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Re: [Chicken-hackers] Made a start with CHICKEN 5 proposal

From: Mario Domenech Goulart
Subject: Re: [Chicken-hackers] Made a start with CHICKEN 5 proposal
Date: Tue, 09 Sep 2014 14:49:43 +0000
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux)

On Tue, 09 Sep 2014 16:29:21 +0200 (CEST) Felix Winkelmann <address@hidden> 

>> Assuming egg authors won't create new repositories for their eggs for
>> CHICKEN 5, the henrietta-cache instance for CHICKEN 5 would still cache
>> versions that are only compatible with CHICKEN 4, although they will be
>> only meant to be used by CHICKEN 5.  I think that's not a really serious
>> issue, but I thought it should be mentioned, just in case somebody tries
>> "chicken-install5 <egg>:<version-for-chicken-4>".  We can work around
>> that by providing .release-info files specific to CHICKEN 5 (e.g., in a
>> chicken-5 branch), containing the versions compatible with CHICKEN 5
>> only.  Maybe there are better options?
> Well, the problem are eggs that are not in our central repository.

I think the versioning thing also affects the eggs in svn too.  For
example, suppose right now you have egg foo at version 1.0.  When
CHICKEN 5 is released, foo will be ported to CHICKEN 5.  What version
will it be in CHICKEN 4 and 5?

After we have the egg for both CHICKEN 4 and 5, how to manage new

I'm quite sure we have a solution for this problem, which is basically
the same as we had in the CHICKEN 3->4 transition.  Unfortunately, since
I was the last person I know to switch to CHICKEN 4, I didn't actually
faced that problem with my eggs.  Since nobody else was using CHICKEN 3,
I just froze egg versions for that CHICKEN version and continued to
update eggs for CHICKEN 4 only.

> There must be a way to mark for which versions an egg is
> intended. That's why I propose another entry in the .release-info
> files.

Another alternative would be using another .release-info file.  That
approach wouldn't require changes in henrietta-cache.

For example, we'd have

for CHICKEN 4, and


for CHICKEN 5.  Of course, other variations are possible.

It'd be just a matter of pointing to a CHICKEN 5-specific

Best wishes.

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