
> https://github.com/llvm/>> [3]
> >>>
> https://llvm.org/docs/GettingStarted.html#for-developers-to-work-with-a-git-monorepo
> >>
> >>>
> >>> _______________________________________________
> >>> lldb-dev mailing list
> >>> lldb-dev at lists.llvm.org
> >>> http://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-dev>>
> >>
> >> _______________________________________________
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> >> llvm-dev at lists.llvm.org
> >>
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