llvm dev - Jun 2016 - [cfe-dev] Git Move: GitHub+modules proposal

On 6/29/2016 10:03 AM, Renato Golin via cfe-dev wrote:
> Since the umbrella project cannot see the sub-modules' commits without
> some form of update, there are two ways to do this:
>
> P. Per push: Every push (not commit) on all other repositories will
> trigger a hook that will hit a URL on our server, telling it to
> generate an incremental ID, update some umbrella's SeqID property (or
> even a commit SHA) and update the sub-modules.
How would you coordinate dependent updates to the sub-modules?  For 
example, in the case where someone makes a change to the LLVM sub-module 
that requires changes to the Clang sub-module?  Would there be some way 
for a developer to push both sets of updates as an atomic update to the 
umbrella project?  It probably doesn't matter often, as long as the 
updates to both sub-modules are pushed close together in time.

Tom.

On 29 June 2016 at 16:50, Tom Honermann <Thomas.Honermann at synopsys.com>
wrote:
> How would you coordinate dependent updates to the sub-modules?
We won't. Not now. Maybe later.

Right now, doing that means changing how we work and we're trying to
make the least number of changes at a time.

But this is the most requested feature and I'm sure we'll find
something that will work as soon as everything is stable.

cheers,
--renato

On 6/29/2016 2:00 PM, Renato Golin via llvm-dev wrote:
> On 29 June 2016 at 16:50, Tom Honermann <Thomas.Honermann at
synopsys.com> wrote:
>> How would you coordinate dependent updates to the sub-modules?
> We won't. Not now. Maybe later.
>
> Right now, doing that means changing how we work and we're trying to
> make the least number of changes at a time.
>
> But this is the most requested feature and I'm sure we'll find
> something that will work as soon as everything is stable.
If I understand the proposal and the status quo correctly, the migration 
to Git won't make cross-repo updates any worse than it is currently.  I 
think that avoiding regressions is an excellent goal for the initial 
migration.

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