llvm dev - Jul 2016 - [RFC] One or many git repositories?

Hi Justin,

On Wed, Jul 20, 2016 at 5:02 PM, Justin Bogner via llvm-dev
<llvm-dev at lists.llvm.org> wrote:
> FWIW, I'm opposed. I'm not convinced that the problems with
multiple
> repos are any worse than the problems with a single repo, which makes
> this more or less just change for the sake of change, IMO.
Right now we *are* in a monorepo, with sequential revision numbers
across llvm and clang, so I'd say trying to move to separate repos is
actually the "change" here.  :)

-- Sanjoy

On 21 July 2016 at 01:23, Sanjoy Das via llvm-dev
<llvm-dev at lists.llvm.org> wrote:
> Right now we *are* in a monorepo, with sequential revision numbers
> across llvm and clang, so I'd say trying to move to separate repos is
> actually the "change" here.  :)
Not true. SVN can be checked out by directory, Git needs to be cloned
on the root.

Today I *can* checkout only LLVM and Clang. On a single Git repo I can't.

cheers,
--renato

> Today I *can* checkout only LLVM and Clang. On a single Git repo I
can't.
This is true if you s/checkout/clone/.  With a single repo, you must
clone (download) everything (*), but after you've done so you can use
sparse checkouts to check out (create a working copy of) only llvm and
clang.  So you should only notice the fact that there exist things
other than llvm and clang when you first clone (download) llvm.

Either way switching to git is going to be a change from the status
quo.  Personally I'm more interested in finding the best overall
solution than the solution which is "most similar" to the current
setup under some metric.

(*) Technically, if you do a shallow clone, you have to download a
single revision of everything.  That's the 90mb number from my
original post.

On Wed, Jul 20, 2016 at 5:25 PM, Renato Golin via llvm-dev
<llvm-dev at lists.llvm.org> wrote:
> On 21 July 2016 at 01:23, Sanjoy Das via llvm-dev
> <llvm-dev at lists.llvm.org> wrote:
>> Right now we *are* in a monorepo, with sequential revision numbers
>> across llvm and clang, so I'd say trying to move to separate repos
is
>> actually the "change" here.  :)
>
> Not true. SVN can be checked out by directory, Git needs to be cloned
> on the root.
>
> Today I *can* checkout only LLVM and Clang. On a single Git repo I
can't.
>
> cheers,
> --renato
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