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From: Chris Marusich <cmmarusich@gmail.com>
To: Mark H Weaver <mhw@netris.org>
Cc: guix-devel@gnu.org
Subject: Re: Parameterized packages
Date: Thu, 18 Jul 2019 22:41:55 -0700	[thread overview]
Message-ID: <877e8e8tss.fsf@gmail.com> (raw)
In-Reply-To: <8736ldq74z.fsf@netris.org> (Mark H. Weaver's message of "Fri, 17 May 2019 14:15:29 -0400")

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Mark H Weaver <mhw@netris.org> writes:

>> Ludovic Courtès wrote:
>>> While thinking about <https://issues.guix.info/issue/35671> and
>>> looking
>>> for ways to allow users to install just the locales they need right
>>> from
>>> ‘guix package’, I realized that “parameterized packages” are a
>>> low-hanging fruit
>>
>> Wow.  Unexpected turn…
>>
>> I'm still thinking about this, so all this is just me doing it out
>> loud:
>>
>>>   (package
>>>     (inherit glibc-utf8-locales)
>>>     (properties `((locales . ("zh_CN.utf8")))))
>>>
>>> and tadaam! we have a parameterized package.
>>>
>>> There’s a couple of gotchas:
>>>
>>>   • We’d need to store more info in manifest entries so that
>>>     transformation options are preserved upon ‘guix upgrade’.
>>>
>>>   • We might need to expose the package parameters somehow, so
>>> that if
>>>     one types ‘--with-argument=foobar.z’, they get a correct
>>> error
>>>     message saying that “foobar” is not a known parameter.
>>
>> Interesting idea to piggy-back on the properties field, and it might
>> save some code (at least initially), but I don't see the overlap here.
>>
>> None of the current properties (superseded, upstream-name, *-variant,
>> cpe-name, hidden?) make much sense to expose in this way; they're
>> semimmutable facts about the package.
>
> Also, at present, the current 'properties' field can be changed without
> changing the derivation, and I think that's quite useful.  It's nice to
> be able to do things like increase the build timeouts on a core package,
> for the sake of a slow architecture, without forcing rebuilds of
> everything on top of that package on other architectures.
>
> So, I would prefer to see a different package field used for this.

I agree with Mark; using a custom package field seems better here
because the arguments change the derivation (don't they?), but
properties do not.  Maybe "argument-overrides"?

-- 
Chris

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  reply	other threads:[~2019-07-19  5:42 UTC|newest]

Thread overview: 57+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-14 11:54 Parameterized packages Ludovic Courtès
2019-05-14 15:17 ` Tobias Geerinckx-Rice
2019-05-17 14:23   ` Pierre Neidhardt
2019-05-17 18:15   ` Mark H Weaver
2019-07-19  5:41     ` Chris Marusich [this message]
2019-07-19 20:29     ` ison
2020-01-02 19:23       ` Pierre Neidhardt
2020-01-09 11:10         ` Pierre Neidhardt
2020-01-09 23:13           ` Marius Bakke
2020-01-10 12:29             ` Pierre Neidhardt
2020-01-10 16:19         ` Ludovic Courtès
2020-01-11 11:31           ` Pierre Neidhardt
2020-01-14 15:05             ` zimoun
2020-01-15  9:40               ` Pierre Neidhardt
2020-01-15 11:30                 ` zimoun
2020-01-15 11:51                   ` Pierre Neidhardt
2020-01-15 13:54                     ` zimoun
2020-01-16 19:06                       ` ison
2020-01-16 20:55                         ` Ricardo Wurmus
2020-01-17 16:34                           ` Pierre Neidhardt
2020-01-17  9:15                         ` L p R n d n
2020-01-17 16:46                           ` Pierre Neidhardt
2020-01-17 15:53                         ` zimoun
2020-01-17 16:56                           ` Pierre Neidhardt
2020-01-20 14:34                             ` zimoun
2020-01-21 10:56                             ` Build systems and implicit inputs Ludovic Courtès
2020-01-21 12:24                               ` zimoun
2020-01-21 13:07                                 ` Pierre Neidhardt
2020-01-21 18:02                                   ` zimoun
2020-01-19 20:34                           ` Parameterized packages Ludovic Courtès
2020-01-20  9:08                             ` Pierre Neidhardt
2020-01-20 14:50                               ` zimoun
2020-01-20 18:57                                 ` Pierre Neidhardt
2020-01-20 19:07                                   ` Pierre Neidhardt
2020-01-20 22:57                                   ` ison
2020-01-21 10:09                                     ` Pierre Neidhardt
2020-01-21 10:49                                     ` Ludovic Courtès
2020-01-21 12:15                                   ` zimoun
2020-01-21 13:13                                     ` Pierre Neidhardt
2020-01-21 19:04                                       ` zimoun
2020-01-22  9:54                                         ` Pierre Neidhardt
2020-01-22 12:23                                           ` zimoun
2020-01-24 21:56                                             ` ison
2020-01-26 19:35                                               ` zimoun
2020-01-27 10:13                                                 ` Pierre Neidhardt
2020-01-27 11:23                                                   ` zimoun
2020-01-27 11:50                                                     ` Pierre Neidhardt
2020-01-27 12:34                                                       ` zimoun
2020-01-27 10:04                                               ` Pierre Neidhardt
2020-01-25 18:52                                             ` John Soo
2020-01-27 10:17                                               ` Pierre Neidhardt
2020-01-20 14:12                             ` zimoun
2020-01-17 16:31                         ` Pierre Neidhardt
     [not found]                         ` <875zhbvzfz.fsf@guixSD.i-did-not-set--mail-host-address--so-tickle-me>
2020-01-17 16:41                           ` Pierre Neidhardt
2020-01-19 20:30                           ` Ludovic Courtès
2020-01-15 11:43                 ` Pierre Neidhardt
2020-01-15 11:44           ` Pierre Neidhardt

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