llvm dev - Feb 2018 - Repo directory layout

Hey all,
There seems to be two conventions for git repo directory layout.
The official docs suggest the following tree.
http://llvm.org/docs/GettingStarted.html#git-mirror

llvm (llvm repo)
  -> tools
      -> clang (clang repo)
      -> lld (lld repo)
etc.

However various llvm-project repos, suggest a different layout:
https://github.com/llvm-project/llvm-project-20170507
https://github.com/chapuni/llvm-project-submodule
Also, the official SVN hints at a similar layout (although not strictly the
same):
http://llvm.org/svn/llvm-project/

llvm-project
  -> llvm (llvm repo)
  -> clang (clang repo)
  -> lld (lld repo)
etc.

It seems like the CMake files support both options.
So we would like to know which of them should be supported for the
foreseeable future.
Thanks in advance, Liad.
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The first layout is older, and the second is newer. Going forward, things
are likely to move around. The second layout is more flexible because it
doesn't put any repo inside another repo, so I would recommend adopting it.
At the very least, using it will put you in a good position to adapt to any
future layout changes.


On Mon, Feb 19, 2018 at 1:36 AM Liad Mordekoviz via llvm-dev <
llvm-dev at lists.llvm.org> wrote:
> Hey all,
> There seems to be two conventions for git repo directory layout.
> The official docs suggest the following tree.
> http://llvm.org/docs/GettingStarted.html#git-mirror
>
> llvm (llvm repo)
>   -> tools
>       -> clang (clang repo)
>       -> lld (lld repo)
> etc.
>
> However various llvm-project repos, suggest a different layout:
> https://github.com/llvm-project/llvm-project-20170507
> https://github.com/chapuni/llvm-project-submodule
> Also, the official SVN hints at a similar layout (although not strictly
> the same):
> http://llvm.org/svn/llvm-project/
>
> llvm-project
>   -> llvm (llvm repo)
>   -> clang (clang repo)
>   -> lld (lld repo)
> etc.
>
> It seems like the CMake files support both options.
> So we would like to know which of them should be supported for the
> foreseeable future.
> Thanks in advance, Liad.
>
>
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>
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Reid Kleckner via llvm-dev <llvm-dev at lists.llvm.org> writes:
> The first layout is older, and the second is newer. Going forward,
> things are likely to move around. The second layout is more flexible
> because it doesn't put any repo inside another repo, so I would
> recommend adopting it. At the very least, using it will put you in a
> good position to adapt to any future layout changes.
Note that I don't think the second layout supports having
debuginfo-tests at the same level as "llvm."  It has to be in
llvm/projects.  It would be nice to remove that restriction.

                         -David