[llvm-dev] GitHub anyone?
Josh Klontz via llvm-dev
llvm-dev at lists.llvm.org
Wed Jun 1 18:53:01 PDT 2016
(As a downstream user and very infrequent committer) +1 for a move to
GitHub. I'm indifferent about git, but pull requests significantly reduce
the effort of contributing small patches. I've found I'm much more likely
to submit a patch to a project if it is on GitHub.
On Tue, May 31, 2016 at 1:31 PM, Renato Golin via llvm-dev <
llvm-dev at lists.llvm.org> wrote:
> There has been some discussion on IRC about SVN hosting and the perils
> of doing it ourselves. The consensus on the current discussion was
> that moving to a Git-only solution would have some disvantages, but
> many advantages. Furthermore, not hosting our own repos would save us
> a lot of headaches, admin costs and timed out connections.
> TL;DR: GitHub + git submodules  could replace all the functionality
> we have currently with SVN.
> (also GitLab, BitBucketc, etc).
> Here are some of the arguments made on IRC...
> 1. Due to SVN, we can't re-write history. If we use some GitHub
> properties , we could have the same effect.
> 2. Due to SVN, we have a mandatory time sequence, so commits go first
> in LLVM, then Clang (for example), and buildbots don't get lost. If we
> use submodules , we can have a similar relationship, but in a more
> explicit way, and the problem could be solved elegantly.
> 3. Some people still can only use SVN. For that, GitHub has an SVN
> interface  to the repositories.
> 4. We currently host our own SVN/Git, ViewVC and Klaus, Phabricator,
> etc. Not only this incurs in additional admin cost, but it also gets
> outdated, locally modified, and it needs to be backed up, etc. GitHub
> gives all that for us for free.
> 5. We can still use Bugzilla (and lock GitHub's own bug system), but
> we can also use GitHub's system to manage releases (it's actually
> quite good for that).
> 6. GitHub has automated testing of merge requests, meaning we can have
> pre-commit tests enabled on a set of fast bots, triggered by GitHub's
> own validation hooks. Even though that wouldn't cover everything,
> having a few pre-commit bots would considerably reduce the need to
> revert patches .
> 7. With git submodules, we'd probably want to follow the same style we
> have today (llvm-projects/<prj>) instead of modelling how they look in
> tree (llvm/tools/clang still as a symlink).
> 8. Once we're solo Git, we can shop around *much* more easily. By
> using SVN, we're basically forced to host, or choose Source Forge.
> Using just Git, we can choose GitLab, BitBucket and many others, if
> GitHub is not appealing enough. Essentially, it doesn't matter where
> you are, the tools are good, there and largely replaceable [citation
> What do people think? Any issue not covered that we should? How would
> that disrupt downstream users? Would it be a temporary disruption, but
> with long lasting benefits? Or will it just break everything for you?
>  https://git-scm.com/book/en/v2/Git-Tools-Submodules
>  https://help.github.com/articles/support-for-subversion-clients/
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
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