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Re: How to install GWL?

From: Kyle Meyer
Subject: Re: How to install GWL?
Date: Thu, 23 Jan 2020 01:15:40 +0000

Hi Ricardo,

Ricardo Wurmus <address@hidden> writes:

> How should the GWL be installed for maximum convenience and
> compatibility?  Does it make sense to install it as a channel so that it
> is tied to the user’s current version of Guix?  That would be pretty
> awkward and less convenient than just typing “guix install gwl”.
> If we stick with installing the workflow language as a package, how
> should package installation be handled?  Should all workflows require a
> channels definition for reproducibility, so that we could instantiate an
> inferior Guix using the exact specified version?  If none is provided we
> could fall back to the latest version of Guix.
> How does that sound?

The last combination sounds good to me: support/encourage specifying the
channel definition in the workflow, and fall back to the latest version
of Guix.  Though perhaps it'd be better to fall back to the user's
current version instead?  My thinking is that the user's version would
be a less frequently moving target, be more likely to have higher
substitute availability, and would more closely match any debugging and
testing the user is doing with, say, `guix environment'.

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