Re: [Boost-build] Git directory structure

Subject: Re: [Boost-build] Git directory structure
From: Vladimir Prus (ghost_at_[hidden])
Date: 2013-12-09 02:58:33

On 09.12.2013 08:37, Dave Abrahams wrote:
> Vladimir Prus <ghost_at_[hidden]> writes:
>
>> On 09.12.2013 01:51, Dave Abrahams wrote:
>>> Vladimir Prus <vladimir_at_[hidden]> writes:
>>>
>>>> It seems that after all is said and done, git repository for
>>>> Boost.Build still features that 'v2' directory at the top. How do we
>>>> recover this from this? I suppose I can run make a backup copy of
>>>> current 'master' and 'develop' branches, 'git filter-branch' on master
>>>> and develop with appropriate voodoo, then 'git push -f'. Does that
>>>> seems OK in principle?
>>>
>>> Do _not_ rewrite history, or you will mess up the submodule references
>>> in the super-project.
>>
>> It is trivial to update submodule references.
>
> ...which would require rewriting history in the super-project, which is
> in general not something one should ever do in a public repository.
> Since the Boost repositories have gone live, rewriting history is a
> no-no.  I don't know if there's an option at GitHub to prevent history
> rewriting in the official repositories, but if there is, it should be
> enabled.

Why would you need to rewrite history in super-project? Rewriting history
of the 'develop' branch of the 'build' repo does not necessary invalidate
any ids that the super-project refers to - it's easy enough to create
a new branch, say 'develop-right-after-conversion' that would keep such revisions
alive. You will only need to update super-project heads to point to new changeid.

- Volodya