[llvm-dev] [RFC] One or many git repositories?

[Alexandre Isoard via llvm-dev]

I have some clue. Clang started as a "side"-project to LLVM and it was easy
to grow as a symbiote in the build system of LLVM.

To stay on topic, I have one complaint about the single repository and it
is that it might slow down efforts to separate all those project into
independent build systems. For example, clang-extra-tools still require to
be built into clang (probably for the same reason as above).

I have no idea how to setup the build system of a tool that would require
libclang. I never found any pkgconfig nor clang-config utilities for that.
Is there any reason?

On Fri, Sep 9, 2016 at 3:34 PM, Mehdi Amini <mehdi.amini at apple.com> wrote:

>
> On Sep 9, 2016, at 7:22 AM, Alexandre Isoard <alexandre.isoard at gmail.com>
> wrote:
>
> What I never understood is that Clang depends on LLVM (and LLVM doesn't
> depends on Clang), yet Clang source code is more or less expected to be in
> the LLVM source tree where I would have expected the reverse, that is LLVM
> in the source tree of Clang and optionally compiled when compiling Clang.
>
>
> I can't answer about why it is this way but:
> 1) you don't *have to* put clang inside llvm, it is just a convention.
> 2) the current monorepo proposal have all the projects one next to each
> other, and by default cmake path/to/llvm would configure only LLVM.
>
> --
> Mehdi
>
>
> On Fri, Sep 9, 2016 at 3:11 PM, Mehdi Amini via llvm-dev <
> llvm-dev at lists.llvm.org> wrote:
>
>>
>>
>> On Sep 9, 2016, at 2:11 AM, Alexander Benikowski <sebal007 at googlemail.com>
>> wrote:
>>
>> I'd vote for having each component in a seperated Repository and using a
>> Monorepo with Submodules to work with.
>> Since CLang depends on LLVM but not vice versa (if i am not mistaken. I'm
>> new here), i'd prefer to just work with the LLVM repo if it is desired.
>>
>>
>> Can you elaborate why and what kind of workflow you have that would
>> benefit from this?
>>
>> Also did you read the document I sent with the examples?
>>
>> --
>> Mehdi
>>
>>
>>
>>
>> 2016-09-08 21:49 GMT+02:00 Renato Golin via llvm-dev <
>> llvm-dev at lists.llvm.org>:
>>
>>> On 8 September 2016 at 19:37, Mehdi Amini via llvm-dev
>>> <llvm-dev at lists.llvm.org> wrote:
>>> > I'd expect a cmake shortcut cmake
>>> > -DLLVM_ENABLE_PROjECTS=clang,libcxx,compiler-rt
>>>
>>> Hey, I like this idea!
>>>
>>> In that case, we don't need the directories in any particular
>>> location, as CMake would be able to find and link any place *we* want
>>> to put them in (in tree, flat out) and pull out their CMake files.
>>>
>>> This would also help each project to be built in its own, if they so
>>> require, without upsetting the LLVM-canon build style.
>>>
>>> cheers,
>>> --renato
>>> _______________________________________________
>>> LLVM Developers mailing list
>>> llvm-dev at lists.llvm.org
>>> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>>>
>>
>>
>> _______________________________________________
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>> llvm-dev at lists.llvm.org
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>>
>>
>
>
> --
> *Alexandre Isoard*
>
>


-- 
*Alexandre Isoard*
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