From: John J Foerch <jjfoerch@earthlink.net>
To: help-guix@gnu.org
Subject: Re: chicken scheme
Date: Sun, 17 Jul 2016 10:22:58 -0400 [thread overview]
Message-ID: <87twfo8htp.fsf@hecubus.retroj.net> (raw)
In-Reply-To: 87y45kibmz.fsf@gnu.org
ludo@gnu.org (Ludovic Courtès) writes:
> John J Foerch <jjfoerch@earthlink.net> skribis:
>
>> ludo@gnu.org (Ludovic Courtès) writes:
>>
>>> John J Foerch <jjfoerch@earthlink.net> skribis:
>>>
>>>> I have just learned about 'guix import', and have the thought that a
>>>> package importer would be the better way to go. Eventually I would like
>>>> to package software that I've written in CHICKEN for GuixSD, and only a
>>>> package importer would make that feasible.
>>>
>>> "Thompson, David" <dthompson2@worcester.edu> skribis:
>>>
>>>> On Fri, Jul 1, 2016 at 8:11 AM, John J Foerch <jjfoerch@earthlink.net> wrote:
>>>>
>>>>> First a question about /var/lib, and please excuse the newbie question.
>>>>> If chicken extensions were installed to /var/lib, wouldn't that go
>>>>> against the spirit of guix of keeping every program isolated? Isn't
>>>>> /var/lib global state?
>>>>
>>>> Yes, but this program is not Guix. It's a completely separate package
>>>> manager, and it should work as intended.
>>>
>>> Agreed. So I think there are two issues at hand:
>>>
>>> 1. How to arrange our ‘chicken’ package so that ‘chicken-install’
>>> works as intended.
>>>
>>> 2. How to import Eggs so that they can be first-class Guix packages.
>>>
>>> #2, which means writing an importer, is definitely the most profitable
>>> approach: It’s best as a user to have all the packages managed by the
>>> same tool, especially if that provides isolation, transactional upgrades
>>> and rollbacks, etc.
>>>
>>> #1 is useful for CHICKEN users who are used to ‘chicken-install’
>>> (similarly pip, npm, etc. are supposed to work.) It should work in the
>>> same way as on other distros. I’ve never used it though, so I can’t
>>> give precise advice.
>>>
>>
>> It installs all extensions to a single system-wide directory, with one
>> path component that gives the binary version. On my debian machine,
>> that is /var/lib/chicken/7 (for chicken 4.10.0). In that way, it is
>> simpler than something like npm.
>
> Right. So to address #1, we should make sure it uses /var/lib, as
> discussed earlier.
>
I'm finally getting back to this. One point about chicken is that it
does not support multiple extension directories, only one. They go into
<VARDIR>/chicken/<BINARY-VERSION>. This introduces a difficulty because
if VARDIR is /var/lib, then the default extensions (that come with
chicken) get installed to a global directory. The chicken-install
system will then work, but in the future when we add a package importer,
imported packages would also go into this global directory.
If on the other hand, VARDIR is (string-append out "/var/lib") the
default extensions and imported extensions go to the right place, but
manual chicken-install cannot write to that location.
Any further thoughts on this, given that information?
--
John Foerch
next prev parent reply other threads:[~2016-07-17 14:23 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-30 19:11 chicken scheme John J Foerch
2016-06-30 21:27 ` Ludovic Courtès
2016-06-30 21:43 ` John J Foerch
2016-07-01 9:36 ` Ludovic Courtès
2016-07-01 12:11 ` John J Foerch
2016-07-01 13:27 ` Thompson, David
2016-07-01 19:52 ` Ludovic Courtès
2016-07-01 20:22 ` John J Foerch
2016-07-02 10:21 ` Ludovic Courtès
2016-07-17 14:22 ` John J Foerch [this message]
2016-07-17 17:45 ` Ludovic Courtès
2016-06-30 22:05 ` John J Foerch
2016-07-01 9:39 ` Ludovic Courtès
2016-07-01 12:16 ` John J Foerch
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