[lldb-dev] [llvm-dev] [cfe-dev] GitHub anyone?

Matthias Braun via lldb-dev lldb-dev at lists.llvm.org
Tue May 31 13:45:30 PDT 2016

> On May 31, 2016, at 1:42 PM, Matthias Braun <mbraun at apple.com> wrote:
>> On May 31, 2016, at 1:31 PM, Joerg Sonnenberger via llvm-dev <llvm-dev at lists.llvm.org> wrote:
>> On Tue, May 31, 2016 at 04:24:08PM -0400, Aaron Ballman via cfe-dev wrote:
>>> On Tue, May 31, 2016 at 3:31 PM, Renato Golin via cfe-dev
>>> <cfe-dev at lists.llvm.org> wrote:
>>>> Folks,
>>>> 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.
>>> Not everyone thinks git is a step forward. Please do not force people
>>> to use a "git-only" solution.
>> Amen.
>>>> 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 [1], we can have a similar relationship, but in a more
>>>> explicit way, and the problem could be solved elegantly.
>>> I actually consider the monotonically increasing revisions to be a
>>> feature, but not sufficient to warrant a decision one way or the
>>> other.
>> Has the situation with git-submodules and bisect improved at all or is
>> bisecting clang+llvm going to be manual mess?
> I found bisecting with submodules (in another project) far superior to the manual mess I have to do in clang+llvm today.
To be more exact here: I usually do not checkout llvm svn at a higher level because that forces me back to svn (which last time I used it did not have built-in support for bisection, not sure if that changed recently). So while I have a consistent state in svn I spend the time manually calculating the next commit to checkout. So what I do instead is using git for bisecting and having some (brittle) scripts that sync multiple git repositories to use a commit from the same time!

- Matthias

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