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Subject: Re: [boost] A proposal for superproject structure and testing
From: Alexander Lamaison (awl03_at_[hidden])
Date: 2013-12-09 14:56:10

Andrey Semashev <andrey.semashev_at_[hidden]> writes:

> On Monday 09 December 2013 19:29:59 Alexander Lamaison wrote:
>> Vladimir Prus <ghost_at_[hidden]> writes:
>> > On 09.12.2013 21:17, Alexander Lamaison wrote:
>> >> Because, if so, that's not possible with git. Branches are just
>> >> nicknames for particular commits. They can come and go pretty much as
>> >> they please without disrupting other things. Submodules reference a
>> >> _commit_ and the commits remain in the repository regardless of what
>> >> happens to the branches.
>> >
>> > Then what does 'git gc' do?
>> Good point. I forgot about this. So, in general, the referenced
>> submodule needs to include the commit in _some_ branch for the
>> superproject to definitely reference a valid commit.
>> However, I think the discussion was about a commit already merged to the
>> submodule's master branch, so gc won't touch it.
> Not necessarily. In my example a boost release (i.e. a tagged commit to the
> superproject's master) references a commit in a submodule branch that is
> neither develop nor master. That branch may never be merged to develop or
> master.

You mean a special branch quickly made to revert a specific thing before
a superproject release but not part of the submodule's mainline
development (i.e. develop)? Surely those commits would be merged into
the submodule master? After all, they form part of a release, both for
the submodule and the superproject.


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