[racket-dev] proposal for moving to packages

On Mon, May 20, 2013 at 11:20 PM, Juan Francisco Cantero Hurtado <
iam at juanfra.info> wrote:

> On 05/20/13 23:24, Carl Eastlund wrote:
>
>> On Mon, May 20, 2013 at 4:58 PM, Asumu Takikawa <asumu at ccs.neu.edu>
>> wrote:
>>
>>  On 2013-05-20 14:42:15 -0600, Matthew Flatt wrote:
>>>
>>>> Eventually, when the dust settles, I think we'll want to convert every
>>>> directory to its own git repo, and then we can incorporate the
>>>> individual repos as git submodules.
>>>>
>>>
>>> One nice thing about the current repo organization is that push
>>> notifications for every part of the PLT codebase go to all of the
>>> developers.
>>>
>>> Will that still be available in this organization scheme? (I don't care
>>> if it's opt-in too much, but opt-out will hopefully mean more eyes see
>>> the code)
>>>
>>> Cheers,
>>> Asumu
>>>
>>>
>> Overall, I'm really glad to see Racket moving into the package system.  I
>> think it will be good for both (the Racket core and the package system).
>> I'd like to mention, though, that git submodules can be a real pain for
>> synchronizing development of multiple repositories.  They seem to have
>> been
>> designed primarily for importing upstream repositories, rather than for
>> multiple "peer" repositories.  I'm not much more fond of the alternatives
>> I
>> have tried, either; if we're committing to splitting Racket into multiple
>> repositories as well as multiple packages, we should be aware there may be
>> another minor git learning curve ahead.
>>
>> Thanks to Jay and Matthew for working on all of this!
>>
>>
> I also think that git submodules are a bad idea for packages. One git repo
> per package is more simple and less problematic.
>
> Thanks for the hard work :)


Git submodules imply one repo per package.  A submodule is a mechanism that
imports external repos into a checkout of a client repo, and records the
specific commit of the checkout so that there is a correlation of the
commits in each repo stored with the client.  If we're going to use
multiple repositories, we definitely need something like submodules in
order to retain a shared commit history.

--Carl
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