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From: Pierre Neidhardt <mail@ambrevar.xyz>
To: "Ludovic Courtès" <ludo@gnu.org>,
	"Thompson, David" <dthompson2@worcester.edu>
Cc: guix-devel <guix-devel@gnu.org>, help-guix <help-guix@gnu.org>
Subject: Re: “Guix Profiles in Practice”
Date: Mon, 04 Nov 2019 11:10:38 +0100	[thread overview]
Message-ID: <87d0e8lzoh.fsf@ambrevar.xyz> (raw)
In-Reply-To: <87eeyp597u.fsf@gnu.org>

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Ludovic Courtès <ludo@gnu.org> writes:

> That sounds like a good idea.  ‘guix develop’ could keep the profiles it
> manages under ~/.cache/guix.
>
> Now, this would be very much stateful: you can’t tell in advance whether
> you’re going to build a new profile based on the current Guix, or
> whether you’re going to reuse a previously cached profile that could be
> arbitrarily old.  That doesn’t sound great.

This could be fixed, maybe the following way:

- Dump the channel specifications for every profile in
  etc/channel-spec.scm for instance.

- Merge Konrad's time-machine script so that we can easily reuse a
  channel specification to activate a profile.

> Perhaps we should focus on improving the performance of ‘guix
> environment’ first and foremost?

But isn't it orthogonal to this issue?

As I understand it, the current discussion is about "pinning"
profiles.
Should any dependency get garbage collected, an environment will need
Internet access to refetch the missing parts; I think this is what we
are trying to avoid, regardless of how fast `guix environment` is.


What about `guix environment --pin` instead of `guix develop`?

-- 
Pierre Neidhardt
https://ambrevar.xyz/

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  parent reply	other threads:[~2019-11-04 10:10 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-25 10:24 “Guix Profiles in Practice” Ludovic Courtès
2019-10-25 16:36 ` Thompson, David
2019-10-25 20:44   ` Pjotr Prins
2019-10-26 10:02     ` Pierre Neidhardt
2019-10-27  8:56       ` Pjotr Prins
2019-10-27 11:30         ` Pierre Neidhardt
2019-10-27 11:43           ` Hartmut Goebel
2019-10-27 20:06           ` Konrad Hinsen
2019-10-27 21:05             ` Pierre Neidhardt
2019-10-28 16:20               ` Konrad Hinsen
2019-10-30  8:36     ` Pierre Neidhardt
2019-10-26  0:34   ` Jonathan Frederickson
2019-10-26  1:19     ` Jonathan Frederickson
2019-10-26 10:00   ` Pierre Neidhardt
2019-10-27  3:29     ` Bengt Richter
2019-10-27  8:49       ` Pierre Neidhardt
2019-10-27 13:33     ` Konrad Hinsen
2019-10-27 13:53       ` Jelle Licht
2019-11-03 14:24   ` Ludovic Courtès
2019-11-03 16:49     ` Jonathan Frederickson
2019-11-04 10:12       ` Pierre Neidhardt
2019-11-04 14:33       ` Ludovic Courtès
2019-11-04 10:10     ` Pierre Neidhardt [this message]
2019-11-05 22:18       ` Carlo Zancanaro
2019-11-06  8:32         ` Pierre Neidhardt
2019-11-06 17:37           ` Ludovic Courtès
2019-11-07 12:42             ` Pierre Neidhardt
2019-10-26 18:32 ` Alex Griffin
2019-10-26 19:38   ` Pierre Neidhardt
  -- strict thread matches above, loose matches on Subject: below --
2019-11-02 18:51 Tanguy Le Carrour
2019-11-02 19:21 ` Pierre Neidhardt

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